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	SECTION 11 60 01
	BROADCAST, THEATER AND STAGE EQUIPMENT
	Copyright 2017 - 2018 ARCAT, Inc. - All rights reserved
	** NOTE TO SPECIFIER ** Wenger Corporation, JR Clancy and GearBoss product brands; Broadcast, theater and stage equipment, sound-control door assemblies, acoustic room components, lockers, storage assemblies, specialty casework, special purpose rooms, integrated lighting, integrated controls and audio video systems. This section is based on the products of Wenger Corporation, which is located at: Wenger Corporation, JR Clancy and GearBoss, which is located at: 555 Park Dr. Owatonna, MN 55060 Toll Free Tel: 800-4WENGER (493-6437) Tel: 507-455-4100 Fax: 507-455-4258 Email: request info Web: https://www.wengercorp.com | http://www.jrclancy.com Wenger Corporation - Syracuse, which is located at: 7041 Interstate Island Road Syracuse, NY 13209 Toll Free Tel: 800-836-1885 Tel: (315) 451-3440 Email: request info (info@wengercorp.com) [ Click Here ] for additional information. Wenger Corporation and J.R. Clancy are Your Performance Partners. In 2011, Wenger and J.R. Clancy brought together almost 200 years of experience to provide complete solutions for Performing Arts Centers and Theatres. We design, manufacture and install leading theatrical equipment worldwide from Complete Rigging Solutions and Controls to Acoustical Shell Enclosures and Orchestra Pit Fillers as well as a full-line of quality furnishings. Wenger Corporation provides innovative, high-quality products and solutions for performing arts and music and theatre education. For more than 65 years Wenger has been listening to what our customers need and then designing and manufacturing innovative, durable and functional products to meet those needs. Wenger pioneered sound isolation in practice rooms and now offers modular rooms with virtual acoustic technology (VAE) and built-in digital recording/playback. Products for music and theatre spaces include: pre-engineered acoustical doors, sound-isolating music practice rooms, acoustical shells, acoustical wall and ceiling treatment, instrument and equipment storage cabinets, portable audience seating, portable stage platforms and staging systems, music posture and portable audience chairs, orchestra pit fillers, makeup stations, tiered risers and music furniture. Since 1885, J.R. Clancy has been a leading designer and supplier of theatrical rigging systems, accessories and services to the theatre and entertainment industries around the world. Our team of experienced mechanical and electrical engineers, project managers, and installers provides expert technical assistance and information to architects, general contractors, theatre consultants, end users, and dealers. With a combination of innovative designs, outstanding quality, and a century of experience, J.R. Clancy has become the leading manufacturer of theatrical stage equipment in the United States. We provide everything from the simplest hemp sets and rigging hardware to complete, highly sophisticated motorized rigging systems-for use just about anywhere.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Sound-control doors including the following:
			1.	Integrated sound control door assemblies.
		B.	Acoustic room components including the following:
			1.	Acoustical wall and ceiling panels. (Traditional Acoustic Panel Series)
			2.	Tunable wall panels. (Dynamic Acoustic Panel Series)
			3.	Motorized acoustical banners.
		C.	Theater and stage equipment including the following:
			1.	Acoustical clouds.
			2.	Acoustical shells, DIVA.
			3.	Acoustical shells, Maestro.
			4.	Acoustical shells, Legacy Classic.
			5.	Acoustic tower, Legacy Select Acoustic Tower.
			6.	Stage tower transporter.
			7.	Orchestra pit fillers.
			8.	Stage platforms.
		D.	Specialty casework including the following:
			1.	Musical instrument storage casework.
			2.	Music library system.
			3.	Fixed theater make-up stations.
			4.	Portable theater make-up stations.
			5.	Metal shelving systems.
		E.	Special purpose rooms including the following:
			1.	Modular sound-isolation practice rooms.
		F.	Mobile performance systems including the following:
			1.	Showmobile Mobile Stage and Canopy.
		G.	Integrated lighting control systems including the following:
			1.	Controls for hybrid lighting.
			2.	Controls for LED lighting.
		H.	Curtains and Rigging Systems:
			1.	Fire curtain systems, brail fire curtain.
			2.	Fire curtain systems, straight lift curtain, proscenium opening up to 18'T x 34'W.
			3.	Fire curtain systems, straight lift curtain, proscenium opening up to 22'T x 42'W.
			4.	Fire curtain systems, straight lift curtain, proscenium opening up to 30'T x 50'W.
			5.	Fire curtain systems, straight lift curtain, proscenium opening greater than 30'T x 50'W.
			6.	Fire curtain systems, curtain accessories.
			7.	Counterweight rigging.
			8.	Helios hoist.
			9.	PowerLift hoist.
			10.	PowerLite hoist.
			11.	Varion hoist.
			12.	Titan hoist.
			13.	PowerAssist hoist.
			14.	PowerLine hoist.
			15.	Self-Climbing hoist.
			16.	Performer hoist.
			17.	Custom line shaft hoist.
			18.	Drum hoist.
			19.	Pile-up drum hoist.
			20.	Motorized rigging accessories.
			21.	Motorized rigging, control system.
			22.	Stage curtains and tracks.
			23.	Rope and dead hung rigging.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete sections below not relevant to this project; add others as required. The first five sections are not relevant to stage platforms. Delete if stage platforms are not required.
		A.	Section 05 12 00 - Structural Steel Framing.
		B.	Section 05 50 00 - Metal Fabrications.
		C.	Section 05 50 00 - Metal Fabrications.
		D.	Section 06 10 00 - Rough Carpentry.
		E.	Section 08 11 13.16 - Custom Hollow Metal Doors and Frames.
		F.	Section 08 71 53 - Security Door Hardware.
		G.	Section 09 22 16.13 - Non-Structural Metal Stud Framing.
		H.	Section 09 21 16.23 - Gypsum Board Shaft Wall Assemblies.
		I.	Section 09 65 13 - Resilient Base and Accessories.
		J.	Section 12 32 16 - Manufactured Plastic-Laminate-Clad Casework.
		K.	Section 13 21 48 - Sound-Conditioned Rooms.
		L.	Division 16 - Electrical for power wiring.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	American Concrete Institute (ACI):
			1.	ACI 117 - Standard Specification for Tolerances for Concrete Construction and Materials.
		B.	American Hardboard Association (AHA):
			1.	AHA A135.4-95: Basic Hardboard.
		C.	American Laminators Association (ALA):
			1.	ALA GP 28.
		D.	American National Standards Institute (ANSI):
			1.	ANSI 115.1: Specifications for Steel Door and Frame Preparation for Hardware.
			2.	ANSI A208.1 - Particleboard.
			3.	ANSI A208.2 - Medium Density Fiberboard.
			4.	ANSI A250.10: Test Procedure and Acceptance Criteria for Prime Painted Steel Surfaces for Steel Doors and Frames.
			5.	ANSI B17.1 - Keys and Key Seats.
			6.	ANSI B18.2.1 - Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws.
			7.	ANSI B18.2.2 - Nuts for General Application: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts.
			8.	ANSI B106.1M - Design of Transmission Shafting.
			9.	ANSI E1.4 - Entertainment Technology - Manual Counterweight Rigging Systems.
			10.	ANSI E1.6-1 - Entertainment Technology - Powered Hoist Systems.
			11.	ANSI E1.11 - Entertainment Technology -- USITT DMX512-A -- Asynchronous Serial Digital Data Transmission Standard For Controlling Lighting Equipment And Accessories.
			12.	ANSI E1.20 - Entertainment Technology-RDM-Remote Device Management Over USITT DMX512 Networks.
			13.	ANSI E1.22 - Entertainment Technology - Fire Safety Curtain Systems.
			14.	ANSI E1.47 - Entertainment Technology - Recommended Guidelines for Entertainment Rigging System Inspections.
			15.	ANSI Z535.4 - Product Safety Signs and Labels.
			16.	ANSI-BHMA A156.9 - Cabinet Hardware.
		E.	American Plywood Association (APA).
			1.	Performance Standards and Policies for Structural Use Panels.
		F.	American Society of Civil Engineers (ASCE):
			1.	ASCE 7 - Minimum Design Loads for Buildings and Other Structures.
		G.	Architectural Woodwork Institute (AWI):
			1.	Quality Manual, 8th Edition.
		H.	ASTM International (ASTM):
			1.	ASTM A36/A 36M - Standard Specification for Carbon Structural Steel.
			2.	ASTM A48 - Standard Specification for Gray Iron Castings.
			3.	ASTM A153 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.
			4.	ASTM A500 -Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes.
			5.	ASTM A501 - Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing.
			6.	ASTM A510 - Standard Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel, and Alloy Steel.
			7.	ASTM A513 - Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing.
			8.	ASTM A536 - Standard Specification for Ductile Iron Castings.
			9.	ASTM A1008/A 1008M - Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable.
			10.	ASTM A1011 - Standard Specification for Steel, Sheet and Strip, Hot Rolled, Carbon, Structural, High-Strength Low Alloy, High-Strength Low Alloy With Improved Formability, and Ultra High Strength.
			11.	ASTM B85 - Standard Specification for Aluminum Alloy Die Castings.
			12.	ASTM B209 - Specification for Aluminum and Aluminum-Alloy Sheet and Plate.
			13.	ASTM B221 - Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
			14.	ASTM B429 - Specification for Aluminum-Alloy Extruded Structural Pipe and Tube.
			15.	ASTM C423 - Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method.
			16.	ASTM C510 - Standard Specification for General Requirements for Steel Rods and Coarse Round Wire, Carbon Steel.
			17.	ASTM C503 - Specification for Silvered Flat Glass Mirror.
			18.	ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
			19.	ASTM E90 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements.
			20.	ASTM E 413 - Classification for Rating Sound Transmission.
			21.	ASTM E488 - Standard Test Methods for Strength of Anchors in Concrete and Masonry Elements.
			22.	ASTM E795 - Practices for Mounting Test Specimens during Sound Absorption Tests.
			23.	ASTM F1145 - Standard Specification for Turnbuckles, Swaged, Welded, Forged.
		I.	Audio Engineering Society (AES): AES-4id - AES information document for room acoustics and sound reinforcement systems -- Characterization and measurement of surface scattering uniformity.
		J.	Builders Hardware Manufacturers Association (BHMA): ANSI/BHMA A156.9 - Cabinet Hardware.
		K.	California, Department of Consumers Affairs, Bureau of Home Furnishings and Thermal Insulation:
			1.	California Technical Bulletin 117 - requirements, Test Procedures and Apparatus for Testing Flame Retardance of Resilient Filling Materials Used in Upholstered Furniture.
		L.	Canadian Electrical Code (CDC).
		M.	Code of Federal Regulations (CFR):
			1.	16 CFR 1201 - Safety Standard for Architectural Glazing Materials.
			2.	16 CFR 1610.61 - Clarification of Flammability Standard for Clothing Textiles (CS 191-53).
		N.	GREENGUARD Environmental Institute (GEI): GREENGUARD certified low emitting products.
		O.	Hardwood Plywood and Veneer Association (HPVA): HPVA HP-1 - Hardwood and Decorative Plywood.
		P.	International Organization for Standardization (ISO): ISO 9001 Quality management systems - Requirements.
		Q.	International Building Code (IBC).
			1.	IBC 2018, Chapter 8.
		R.	Laminating Materials Association:
			1.	LMA EDG-1: Voluntary Product Standard and Typical Physical Properties of Edgebanding Materials.
			2.	LMA SAT-1: Voluntary Product Standard and Typical Physical Properties of Saturated Paper Overlays.
		S.	National Association of Architectural Metal Manufacturers (NAAMM): Metal Finishes Manual for Architectural and Metal Products.
		T.	National Electrical Code (NEC).
		U.	National Electrical Manufacturers Association (NEMA): NEMA LD 3-2000 - High Pressure Decorative Laminates.
		V.	National Fire Protection Association (NFPA): NFPA 80 - Standard For Fire Doors and Other Opening Protectives.
		W.	Underwriter's Laboratory (UL):
			1.	UL 10C - Standard for Positive Pressure Fire Tests of Door Assemblies.
			2.	UL 508E - IEC Type '2' Coordination Short Circuit Tests of Electromechanical Motor Controllers in Accordance with IEC Publication 947-4-1.
			3.	UL 723 - Test for Surface Burning Characteristics of Building Materials.
			4.	UL 1480, UL 2043 - Fire Test for Heat and Visible Smoke Release for Discrete Product and Their Accessories Installed in Air-Heating Spaces.
		X.	U.S. Architectural and Transportation Barriers Compliance Board: Americans with Disabilities Act (ADA) and Architectural Barriers Act (ABA) Accessibility Guidelines for Buildings and Facilities.
		Y.	U.S. Department of Commerce, National Institute of Standards and Technology: DOC PS 1: U.S. Product Standard for Construction and Industrial Plywood.
		Z.	US Green Building Council (USGBC): Leadership in Energy and Environmental Design (LEED).
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01 30 00 - Administrative Requirements.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Provide test results by certified independent testing laboratory indicating compliance with performance requirements.
			2.	Rated capacities, construction details, material descriptions, dimensions of individual components, profiles, and finishes.
			3.	Maintenance instructions and recommendations.
			4.	Acoustical testing data demonstrating minimal compliance with required acoustical performance criteria.
			5.	Photometric data for light fixtures, if applicable to the product.
	** NOTE TO SPECIFIER ** Retain applicable paragraphs below for LEED projects. Add additional requirements that apply. Verify credits required and availability of materials from the Manufacturer. Refer to USGC LEED Reference Guide for detailed information. Not applicable to rigging or curtain products, delete if only those products are specified. Delete if not required.
		C.	LEED Submittals:
			1.	Manufacturer's certificate indicating that composite wood products and adhesives contain no added urea formaldehyde.
			2.	Manufacturer's certificate indicating percentages by weight of post-consumer and pre-consumer recycled content. Include statement indicating costs for each product having recycled content.
			3.	Credit EQ 4.4: Manufacturer's Signed Confirmation indicating that composite wood products and adhesives used in acoustical shells contain no urea formaldehyde.
		D.	Shop Drawings:
			1.	Submit component and project specific installation drawings, cut sheets, and schedules showing all information necessary to fully explain the design features, appearance, function, fabrication, installation, and use of system components in all phases of operation. Submit for approval before beginning any fabrication, installation, or erection.
			2.	Include fabrication and installation details. Distinguish between factory and field work.
			3.	Include plans, elevations, sections, attachments and work by other trades.
			4.	Include wiring diagrams when applicable.
	** NOTE TO SPECIFIER ** Retain below if project has seismic requirements. Delete if not required.
			5.	Indicate seismic bracing and fastening requirements as applicable.
		E.	Coordination Drawings: Project-specific Coordination Drawings, indicating the following items drawn and coordinated with each other. Include information required by Installers of each item in order to coordinate the Work. Include the following:
			1.	Relationship of items shown on separate Shop Drawings.
			2.	Dimensions and required clearances of adjacent or related work.
			3.	Order of assembly of separate items.
			4.	Information required for interface with other trades and components, including mechanical, electrical, and communication work.
		F.	Product Schedule:
			1.	Use designations indicated on the Drawings.
			2.	Include room locations, dimensions, accessories, finishes, and project specific notes.
		G.	Verification Samples:
			1.	Exposed Finishes and Finish Materials: Not less than 4 by 4 inches (102 by 102 mm), for each type, color, pattern, surface and material selected.
		H.	Closeout Submittals:
			1.	Operation and Maintenance Data: For adjusting, repairing and replacing components and accessories.
			2.	Warranty: Submit manufacturer's warranty.
			3.	As-Built Drawings: For completed work.
		I.	Field Quality Control Reports: Documenting inspections and demonstrations of installed products and equipment.
	1.5	QUALITY ASSURANCE
		A.	Source Limitations: Obtain all products from a single manufacturer through one source providing a comprehensive material and installation package:
		B.	Manufacturer Qualifications: Minimum 5 years' experience in design and manufacturing of similar products on projects of similar size, scope and complexity, and with the production capacity to meet the construction and installation schedule.
		C.	Installer Qualifications: ESTA-certified and experienced in installation of the work of this section and acceptable to the manufacturer and in the regular employ of the manufacturer.
	** NOTE TO SPECIFIER ** All Wenger electrical components are supplied as listed and labeled by UL and/or ETL to meet typical local electrical inspection requirements.
		D.	Electrical Components: Listed and labeled per NFPA 70, Article 100 by a testing agency acceptable to Authorities Having Jurisdiction (AHJ).
	** NOTE TO SPECIFIER ** Indicate accessibility requirements on drawings. Delete if not required.
		E.	Regulatory Requirements: Where components are indicated to comply with accessibility requirements, comply with the U.S. Architectural and Transportation Barriers Compliance Board's "Americans with Disabilities Act (ADA) and Architectural Barriers Act (ABA) Accessibility Guidelines for Buildings and Facilities".
	** NOTE TO SPECIFIER ** Delete if rigging systems are not required.
		F.	Curtain and Rigging Systems, Manufacturer Qualifications: Minimum 5 years experience in manufacture of similar products in use in similar environments, including project size, and complexity, and with the production capacity to meet the construction and installation schedule.
			1.	Theatrical rigging systems are specialized overhead lifting systems. Due to the highly specialized nature of theatrical rigging equipment, and the safety requirements of the equipment, the rigging products provided for this work shall be the products of a single rigging manufacturer for quality, consistency and ease of integration. Accessory items such as wire rope, fittings, and curtain tracks may be from other specialty manufacturers.
			2.	The rigging manufacturer shall have the following programs in place.
				a.	The manufacturer shall have a product testing program, including determination of recommended working loads for products based on destructive testing and review by a licensed engineer.
				b.	The manufacturer of the performance equipment shall have a quality management system that is registered to the ISO 9001standard.
				c.	The manufacturer shall carry primary product and general liability insurance of $2,000,000 each, with excess liability coverage of $10,000,000 and a Contractors Professional Liability policy with $2,000,000 coverage.
	** NOTE TO SPECIFIER ** Delete if rigging systems are not required.
		G.	Rigging Systems, Installer Qualifications: Manufacturer's authorized representative, trained and approved for installation of units required for this Project.
			1.	The Rigging Contractor shall be an approved rigging manufacturer or an authorized representative or dealer of an approved manufacturer. The contractor shall have been installing stage rigging systems for a period of five years or more, and shall have completed at least ten installations of this type and scope. The AHJ shall be the final judge of the suitability of experience.
			2.	The Rigging Contractor shall employ an Entertainment Technician Certification Program (ETCP) Certified Theatre Rigger. A Certified Rigger shall be either the project manager or site foreman, and be responsible for the overall project including the layout, inspection, and onsite user training.
	** NOTE TO SPECIFIER ** Delete if rigging systems are not required.
		H.	Rigging Systems, Minimum Standards of Safety, the following factors shall be used:
			1.	Cables and Fittings: 8:1 Safety Factor.
			2.	Cable D/d ratio: Sheave tread diameter is the minimum D/d ratio per the "Wire Rope User Manual" or recommended by the wire rope manufacturer.
			3.	Tread Pressures: 500 lbs. for cast iron, 900 lbs. for Nylatron, 1000 lbs. for steel.
			4.	Maximum Fleet Angle: 1-1/2 degrees.
			5.	Steel: 1/5 of yield strength or per AISC Specification.
			6.	Bearings: Two times required load at full speed for 2000 hours.
			7.	Bolts: Minimum SAE J429 Grade 5 (ISO R898 Class 8.8), zinc plated.
			8.	Motors: 1.0 NEMA Service Factor.
			9.	Gearboxes: 1.25 Mechanical Strength Service Factor, 1.0 Gearing Service Factor.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Deliver materials in manufacturer's original unopened containers with manufacturer's labels attached. Do not deliver material until spaces to receive them are clean, dry, and ready for their installation. Ship to jobsite only after roughing-in, painting and other finishing work has been completed, installation areas are ready to accept work.
		B.	Handle and install materials to avoid damage.
	1.7	PROJECT CONDITIONS
		A.	Environmental Limitations: Do not deliver or install materials until spaces are enclosed and weather tight, wet work in spaces is complete and dry, HVAC system is operating and maintaining ambient temperature at occupancy levels during the remainder of the construction period.
		B.	Field Measurements: Verify field measurements as indicated on Shop Drawings. Where measurements are not possible, provide control dimensions and templates.
			1.	Coordinate installation and location of blocking and supports as requested.
			2.	Verify openings, clearances, storage requirements and other dimensions relevant to the installation and final application.
			3.	Where applicable, coordinate locations of electrical junction boxes.
		C.	Field Measurements: Verify field measurements as indicated on Shop Drawings. Where measurements are not possible, provide control dimensions and templates.
			1.	Coordinate locations of electrical junction boxes.
		D.	Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
	1.8	WARRANTY
	** NOTE TO SPECIFIER ** The "special warranty" is a warranty provided by the manufacturer to the building owner. The warranty terms below are available from Wenger Corp. Verify that other manufacturers listed or seeking approval furnish warranty meeting requirements. Durability is a key aspect of Wenger's product value for Owners. The available warranty reflects Wenger's high confidence in the performance of their products. Delete if not required.
		A.	Special Warranty for Sound Control Doors: Manufacturer's written warranty indicating manufacturer's intent to repair or replace components of sound-control door assemblies that fail in materials or workmanship within 5 years from date of Substantial Completion. Failures are defined to include, but are not limited to, the following:
			1.	Fracturing or breaking of unit components including doors and hardware resulting from normal use other than vandalism.
			2.	Warping or deterioration of components not resulting from leaks, flooding, or other uncontrolled moisture or humidity.
			3.	Failure of acoustical gaskets and seals.
	** NOTE TO SPECIFIER ** Delete if not required.
		B.	Special Warranty for Acoustic Room Components: Manufacturer's written warranty indicating manufacturer's intent to repair or replace panels that fail in materials or workmanship. Failures are defined to include, but are not limited to, the following:
			1.	Fracturing or breaking of unit components which results from normal wear and tear and normal use other than vandalism.
			2.	Warping of components not resulting from leaks, flooding, or other uncontrolled moisture or humidity.
			3.	Failure of unit to perform acoustically in accordance with manufacturer's published data.
	** NOTE TO SPECIFIER ** Delete warranty periods not required.
			4.	Sound-Absorbing and Sound-Diffusing Panels Warranty Period: 5 years.
			5.	Tunable Wall Panels Warranty Period: 5 years.
			6.	Motorized Acoustical Banners Warranty Period: 3 years.
	** NOTE TO SPECIFIER ** Delete if not required.
		C.	Special Warranty for Specialty Casework: Manufacturer's written warranty indicating manufacturer's intent to repair or replace components of specialty casework that fail in materials or workmanship within 10 years from date of Substantial Completion. Failures are defined to include, but are not limited to, the following:
			1.	Fracturing or breaking of casework components including doors, panels, shelves, or hardware resulting from normal wear and tear and normal use other than vandalism.
			2.	Delamination or other failures of glue bond of components.
			3.	Warping of casework components not resulting from leaks, flooding, or other uncontrolled moisture or humidity.
			4.	Failure of operating hardware.
	** NOTE TO SPECIFIER ** Delete if not required.
		D.	Special Warranty for Special Purpose Rooms: Manufacturer's written warranty indicating manufacturer's intent to repair or replace components of sound-isolation practice rooms that fail in materials or workmanship within 5 years from date of Substantial Completion. Failures are defined to include, but are not limited to, the following:
			1.	Fracturing or breaking of room components, including doors, panels, or hardware, that results from normal wear and tear and normal use other than vandalism.
			2.	Delamination or other failures of glue bond of components.
			3.	Warping of components not resulting from leaks, flooding, or other uncontrolled moisture or humidity.
			4.	Failure of operating hardware.
			5.	Failure of acoustical gaskets and seals.
			6.	Failure of room to perform acoustically in accordance with manufacturer's published data.
	** NOTE TO SPECIFIER ** Delete if not required.
		E.	Special Warranty for Integrated Controls for Lighting: Repair/replacement warranties shall be provided by the equipment manufacturers. Except as noted, each manufacturer's published warranty policy shall apply a two-year coverage term (after acceptance).
	** NOTE TO SPECIFIER ** Delete if curtain systems not required.
		F.	Special Warranty for Curtain Systems: Provide manufacturer's standard limited 3 year warranty against defects in materials or workmanship from the date of Substantial Completion. The warranty is contingent on inspection of the equipment and training of its use being provided annually by an Entertainment Technician Certification Program (ETCP) Certified Theatre Rigger at the Owner's expense. It is the responsibility of the end user to make arrangements for the annual inspection and training. Failure to obtain the inspection and training annually shall result in a one year warranty. The warranty shall not cover equipment that has become defective due to misuse, abuse, accident, act of God, alteration, vandalism, ordinary wear and tear, improper maintenance, or used not in a manner intended.
	** NOTE TO SPECIFIER ** Delete if mobile stage systems not required.
		G.	Special Warranty for Mobile Stage Systems (Showmobile): Provide manufacturer's standard limited 5 year warranty from the date of delivery of the product.
	** NOTE TO SPECIFIER ** Delete if rigging systems not required.
		H.	Special Warranty for Rigging Systems: Provide manufacturer's standard limited 3 year warranty against defects in materials or workmanship from the date of Substantial Completion. The warranty is contingent on inspection of the equipment and training of its use being provided annually by an Entertainment Technician Certification Program (ETCP) Certified Theatre Rigger at the Owner's expense. It is the responsibility of the end user to make arrangements for the annual inspection and training. Failure to obtain the inspection and training annually shall reduce warranty coverage to one year after substantial completion. The warranty shall not cover equipment that has become defective due to misuse, abuse, accident, act of God, alteration, vandalism, ordinary wear and tear, improper maintenance, or used not in a manner intended.
	** NOTE TO SPECIFIER ** Delete if not required.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Wenger Corporation, including all Wenger, J.R. Clancy and GearBoss product brands. Wenger Corporation, which is located at: 555 Park Dr.; Owatonna, MN 55060; Toll Free Tel: 800-4WENGER (493-6437); Tel: (507) 455-4100; Fax: (507) 455-4258; Email: request info (info@wengercorp.com); Wenger Corporation - Syracuse, which is located at 7041 Interstate Island Road, Syracuse, NY 13209; Toll Free Tel: 800-836-1885; Tel: (315) 451-3440; Email: request info (JRCinfo@wengercorp.com); Web: https://www.wengercorp.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions shall be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
			1.	Manufacturers seeking approval shall submit the following:
				a.	Product data, including third-party certified acoustical data and proposed graphic/drawing layout for this project.
				b.	Project references: Minimum of 5 installations not less than 3 years old, of comparable size, scope and complexity of this project, complete with owner contact information.
				c.	Sample warranty.
			2.	Submit substitution request not less than required days prior to bid date.
			3.	Approval shall be indicated by issuance of written Addendum.
			4.	Approved manufacturers shall meet separate requirements of Submittals Article.
			5.	Manufacturers’ products that are either listed as pre-approved in these Specifications or who have been granted approval as an alternate must still demonstrate all of the material performance and operational characteristics required by this Section.
	** NOTE TO SPECIFIER ** Delete if rigging systems not required.
		D.	Rigging Systems, Requirements for Approval: Other equipment manufacturers seeking approval shall submit the following information at least 2 weeks prior to the bid opening date. Approval of manufacturers shall be by addenda. Failure to submit any of the required information shall automatically disqualify the manufacturers from consideration of approval.
			1.	Evidence that the manufacturer has been in business for a minimum of ten years manufacturing stage equipment.
			2.	A listing of 10 equivalent installations, including:
				a.	Name, address and telephone number of owner.
				b.	Name, address and telephone number of architect.
				c.	Scope of work.
			3.	A brief written description of the manufacturer's operation including facilities, financial capabilities, and experience of key personnel.
			4.	Written, third party evidence showing that the manufacturer has the testing, quality management and insurance programs required above in place.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.2	INTEGRATED SOUND CONTROL DOOR ASSEMBLIES
		A.	Basis of Design: Sound Control Door Assemblies as manufactured by Wenger Corporation.
		B.	Performance Requirements: Provide sound-control door assemblies identical to assemblies tested by an independent testing agency per ASTM E 90 with the specified minimum certified STC rating per ASTM E 413 for the configurations indicated.
			1.	Acoustical performance shall meet manufacturer's published data for transmission loss based on door type specified.
	** NOTE TO SPECIFIER ** Retain paragraph and subparagraph below when sound-control door assemblies are located in a fire-resistance-rated wall or partition. Delete if not required.
		C.	Compliance for Fire-Rated Sound-Control Door and Frame Assemblies:
	** NOTE TO SPECIFIER ** Verify testing requirements of authorities having jurisdiction. The force required to compress acoustic gaskets enough for the door to latch may require a spring-type closer. Consult manufacturer and requirements of authorities having jurisdiction.
			1.	NFPA 80 compliant, listed and labeled by a testing and inspection agency acceptable to authorities having jurisdiction.
			2.	Test at equalized pressure per UL 10C.
	** NOTE TO SPECIFIER ** Paragraph below is not optional if doors being specified have glazing. Delete if not required.
		D.	Safety Glass Compliance: Products must comply with testing requirements in 16 CFR 1201 for Category II materials.
	** NOTE TO SPECIFIER ** Edit accessibility requirements paragraph below to meet project requirements. Note that sound gasketing and threshold design required to achieve acoustical performance may require opening and closing forces in excess of that allowed under accessibility requirements. Consult manufacturer and requirements of authorities having jurisdiction.
		E.	Compliance with Accessibility Requirements:
	** NOTE TO SPECIFIER ** Delete compliance standards listed below not required for project.
			1.	Americans with Disabilities Act/Architectural Barriers Act (ADA/ABA).
			2.	Accessibility Guidelines for Buildings and Facilities (ADAAG).
			3.	ANSI A117.1.
			4.	FED-STD-795 Uniform Federal Accessibility Standards.
	** NOTE TO SPECIFIER ** Delete paragraphs and subparagraphs below not required for project. If multiple Door Types scheduled on Drawings, delete first two paragraphs below and select from paragraph that include SCD# and references to schedule and Drawings.
		F.	Non-Fire Rated Doors:
			1.	Door Type: 3070 Solid Door.
				a.	Sound Transmission Control Rating: STC 50.
				b.	Nominal Width: 3 feet.
			2.	Door Type: 3070 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: STC 50.
				b.	Nominal Width: 3 feet.
			3.	Door Type: 3070 Solid Door with 660 sq in (4258 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 3 feet.
			4.	Door Type: 3070 Solid Door with 1296 sq in (8361 sq cm) window.
				a.	Sound Transmission Control Rating: STC 51.
				b.	Nominal Width: 3 feet.
			5.	Door Type: 3570 Solid Door.
				a.	Sound Transmission Control Rating: STC 52.
				b.	Nominal Width: 3.5 feet.
			6.	Door Type: 3570 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: STC 52.
				b.	Nominal Width: 3.5 feet.
			7.	Door Type: 3570 Solid Door with 660 sq in (4258 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 3.5 feet.
			8.	Door Type: 3570 Solid Door with 1296 sq in (8361 sq cm) window.
				a.	Sound Transmission Control Rating: STC 52.
				b.	Nominal Width: 3.5 feet.
			9.	Door Type: 4070 Solid Door.
				a.	Sound Transmission Control Rating: STC 53.
				b.	Nominal Width: 4 feet.
			10.	Door Type: 4070 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: STC 54.
				b.	Nominal Width: 4 feet.
			11.	Door Type: 4070 Solid Door with 660 sq in (4258 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 4 feet.
			12.	Door Type: 4070 Solid Door with 1296 sq in (8361 sq cm) window.
				a.	Sound Transmission Control Rating: STC 53.
				b.	Nominal Width: 4 feet.
			13.	Door Type: 6070 Solid Door.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 6 feet.
			14.	Door Type: 6070 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 6 feet.
			15.	Door Type: 6070 Solid Door with 660 sq in (4258 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 6 feet.
			16.	Door Type: 6070 Solid Door with 1296 sq in (8361 sq cm) window.
				a.	Sound Transmission Control Rating: 51.
				b.	Nominal Width: 6 feet.
		G.	Fire Rated Doors: 1 Hour rating.
			1.	Door Type: 3070 Solid Door.
				a.	Sound Transmission Control Rating: STC 49.
				b.	Nominal Width: 3 feet.
			2.	Door Type: 3070 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: STC 48.
				b.	Nominal Width: 3 feet.
			3.	Door Type: 3070 Solid Door with 660 sq in (4258 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 3 feet.
			4.	Door Type: 3570 Solid Door.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 3.5 feet.
			5.	Door Type: 3570 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 3.5 feet.
			6.	Door Type: 4070 Solid Door.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 4 feet.
			7.	Door Type: 4070 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 4 feet.
			8.	Door Type: 6070 Solid Door.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 6 feet.
			9.	Door Type: 6070 Solid Door with 99 sq in (639 sq cm) window.
				a.	Sound Transmission Control Rating: Not rated.
				b.	Nominal Width: 6 feet.
		H.	Sound-Control Door Assemblies: Provide sound-control door assemblies consisting of acoustically engineered door and frame combination with engineered sound seals.
	** NOTE TO SPECIFIER ** Retain subparagraph below only when information for sound-control door assemblies is shown in schedule on Drawings. Modify ' SCD' designation and/or fill in the blank below with door designation as required for project. Delete if not required.
			1.	Designation in schedule on Drawings: SCD# ___.
	** NOTE TO SPECIFIER ** If a specific Door Type is selected from the list above, delete corresponding attributes below to avoid redundancy (Glazing Lite Size, Fire Rating). Delete options for Door Configurations not required.
			2.	Door Configuration: Single leaf.
			3.	Door Configuration: Double leaf.
			4.	Door Configuration: As scheduled on Drawings.
	** NOTE TO SPECIFIER ** Delete options for Door Leaf Sizes not required.
			5.	Door Leaf Size: 36 inch (91 mm).
			6.	Door Leaf Size: 42 inch (107 mm).
			7.	Door Leaf Size: 48 inch (122 mm).
			8.	Door Leaf Size: As scheduled on Drawings.
	** NOTE TO SPECIFIER ** Delete options for Glazing Lite Sizes not required.
			9.	Glazing Lite Size, per Door: None.
			10.	Glazing Lite Size, per Door: 99 sq in (639 sq cm).
			11.	Glazing Lite Size, per Door: 660 sq in (4258 sq cm).
			12.	Glazing Lite Size, per Door: 1296 sq in (8361 sq cm).
			13.	Glazing Lite Size, per Door: As scheduled on Drawings.
	** NOTE TO SPECIFIER ** Delete options for Fire Rating not required.
			14.	Fire Rating: None.
			15.	Fire Rating: 60 minutes.
			16.	Fire Rating: As scheduled on Drawings.
	** NOTE TO SPECIFIER ** Fill in the blank below with STC rating , or delete the line as required for project. Delete options for Assembly Sound Transmission Class not required.
			17.	Assembly Sound Transmission Class (STC): ___.
			18.	Assembly Sound Transmission Class (STC): Not rated.
			19.	Assembly Sound Transmission Class (STC): As scheduled on Drawings.
	** NOTE TO SPECIFIER ** Edit requirements for STC and transmission loss below based on Wenger product data for door size, configuration, and glazing selected above. For multiple doors with different characteristics, copy and paste multiples of this paragraph and subparagraphs and edit, or schedule information on drawings. Delete below for assemblies where STC is not specified.
		I.	General: Provide flush-type steel sound-control doors minimum 2-1/2 inch (64 mm) thick, with split, crimped, and gasketed isolation construction with harmonically unbalanced steel face thicknesses and window lite thicknesses. Fabricate without visible seams on exposed faces.
	** NOTE TO SPECIFIER ** Delete options for door cores not required.
			1.	Door Cores: Manufacturer's standard meeting specified STC rating.
			2.	Door Cores: Manufacturer's standard meeting specified STC and fire rating.
			3.	Door Cores: Manufacturer's standard meeting requirements for STC and fire rating as scheduled on Drawings.
			4.	Door Face Sheets: 14 gauge/0.067 inch (1.7 mm) and 12 gauge/0.093 inch (2.3 mm) cold-rolled steel sheet, on opposing faces.
		J.	Door Hardware Reinforcement: Minimum 14 gauge (0.067 inch) (1.7 mm), hot-rolled or cold-rolled steel sheet as reinforcement for hinges, lock face, flush bolts, closers, and concealed holders.
		K.	Acoustic Vision Lite Assembly: Metal-framed unit consisting of harmonic vibration-resistant 1/4 inch (6.0 mm) and 3/8 inch (9.0 mm) thick laminated glazing with 2.81 inch (71 mm) interspace.
	** NOTE TO SPECIFIER ** Wenger's unique split frames can be ordered to accommodate wall/partition thicknesses from 4-1/2 inches (114.3 mm) to 12-1/2 inches (317.5 mm), speeding installation by eliminating field modifications that can alter acoustical performance.
		L.	Frame Fabrication:
			1.	Materials: 14 gauge/0.067 inch (1.7 mm) cold-rolled steel sheet.
			2.	Construction: Full-welded unit.
			3.	Corners: Mitered and reinforced.
			4.	Frame Design: Split frame design with integrated frame support for metal threshold.
			5.	Frame Acoustic Liner, Non-Fire-Rated Doors: Factory-installed sound-absorbing material behind acoustic seal rabbet.
		M.	Frame Hardware Reinforcement: Minimum 14 gauge/0.067 inch (1.7 mm) reinforcement for hinges, lock face, and closers.
		N.	Door Hardware: Provide manufacturer's standard acoustical seals, threshold, and hinges required to achieve sound control performance requirements specified.
		O.	Acoustical Seals:
	** NOTE TO SPECIFIER ** Delete options for fire-rated or non-rated heads and jambs if not required.
			1.	Head and Jambs, Non-Fire-Rated Doors: Extruded flexible vinyl with dual magnetic seals, uninterrupted at hinge and latch.
			2.	Head and Jambs, Fire Rated Doors: Silicone compression seal, uninterrupted at hinge and latch, with intumescent material in jamb meeting requirements of fire-resistance assembly specified in Quality Assurance Article.
			3.	Door Bottoms: Fixed in place foam and fiberglass-backed, teflon-coated sweep seal, field-adjustable, providing sound control seal without mechanical drop operation.
		P.	Hinges: Cam-lift wrap-around continuous barrel-type hinge.
		Q.	Metal Thresholds: Flat, smooth plate stainless steel, 5/16 inch (7.9 mm) high, profiled to provide sound control seal with door bottom seal.
	** NOTE TO SPECIFIER ** Delete paragraphs, and associated subparagraphs as applicable, for Locksets not required.
		R.	Locksets: Provide door manufacturer's standard mortise lockset.
		S.	Locksets: Provide door with standard mortise pocket prepared to receive mortise lockset specified in another Division 08 section and frame prepared to receive standard strike plate, with door edge and frame cover plates included.
		T.	Other Door Hardware: Refer to requirements of Section 08 71 53 - Security Door Hardware.
		U.	Fasteners: Refer to Section 06 10 00 - Rough Carpentry.
		V.	General Fabrication:
			1.	Fabricate sound-control door assemblies to same tolerances as tested units meeting performance requirements.
			2.	Form surfaces smooth and flush with invisible joints when doors are closed.
			3.	Factory-assemble doors, frames, manufacturer-provided hardware, and glazed lites.
		W.	Door Fabrication:
			1.	Form metal doors to required sizes with minimum radius.
			2.	Join door faces at vertical edges by welding or crimping method identical to manufacturer's tested units.
		X.	Frame Fabrication:
			1.	Form metal frames to required sizes with minimum radius.
			2.	Weld joints continuously.
			3.	Make joints smooth, flush, and invisible.
			4.	Provide plaster guards where required to contain grout or mortar.
		Y.	Hardware Preparation: In compliance with ANSI A115.1.
			1.	Factory-prepare assemblies to received hardware.
			2.	Prepare for hardware mounting as recommended by manufacturer in accordance with manufacturer's acoustically tested assemblies.
		Z.	Primer: Factory primed for field-applied painted finish.
			1.	Type: Manufacturer's standard, lead- and chromate-free primer.
			2.	Compliance: ANSI A250.10.
			3.	Thickness: Minimum 0.7 mils (0.018 mm) thick.
	** NOTE TO SPECIFIER ** Wenger tunable panels are specifically determined for appropriate quantities and location for each music rehearsal or performance space. They are typically required to allow musicians and directors to hear all ensemble parts while protecting against echoes, flutters, and unsafe sound energy levels. Delete if not required.
	2.3	TRADITIONAL ACOUSTIC PANEL SERIES
		A.	Basis of Design: Provide a system of acoustical panels, as manufactured by Wenger Corporation, that absorb or diffuse sound in a configuration designed to reduce excess sound energy levels and improve sound distribution throughout the space.
		B.	Performance Requirements: Provide sound absorbing and sound-diffusing panels meeting requirements with the following characteristics:
			1.	Wall Panel Mounting Types for Acoustical Performance Characteristics according to ASTM E 795, with measurements determined according to ASTM C 423:
				a.	No air space.
			2.	Ceiling Diffuser Panel Mounting Types for Acoustical Performance Characteristics according to ASTM E 795, with measurements determined according to ASTM C 423:
				a.	No air space.
				b.	E-150: 6 inches (152 mm) air space.
				c.	E-400: 16 inches (410 mm) air space.
		C.	Wall and Ceiling Absorber Panels: Manufacturer's standard panel, with fabric covering laminated to front face of rigid glass-fiber board, with chemically hardened edges, with the following characteristics:
			1.	Basis of Design Product: Wenger Wall Absorber Panel and Ceiling Absorber Panel.
			2.	Absorber Panel Size: Width and length indicated on the Drawings.
	** NOTE TO SPECIFIER ** Delete thicknesses not required.
				a.	Thickness: 2 inches (51 mm).
				b.	Thickness: 3 inches (76 mm).
				c.	Thickness: 4 inches (102 mm).
			3.	Fabric Covering: Manufacturer's standard, color and pattern as selected.
			4.	Wall Panel Mounting Method: Metal wall bracket with panel-mounted z-bracket.
			5.	Ceiling Panel Mounting Method:
	** NOTE TO SPECIFIER ** Delete mounting method not required. Note that manufacturer does not offer a lay-in method of mounting.
				a.	Direct mount with brackets attached to panel back.
				b.	Wire suspension from brackets attached to panel back.
	** NOTE TO SPECIFIER ** Delete if 2 inch thickness not required.
			6.	Acoustical Performance, 2 inches (51 mm) thick, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A:
				a.	125Hz = 0.50.
				b.	250Hz = 0.96.
				c.	500Hz = 1.27.
				d.	1000Hz = 1.27.
				e.	2000Hz = 1.23.
				f.	4000Hz = 1.18.
	** NOTE TO SPECIFIER ** Delete if 3 inch thickness not required.
			7.	Acoustical Performance, 3 inches (76 mm) thick, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A:
				a.	125Hz = 0.65.
				b.	250Hz = 1.10.
				c.	500Hz = 1.31.
				d.	1000Hz = 1.23.
				e.	2000Hz = 1.20.
				f.	4000Hz = 1.09.
	** NOTE TO SPECIFIER ** Delete if 4 inch thickness not required.
			8.	Acoustical Performance, 4 inches (102 mm) thick, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A:
				a.	125Hz = 0.84.
				b.	250Hz = 1.17.
				c.	500Hz = 1.34.
				d.	1000Hz = 1.32.
				e.	2000Hz = 1.25.
				f.	4000Hz = 1.20.
		D.	Convex Wall Diffuser Panels: Acoustically-configured, polycylindrical convex molded thermoplastic panel, 0.125 inch (3 mm) thick, width and length indicated, and with the following characteristics:
			1.	Basis of Design Product: Wenger Type I Convex Wall Diffuser.
			2.	Fabric Covering: Manufacturer's standard, color and pattern as selected.
			3.	Wall Panel Mounting Method: Metal wall bracket with panel-mounted z-bracket.
			4.	Sound Transmission Class (STC): ASTM E 90 and ASTM E 413: 23.
			5.	Acoustical Performance, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A.
				a.	125Hz = 0.18.
				b.	250Hz = 0.18.
				c.	500Hz = 0.13.
				d.	1000Hz = 0.10.
				e.	2000Hz = 0.12.
				f.	4000Hz = 0.16.
		E.	Convex Ceiling Diffuser Panels: Acoustically-configured, polycylindrical convex molded thermoplastic panel, 0.125 inch (3 mm) thick, and width and length indicated.
			1.	Basis of Design Product: Wenger Convex Ceiling Diffuser Panels.
			2.	Finish: Manufacturer's standard textured white.
			3.	Ceiling Panel Mounting Method:
	** NOTE TO SPECIFIER ** Delete mounting method not required.
				a.	Direct mount with brackets attached to panel back.
				b.	Wire suspension from brackets attached to panel back .
				c.	Lay-in ceiling grid clip. All lay-in ceiling panels include safety cable attachment to permanent ceiling grid in all four corners of ceiling panel.
			4.	Acoustical Performance, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A.
				a.	125Hz = 0.20.
				b.	250Hz = 0.11.
				c.	500Hz = 0.17.
				d.	1000Hz = 0.04.
				e.	2000Hz = 0.09.
				f.	4000Hz = 0.21.
		F.	Convex Wall Diffuser/Absorber Panels: Acoustically-configured, selectively sound-absorptive polycylindrical convex molded thermoplastic panel, 0.125 inch (3 mm) thick, width and length indicated, with sound attenuation board adhered to internal surface of panel.
			1.	Basis of Design Product: Wenger Type II Convex Wall Diffuser Panels.
			2.	Fabric Covering: Manufacturer's standard, color and pattern as selected.
			3.	Wall Panel Mounting Method: Metal wall bracket with panel-mounted grooved button.
			4.	Sound Transmission Class (STC): ASTM E 90 and ASTM E 413: 23.
			5.	Acoustical Performance, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A.
				a.	125Hz = 0.34.
				b.	250Hz = 0.27.
				c.	500Hz = 0.14.
				d.	1000Hz = 0.11.
				e.	2000Hz = 0.11.
				f.	4000Hz = 0.19.
		G.	Pyramidal Ceiling Diffuser Panels: Acoustically-configured, offset pyramidal molded thermoplastic impact-resistant panel 0.125 inch (3 mm) thick, length and width indicated.
			1.	Basis of Design Product: Wenger Pyramidal Ceiling Diffuser.
			2.	Finish: Manufacturer's standard textured white.
			3.	Ceiling Panel Mounting Method:
				a.	Wire suspension from back-mounted brackets
				b.	Lay-in ceiling grid clip. All lay-in ceiling panels include safety cable attachment to permanent ceiling grid in all four corners of panel.
			4.	Acoustical Performance, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 48 inches (1219 by 1219 mm) unit, Mounting Type A.
				a.	125Hz = 0.27.
				b.	250Hz = 0.18.
				c.	500Hz = 0.09.
				d.	1000Hz = 0.06.
				e.	2000Hz = 0.03.
				f.	4000Hz = 0.00.
		H.	Quadratic Ceiling Diffuser Panel: Acoustically diffusing panel designed in accordance with quadratic theory with multiple wells of engineered depth in a molded thermoplastic panel, 48 by 48 inches (1219 by 1219 mm) by 0.125 inch (3 mm) thick.
			1.	Basis of Design Product: Wenger Quadratic Ceiling Diffuser.
			2.	Finish: Manufacturer's standard white.
			3.	Ceiling Panel Mounting Method: Lay-in ceiling grid. All panels include safety cable attachment to permanent ceiling grid in all four corners of panel.
			4.	Unit Weight: 35 lb (16 kg).
			5.	Acoustical Performance, Sound Absorption Coefficients, One-third Octave Band Center Frequency, Hz, for 48 by 96 inches (1219 by 2440 mm) unit, Mounting Type E-400.
				a.	125Hz = 0.36.
				b.	250Hz = 0.54.
				c.	500Hz = 0.59.
				d.	1000Hz = 0.43.
				e.	2000Hz = 0.24.
				f.	4000Hz = 0.19.
		I.	Fabric Facing Material: 100 percent woven plain weave polyester 2-ply, with the following characteristics:
			1.	Light Fastness: AATCC 16, Option 3: 40 hours.
			2.	Fastness to Crocking: AATCC 8: #4 Wet and Dry.
			3.	Flammability: ASTM E 84, Class A or 1.
			4.	Basis of design product: Guilford of Maine, FR-701.
		J.	Airborne Noise Reduction: Provide acoustical panels in layout designed by computer simulation based on Fitzroy formulas to provide the following sound reduction:
			1.	Band Rehearsal: _____ dB +/- 0.5dB.
			2.	Orchestra Rehearsal: _____ dB +/- 0.5dB.
			3.	Choral Rehearsal: _____ dB +/- 0.5dB.
		K.	Reverberation Time: Provide acoustical panels in layout designed by computer simulation based on Fitzroy formulas to provide the following reverberation times and amount of variability available in each room:
			1.	Band Rehearsal: _____ +/- 0.2 seconds. Degree of change: _____ seconds.
			2.	Orchestra Rehearsal: _____> +/- 0.2 seconds. Degree of change: _____ seconds.
			3.	Choral Rehearsal: _____ +/- 0.2 seconds. Degree of change: _____ seconds.
		L.	Fire-rating: The fully assembled product, as installed, shall meet Class A fire protection. Test results for flame spread and smoke developed shall be provided upon request. Individual component level fire test data is not sufficient to meet Class A fire protection requirements and shall not be accepted.
	** NOTE TO SPECIFIER ** Wenger Tunable Wall Panels are designed to adjust the amount of absorption and/or diffusion in a room, which affects the reverberation time and loudness of a room in order for the space to be used for both choral and instrumental rehearsal or performance. Delete if not required.
	2.4	DYNAMIC ACOUSTIC PANEL SERIES
		A.	Basis of Design: Provide a system of acoustical panels, as manufactured by Wenger Corporation, that absorb or diffuse sound in a configuration designed to increase or decrease the reverberation time up to .5 seconds at any time within the room.
			1.	Panel Size: 4 feet x 4 feet (1219 mm x 1219 mm) and 4 feet x 8 feet (1219 mm x 2438 mm) as applicable; both sizes 12 inches (305 mm) deep.
			2.	Fabric Covering: Manufacturer's standard, color and pattern as selected.
			3.	Wall Panel Mounting Method: Metal wall bracket.
			4.	Acoustical Performance: In compliance with manufacturer's published documentation for sound absorption.
		B.	Fabric Facing Material: 100 percent woven plain weave polyester 2-ply, with the following characteristics:
			1.	Light Fastness: AATCC 16, Option 3: 40 hours.
			2.	Fastness to Crocking: AATCC 8: #4 Wet and Dry.
			3.	Flammability: ASTM E 84, Class A or 1.
			4.	Basis of design product: Guilford of Maine, Anchorage Series.
		C.	Face Panel: Curved aluminum micro-perf sheet, containing absorptive and diffusive qualities.
		D.	Panel End Caps: Top and bottom end caps constructed of 3/4 inch (19 mm) thick laminated composite board with 1/8 inch (3 mm) edge banding.
	** NOTE TO SPECIFIER ** Delete if not required.
			1.	Woodgrain finish as scheduled or indicated. Refer to Drawings.
		E.	Internal Adjustment: Absorber/Diffuser panel includes integrated steel actuator device which allows the panel to be changed to an absorber or diffuser by the use of an external handle.
		F.	Side Frames: Integrated, radiused aluminum extrusions.
		G.	Wall Brackets: Painted steel rail with holes to attach to wall studs, or mount to wall.
	** NOTE TO SPECIFIER ** Add requirements for engineered seismic attachment of acoustical banners if required for Project. Delete if not required.
	2.5	MOTORIZED ACOUSTICAL BANNERS
		A.	Basis of Design: Sound absorbing acoustical banner units, as manufactured by Wenger Corporation. comprised of housing, fabric banner, ball bearing rollers, motor, controls, mounting accessories, and other components necessary for a complete installation. Provide units meeting performance requirements and requirements listed and labeled as an assembly by UL or another testing and inspecting agency acceptable to Authorities Having Jurisdiction.
	** NOTE TO SPECIFIER ** Retain and edit below for projects where noise reduction and reverberation time for each listed space have been engineered to accompany a design layout of acoustic banners. Copy and repeat subparagraphs below for each additional space receiving acoustic banners. Consult Wenger representative for assistance in establishing appropriate performance requirements for each space as well as proper instrumentation requirements for measurement.
		B.	Airborne Noise Reduction: Provide acoustical banners in layout designed by computer simulation based on Fitzroy formulas to provide the following sound reduction:
			1.	Auditorium: _____ dB +/- 0.5dB.
		C.	Reverberation Time: Provide acoustical absorber and diffuser panels in layout designed by computer simulation based on Fitzroy formulas to provide the following reverberation times:
			1.	Auditorium: _____ +/- 0.2 seconds.
	** NOTE TO SPECIFIER ** Delete if type not required.
		D.	Acoustical Performance, Synthetic Velour Double Layer, Sound Absorption Coefficient, ASTM C 423, one-third Octave Band Center Frequency: For banners of the following construction, spaced 9.5 inches (241 mm) from wall, with 3 inches (76 mm) between banner layers.
			1.	200 Hz = 0.35.
			2.	250 Hz = 0.59.
			3.	500 Hz = 0.70.
			4.	1000 Hz = 0.87.
			5.	2000 Hz = 0.80.
			6.	4000 Hz = 0.80.
	** NOTE TO SPECIFIER ** Delete if type not required.
		E.	Acoustical Performance, Wool Serge Double Layer, Sound Absorption Coefficient, ASTM C 423, one-third Octave Band Center Frequency: For banners of the following construction, spaced 9.5 inches (241 mm) from wall, with 3 inches (76 mm) between banner layers.
			1.	200 Hz = 0.40.
			2.	250 Hz = 0.59.
			3.	500 Hz = 0.69.
			4.	1000 Hz = 0.87.
			5.	2000 Hz = 0.84.
			6.	4000 Hz = 0.84.
		F.	Flame Resistance: Provide fabric components complying with NFPA 701.
		G.	Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency.
	** NOTE TO SPECIFIER ** Wenger Acoustical Banners are designed to tailor the reverberation and loudness of a room. Acoustical banners are engineered to absorb sound across a broader frequency range. Standard (60 inches) width and custom widths up to 10 feet are available. Indicate banner sizes and locations on Drawings.
		H.	Sound-Absorbing Acoustical Banners: Acoustical double-layer fabric banners with adjustable layer spacing and adjustable wall spacing, with motorized deployment and retraction, concealed when retracted within wall-mounted housing. Provide means of securing fabric allowing fabric to be easily removed for maintenance.
			1.	Product: Wenger Corporation, Motorized Acoustical Banners.
			2.	Banner Size: Size indicated on Drawings.
	** NOTE TO SPECIFIER ** Retain selected fabric option in "Banner Acoustical Fabric" and corresponding fabric description paragraphs below. Coordinate with corresponding coefficient in "Sound Absorption Coefficient" paragraph in Performance Requirements paragraph. If more than one fabric type or fabric color is required, note or schedule locations on Drawings.
			3.	Banner Acoustical Fabric: Synthetic velour front and back layer.
			4.	Banner Acoustical Fabric: Wool serge front and back layer.
		I.	Fabric Material:
			1.	Synthetic Velour: 22 oz. (746 g/sq. m) medium weight polyester synthetic velour, inherently flame retardant, wrinkle-resistant and moisture resistant, in double layer.
			2.	Wool Serge: 30 oz. /sq. yd. (1017 g/sq. m) matte finish, no nap direction, inherently flame retardant, in double layer.
	** NOTE TO SPECIFIER ** Delete color/pattern not required.
			3.	Colors/Patterns: As indicated on Drawings.
			4.	Colors/Patterns: As selected by Architect from manufacturer's full line.
			5.	Colors/Patterns: Specifier insert color selection.
		J.	Housing: Manufacturer's standard enclosure consisting of aluminum extrusion frame with wood infill panels.
	** NOTE TO SPECIFIER ** Retain " Housing Closures and End Caps" paragraph below for exposed housing installations and select appropriate option.
			1.	Housing Closures and End Caps: Laminated wood as selected by Architect from manufacturer's standard veneers and stains.
			2.	Housing Closures and End Caps: Insert housing finish description.
	** NOTE TO SPECIFIER ** Delete mounting not required.
			3.	Mounting: Exposed wall-mounted.
			4.	Mounting: Exposed ceiling-mounted.
			5.	Mounting: Above ceiling-mounted.
		K.	Operator and Controls:
			1.	Motor in Roller: Instant-reversing asynchronous motor of size and capacity recommended by acoustical banner manufacturer; with integrated motor controls, brakes, and encoders, permanently lubricated ball bearings, thermal-overload protection, limit switches, and positive-stop action.
			2.	Power Supply: 120VAC/60 Hz.
	** NOTE TO SPECIFIER ** Retain option in "Controls" paragraph below if Owner requests ability to modify acoustical banner limit settings.
			3.	Controls: Provide control system utilizing main bus consisting of RS485 conductors using CAT 5 cabling, power insertion box and interface, and control switches. Provide manufacturer's address reader and limit setting tool.
	** NOTE TO SPECIFIER ** Retain and edit control description as required by Project. Coordinate with electrical drawings. Three-button control switch below is standard from Wenger. Other control options are not supplied by Wenger; consult with Wenger for recommendations.
				a.	Control Switch: Remote up/down/stop control switch installed in recessed device box with cover plate. Provide number of control switches indicated for each banner or banner group.
	** NOTE TO SPECIFIER ** Delete number of optional presets not required.
				b.	Provide multiple pre-set control switch with three to five preset positions.
				c.	Provide multiple pre-set control switch with five to eight preset positions.
	** NOTE TO SPECIFIER ** Delete if not required.
				d.	Integrated Control System: Provide interface with integrated control system scheduled and as indicated.
		L.	Fasteners and Brackets: Manufacturer's standard mounting hardware for wall mount, ceiling mount, and overhead strut suspension mount as scheduled or indicated.
		M.	Fabrication:
			1.	Provide factory-assembled units ready for installation, shipped with banners installed and ready to deploy.
			2.	Seams: Where width of banner indicated exceeds maximum width produced without seams in material specified, provide banner with horizontal seam placed in location indicated on approved shop drawings.
	** NOTE TO SPECIFIER ** Below describes standard Wenger Diva acoustical cloud panels. Select panel face. Edit to meet job requirements. Wenger also provides complete custom design and fabrication of panels, including custom sizes and radii, acoustical densities and performance, custom accents, inlays, and faux finishes. Consult Wenger representative. Delete if not required.
	2.6	ACOUSTICAL CLOUDS
		A.	Basis of Design: DIVA Acoustical Clouds as manufactured by Wenger Corporation.
	** NOTE TO SPECIFIER ** STC performance of the acoustical panel used in acoustical cloud is a measurement of the efficiency of sound reflection provided by the acoustical cloud. Value below indicates the performance of the Wenger Diva panel.
		B.	Acoustical Panel Sound Transmission: Provide third party test results indicating acoustical shell system comprised of acoustical shell panels have the following sound transmission requirements:
			1.	Sound Transmission Class (STC): Minimum 21 per ASTM E 413.
		C.	Materials:
			1.	Aluminum Extruded Bars, Profiles, and Tubes: ASTM B 221 (ASTM B 221M), 6063T alloy.
			2.	Steel Tube: ASTM A 501, hot formed steel tubing.
			3.	Cold-Rolled Steel Sheet: ASTM A 1008/A 1008M, commercial steel, Type B.
			4.	Veneer-Faced Panel Products (MDF core): Meets all CARB-2 requirements for formaldehyde emissions.
			5.	Hardboard: AHA A135.4, Class 1 Tempered - formaldehyde free.
			6.	High-Pressure Decorative Laminate: NEMA LD 3, Grade VGS.
				a.	HPDL with urea formaldehyde-free adhesive.
	** NOTE TO SPECIFIER ** Delete if not required.
		D.	Acoustical Cloud Panels: Manufacturer's standard stressed-skin composite acoustical cloud panels, with STC meeting performance requirements, designed to mix and blend sound and reflect a maximum range of audible frequencies to audience.
			1.	Core: 1-1/2 inches thick (38 mm) honeycomb core material shall have an open geometric pattern with cell walls vertical to panel skins and defined by alternating straight and sine wave layers. Height of sine wave shall be 1/2 inch, wall thickness shall correspond to 60 lb kraft. Bonding of core material to panel faces shall be with permanently cured urethane adhesive. Foam core materials and contact adhesives shall not be permitted.
	** NOTE TO SPECIFIER ** Delete face finishes not required.
			2.	Face, Wood Veneer-Faced Panel: 1/4 inch (6 mm) thick hardwood plywood-faced medium density fiberboard stressed skin, material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 22.
			3.	Face, Wilsonart High Pressure Plastic Laminate-Faced Panel: Material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 21.
			4.	Face, Sherwin Williams Kem Aqua Painted Panel: 3/16 inch (4.8 mm) thick hardboard stressed skin, material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 22.
			5.	Back: 3/16 inch (4.8 mm) thick hardboard stressed skin, painted black.
			6.	Panel Edge Frame: Straight panel edges are reinforced with extruded aluminum edge frame.
			7.	Acclimate panel face and back materials in a temperature and humidity controlled environment for a minimum of 72 continuous hours so that they reach appropriate equilibrate condition prior to lamination to improve dimensional stability of finished laminated panels.
				a.	Documentation of specified process must be available for review.
	** NOTE TO SPECIFIER ** Delete if not required.
		E.	Overhead Sound Reflecting Acoustical Cloud: Acoustical cloud panels suspended directly from overhead supports.
	** NOTE TO SPECIFIER ** Delete radius not required.
			1.	Cloud Panel Radius: 5 foot (1.52 m).
			2.	Cloud Panel Radius: 10 foot (3.05 m).
			3.	Cloud Panel Radius: 20 foot (6.09 m).
			4.	Cloud Panel Radius: As indicated.
			5.	Cloud Panel Size and Configuration: As indicated.
			6.	Cloud Panel Face Finish:
				a.	Hardwood Plywood Veneer: Plain sliced, slip-matched and balance matched to maintain a uniform leaf width across the full width of the panel.
					1)	Veneer must be a minimum of 80+ or 85+ grade. Grade A veneer, or veneer of a lesser grade, is not acceptable.
					2)	Sort veneer by grain density, grain structure, and color.
					3)	Clip around character marks to minimize pin knots, mineral, gum, sap, and color variation.
					4)	Individually clip and hand splice each veneer leaf with the grain cathedrals centered in the middle of each leaf. Veneer leaves with grain cathedrals not centered shall be rejected as unacceptable for the Work of this Section.
	** NOTE TO SPECIFIER ** Delete species not required.
					5)	Species: White oak.
					6)	Species: Red oak.
					7)	Species: White birch.
					8)	Species: Maple.
					9)	Species: Cherry.
				b.	Wood Finish: Transparent finish, stain color as selected by Architect
				c.	Wilsonart High Pressure Plastic Laminate: Color as selected by Architect.
				d.	Sherwin Williams Kem Aqua Painted Hardboard: Color as selected by Architect.
		F.	Cloud Suspension: Shackle from each of four corners to overhead supports.
		G.	Miscellaneous Supports: Battens, channels, and other miscellaneous supports are part of the work of Division 05 Section "Metal Fabrications."
	** NOTE TO SPECIFIER ** Retain above and coordinate requirements below. Suspension items for auditorium clouds are supplied by Wenger. Batten supports above are specified in other sections.
		H.	Acoustical Cloud Installation Accessories:
			1.	Shackles: Rated screw pin shackles.
		I.	Finishes:
			1.	Aluminum Framing: Painted.
			2.	Painted Finish for Acoustical Cloud Panel: Sherwin Williams Kem Aqua Paint.
			3.	Transparent Wood Finish for Acoustical Cloud Panel Face: Manufacturer's standard, comparable to AWI custom grade acrylic lacquer.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.7	ACOUSTICAL SHELLS (DIVA)
		A.	Basis of Design: DIVA Acoustical Shells as manufactured by Wenger Corporation. Full stage acoustical shell system consisting of mobile acoustical shell towers and adjustable acoustical shell ceiling.
		B.	Materials:
			1.	Aluminum Extruded Bars, Profiles, and Tubes: ASTM B 221 (ASTM B 221M), 6063T alloy.
			2.	Steel Tube: ASTM A 501, hot formed steel tubing.
			3.	Cold-Rolled Steel Sheet: ASTM A 1008/A 1008M, commercial steel, Type B.
			4.	Veneer-Faced Panel Products (MDF core): Meets all CARB-2 requirements for formaldehyde emissions.
			5.	Hardboard: AHA A135.4, Class 1 Tempered - formaldehyde free.
			6.	High-Pressure Decorative Laminate: NEMA LD 3, Grade VGS.
				a.	HPDL with urea formaldehyde-free adhesive.
	** NOTE TO SPECIFIER ** STC performance of the acoustical panel used in acoustical shell system is a measurement of the efficiency of sound reflection provided by the acoustical shell. Value below indicates the performance of the Wenger Diva panel.
		C.	Acoustical Panel Sound Transmission: Provide third party test results indicating acoustical shell system comprised of acoustical shell panels have the following sound transmission requirements:
			1.	Sound Transmission Class (STC): Minimum 21 per ASTM E 413.
	** NOTE TO SPECIFIER ** Below describes standard Wenger Diva acoustical shell panels. Select panel face. Edit to meet job requirements. Wenger also provides complete custom design and fabrication of panels, tower, and ceiling system, including custom sizes and radii, acoustical densities and performance, custom accents, inlays, and faux finishes, and multiple storage options. Consult Wenger representative.
		D.	Acoustical Shell Panels, General: Manufacturer's standard stressed-skin composite acoustical shell panels, with a minimum of STC 21 to meet performance requirements, designed to mix and blend sound and reflect a maximum range of audible frequencies to both audience and performers.
			1.	Core; 1-1/2 inches thick (38 mm) honeycomb core material shall have an open geometric pattern with cell walls vertical to panel skins and defined by alternating straight and sine wave layers. Height of sine wave shall be 1/2 inch (12.7mm), wall thickness , not less than 60 lb kraft. Bonding of core material to panel faces shall be with permanently cured urethane adhesive. Foam core materials and contact adhesives shall not be permitted.
	** NOTE TO SPECIFIER **Delete face types not required.
			2.	Face, Wood Veneer-Faced Panel: 1/4 inch (6 mm) thick hardwood plywood-faced medium density fiberboard stressed skin, material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 22.
			3.	Face, Wilsonart High Pressure Plastic Laminate-Faced Panel: Material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 21.
			4.	Face, Sherwin Williams Kem Aqua Painted Panel: 3/16 inch (4.8 mm) thick hardboard stressed skin, material, and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 22.
			5.	Back: 3/16 inch (4.8 mm) thick hardboard stressed skin, painted black.
			6.	Panel Edge Frame: Straight panel edges are reinforced with extruded aluminum edge frame.
			7.	Acclimate panel face and back materials in a temperature and humidity controlled environment for a minimum of 72 continuous hours so that they reach appropriate equilibrate condition prior to lamination to improve dimensional stability of finished laminated panels.
				a.	Documentation of specified process must be available for review.
				b.	Failure to provide documentation of required acclimation process upon request shall result in the rejection of the materials as suitable for the Work of this Section.
		E.	Mobile Acoustical Towers: Free-standing, self-supporting, movable towers for stage back and side walls. Towers consist of acoustical shell panels in rigid, diagonally-braced vertical aluminum frame with formed steel base, with center panel and two hinged wing panels, in nesting configuration minimizing required storage space. Wing panel on tower equipped with latching hardware and stage access door where indicated. Counterweighted tower base with adjustable front leveling pads concealed by removable access panel.
			1.	Tower Size: As indicated on project drawings.
			2.	Tower Height and Width: As indicated on project drawings.
			3.	Tower Panel Face Finish:
				a.	Hardwood Plywood Veneer: Plain sliced, slip-matched and balance matched to maintain a uniform leaf width across the full width of the panel.
					1)	Veneer must be a minimum of 80 grade or greater.
						a)	Grade A veneer, or any other veneer of a lesser grade, shall not be acceptable.
					2)	Sort veneer by grain density, grain structure, and color.
					3)	Clip around character marks to minimize pin knots, mineral, gum, sap, and color variation.
					4)	Individually clip and hand splice each veneer leaf with the grain cathedrals centered in the middle of each leaf. Veneer leaves with grain cathedrals not centered shall be rejected as unacceptable for the Work of this Section.
	** NOTE TO SPECIFIER ** Delete species not required.
					5)	Species: White oak.
					6)	Species: Red oak.
					7)	Species: White birch.
					8)	Species: Maple.
					9)	Species: Cherry.
					10)	Species: Custom, as selected by Architect.
				b.	Wood Veneer Finish: Transparent finish, stain color as selected by Architect.
			4.	Door and Wing Panel Hardware:
				a.	Hinges: extruded from high-strength aluminum with a seamless barrel and integral attachment flange; hinge loads are carried by maintenance free, self-lubricating sintered bronze bearings which pivot on a 1/2 inch (12.7 mm) diameter steel pin that are designed for silent operation and requiring no replacement parts. Metal-on-metal hinges without self-lubricating materials shall not be accepted.
				b.	Slide-lock mechanism, pull handle, and adjustable wing stay.
			5.	Tower Frame:
				a.	Extruded 6063 T6 aluminum alloy vertical tower frames with welded cross tube assemblies.
			6.	Stage Tower Transporter:
	** NOTE TO SPECIFIER **Delete type not required.
				a.	Type: Wheeled mover will be a one stroke lifting design using mechanical leverage to lift the tower. The wheeled mover must incorporate casters that are a minimum of 6 inches (205 mm) in diameter. A wheeled mover requiring a hydraulic pump or a battery operated motor to lift the tower will not be accepted.
				b.	Type: Air transporter configured to fit stage tower base and enable movement of towers through pneumatic cushion supporting majority (approximately 75 percent) of the tower's weight.
		F.	Adjustable Acoustical Shell Ceiling: Acoustical shell ceiling consisting of adjustable-angle acoustical shell ceiling panels supported by integral extruded aluminum truss, suspended from stage rigging pipe batten, and stored in fly-loft in vertical position.
			1.	Ceiling Panel Size and Configuration: As indicated on the project Drawings.
			2.	Ceiling Panel Radius: 10 foot (3.05 m).
			3.	Ceiling Hinges: Aluminum, with self-lubricating polymer bearings that are designed for silent operation. Metal on metal hinges without self-lubricating materials shall not be accepted.
			4.	Integral Truss: Extruded 6063 T6 aluminum alloy. An integral truss is required to keep the ceiling row assembly straight and true. A truss is required to keep the pivoting hinges in line with each other to prevent binding and undue wear when rotating the ceiling row assembly to and from the performance position. A ceiling design without an integral truss shall not be accepted.
			5.	Electrical system incorporating junction box(es) and associated cabling to distribute power and control signals to integrated lighting. System shall have UL or ETL classification. Any system without UL or ETL classification shall not be accepted.
			6.	A tilt switch is provided to prevent accidental activation when the ceiling row is in the storage position.
			7.	Hanger Arms
				a.	The integral truss provides the structure to allow 1 inch (25 mm) square 11 gauge steel hanger arms to be located next to the rigging cables which is the strongest point to support the weight of the ceiling assembly. Hanger arms that are located more than 2 inches (25 mm) from the rigging cables are not acceptable.
			8.	Ceiling Performance Angle Adjustment:
				a.	Spring-loaded steel tube assembly allows the ceiling to be easily locked into the performance position. The stay assembly shall be easily readjusted and marked to identify preferred preset angles.
	** NOTE TO SPECIFIER ** Wenger acoustical shell ceilings may incorporate integrated lighting option. Consult your Wenger representative. Coordinate with electrical engineer and theater rigging consultant.
		G.	Integrated LED Light Fixture: The fixture shall be the Lieto Acoustic Shell Fixture by the Wenger Corporation, headquartered at 555 Park Drive Owatonna, Minnesota 55060.
			1.	No known equal. If providing alternate fixture for approval, submit a proposed fixture layout and photometric point by point calculations generated by an industry accepted computer modeling platform e.g. AGI32 that demonstrates a minimum of 100 foot candles and a uniformity ratio no greater than 3:1 (Max:Min) within the shell for review in accordance with Division 01 procedures.
				a.	Orchestra Shell lighting fixture models requiring quantities of fixtures in excess of the quantity indicated on the project drawings in order to develop any of the specified photometric performance criteria shall not be accepted.
			2.	The orchestra shell manufacturer shall provide and install lighting required by this section based on its photometric performance, the required characteristics of the lighting fixtures and other features of the installation including interconnections and all requirements as expressed herein.
			3.	The shell manufacturer shall determine the model, quantity and layout of the lighting fixtures required to satisfactorily accomplish and achieve all of the design criteria required herein and include costs for the provision and installation of the requisite bill of materials in their bid for the Work of this Section.
			4.	All orchestra shell lighting scope described herein shall be completed by the orchestra shell manufacturer for a complete and operating system.
		H.	Lighting Layout:
			1.	Ceiling panels shall include integral, recessed lighting fixtures with attributes as specified below that appropriately spaced across each ceiling row and interconnected providing power and control to each individual lighting fixture.
			2.	The provided array of Orchestra Shell lighting fixtures shall combine to create a uniform, diffuse distribution of lighting across the entirety of the performance area below that is defined as that located within the footprint of the orchestra shell enclosure.
		I.	Lighting Fixture Attributes:
			1.	Individual lighting fixtures shall provide the following features and performance characteristics:
				a.	Correlated Color Temperature (CCT): 3000 degrees Kelvin.
				b.	Color Rendering Index (CRI): 80.
				c.	Minimum Rated LED Life (L70): 70,000 Hours.
				d.	Cooling Fans: Not Allowed.
				e.	Noise Criteria (maximum allowed): NC-17.
			2.	Fixtures must be designed so that they can be independently aimed from below the ceiling panel without requiring the use of tools. The fixture’s total adjustable three-axis range of motion shall be a minimum of 30 degrees.
			3.	Fixtures shall be available with trim rings on the face side of the panels for a clean installation and to shield, cover and limit visibility around the fixture.
			4.	Fixtures shall use DMX512 (ANSI E1.11) controlled drivers that dim smoothly to 1 percent light output without visible stepping, flash or flicker.
			5.	Fixtures shall include RJ45 connector(s) or 5-pin XLR connector(s) supporting the input/output (daisy-chain) connection of DMX512 lighting control system protocol.
			6.	Fixtures shall include Powercon style twist-lock connector(s) supporting the input/output (daisy-chain) connection of electrical power.
			7.	Fixtures shall be individually addressable using - Remote Device Management (RDM - ANSI E1.20) control standards. Fixtures shall maintain all RDM connection and functionality regardless of whether fixtures are in their “playing” position (horizontal orientation) or “storage” position (vertical orientation.)
			8.	Fixtures shall produce an even beam of light, uniformly spread throughout the field.
			9.	Fixtures shall be available in models that produce symmetrical and asymmetrical beam spread patterns.
			10.	Fixtures proposed for the Work of this Section shall be available with IES format photometric files associated with each fixture model proposed for use herein. IES files can be used in lighting fixture performance computer modeling and analysis software such as AGI32 to demonstrate that the lighting performance meets the design criteria required herein.
			11.	Fixtures proposed for the Work of this Section shall be submitted for third-party, independent testing laboratory characterization and quantification of the fixture’s relative sound pressure levels during normal operation. Include printed lighting fixture product data with the stated Noise Criteria (NC) level of the tested fixture as part of submittal process.
			12.	Fixtures shall produce no Ultra-Violet (UV) or Infra-Red (IR) radiation or Radio Frequency Interference (RFI.)
			13.	Fixtures shall be flicker free and suitable for use with video.
			14.	Fixtures shall be individually listed as a “Directly Controlled Luminaire” for use with UL 924 Emergency Lighting Control.
			15.	Fixtures shall include a safety cable.
			16.	Fixture depth shall be minimal such that the presence of the lighting fixture(s) does not increase the stored depth of the ceiling row.
			17.	Fixtures shall be available with optional glare control accessories including concentric ring louver, hexcel style “egg-crate” louver and homogenizing lens.
			18.	Fixtures shall be listed, carry the label of a nationally recognized testing laboratory and shall be RoHS compliant.
			19.	Fixtures pre-approved as meeting the “Basis of Design” criteria established herein for the orchestra shell lighting fixtures shall be the Lieto manufactured by the Wenger Corporation.
				a.	Requests for substitutions associated with other lighting fixtures shall be submitted no less than 10 days before the scheduled bid date and shall be considered based on the following criteria and submitted data:
					1)	Product Data: Manufacturer's data sheets associated with each product to be included.
					2)	Test results from certified independent testing laboratory indicating compliance with performance requirements required herein.
					3)	Maintenance instructions and recommendations.
					4)	Acoustical testing data from a certified independent testing laboratory demonstrating minimal compliance with required acoustical performance
					5)	Photometric Analysis Document as indicated in paragraph D.3., below
					6)	Sample warranty
				b.	Approval of substitution requests shall be solely indicated by issuance of written Addendum.
		J.	Lighting Performance:
			1.	Photometric Performance:
				a.	A minimum intensity level 100 foot-candles* *average illuminance measured 30 inches (762 mm) above the stage floor.
				b.	Uniformity ratio (max:min): Less than 3.0:1.
				c.	Uniformity ratio (avg:min): Less than 2.5:1.
			2.	Each fixture shall be located and aimed so as to minimize light “scalloping” on the tower walls.
			3.	Photometric Analysis Document:
				a.	The photometric performance of the lighting produced by the shell manufacturer’s proposed lighting system shall be computer modeled and submitted for the review and approval of the specifier as part of the shop drawing submittal process. The purpose of the submitted analysis is to demonstrate that the manufacturer’s quantity and layout of selected lighting fixtures complies with each of the specific photometric requirements called out herein. The computer modeling shall be performed using commercially available lighting analysis software such as AGI32.
				b.	Include at least the following information in the submitted “point-by-point” photometric analysis document:
					1)	Lighting Fixture Schedule - Lighting fixture description including fixture manufacturer, fixture model, output wattage, beam spread, lumens produced, produced CCT and CRI, accessories, IES filename, Light Loss Factor (LLF) setting.
					2)	Calculation Summary - including:
						a)	Average Illuminance in Footcandles.
						b)	Maximum Illuminance in Footcandles.
						c)	Minimum Illuminance in Footcandles.
						d)	Uniformity ratio (max:min).
						e)	Uniformity ratio (avg:min).
					3)	Isocontour lines set at 10 footcandle increments across the entire range of lighting studied in the analysis document.
					4)	Calculation grid at 30 inches (762 mm) above the finished floor (a.f.f.) with calculation points spaced at increments no greater than 5 feet (1524 mm).
					5)	The manufacturer, product name and revision number of the software used to create the analysis document.
					6)	Date completed and identification of the software operator/technician responsible for the preparation of the analysis document.
		K.	Control, Wiring and Interconnections:
			1.	Each fixture shall be equipped with an integral, electronic tilt switch that shall maintain all RDM connection and functionality at all times regardless of whether fixtures are in their “playing” position (horizontal orientation) or “storage” position (vertical orientation.)
			2.	Lighting Control System Data Cabling (DMX512):
				a.	DMX512 lighting control system data cables shall be provided by the shell manufacturer to facilitate the interface of the orchestra shell lighting with the stage lighting system infrastructure.
				b.	DMX512 lighting control system cabling to the ceiling row (provided under another Section) shall be by a theatrically rigged connection direct to the first lighting fixture in that ceiling panel’s row.
				c.	Orchestra shell manufacturers shall provide DMX512 control data system jumper cables of required length(s) using the fixtures’ RJ45 or 5-Pin XLR connectors to daisy-chain control to each of the panel’s orchestra shell lighting fixtures.
				d.	Fixtures shall be provided with on-board, software selectable, 120 ohm, DMX512 terminator resistor capability.
				e.	Secure, dress and organize all data cables to ensure that they do not snag or catch adjacent rigging equipment, scenery and draperies.
			3.	Electrical Power:
				a.	Each ceiling panel’s lighting fixture array shall receive its power (provided under another Section) via a theatrically rigged, “strain-relieved” connection terminated at the ceiling panel’s junction box.
				b.	Jumper cables with PowerCon style connectors shall be used to daisy-chain supply of electrical power from the junction box to each fixture in turn, on the ceiling panel.
				c.	Organize, secure and dress all power cables to ensure that they do not snag or catch adjacent rigging equipment, scenery and drapery.
			4.	Warranty:
				a.	The fixture shall carry a five-year warranty against defects in materials and workmanship. Warranty coverage shall commence at project "acceptance," not with factory shipment. See the Wenger warranty card for service contact information, specifics and Integrated Lighting: Manufacturer's standard UL-approved fixtures located as indicated.
	** NOTE TO SPECIFIER ** Rigging and pipe battens are not furnished by Wenger. Coordinate with theater rigging consultant or with Division 05 metal fabrications section.
		L.	Stage Rigging and Battens: Rigging and battens supporting an acoustical shell ceiling are part of the work of stage curtains, specified elsewhere in this Section.
		M.	Miscellaneous Supports: Channels, and other miscellaneous supports are part of the work of Division 05 Section "Metal Fabrications."
		N.	Finishes:
			1.	Aluminum Framing: Mill finish.
			2.	Steel Finish: Immediately after cleaning and pretreating, electrostatically apply thermosetting TGIC polyester powder coating.
			3.	Opaque Painted Finish for Acoustical Shell Panel: 100 percent acrylic latex, 2-coat, eggshell finish.
			4.	Transparent Wood Finish for Acoustical Shell Panel Face: Manufacturer's standard finish, comparable to AWI custom grade acrylic lacquer.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.8	ACOUSTICAL SHELLS (MAESTRO)
		A.	Basis of Design: Maestro Acoustical Shells as manufactured by Wenger Corporation. Full stage acoustical shell system consisting of mobile acoustical shell towers and adjustable acoustical shell ceiling.
		B.	Materials:
			1.	Aluminum Extruded Bars, Profiles, and Tubes: ASTM B 221 (ASTM B 221M), 6063T alloy.
			2.	Steel Tube: ASTM A 500, hot formed steel tubing.
			3.	Cold-Rolled Steel Sheet: ASTM A 1008/A 1008M, commercial steel, Type B.
			4.	LPL (Low pressure laminate) Thermally fused polyester resin impregnated paper.
			5.	Veneer-Faced Panel Products (MDF core): Meets all CARB-2 requirements for formaldehyde emissions.
			6.	Hardboard: AHA A135.4, Class 1 Tempered - formaldehyde free.
			7.	Thermally-fused polyester surfacing that meets performance requirements of NEMA LD 3 for VGS grade.
			8.	High-Pressure Decorative Laminate: NEMA LD 3, Grade VGS.
				a.	HPDL with urea formaldehyde-free adhesive.
	** NOTE TO SPECIFIER ** STC performance of the acoustical panel used in acoustical shell system is a measurement of the efficiency of sound reflection provided by the acoustical shell. Value below indicates the performance of the Wenger Diva panel.
		C.	Acoustical Panel Sound Transmission: Provide third party test results indicating acoustical shell system comprised of acoustical shell panels have the following sound transmission requirements:
			1.	Sound Transmission Class (STC): Minimum 20 per ASTM E 413.
		D.	Acoustical Shell Panels, General: Manufacturer's standard stressed-skin composite acoustical shell panels, with a minimum of STC 20 to meet performance requirements, designed to mix and blend sound and reflect a maximum range of audible frequencies to both audience and performers.
			1.	Core; 1-1/2 inches thick (38 mm) honeycomb core material shall have an open geometric pattern with cell walls vertical to panel skins and defined by alternating straight and sine wave layers. Height of sine wave shall be 1/2 inch; wall thickness shall correspond to 60 lb. kraft. Bonding of core material to panel faces shall be with permanently cured formaldehyde free urethane adhesive. Foam core materials and contact adhesives shall not be permitted.
	** NOTE TO SPECIFIER **Delete face types not required.
			2.	Face, Low Pressure Laminate Panel: 1/8 inch (3 mm) thick hardboard stressed skin with a thermally-fused polyester surfacing. Material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 20.
			3.	Face, Wilsonart High Pressure Plastic Laminate-Faced Panel: Material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 20.
			4.	Face, Sherwin Williams Kem Aqua Painted Panel: 1/8 inch (3 mm) thick hardboard stressed skin, material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 20.
			5.	Face, Wood Veneer-Faced Panel: 1/4 inch (6 mm) thick hardwood plywood-faced medium density fiberboard stressed skin, material and finish as indicated, with no exposed fasteners. This panel assembly shall have a minimum of STC 21.
			6.	Back: 1/8 inch (3 mm) thick hardboard stressed skin, black.
			7.	Panel Edge Frame: Straight panel edges are reinforced with extruded aluminum edge frame.
			8.	Acclimate panel face and back materials in a temperature and humidity controlled environment so that they reach appropriate equilibrium condition prior to lamination to improve dimensional stability of finished laminated panels.
				a.	Documentation of specified process must be available for review.
		E.	Mobile Acoustical Towers: Free-standing, self-supporting, movable towers for stage back and side walls. Towers consist of acoustical shell panels in rigid, diagonally-braced vertical steel frame, with center panel and two hinged wing panels, in nesting configuration minimizing required storage space. Wing panel on tower equipped with latching hardware and stage access door where indicated. Counterweighted tower base with adjustable front leveling pads concealed by removable access panel.
			1.	Tower Size: 12 foot (3660 mm) wide or 10 foot (3050 mm) wide; consisting of one 4 foot (1220 mm) center panel and two 4 foot (1220 mm) wing panels; or one 4 foot (1220 mm) center panel and two 3 foot (914 mm) wing panels for the 10' option.
			2.	Tower Panel Radius: 8 foot (2438 mm).
			3.	Tower Panel Face Finish:
				a.	LPL - Thermally fused polyester resin impregnated paper.
				b.	Painted.
				c.	High-pressure laminate.
				d.	Wood veneer.
			4.	Door and Wing Panel Hardware:
				a.	Hinges: steel tube with self-lubricating sintered bronze bearings which pivot on a 5/16 inch (8 mm) diameter steel pin that are designed for silent operation and requiring no replacement parts. Metal-on-metal hinges without self-lubricating materials on towers are not acceptable.
				b.	Slide-lock mechanism, pull handle, and adjustable wing stay.
			5.	Tower Frame:
				a.	Tubular steel vertical tower frames with welded steel structure.
			6.	Stage Tower Transporter: Wheeled mover shall be a one stroke lifting design using mechanical leverage to lift the tower. The wheeled mover shall incorporate casters that are a minimum of 6" in diameter. A wheeled mover requiring a hydraulic pump shall not be accepted.
		F.	Adjustable Acoustical Shell Ceiling: Acoustical shell ceiling consisting of adjustable-angle acoustical shell ceiling panels supported by integral steel frame, suspended from stage rigging pipe batten, and stored in fly-loft in vertical position.
			1.	Ceiling Panel Size and Configuration: As indicated on drawings.
			2.	Ceiling Panel Radius: 10 foot (3050 mm).
			3.	Hanger Arms:
				a.	The integral steel frame provides the structure to allow 1 inch (25 mm) square, 11 gauge steel hanger arms to be located next to the stage rigging cables, which is the strongest point to support the weight of the ceiling assembly. Hanger arms that are located more than 2 inches (25 mm) from the rigging cables are not acceptable.
			4.	Ceiling Performance Angle Adjustment:
				a.	Poly strap with adjustable length allows the ceiling to be easily set into the performance position. The strap is adjustable to preferred angles in approximately 1 degree increments from 0 to 45 degrees.
		G.	Integrated LED Light Fixture: The fixture shall be the Lieto Acoustic Shell Fixture by the Wenger Corporation, headquartered at 555 Park Drive Owatonna, Minnesota 55060;
			1.	No known equal. If providing alternate fixture for approval, submit a proposed fixture layout and photometric point by point calculations generated by an industry accepted computer modeling platform e.g. AGI32 that demonstrates a minimum of 100 foot candles and a uniformity ratio no greater than 3:1 (Max:Min) within the shell for review in accordance with Division 01 procedures.
				a.	Orchestra Shell lighting fixture models requiring quantities of fixtures in excess of the quantity indicated on the project drawings in order to develop any of the specified photometric performance criteria shall not be accepted.
			2.	The orchestra shell manufacturer shall provide and install lighting required by this section based on its photometric performance, the required characteristics of the lighting fixtures and other features of the installation including interconnections and all requirements as expressed herein.
			3.	The shell manufacturer shall determine the model, quantity and layout of the lighting fixtures required to satisfactorily accomplish and achieve all of the design criteria required herein and include costs for the provision and installation of the requisite bill of materials in their bid for the Work of this Section.
			4.	All orchestra shell lighting scope described herein shall be completed by the orchestra shell manufacturer for a complete and operating system.
		H.	Lighting Layout:
			1.	Ceiling panels shall include integral, recessed lighting fixtures with attributes as specified below that appropriately spaced across each ceiling row and interconnected providing power and control to each individual lighting fixture.
			2.	The provided array of Orchestra Shell lighting fixtures shall combine to create a uniform, diffuse distribution of lighting across the entirety of the performance area below that is defined as that located within the footprint of the orchestra shell enclosure.
		I.	Lighting Fixture Attributes:
			1.	Individual lighting fixtures shall provide the following features and performance characteristics:
				a.	Correlated Color Temperature (CCT): 3000 degrees Kelvin.
				b.	Color Rendering Index (CRI): 80.
				c.	Minimum Rated LED Life (L70): 70,000 Hours.
				d.	Cooling Fans: Not Allowed.
				e.	Noise Criteria (maximum allowed): NC-17.
			2.	Fixtures must be designed so that they can be independently aimed from below the ceiling panel without requiring the use of tools. The fixture’s total adjustable three-axis range of motion shall be a minimum of 30 degrees
			3.	Fixtures shall be available with trim rings on the face side of the panels for a clean installation and to shield, cover and limit visibility around the fixture.
			4.	Fixtures shall use DMX512 (ANSI E1.11) controlled drivers that dim smoothly to 1 percent light output without visible stepping, flash or flicker.
			5.	Fixtures shall include RJ45 connector(s) or 5-pin XLR connector(s) supporting the input/output (daisy-chain) connection of DMX512 lighting control system protocol.
			6.	Fixtures shall include Powercon style twist-lock connector(s) supporting the input/output (daisy-chain) connection of electrical power.
			7.	Fixtures shall be individually addressable using - Remote Device Management (RDM - ANSI E1.20) control standards. Fixtures shall maintain all RDM connection and functionality regardless of whether fixtures are in their “playing” position (horizontal orientation) or “storage” position (vertical orientation.)
			8.	Fixtures shall produce an even beam of light, uniformly spread throughout the field.
			9.	Fixtures shall be available in models that produce symmetrical and asymmetrical beam spread patterns.
			10.	Fixtures proposed for the Work of this Section shall be available with IES format photometric files associated with each fixture model proposed for use herein. IES files can be used in lighting fixture performance computer modeling and analysis software such as AGI32 to demonstrate that the lighting performance meets the design criteria required herein.
			11.	Fixtures proposed for the Work of this Section shall be submitted for third-party, independent testing laboratory characterization and quantification of the fixture’s relative sound pressure levels during normal operation. Include printed lighting fixture product data with the stated Noise Criteria (NC) level of the tested fixture as part of submittal process.
			12.	Fixtures shall produce no Ultra-Violet (UV) or Infra-Red (IR) radiation or Radio Frequency Interference (RFI.)
			13.	Fixtures shall be flicker free and suitable for use with video.
			14.	Fixtures shall be individually listed as a “Directly Controlled Luminaire” for use with UL 924 Emergency Lighting Control.
			15.	Fixtures shall include a safety cable.
			16.	Fixture depth shall be minimal such that the presence of the lighting fixture(s) does not increase the stored depth of the ceiling row.
			17.	Fixtures shall be available with optional glare control accessories including concentric ring louver, hexcel style “egg-crate” louver and homogenizing lens.
			18.	Fixtures shall be listed, carry the label of a nationally recognized testing laboratory and shall be RoHS compliant.
			19.	Fixtures pre-approved as meeting the “Basis of Design” criteria established herein for the orchestra shell lighting fixtures shall be the Lieto manufactured by the Wenger Corporation.
				a.	Requests for substitutions associated with other lighting fixtures shall be submitted no less than 10 days before the scheduled bid date and shall be considered based on the following criteria and submitted data:
					1)	Product Data: Manufacturer's data sheets associated with each product to be included.
					2)	Test results from certified independent testing laboratory indicating compliance with performance requirements required herein.
					3)	Maintenance instructions and recommendations.
					4)	Acoustical testing data from a certified independent testing laboratory demonstrating minimal compliance with required acoustical performance
					5)	Photometric Analysis Document as indicated in paragraph D.3., below
					6)	Sample warranty
				b.	Approval of substitution requests shall be solely indicated by issuance of written Addendum.
		J.	Lighting Performance:
			1.	Photometric Performance:
				a.	A minimum intensity level 100 foot-candles* *average illuminance measured 30 inches (762 mm) above the stage floor.
				b.	Uniformity ratio (max:min): Less than 3.0:1.
				c.	Uniformity ratio (avg:min): Less than 2.5:1.
			2.	Each fixture shall be located and aimed so as to minimize light “scalloping” on the tower walls.
			3.	Photometric Analysis Document:
				a.	The photometric performance of the lighting produced by the shell manufacturer’s proposed lighting system shall be computer modeled and submitted for the review and approval of the specifier as part of the shop drawing submittal process. The purpose of the submitted analysis is to demonstrate that the manufacturer’s quantity and layout of selected lighting fixtures complies with each of the specific photometric requirements called out herein. The computer modeling shall be performed using commercially available lighting analysis software such as AGI32.
				b.	Include at least the following information in the submitted “point-by-point” photometric analysis document:
					1)	Lighting Fixture Schedule - Lighting fixture description including fixture manufacturer, fixture model, output wattage, beam spread, lumens produced, produced CCT and CRI, accessories, IES filename, Light Loss Factor (LLF) setting.
					2)	Calculation Summary - including:
						a)	Average Illuminance in Footcandles.
						b)	Maximum Illuminance in Footcandles.
						c)	Minimum Illuminance in Footcandles.
						d)	Uniformity ratio (max:min).
						e)	Uniformity ratio (avg:min).
					3)	Isocontour lines set at 10 footcandle increments across the entire range of lighting studied in the analysis document.
					4)	Calculation grid at 30 inches (762 mm) above the finished floor (a.f.f.) with calculation points spaced at increments no greater than 5 feet (1524 mm).
					5)	The manufacturer, product name and revision number of the software used to create the analysis document.
					6)	Date completed and identification of the software operator/technician responsible for the preparation of the analysis document.
		K.	Control, Wiring and Interconnections:
			1.	Each fixture shall be equipped with an integral, electronic tilt switch that shall maintain all RDM connection and functionality at all times regardless of whether fixtures are in their “playing” position (horizontal orientation) or “storage” position (vertical orientation.)
			2.	Lighting Control System Data Cabling (DMX512):
				a.	DMX512 lighting control system data cables shall be provided by the shell manufacturer to facilitate the interface of the orchestra shell lighting with the stage lighting system infrastructure.
				b.	DMX512 lighting control system cabling to the ceiling row (provided under another Section) shall be by a theatrically rigged connection direct to the first lighting fixture in that ceiling panel’s row.
				c.	Orchestra shell manufacturers shall provide DMX512 control data system jumper cables of required length(s) using the fixtures’ RJ45 or 5-Pin XLR connectors to daisy-chain control to each of the panel’s orchestra shell lighting fixtures.
				d.	Fixtures shall be provided with on-board, software selectable, 120 ohm, DMX512 terminator resistor capability.
				e.	Secure, dress and organize all data cables to ensure that they do not snag or catch adjacent rigging equipment, scenery and draperies.
			3.	Electrical Power:
				a.	Each ceiling panel’s lighting fixture array shall receive its power (provided under another Section) via a theatrically rigged, “strain-relieved” connection terminated at the ceiling panel’s junction box.
				b.	Jumper cables with PowerCon style connectors shall be used to daisy-chain supply of electrical power from the junction box to each fixture in turn, on the ceiling panel.
				c.	Organize, secure and dress all power cables to ensure that they do not snag or catch adjacent rigging equipment, scenery and drapery.
			4.	Warranty:
				a.	The fixture shall carry a five-year warranty against defects in materials and workmanship. Warranty coverage shall commence at project “acceptance,” not with factory shipment. See the Wenger warranty card for service contact information, specifics and Integrated Lighting: Manufacturer's standard UL-approved fixtures located as indicated.
	** NOTE TO SPECIFIER ** Rigging and pipe battens are not furnished by Wenger. Coordinate with theater rigging consultant or with Division 05 metal fabrications section.
		L.	Stage Rigging and Battens: Rigging and battens supporting acoustical shell ceiling are part of the work of stage curtains, specified elsewhere in this Section.
		M.	Miscellaneous Supports: Channels, and other miscellaneous supports are part of the work of Division 05 Section "Metal Fabrications."
		N.	Finishes:
			1.	Steel Finish: Immediately after cleaning and pretreating, electrostatically apply thermosetting TGIC polyester powder coating or wet paint.
			2.	Opaque Painted Finish for Acoustical Shell Panel: 100 percent acrylic latex, 2-coat, eggshell finish.
			3.	Transparent Wood Finish for Acoustical Shell Panel Face: Manufacturer's standard finish, comparable to AWI custom grade acrylic lacquer.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.9	ACOUSTICAL SHELLS (LEGACY CLASSIC)
		A.	Basis of Design: Legacy Classic Acoustical Shells as manufactured by Wenger Corporation; mobile acoustical towers.
		B.	Materials:
			1.	Aluminum Extruded Bars, Profiles, and Tubes: ASTM B 221 (ASTM B 221M), 6063T alloy.
			2.	Steel Tube: ASTM A 500, hot formed steel tubing.
			3.	Hardboard: AHA A135.4, Class 1 Tempered - urea formaldehyde free.
			4.	High-Pressure Decorative Laminate: NEMA LD 3, Grade VGS.
				a.	HPDL with urea formaldehyde-free adhesive.
		C.	Acoustical Shell Panels: Manufacturer's standard stressed-skin composite acoustical shell panels, designed to mix and blend sound and reflect a maximum range of audible frequencies to both audience and performers.
			1.	Core: 3/4-inch (19-mm) thick honeycomb, resin-impregnated, bonded to frame and faces with permanent urethane adhesive. Contact cement adhesive does not meet the requirements of this specification.
			2.	Face, Painted Panel: 0.10 inch (2.5 mm) thick hardboard stressed skin, material and finish as indicated, with no exposed fasteners.
			3.	Back: 0.10 inch (2.5 mm) thick hardboard stressed skin.
			4.	Panel Edge Frame: Extruded aluminum edge angle, along straight edges.
		D.	Mobile Acoustical Towers: Free-standing, self-supporting, movable towers for stage back and side walls. Towers consist of acoustical shell panels with rigid steel frame in nesting configuration. Counterweighted tower base, painted oyster, with non-marring casters.
			1.	Size: 6 feet (1829 mm) wide.
			2.	Height: 15 feet 2 inches (4623 mm).
			3.	Canopy Angle: Canopy may be set at 45, 60, 75 and 90 degree angles. Canopy tool included to raise and lower canopy.
			4.	Kicker Panel: Hinged to bottom of lower panel and folds flat for storage.
			5.	Lift Mechanism: Pulley design lift assisted mechanism raises and lowers shell in just 6 turns with the use of a handle.
			6.	Tower Panel Face Finish: Laminated Hardboard: [Match Architect’s sample].
			7.	Tower Storage: Towers nest for maximum space utilization.
		E.	Adjustable Acoustical Shell Ceiling: Acoustical shell ceiling consisting of adjustable-angle acoustical shell ceiling panels, suspended from stage rigging pipe batten, and stored in fly-loft in vertical position.
			1.	Size and Configuration: As indicated.
			2.	Radius: 10 feet (3050 mm).
			3.	Panel Face Finish:
	** NOTE TO SPECIFIER ** Delete panel face finish not required.
				a.	Painted Hardboard: Match Architect's sample.
				b.	Plastic Laminate: Color as selected by Architect from manufacturer’s available wood grain patterns.
			4.	Panel Hinges: Self-lubricating ABS bushings and steel framework.
	** NOTE TO SPECIFIER ** Wenger acoustical shell ceilings may incorporate integrated lighting option. Consult your Wenger representative. Coordinate with electrical engineer and theater rigging consultant.
		F.	Integrated Lighting: Manufacturer's standard UL-approved fixtures located as indicated. Exposed wire harness.
	** NOTE TO SPECIFIER ** Rigging and pipe battens are not furnished by Wenger. Coordinate with theater rigging consultant or with Division 05 metal fabrications section.
		G.	Stage Rigging and Battens: Rigging and battens supporting acoustical shell ceiling are specified in Division 11 Section "Stage Curtains."
		H.	Miscellaneous Supports: Battens, channels, and other miscellaneous supports are specified in Division 05 Section "Metal Fabrications."
		I.	Electrical Wiring: Wiring of integral light fixtures is specified in Division 26 wiring sections.
		J.	Finishes:
			1.	Steel Framing: Powder coat painted finish, black.
			2.	Low Pressure Thermofused Acoustical Shell Panel: Polyester decorative finishes.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.10	ACOUSTIC TOWER (LEGACY SELECT ACOUSTIC TOWER)
		A.	Basis of Design: Legacy Select Acoustic Tower as manufactured by Wenger Corporation; mobile acoustical towers.
		B.	Materials:
			1.	Aluminum Extruded Bars, Profiles, and Tubes: ASTM B 221 (ASTM B 221M), 6063T alloy.
			2.	Steel Tube: ASTM A 500, hot formed steel tubing
			3.	Hardboard: AHA A135.4, Class 1 Tempered - urea formaldehyde free.
			4.	High-Pressure Decorative Laminate: NEMA LD 3, Grade VGS.
				a.	HPDL with urea formaldehyde-free adhesive.
		C.	Acoustical Shell Panels: Manufacturer's standard stressed-skin composite acoustical shell panels, designed to mix and blend sound and reflect a maximum range of audible frequencies to both audience and performers.
			1.	Core: 3/4-inch (19-mm) thick honeycomb, resin-impregnated, bonded to frame and faces with permanent urethane adhesive. Contact cement adhesive does not meet the requirements of this specification.
			2.	Face, Painted Panel: 3/16-inch (5-mm) thick hardboard stressed skin, material and finish as indicated, with no exposed fasteners.
			3.	Back: 3/16-inch (5-mm) thick hardboard stressed skin, painted black.
			4.	Panel Edge Frame: Extruded aluminum edge angle, along straight edges.
		D.	Mobile Acoustical Towers: Free-standing, self-supporting, movable towers. Towers consist of acoustical shell panels with rigid steel frame in nesting configuration. Tower is equipped with removable bottom filler panel that stores on back of tower. Counterweighted tower base, painted black, with non-marring casters.
			1.	Size: 6 feet (1829 mm) wide.
			2.	Height: 11 feet 6 inches (3505 mm).
			3.	Panel Radius: 10 feet (3050 mm).
			4.	Fabrication: Construct panels utilizing nested configuration and folding top to enable nested storage and passage of panel through 34 by 80 inch (864 by 2032 mm) door opening. Equip top panels with compression gas springs to support raising and lowering of panel. Include standard tools required to raise and lower panels.
			5.	Panel Face Finish:
	** NOTE TO SPECIFIER ** Delete panel face finish not required.
				a.	Painted Hardboard: Match Architect's sample.
				b.	Plastic Laminate: Color as selected by Architect from manufacturer’s available wood grain patterns.
			6.	Panel Hinges: Self-lubricating ABS bushings and steel framework.
		E.	Finishes:
			1.	Steel Framing: Powder coat painted finish, black.
			2.	Opaque Painted Finish for Acoustical Shell Panel: 100 percent acrylic latex, 2-coat, matte finish.
			3.	Woodgrain Laminate: Selection of Wilson Art decorative laminates.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.11	STAGE TOWER TRANSPORTER
		A.	Wheeled Mover: Single-stroke, lifting-design wheeled mover:
			1.	The wheeled Mover shall be designed to use mechanical leverage to lift the tower.
			2.	The wheeled mover shall incorporate tri-casters that are a minimum of 6 inches in diameter.
			3.	Wheeled movers requiring a hydraulic pump or a battery-operated motor to lift the tower shall not be accepted.
	** NOTE TO SPECIFIER ** Air transporter is optional. Delete if not required.
		B.	Air Transporter:
			1.	The air transporter shall be designed to enable the movement of the towers on a pneumatic cushion of air.
			2.	The air transporter shall be configured to fit the tower base.
			3.	The air transporter shall be designed to support (approximately) 75 percent of the tower’s weight.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.12	ORCHESTRA PIT FILLERS
		A.	Orchestra pit fillers for:
	** NOTE TO SPECIFIER ** Delete application not required.
			1.	Stage level.
			2.	Audience seating level.
			3.	Floor level platform.
		B.	Basis of Design: Portable, interlocking platform system with interchangeable, adjustable columns cross braced to independently supported platforms, with individually removable acoustically-isolated honeycomb panels, as manufactured by Wenger Corporation.
		C.	Structural Performance, Orchestra Pit Filler:
			1.	Uniform Live Load: 150 lbf/sq. ft. (7.1 kN/sq. m).
			2.	Point Load: No permanent deformation from 1000 lb (453 kg) load on 2-inch (50 mm) diameter rubber wheeled caster.
			3.	Deflection: Not exceeding L/360 at design live load for 72 inch (1829 mm) long panel and span.
	** NOTE TO SPECIFIER ** Verify seismic performance requirements of authorities having jurisdiction. Consult project structural engineer. When required, retain below plus retain related Submittals requirement and Part 3 seismic bracing requirements.
		D.	Seismic Performance: Comply with ASCE 7, "Minimum Design Loads for Buildings and Other Structures": Section 9, "Earthquake Loads" based upon seismic design criteria indicated.
		E.	Materials:
			1.	Aluminum:
				a.	Sheet and Plate: ASTM B 209 (ASTM B 209M).
				b.	Extruded Bars, Profiles, and Tubes: ASTM B 221 (ASTM B 221M), 6063-T6 alloy.
				c.	Extruded Structural Pipe and Tube: ASTM B 429.
			2.	Softwood Plywood: DOC PS 1.
			3.	Hardboard: AHA A135.4, tempered grade.
	** NOTE TO SPECIFIER ** Wenger offers optional application of wood strip flooring to match flooring specified for adjacent stage floor. Coordinate flooring selection between this section and wood flooring specification. Final sanding and finishing of applied stage flooring is performed in the field by the stage flooring installer and not by Wenger. Consult with Wenger representative.
			4.	Wood Stage Flooring: Refer to Division 09 Section "Wood Flooring."
		F.	Framing Components:
			1.	Main Support Beams: Extruded aluminum with dual fastener tracks for panel connection and adjustable beam-to-stage connection bracket fastened to stage using threaded insert and 3/8 inch (9.5 mm) diameter threaded locking device.
			2.	Cross Beams: Extruded aluminum with single fastener track for panel connection, attached to main support beams with pin and socket connection requiring no tools.
			3.	Column Assemblies: Extruded aluminum, with pinned connection to main support beams and threaded leveling foot allowing total adjustment of 4 inches (102 mm), plus or minus.
			4.	Bracing: Aluminum or steel, attached to main support beams and cross beams, with pinned connection to columns.
		G.	Composite Panel Deck:
			1.	Thickness: 3-9/16 inch (90 mm) overall.
			2.	Panel Faces: Softwood Plywood, 11/32 inch (8.7 mm) thick, A-C Group One exterior with 1/8 inch (3 mm) tempered hardboard on face.
			3.	Core: Phenolic impregnated paper honeycomb, 2-5/8 inch (67 mm) thick.
			4.	Panel Edges: Extruded PVC, with glass-filled nylon corners.
			5.	Panel Attachments: Integral spring-loaded screw assemblies.
	** NOTE TO SPECIFIER ** Select traffic surface below. Hardboard is available with natural finish or painted black. Wood tongue-and-groove flooring is matched to adjacent stage flooring, and shall be field finished by the stage wood flooring Installer following delivery of the orchestra pit filler. Delete surface and finish not required.
			6.	Traffic Surface: Hardboard, tempered, 1/8 inch (3.2 mm).
				a.	Finish: Natural finish.
				b.	Finish: Painted black.
			7.	Traffic Surface: Tongued and grooved wood strip flooring.
				a.	Finish: Hard Maple.
				b.	Finish: Red Oak.
				c.	Finish: White Oak.
	** NOTE TO SPECIFIER ** Retain and edit optional accessories below per project requirements.
		H.	Accessories:
			1.	Storage and Transport Carts: Manufacturer's standard steel tube-framed transport carts configured for panel and frame components, with heavy-duty casters and clamping safety strap, configured deck units or framing members.
			2.	Back Closure Panels: Perimeter closure panels matching horizontal surface, not less than 3/4 inch (19 mm) thick plywood, mounted to platform with clamps.
			3.	Curtain Closures: Manufacturer's standard stage-drapery-fabric skirting closures with hanging accessories, color as selected by Architect from manufacturer's full range.
		I.	Finishes:
			1.	Metal Finishes:
				a.	Aluminum: Mill finish.
				b.	Steel: Powder-coated finish.
	** NOTE TO SPECIFIER ** Edit finishes below to correspond to project requirements. Note that field finishing of wood strip flooring is not provided by Wenger.
			2.	Hardboard Opaque Finish: 100 percent acrylic paint, specially formulated for adhesion to impermeable surfaces, 1-coat, satin finish, black.
			3.	Wood Strip Flooring Finish: Unfinished. Refer to Division 08 Section "Wood Flooring" for requirements for field applied transparent finish to match adjacent stage flooring.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.13	STAGE PLATFORMS
		A.	Basis of Design: StageTek Platforms; portable stage platforms and seated risers as manufactured by Wenger Corporation.
		B.	Structural Performance Requirements:
			1.	Stage Platforms and Risers: Standard Uniform Load 4 feet by 8 feet (1219 mm by 2438 mm) Deck: 125 lbf/sq ft (6 kN/sq m). Heavy-Duty Uniform Load 4 feet by 8 feet (1219 mm by 2438 mm) Deck with additional 5th leg: 200 lbf/sq ft (9.6 kN sq m).
			2.	Stage Platforms and Risers: Dynamic Live Load: Side load of 15 percent of total Uniform Live Load: 600lb (2.7 kN) side load on a 4 feet by 8 feet (1219 mm by 2438 mm) platform under a total Uniform Live Load of 4,000 lbs (17.8 kN).
			3.	Stage Platforms and Risers: Point Load: 1,500lb (6.7 kN) applied via 1 inch (2.5 cm) diameter pin.
			4.	Stage Platforms and Risers: Fully replaceable components including corners, frame and wood deck. Replaceable in the field with common tools.
			5.	Treads of Stairs: Uniform Load: 500 lbs (227 Kg) per 36 inches x 11 inches tread. (91.44 cm X 27.94 cm), and concentrated load: 300 lbs (136 Kg) on area of 12 sq. in. (77.4 sq. cm): Total Uniform Load of 1,000 lbs (454 Kg) per stair assembly.
			6.	Guard Rail Concentrated Load: 200 lbf (0.89 kN) applied at any point in any direction.
			7.	Guard Rail Uniform Load: 50 lbf/ft. (0.73 kN/m) applied to top rail.
			8.	Intermediate Rails, Panels, and Baluster Concentrated Load: 50 lbf (0.22 kN) applied to 1 sq. ft. (0.093 sq. m) area.
			9.	Guard Rail In-Fill Panel compliant with IBC 4 inches (102 mm) sphere code.
		C.	Materials:
			1.	Aluminum: Complies with ASTM Standards listed above in section 1.3 C.
	** NOTE TO SPECIFIER ** Retain and edit requirements in paragraph and subparagraphs below for projects seeking LEED certification. Confirm that manufacturer(s) are able to meet requirements.
			2.	Materials Meeting Sustainable Design Requirements:
				a.	Provide stage platforms and risers made with products and adhesives that contain no urea formaldehyde.
			3.	Softwood Plywood: DOC APA PS1.
			4.	Hardboard: AHA A135.4, Tempered Grade.
			5.	Hardware and Fasteners: Manufacturer's standard non-corroding type, permanently mounted to units, remaining set or tightened under load and vibration in service, and designed to preclude user contact with sharp edges.
		D.	Frame: Extruded 6063-T6 aluminum, 4 inches tall (102 mm), with hidden contours to accept attachments. Rounded 1.5 inches (38 mm) hand-hold area open to accept power-grip (closed-grip) around entire perimeter. Frame components are repairable and replaceable.
		E.	Corners: Cast 380 aluminum corner assembly engages leg 3 inches (76.2 mm) and secures leg with a full-length 2.75 inches (69.85 mm) convex brace driven by a threaded bolt operated with a nylon t-handle. Corner assemblies are repairable and replaceable.
		F.	Legs: Legs operate individually and are constructed of extruded 6063-T6 aluminum round tube, 2.50 inches diameter (63.5 mm) with a wall thickness of .075 inch (1.905 mm). Standard fixed-height legs available in 8, 16, 24, 32, and 40 inches (200, 410, 610, 810, and 1020 mm) high, as required for layout indicated. Non-marking cap. Legs to store resting on frame rails or in clamping brackets within deck frames.
	** NOTE TO SPECIFIER ** Retain optional subparagraphs below that are applicable to project.
			1.	Custom Length Legs: Provide where required for layout indicated.
			2.	Fixed Height Legs: Provide where indicated. Legs constructed of extruded 6063-T6 aluminum round tube, 2.50 inches diameter (63.5 mm) with a wall thickness of .075 inch (1.905 mm). Standard fixed-height legs available in 8, 16, 24, 32, 40, and 48 inches (200, 410, 610, 810, 1020 and 1220 mm) high, as required for layout indicated. Non-marking cap. Legs to store resting on frame rails or in clamping brackets within deck frames.
			3.	Adjustable Legs: Provided where indicated. Constructed of extruded 6063-T6 aluminum tube, 2.50 inches diameter (63.5 mm) with a wall thickness of .0750 inch (1.905 mm) with an adjustable threaded foot for infinite adjustability plus or minus 2 inches (51 mm) from nominal length of leg. The foot shall provide a non-marking rubber pad.
			4.	Telescoping Legs: Provide where indicated. Standard Telescoping Legs available in 3 configurations adjusting between 16 inches to 28 inches (40.64 cm to 71.12 cm), 24 inches to 40 inches (60.96 cm to 101.60 cm), and 30 inches to 54 inches (76.20 cm to 137.16 cm). Nominal height adjustment in increments of 4 inches (102 mm) secured with spring-loaded quick-release pin. Constructed of extruded 6063-T6 aluminum round outer tube, 2.50 by .075 inch (63.5 by 1.905 mm) telescoping over a 2 inches by 0.125 inch (50.8 by 3.17 mm) inner tube. With an adjustable threaded foot providing for fine adjustability between beyond nominal set length of leg. The foot shall provide a non-marking rubber pad. Inner and outer Tubes secured with non-rattling bushings and shall not pull apart from each other.
	** NOTE TO SPECIFIER ** Select one of four options for deck panel finish below. Hardboard is available with natural finish two sides, or with painted finish on top and natural finish on bottom.
		G.	Deck Panels: Manufacturer's standard panel construction, 3/4-inch (19-mm) overall thickness, consisting of minimum 1/2-inch (12-mm) thick plywood substrate with finish surfaces consisting of, edged with extruded aluminum:
	** NOTE TO SPECIFIER ** Delete finish not required.
			1.	Finish: 1/8 inch (3 mm) tempered hardboard, with painted top surface.
			2.	Finish: Black 0.030 inch (.76-mm) thick Standard Textured polypropylene with black smooth HDPE backer sheet.
			3.	Finish: Black 0.050 inch (1.27-mm) thick Heavy Duty textured polypropylene with black smooth HDPE backer sheet.
			4.	Finish: Manufacturer's standard carpet, with plywood bottom.
			5.	Finish: Plywood substrate ready to receive scheduled field-applied carpet.
			6.	Panel Dimensions: Manufacturer's standard sizes, as required for layout indicated.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		H.	Guards and Railings: Complying with performance requirements, clamp-attached without tools, lower horizontal rail acts as chair stop. Optional infill panels bring Guard Rails into compliance with International Building Code specifying that a 4 inches (102 mm) sphere object cannot pass through the railing.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		I.	Ramps: Complying with performance and accessibility requirements including 2015 IBC Section 1012, adjustable to meet platform height, portable and compatible with platform panel storage cart.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		J.	Stairs: Fixed stair set, sized as required by platform layout, with handrails and slip-resistant treads.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		K.	Stairs: Articulating stair set, sized as required by platform layout, with handrails and slip-resistant treads.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		L.	Box Step: Single relocatable box step equipped with clamps for fixing in place, height as required, located as indicated.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		M.	Leg Storage Clips: Provide bottom-of-deck panel leg storage clips.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		N.	Chair Stops: Clamp on leg stop, able to be installed and demounted without tools constructed of tube steel. Semi-permanent Chair Stop constructed of extruded PVC and secured into deck with screws.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		O.	Storage Cart: Steel tube-framed, folding transport cart with heavy-duty 8 inches (200 mm) casters and clamping safety strap. Provide number of carts required for layout indicated. Cart designed to carry up to 6 decks or 6 guardrails. Combinations of decks and guardrails can be stored on cart.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		P.	Closure Panels: Closure panels matching Standard textured horizontal surface, not less than 3/4 inch (19 mm) thick plywood, secured with tool-free snap attachment located as follows:
			1.	Front of unit.
			2.	Sides of unit.
			3.	Intermediate risers.
	** NOTE TO SPECIFIER ** Retain optional accessories if required by project.
		Q.	Curtain Closures and Backdrops: Manufacturer's standard stage-drapery-fabric curtain closures with hanging accessories, as follows:
			1.	Skirting closures.
			2.	Backdrop closure, 8 foot- (2.4 m) high, with metal frame.
			3.	Color: As selected by Architect from manufacturer's full range.
		R.	Metal Finishes: Aluminum: Mill finish.
		S.	Opaque Finish for Hardboard: 100 percent acrylic paint, specially formulated for adhesion to impermeable surfaces, 1-coat, satin finish, black.
		T.	Fabrication: Provide portable stages and risers meeting performance requirements, with the following characteristics:
			1.	Portable and storable in space indicated.
			2.	Easily set up and disassembled without use of special tools or loose fasteners.
			3.	Modular and reconfigurable.
			4.	Platform components replaceable with common tools to include corners, frame sections, and platform decking.
			5.	Platforms supported by individual legs that are storable inside the platform frame.
			6.	Platforms designed for comfortable and secure power-grip (closed-grip) anywhere around entire deck perimeter.
			7.	Lightweight leg sets/understructures - 40 inches (101 cm) tall or shorter weigh less than 10 lbs (4.5 kg).
	** NOTE TO SPECIFIER ** Retain material below if specifying Wenger's unique AcoustiCabinet acoustically enhanced instrument storage casework. These cabinets provide the designer with the capability of increasing control over excess sound levels in rehearsal spaces. Delete if not required.
	2.14	MUSICAL INSTRUMENT STORAGE CASEWORK
	** NOTE TO SPECIFIER ** Retain paragraphs below corresponding to project scope. Retain description of optional acoustically enhanced instrument storage casework where Wenger AcoustiCabinet products are included in project.
		A.	Basis of Design: UltraStor Storage Cabinets as manufactured by Wenger Corporation. Modular instrument storage casework with integral bases, adjustable levelers, and through-bolted fastening, enabling owner reconfiguration of unit layout.
	** NOTE TO SPECIFIER ** Retain paragraphs below that correspond to scope of project. Retain paragraph and subparagraph below when utilizing Wenger's AcoustiCabinet on project.
			1.	Acoustically enhanced instrument storage casework finished with interior lining of sound-absorbent material providing sound absorption and noise reduction properties.
			2.	Sound Absorption Average: Minimum SAA of 0.80, based upon sound absorption coefficient for twelve one-third octave bands from 200 to 2500 Hz, inclusive, with a minimum Noise Reduction Coefficient (NRC) of 0.75, per ASTM C 423 and ASTM E 795.
			3.	Acoustical Performance: Comply with manufacturer's published sound absorption data.
			4.	Wave grille doors in 5/16 inch (24 mm) and 1/4 inch (6.4 mm) diameter designed to reduce vibration.
			5.	Adjustable shelf system integrated into cabinet walls allowing shelf placement at increments common to musical instruments. No loose parts or tools required. Shelf system to include a latch to prevent unintended shelf movement.
	** NOTE TO SPECIFIER ** Below relates to contractor requirement for securing architectural components to building structure. Verify seismic performance requirements of authorities having jurisdiction. Consult project structural engineer. When required, retain below and indicate special bracing and fastening requirements on drawings. Delete if not required.
		B.	Seismic Performance: Comply with ASCE 7, "Minimum Design Loads for Buildings and Other Structures": Section 9, "Earthquake Loads" based upon seismic design criteria indicated.
		C.	Storage Casework Component Load Capacities:
			1.	Storage Casework Wire-Grille Door Hinge: Each weld capable of resisting 400 lbf (1779 N) pull test without visible damage or permanent deformation.
			2.	Storage Casework Full Grille Door Hinge: Full length door capable of supporting 315 lbs (143 kg). Through open and close cycle without permanent damage.
			3.	Robe and Uniform Storage Casework Garment Hanger Rods: Capable of supporting vertical load applied uniformly along width of unit of 200 lbf (890 N).
		D.	Robe and uniform storage casework with integral bases, adjustable levelers, and through-bolted fastening, enabling owner reconfiguration of unit layout.
	** NOTE TO SPECIFIER ** Delete if not required.
		E.	General: Provide through-ventilating instrument storage casework meeting requirements in System Description and Performance Requirements Articles.
	** NOTE TO SPECIFIER ** Delete if not required.
		F.	General: Provide through-ventilating robe and uniform storage casework meeting requirements in System Description and Performance Requirements Articles.
		G.	Side Panels and Divider Panels: Particleboard thermoset panel with no urea formaldehyde added, 3/4 inch (19 mm) thick. Side panels machined to accept unit-to-unit through-bolting.
	** NOTE TO SPECIFIER ** Select door type(s) below required for project. If more than one type is required by project, indicate extent on drawings. Select open casework for casework without doors. For acoustically enhanced instrument storage casework, retain grille doors. Delete door types and design not required.
		H.	Grille Doors: Bright basic steel wire, 5/16 and 3/16 inch (7.9 and 4.8 mm) diameter, or 5/16 and 1/4 inch (7.9 and 6.3 mm) diameter for AcoustiCabinets, with full 360 degree welds at T-joints.
	** NOTE TO SPECIFIER ** Delete application for grilles not required.
			1.	Provide for instrument storage casework.
			2.	Provide for robe and uniform storage casework.
			3.	Provide for casework indicated.
		I.	Panel Doors: Particleboard thermoset panel with no urea formaldehyde added, 3/4 inch (19 mm) thick.
	** NOTE TO SPECIFIER ** Delete color not required.
			1.	Color: Oyster.
			2.	Color: Maple.
			3.	Color: Pebble.
			4.	Color: Cherry.
			5.	Color: Evening Tigris.
			6.	Color: Fusion Maple.
			7.	Color: Solar Oak.
			8.	Color: As scheduled.
	** NOTE TO SPECIFIER ** Delete application for grilles not required.
			9.	Door Grille: Provide for instrument storage casework, full height.
			10.	Door Grille: Provide for instrument storage casework, compartment height.
			11.	Door Grille: Provide for Robe and Uniform Storage Casework.
			12.	Door Grille: Provide for casework indicated.
		J.	Open Casework: Provide casework without doors.
	** NOTE TO SPECIFIER ** Delete application for grilles not required. Provide for instrument storage casework.
			1.	Provide for robe and uniform storage casework.
			2.	Provide for casework indicated.
		K.	Panel Edge Banding: 3 mm thick, heat-bonded, with radiused and profiled edges and corners.
	** NOTE TO SPECIFIER ** Wenger storage cabinet performance is based upon high strength shelf materials and strong shelf supports capable of surviving the day-to-day abuse of instrument case handling. Wenger's radiused, abuse-resistant shelf design is designed to survive continued impact. Delete shelving not required.
		L.	Shelving: Sized with adequate gap between shelving and casework side panels to allow air movement inside casework.
			1.	Up to 27 inches (686 mm) wide: Removable molded polyethylene shelf, with impact-resistant, radiused front edge, mounted to cabinet wall with self-locking clip.
			2.	Over 27 inches (686 mm) wide: For large instrument casework: Removable formed polyethylene shelf, ribbed, with high-impact-resistant, radiused front edge, supported by steel tube frame.
			3.	Tubular steel supports are included for shelves over 19 inches (483 mm) wide.
			4.	Corner cabinet revolving shelving: 0.053 inch (1.3 mm) min. thickness steel sheet bolted to revolving steel center post, with radiused hardboard deflector panel.
	** NOTE TO SPECIFIER ** Retain optional paragraphs below if required for projects that include Corner cabinet. Delete if not required.
		M.	Flag Storage and Garment Ring: 5/16 inch (8 mm) diameter steel rod bolted to steel center post with 10 gauge steel brackets.
		N.	Flag Storage Bottom Shelf Pad: Carpet pad, adhered to steel shelf.
		O.	Casework Panel Color: As selected by Architect from manufacturer's standard colors.
	** NOTE TO SPECIFIER ** Optional accessory. Delete if not required.
		P.	Filler Panels and Closure: 3/4 inch (19 mm) thick particleboard thermoset panels with no urea formaldehyde in Oyster color. Provide the following, cut to fit field conditions, where indicated:
	** NOTE TO SPECIFIER ** Delete filler not required.
			1.	Wall filler between cabinet side and wall.
			2.	Top filler between cabinet top and wall.
			3.	Top of cabinet closure panel between cabinet and finished ceiling or soffits.
			4.	Finished back panel for exposed cabinet backs.
	** NOTE TO SPECIFIER ** Hinge and latch performance on Wenger casework is achieved with the through-bolting of Wenger's institutional grade hardware. Substitute surface mounted hinges are less expensive but are a frequent point of failure in casework installed in high abuse areas.
		Q.	Butt Hinges: 2-3/4 inches (70 mm), 5-knuckle steel hinges made from 0.090 inch (2.29 mm) thick metal, ANSI/BHMA A156.9, Grade 1, with powder-coated finish, through-bolted to door and side panels and welded to grille door frames. Provide 2 hinges on compartment doors, and 4 hinges on full-height doors.
		R.	Slide Latch: 0.105 inch (2.67 mm) min. thickness steel, with padlock eye, powder-coat finish, through-bolted to panel door and side panel and welded to grille door frames. Latches securely without padlock. Provide with clear plastic label holder for use with standard size labels; number system available for user to print. Padlocks furnished by Owner.
		S.	Panel Connectors: 1/4 - 20 by 1.77 inch (45 mm) panel connectors, with steel thread inserts, powder coated to match panels.
		T.	Cabinet Levelers: Leveling glides with 3/8 inch (9.5 mm) diameter threaded steel rod in steel corner brackets, minimum two each per cabinet side, accessible from within unit, and concealed in completed installation.
		U.	Carcass joinery includes lag screws powder coated to match substrate.
		V.	Back panel 7/32 inch (5.6 mm) reinforced with 3/4 inch (19 mm) stretchers panels held in a dado groove and lag screwed in place.
	** NOTE TO SPECIFIER ** Retain option for load capacity for expansion anchors below where required for structural fastening to meet project seismic design requirements and where required by substrate. Delete if not required.
		W.	Fasteners: Manufacturer-recommended fasteners as required for casework substrate and project performance requirements, consisting of one or more of the following:
			1.	Sheet Metal Screws: SAE J78, corrosion-resistant-coated, self-drilling, self-tapping steel drill screws.
			2.	Wood Screws: ASME B18.6.1.
			3.	Expansion Anchors in Concrete and Concrete Masonry Units: Carbon-steel, zinc plated.
			4.	Hardware supplied to anchor the cabinets to the wall and to adjacent casework.
		X.	Finish: Steel Sheet, Steel Wire, and Exposed Fasteners. Urethane-based electrostatic powder coating, color as indicated. Refer to Drawings.
		Y.	Materials Meeting Sustainable Design Requirements:
			1.	No Added Urea Formaldehyde Products: Provide music education storage casework made with composite products and adhesives with no urea formaldehyde added.
			2.	FSC Certified Wood Products: Provide music education storage casework made with wood from certified sources. Also available in Moisture Resistant, Class 1 Fire rated and Plywood cores.
		Z.	Particleboard: ANSI A208.1, minimum 43 lb/cu. ft. (689 kg/cu. m) density, composite products and adhesives, with no urea formaldehyde added.
		AA.	Fire Rated Particle Board: ANSI A208.1, minimum 45 lb/cu. ft. (720 kg/cu. m) density ASTM E-84 class 1.
		AB.	Plywood: APA standards PS1-98 section 5.7.4 or 5.7.1 or ANSI /HPVA HP-1-2004 Panel provide with HDF skins to prevent grain telegraphing.
	** NOTE TO SPECIFIER ** Retain either above or below paragraphs. Retain below for projects seeking LEED certification; confirm that manufacturer(s) are able to meet requirements. Below may increase costs. The strength and long-term performance of Wenger casework is based on the quality of Wenger's shelf design and the performance of the polyester surfacing material use in the thermoset panels. Melamine facing is not a comparable finish to the high-strength finish on Wenger thermoset panels. NEMA LD 3 standard includes a battery of durability-related tests. Test data is available from Wenger upon request.
		AC.	Particleboard Thermoset Panels: Particleboard finished with thermally-fused polyester surfacing on both sides meeting performance properties of NEMA LD 3 for VGS grade, edge-banded, including the following:
			1.	Surface Abrasion Resistance: Taber Wheel, 400 cycles, for solid colors.
	** NOTE TO SPECIFIER ** Retain paragraph below for projects that include Wenger Sheet Music Storage Casework.
		AD.	Particleboard Thermoset Panels: Particleboard panel with no formaldehyde added 3/4 inch (19 mm) thick finished with thermally-fused polyester surfacing on both sides meeting performance requirements of NEMA LD 3 for VGS grade, edge-banded, including the following:
			1.	Surface Abrasion Resistance: Taber Wheel, 400 cycles, for solid colors.
	** NOTE TO SPECIFIER ** Wenger utilizes a patented shelf design that is highly impact and abrasion resistant, formed to protect instrument cases from abrasion, and is designed to deflect rather than transfer abusive overloading to the casework. This eliminates the need for expensive on-site repairs. Wenger will replace failed shelves without charge for the life of the installation.
		AE.	Polyethylene Shelves: High-density, one-piece, blow-molded or polyethylene, with radiused front edge, for abuse-resistant shelves. Same color throughout will not show scratches.
		AF.	PVC Edge Banding: Radiused PVC extrusions, 1/8 inch (3 mm) thick.
	** NOTE TO SPECIFIER ** Retain article below and edit as required for projects that include sheet music storage casework. Wenger Music Library System is a high-density storage solution providing easy organization and access to sheet music collections while reducing required storage area square footage. Delete if not required.
	2.15	MUSIC LIBRARY SYSTEM
	** NOTE TO SPECIFIER ** Wenger's high-density music storage units described below provide a minimum of 19 cu. ft. of storage capacity per 5.3 sq. ft. of floor area for a seven-shelf unit. This enables savings in space planning for music area storage. Coordinate flooring selection at wheeled sheet music storage casework location consistent with casework and flooring manufacturer's recommendations. Due to wheel loads when fully loaded, these units perform best on hard surfaced flooring and on some high-density carpets without cushion.
		A.	Basis of Design: Music Library System as manufactured by Wenger Corporation.
	** NOTE TO SPECIFIER ** Delete types not required.
			1.	Standard Width 7-Shelf Unit: 173G700 S, 16 inches (41 cm) wide; 12 inches x 34-1/2 inches x 10-1/2 inches (30 x 88 x 27 cm) of shelf space available; 4 shelves adjustable, 3 shelves fixed.
			2.	Oversized Width 7-Shelf Unit: 173G700 O, 19 inches (48 cm) wide; 15 inches x 34-1/2 inches x 10-1/2 inches (38 x 88 x 27 cm) of shelf space available; 4 shelves adjustable, 3 shelves fixed.
			3.	Standard Width 6-Shelf Unit: 173G600 S, 16 inches (41 cm) wide; 12 inches x 34-1/2 inches x 10-1/2 inches (30 x 88 x 27 cm) of shelf space available; 4 shelves adjustable, 2 shelves fixed.
			4.	Oversized Width 6-Shelf Unit: 173G600 O; 19 inches (48 cm) wide; 15 inches x 34-1/2 inches x 10-1/2 inches (38 x 88 x 27 cm) of shelf space available; 4 shelves adjustable, 2 shelves fixed.
		B.	Design and Construction:
			1.	Pull-out design, equally spaced shelves provide 10-1/2 inches (27 cm) of available height per shelf.
			2.	Units are constructed of 3/4 inch (19 mm) thick industrial grade composite wood with no added formaldehyde and polyester laminate finish in Wenger standard colors.
			3.	Shelves are reinforced with an aluminum extrusion that includes a slot with vinyl material for labeling with dry-erase markers.
			4.	Frame is 16-gauge, 1 inch (2.54 cm) square tubular steel, painted black.
			5.	Back panel is designed to fit on either side of unit for left or right hand use.
			6.	Includes four 8 inch (20 cm) diameter casters.
			7.	Each unit contains bumpers for control of side and outward movement.
			8.	Unit requires anchoring to floor and wall.
			9.	Each shelf rated at 100 lbs. (45 kg) maximum capacity.
			10.	Ten-year warranty.
	** NOTE TO SPECIFIER ** The next three items are optional, delete if not required.
			11.	Top closure, constructed particleboard that matches the end covers, supports up to 50 lb/lin.ft. (74 kg/m) loading.
			12.	Oblique file system accessory on standard 12 inch (30 cm) shelf widths.
			13.	Lock option (padlocks not included).
		C.	Substrate and Loading: Verify substrate is concrete or epoxy coated concrete; not recommended for installation on padded carpet or vinyl flooring.
	** NOTE TO SPECIFIER ** Delete loading not applicable.
			1.	Floor point load for a 7-shelf unit at rated load is 800 psi (5516 kpa) per caster.
			2.	Floor point load for a 6-shelf unit at rated load is 700 psi (4826 kpa) per caster.
		D.	Sustainability: GREENGUARD Indoor Air Quality Certified and GREENGUARD Children and Schools Certified.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.16	FIXED THEATER MAKE-UP STATIONS
		A.	Basis of Design: Studio Make-Up Stations as manufactured by Wenger Corporation. Wall-mounted casework unit with countertop, shelf, mirror, electrical convenience outlet, and make up lights (light bulbs not supplied).
	** NOTE TO SPECIFIER ** Select unit dimension below or delete if indicated on drawings. Dimensions shown are outside to outside of light protection cages. See Wenger product literature.
		B.	Size: Nominal 36 inch (910 mm) wide model: 40-3/8-inch wide by 20-inch deep by 44-inch high (1030 mm by 510 mm by 1120 mm).
		C.	Size: Nominal 30 inch (76 cm) wide model: 34-3/8-inch wide by 20-inch deep 44-inch high (870 mm by 510 mm by 1120 mm).
		D.	Size: As indicated on Drawings.
		E.	Countertop: Thermoset panel, 1 inch (25 mm) thick, concave shape.
		F.	Overhead Shelf: Thermoset panel.
			1.	Size: 12-inches (305-mm) deep by width of casework.
		G.	Mirror: 28 inch (711 mm) by 8 inches (203 mm) less than nominal unit width.
			1.	ASTM C 1503, clear glass, mirror glazing quality, with steel laminated backing.
	** NOTE TO SPECIFIER ** Tackboard is provided for the 36-inch wide model only; and may be mounted top, side or bottom. Delete if not required.
		H.	Tackboard:
			1.	Size: 6-inch wide by 28-inch long (152-mm wide by 711-mm long).
	** NOTE TO SPECIFIER ** Delete mounting not required.
			2.	Mounting: Top.
			3.	Mounting: Side.
			4.	Mounting: Bottom.
		I.	Electrical Wiring: 3-wire, 24-inch (610-mm) electrical pigtail below the countertop prepared for hard wiring to building electrical service.
	** NOTE TO SPECIFIER ** Delete power not required.
			1.	Power: 115 VAC single phase.
			2.	Power: 250 VAC single phase (European).
			3.	Light switch: Rocker switch controlling make up lights.
			4.	GFCI convenience receptacle, 20A. (Domestic Only).
		J.	Make Up Lights:
	** NOTE TO SPECIFIER ** Delete lamp bases not required.
			1.	Lamp Bases: Medium (one-inch) Edison-base accepting maximum 60W incandescent or 15W swirl fluorescent lamps. Lamps to be provided by others.
			2.	Lamp Bases: Medium Edison-base accepting maximum 60W incandescent or 15W swirl fluorescent lamps. Lamps to be provided by others.
			3.	Lamp Bases: 27mm EU lamp bases.
	** NOTE TO SPECIFIER ** Select first paragraph below for 36-inch wide unit; select second paragraph for 30-inch wide unit. Adjacent units share the middle bank of make-up lights.
			4.	Lamp Base Quantity: 9 for free-standing units; 6 for paired units.
			5.	Lamp Base Quantity: 8 for free-standing units; 5 for paired units.
			6.	Protective Cages: Wire cages, 3/16 inch (5 mm) diameter steel wire, configured to allow changing of lamps without removing cage.
		K.	Fiberboard: ANSI A208.2, Grade LD or MD.
		L.	Thermoset Panels: Fiberboard finished with thermally-fused PVC with melamine backer, with the following characteristics:
			1.	Surface Abrasion Resistance: Taber Wheel, 400 cycles.
		M.	Accessories:
	** NOTE TO SPECIFIER ** Retain applicable optional features listed in paragraphs below. Select either storage cage or pull-out tray.
			1.	Storage Cage: Under-counter storage cage.
			2.	Pull Out Drawer: Under-counter lockable sliding drawer.
			3.	Tack Pad: White tackable surface in a matte white frame mounted on mirror.
		N.	Hardware:
			1.	Mounting Bracket: Individual mounting bracket with multiple holes and adjustable vertical slots for leveling between units in multiple unit installation.
		O.	Finishes:
			1.	Steel Sheet, Steel Wire, and Exposed Fasteners: Urethane-based electrostatic powder coating.
				a.	Mirror surround and corner accent panel color: White.
	** NOTE TO SPECIFIER ** Portable theater makeup case equipment. Delete if not required.
	2.17	PORTABLE THEATER MAKE-UP STATIONS
		A.	Basis or Design: Backstage Portable Make-Up Stations as manufactured by Wenger Corporation Equipped with convenience handle, head and shoulders mirror, make up lights, electrical receptacle, and electrical power cord (light bulbs not supplied).
			1.	Size: 33 inches wide by 9-3/8 inches deep by 33-1/4 inches high (840 mm wide by 240 mm deep by 850 mm high).
			2.	Framing: Steel frame with aluminum trim.
			3.	Weight: 38 lb (17.2 kg).
			4.	Base: Four rubber feet.
			5.	Lamp Bases: Six bases accepting 60-watt incandescent or 15-watt fluorescent lamps, with switch. Lamps to be provided by others.
			6.	Wiring: 10-foot (3048-mm), 12 ga. wire with plug end.
			7.	Convenience Outlet: GFCI receptacle.
			8.	Case Finish: Matte white.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.18	METAL SHELVING SYSTEMS
	** NOTE TO SPECIFIER ** Wenger's GearBoss wall and floor mounted metal storage shelving system is part of the GearBoss family of durable athletic specialties and equipment. GearBoss provides rugged industrial grade athletic apparel and equipment storage, featuring adjustable cantilevered shelving and apparel hangers, work surfaces, and security lockers. Uprights and shelf brackets are capable of 1000 lb (454 kg) loading per 4-foot-wide section. The clear space below the upper shelving can be coordinated with Wenger's GearBoss SportCart for efficient use of floor space. GearBoss is an equipment storage solution designed to transform the athletic equipment room into an efficient, program support space that reduces the square footage required for athletic storage areas. The modular system features accessories specific for the needs of bulky athletic equipment such as helmets and shoulder pads. GearBoss units are designed to encourage airflow along with improving sanitation and odor issues. Delete if not required.
		A.	GearBoss Metal Shelving Systems, Shelf Starter Bay, Shelf Add-On Bay, and Shelves by Wenger Corporation: Cantilever-type modular metal storage shelving system comprised of the following components:
			1.	Structural Performance:
				a.	Allowable Load Rating: 1000 lb. (373 kg) per 4 by 8-foot (1219 by 2438-mm) bay.
				b.	Load-Carrying Capacity per 48 inch (1219 mm) Shelf: 250 lb. (113 kg).
			2.	Shelf Unit Uprights: Steel tube, metallic-coated, 2-inch (50.8 mm) square, 0.109-inch (2.76 mm) thick, with perforations on all four sides at 1 inch (25 mm) on center.
			3.	Horizontal Stringer: Formed sheet steel, metallic-coated, 0.075-inch (1.9-mm) thick.
			4.	Shelf Cross Tubes: 14 gauge steel tube, metallic-coated, 5/8-inch (22-mm) square.
			5.	Shelf Brackets: Formed steel, 0.015-inch (0.38-mm) thick.
			6.	Laminate-Clad Wood Panels: Core material and thickness indicated, finished with thermally-fused anti-microbial polyester surfacing on both sides.
			7.	Unit Width: 48 inch (1219 mm) center-to-center unless otherwise indicated.
	** NOTE TO SPECIFIER ** Select height. Delete options not required.
			8.	Unit Height: 96 inches (2438 mm).
			9.	Unit Height: As indicated on the Drawings.
			10.	Shelves can be adjusted in 1 inch (25 mm) increment without tools.
	** NOTE TO SPECIFIER ** Typically retain all materials.
		B.	Metal Shelving Materials:
			1.	Aluminum Extruded Bars, Profiles, and Tubes: ASTM B221.
			2.	Sheet Steel: Cold-rolled, ASTM A1008, commercial steel, type B.
			3.	Steel Tube: ASTM A501, hot-formed steel tubing.
			4.	Steel Wire: ASTM C510, cold drawn steel wire.
			5.	Particleboard: To ANSI A208.1, minimum 43 lb/cu. ft. (689 kg/cu. m) density.
				a.	Provide fire retardant treated type.
			6.	Plywood: APA standards PS1-98 section 5.7.4 or 5.7.1 or ANSI /HPVA HP-1-2004 Panel provide with HDF skins to prevent grain telegraphing.
			7.	Steel Tube: ASTM A500, cold-formed steel tubing.
			8.	Laminate Finish: Composite, of thickness indicated, finished with thermally-fused anti-microbial polyester surfacing on both sides, meeting performance properties of NEMA LD3 for VGS grade, with heat bonded, radiused, 3 mm thick extruded PVC edge banding.
				a.	Surface Abrasion Resistance: Taber Wheel, 400 cycles, for solid colors.
			9.	PVC Edge Banding: LMA EDG-1, radiused PVC extrusions, 3 mm thick, heat-bonded.
			10.	Anchors and Fasteners:
				a.	Factory Provided: Material, type, and size recommended by manufacturer for secure anchorage to substrate.
				b.	Field Installed: Manufacturer-recommended fasteners furnished by Contractor as required for locker substrate and project requirements.
		C.	Metal Shelving Fabrication:
			1.	Fabricate components square, and rigid. Make exposed metal safe to touch and free of sharp ends or burrs.
			2.	Form frames, panels, doors, and accessories from one-piece, or one rigid assembly, unless specifically shown on Shop Drawings.
			3.	Factory preassemble metal components by welding all joints, and connections; with no bolts, nuts, screws, or rivets used in assembly, except as required for knock down shipping and attachment to mounting surfaces.
		D.	Metal Shelving Accessories:
	** NOTE TO SPECIFIER ** Retain one or both options.
			1.	Shelf Depth: 17.5 inches (444 mm) with 2 cross tubes.
			2.	Shelf Depth: 30.5 inches (775 mm) with 4 cross tubes.
	** NOTE TO SPECIFIER ** Select accessories to be provided. Delete accessories not required.
			3.	Lock Box: Steel sides and bottom, polished aluminum front, key-tab lock, hinged door panel lockable with a key.
			4.	Work Surface: Particleboard laminate-clad panel with graphite high wear laminate with black edge band, 1-1/8-inch (28.6-mm) thick, inserted into 30-1/2 inch (775 mm) cantilever shelf bracket over cross tubes. Quantity of work surfaces as indicated on Drawings.
			5.	Cantilevered Shelf: Steel tube and bracket, with aluminum extrusion nosing, mill finish unless otherwise indicated.
			6.	Hinged Panel Doors: Laminate clad panel door 5/8-inch (15.9 mm) thick.
			7.	Garment Hanger: Steel round tube mounts underneath shelf; powder-coat finish, black. Quantity of garment bars as indicated on Drawings.
			8.	Drawer: Pull-out utility drawer mounted under work surface.
		E.	Metal Shelving Finishes: Manufacturer's standard finish, color as selected by Architect from manufacturer's standard colors.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.19	MODULAR SOUND-ISOLATION PRACTICE ROOMS
	** NOTE TO SPECIFIER ** Wenger sound-isolation practice rooms are true factory fabricated units. Site-fabricated rooms, and rooms with site-installed gaskets do not provide the same level of acoustical isolation performance over their service life.
		A.	Basis of Design: SoundLok Sound-Isolating Practice Rooms as manufactured by Wenger Corporation. Factory-fabricated, modular, sound-isolation enclosures with sound transmission characteristics meeting requirements. Enclosures shall be internally wired for power, lighting, and ventilation controls. Site-fabricated enclosures and enclosures with site-installed gaskets and sealants shall not be allowed. Modifications to room on site affect acoustical performance and laboratory test data.
			1.	Rooms shall be assembled from factory-gasketed modular components that allow reconfiguration and relocation without component modification or loss of acoustical performance.
	** NOTE TO SPECIFIER ** Delete interior room height not required.
			2.	Interior Room Height: 7 feet 6 inches (2260 mm).
			3.	Interior Room Height: 8 feet 0 inches (2438 mm).
			4.	Interior Room Height: 8 feet 6 inches (2591 mm).
			5.	Interior Room Height: 9 feet 0 inches (2743 mm).
			6.	Interior Room Height: 9 feet 6 inches (2896 mm).
			7.	Interior Room Height: 10 feet 0 inches (3048 mm).
	** NOTE TO SPECIFIER ** Retain the paragraph below if work includes Sound-Isolation Practice Rooms with VAE Technology, or with components that allow rooms to be upgraded with the VAE technology in the future.
		B.	Room Variation: Sound-isolation practice rooms (with VAE) shall be equipped with manufacturer's Virtual Acoustical Environment (VAE) simulation system with integrated wiring, speakers, and microphones capable of providing room sonic environment simulation of a range in preset and customized practice and performance environments.
		C.	Room Variation: Sound-isolation practice rooms (upgradeable to VAE) shall be equipped with integrated and wiring, raceways, panel cutouts for speakers and microphones, all concealed within wall panels to allow room to be upgraded with the VAE technology system in the future. No external mounted wiring, raceways, speakers, or microphones allowed.
		D.	Room Variation: Sound-isolation practice rooms (non-upgradeable to VAE) shall be standard room that does NOT have the ability to be upgraded to the VAE technology system.
		E.	Airborne Noise Reduction: Sound-isolation practice rooms with 410 cu. ft. (11.6 cu. m) interior volume, 34 percent perforated interior panels, 12 inch (304 mm) airspace between modules, mounted on concrete floor construction, tested as follows:
			1.	NIC 41 from exterior to interior of module, per independent lab test.
			2.	NIC 63 from interior of one module to interior of adjacent module, with 12 inches (304 mm) airspace between modules, per independent lab test.
		F.	Ambient Noise at Center of sound-isolation room: Lighting and ventilating systems operating, per ANSI S 12.2: Not exceeding NC 25.
		G.	Reverberation Time: Sound-Isolation Practice Rooms with 640 cu. ft. (18.12 cu. m) interior volume: in contiguous octave bands, center frequencies from 125 to 4000 Hz, per ASTM C 423: 0.45 plus or minus 0.10 seconds.
	** NOTE TO SPECIFIER ** Retain below when specifying manufacturer's integrated fan system as part of manufactured room; delete when HVAC system design is by project HVAC Engineer. Ensure that project HVAC engineer provides adequate air to room based upon manufacturer's recommendations. ACR below is based on Wenger 6 feet - 8 inches by 9 feet - 5 inches (2032 mm by 2870 mm) Practice Room. Consult manufacturer's literature for other spaces and occupancies.
		H.	Ventilation Air Change Rate: Sound-isolation practice rooms with 406 cu. ft. (11.5 cu. m) interior volume shall have 35 air changes per hour. Other rooms will vary according to size and occupancy.
		I.	Sound-Isolating Door Sound Transmission Class: With full window, per internal testing only: STC 46.
	** NOTE TO SPECIFIER ** Below relates to Wenger's integrated fan system. Delete below when HVAC ceiling panel is not used on project.
		J.	HVAC Ceiling Panel Sound Transmission Class: Per internal testing only: STC 45.
		K.	Safety Glazing Products: 16 CFR 1201.
	** NOTE TO SPECIFIER ** Below relates to contractor requirement for securing architectural components to building structure. Verify seismic performance requirements of authorities having jurisdiction. Consult project structural engineer. When required, retain below plus retain related Submittals requirement and Part 3 seismic bracing requirements. Delete if not required.
		L.	Seismic Performance: Comply with ASCE 7, "Minimum Design Loads for Buildings and Other Structures": Section 9, "Earthquake Loads" based upon seismic design criteria indicated.
		M.	Wall Frame: 14-gauge/0.075 inch (1.91 mm) thick steel channel with 1-1/4 inch (31.75 mm) thick factory-applied acoustical gasketing at floor slab, with 3/4 inch (19 mm) leveling adjustment.
		N.	Wall Panels: 30 inches by 4 inches (762 by 102 mm) thick composite panels, consisting of an exterior face of 16-gauge/0.0598 inch (1.52 mm) sheet steel, an interior face of 22-gauge/0.0299 inch (0.76 mm) perforated or solid sheet steel, with sound-attenuation material at panels indicated as perforated.
			1.	Acoustical Seal: Two continuous acoustical gaskets factory-mounted at panel perimeter.
			2.	Panel Attachment: Two or more mechanical locks on each vertical edge to align and engage adjoining panel and create compression seal between panels.
			3.	Corner Assembly: Same construction as wall panels.
			4.	Power Panel (one per unit): Same construction as wall panels, with factory pre-wiring meeting ETL and NEC requirements, consisting of conduit, wiring, junction and electrical boxes, and airtight cover plates, and including the following:
				a.	Two duplex receptacles.
				b.	Dimmable switches, occupancy sensors and connectors for lighting control (and fans, and VAE, as required).
				c.	Three empty raceways for future Owner-installed circuitry.
	** NOTE TO SPECIFIER ** Acoustic Vision Lite Wall Panel is optional addition to standard practice room. Retain paragraph below and indicate location on drawings if required. Delete if not required.
			5.	Acoustic Vision Lite Wall Panel: Same construction as wall panels, 30 inches (762 mm) wide, with nominal 26.5 by 65.5 inches (673 by 1664 mm) vision lite, respectively, consisting of 1/4 and 3/8 inch (6.0 and 9.5 mm) thick laminated safety glass with 3 inches (76 mm) interspace, mounted in metal frame. Refer to Drawings for location.
	** NOTE TO SPECIFIER ** Delete if not required.
				a.	Provide one-way vision safety glass. Refer to Drawings for location.
	** NOTE TO SPECIFIER ** Delete if not required.
			6.	Horizontal Window, 90 degrees wide (2286mm), with nominal 32 inches x 81-3/4 inches (813mm x 2076mm) vision lite.
			7.	Horizontal Window, 60 degrees (1524mm) wide, with nominal 32 inches x 51-3/4 inches (813mm x 1314mm) vision lite.
	** NOTE TO SPECIFIER ** Communication Wall Panels are optional addition to standard practice room allowing for installation of Owner's current or future telephone, data, fire alarm, and additional power outlets. Retain paragraph below and indicate location on drawings if required.
			8.	Communication Wall Panels: Where indicated: Same construction as wall panels, size and configuration indicated, with factory installed rough-in for addition wiring by owner, consisting of conduit, junction boxes, and airtight cover plates, and includes one pre-wired quad outlet.
		O.	Ceiling Frame: Sheet steel, 16-gauge/0.053 inch (1.34 mm) thick, with clamping mechanism for compressing ceiling panel acoustical gaskets, with external support beam where required by room size.
		P.	Ceiling Panels: Same construction as wall panels, 15 inches wide by 6 inches thick (381 mm wide by 152 mm thick), with the following characteristics:
			1.	Acoustical Seal: Two continuous acoustical gaskets factory mounted at panel perimeter.
			2.	Panel Attachment: Two mechanical locks on each vertical edge to align and engage adjoining panel and create compression seal between panels.
			3.	Sprinkler Ceiling Panels: Where indicated, panels fabricated with predrilled holes to enable fire sprinkler system installation specified elsewhere. Furnish covers for installations not requiring sprinkler piping penetration.
			4.	Light Panels: Where indicated, highly efficient, 50/60Hz, 100-277 Volt AC, 40 Watt, 1'x 4' dimmable edge-lit LED flat panels. Technical information; power factor: 0.9, lifetime (L70): 50,000 hours, LED chip type: 2835, number of LEDs (per panel): 216, physical dimensions: 11.83 inches (W) x 47.63 inches (L) x 0.39 inches (H), color temperature: 5000k (standard), lumens: 4200, beam angle: 120 degrees, RA value: 80, compatible with 0-10V dimmers. Compliance and approvals: ETL, FCC, DLC QPL, IP rating: damp locations.
		Q.	Doors: 2 inches (51 mm) thick composite panel, consisting of an exterior face of 16-gauge/0.053 inch (1.34 mm) sheet steel, an interior face of 14-gauge/0.068 inch- (1.72 mm-) sheet steel, and a core of sound-attenuation material, sound transmission class (STC) 46 (based on internal testing), size and swing as indicated on Drawings, and as follows:
			1.	Acoustical Seals: Magnetic seal plus compression seal at head and jambs, and adjustable sweep seal at door bottom.
			2.	Hinge: Cam-type wrap around continuous barrel hinge, CR 1010 steel.
	** NOTE TO SPECIFIER ** Delete door size not required.
			3.	Door size: 3 feet (914 mm) wide standard.
			4.	Door size: 4 feet (1219 mm) wide.
			5.	Door size: 6 feet (1829 mm) wide double door with removable mullion.
			6.	Door Vision Lite: Nominal 22 by 66 inches (559 by 1676 mm), glazed with safety glass.
	** NOTE TO SPECIFIER ** Delete if not required.
				a.	Provide one-way vision safety glass. Refer to drawings for location.
			7.	Metal threshold: Stainless steel, 1/2 inch (12.7 mm) high.
			8.	Lockset: ANSI/BHMA A156.2, Series 4000, Grade 1, cylindrical lock with lever handle, 6 pin cylinder, classroom function locking, satin nickel finish.
	** NOTE TO SPECIFIER ** Delete key cylinder not required.
			9.	Keying: Each keyed differently.
			10.	Keying: Interchangeable core, with cylinder specified in Section 08 71 53 - Security Door Hardware.
	** NOTE TO SPECIFIER ** Retain optional paragraph below when sound-isolating room includes acoustic simulation system. Description below conforms to Wenger's VAE system; consult with manufacturer for specific recommendations and availability.
		R.	Virtual Acoustical Environment (VAE) System: Manufacturer's standard electronic sound system providing integrated record and playback capabilities, with nine virtual acoustical simulations within sound-isolating room, including:
			1.	Eight speakers mounted in pre-wired corner panel speaker enclosures.
			2.	Push-button operated control panel with associated electronic components.
			3.	Microphone Wall Panel: Same construction as solid wall panels, with two integrated microphone mounts and two microphones.
			4.	Systems using non-integrated components or external reverberation/special effects components are not acceptable.
	** NOTE TO SPECIFIER ** Select one of following two paragraphs and subparagraphs. First paragraph and subparagraphs below are for rooms utilizing manufacturer's built-in fan system. Second paragraph and subparagraphs below are for optional direct connection to building HVAC system.
		S.	Ceiling Ventilation System: Provide manufacturer's, built-in fan standard free-standing room ventilation system:
			1.	Vent Panels: 15 inches (381 mm) wide by 6 inches (152 mm) thick panel with integral acoustical air plenum, with 1-1/2 inches (38 mm) sound-absorbing duct liner and four 90-degree bends.
			2.	Fan Exhaust Panels: 120 cfm (0.057 cu. m/s) exhaust fan mounted in panel with same construction panel as vent intake panel. Number of fan panels equal to number of vent panels. Fan exhausts to surrounding space.
		T.	Ceiling Ventilation System, Connection to Building HVAC System:
			1.	Vent Panels: 15 inch (381 mm) wide by 6-inch (152 mm) thick panel with integral acoustical air plenum, with 1-1/2 inch (38 mm) sound-absorbing duct liner and four 90-degree bends, with 8 inch (203 mm) diameter duct connector. Capacity: 120 cfm (.057 cu. m/s) maximum per vent panel. Configured in pairs of intake and exhaust panels as indicated. Flexible ductwork specified in mechanical section and provided by others.
		U.	Closure Panels: Provide vertical and horizontal closures between modules and above modules to close off space visually. Constructed of 3/4 inch (19 mm) thick composite wood with low-pressure thermofused laminates.
	** NOTE TO SPECIFIER ** Delete colors not required.
			1.	Color: Oyster.
			2.	Color: Vanilla.
			3.	Color: Warm Sand.
	** NOTE TO SPECIFIER ** Standard Wenger practice room is furnished for direct mounting to concrete slab floor. Floor Component System in paragraph below is an available option. Delete if not required.
		V.	Floor Component System: Where indicated: Sheet vinyl flooring bonded to high density 1-1/8 inches (22 mm) thick particleboard, supported by steel under structure, with 1-1/2 inches (38 mm) sound-absorbing vibration isolators, supported on 6-1/4 Hz natural frequency vibration isolators with 1/4 inches (6 mm) maximum deflection under typical loading, joined by mechanical fasteners and aligned by interlocking steel support clips. Floor fabricated for installation inside finished practice room without disassembly of modules.
	** NOTE TO SPECIFIER ** Delete accessories not required.
		W.	Mirror: Mounts directly to interior solid wall panel. Metal mounting brackets in black painted finish are provided. Dimensions: 58 inches (1473 mm) high x 22 inches (559 mm) wide with 1/4 inch (6 mm) thick mirror glass, constructed with vinyl backing to prevent shattering of glass.
		X.	Metronome/Tuner: Mounts directly to interior solid wall panel and houses battery-operated metronome/tuner, Korg Model TM40. Mounting bracket included. Overall dimensions: 4-3/4 inches (121 mm) wide x 4-3/4 inches (121 mm) high x 1 inch (25 mm) thick.
		Y.	Steel Sheet: Cold-rolled, ASTM A 1008/A 1008M, commercial steel, Type B.
		Z.	Sound Attenuation Material: ASTM C 665, Type I, 1.5-lb/cu. ft (24 kg/cu. m).
		AA.	Finish for Electrical Cover Plates:
			1.	Light, Fan and VAE Switch (as required): Satin chrome finish.
			2.	All other: Painted to match wall panel colors.
		AB.	Finishes for Other Exposed Components: Iron phosphate pre-coat and thermo-set epoxy resin powder coat (baked) finish.
			1.	Colors:
	** NOTE TO SPECIFIER ** Delete wall and ceiling panel color not required.
				a.	Wall and ceiling panels: Oyster.
				b.	Wall and ceiling panels: Vanilla.
				c.	Wall and ceiling panels: Warm Sand.
	** NOTE TO SPECIFIER ** Delete floor rail and door color not required.
				d.	Floor rail and door: Charcoal Grey.
				e.	Floor rail and door: Warm Beige.
	** NOTE TO SPECIFIER ** This all-in-one mobile performance system is suitable for usage for all outdoor performance events. The trailer design allows for transport to and use at any outdoor and even some indoor locations. In performance position, the mobile stage features a full-scale, thrust-style stage, state-of-the-art acoustical shell and cantilevered roof and canopy. The professional appearance makes this mobile stage appropriate for a complete range of events from ribbon-cutting ceremonies to full, symphony orchestra concerts. Delete if not required.
	2.20	MOBILE PERFORMANCE SYSTEM
		A.	Basis of Design: Showmobile as manufactured by Wenger Corporation.
		B.	Dimensions (Nominal):
			1.	Travel Mode Dimensions (Nominal):
				a.	Body Length: 28'-0" (8.53 m).
				b.	Width: 8'-5" (2.56 m).
				c.	Height: 13'-2" (4.01 m).
				d.	Tongue Height: 22 inches (55.8 cm).
			2.	Performance Mode Dimensions (Nominal):
				a.	Stage Performance Dimensions:
					1)	Main Stage Floor: 28'-0" x 6'-6" (8.53 m x 1.98 m).
					2)	Hydraulic Stage: 28'-0" x 8'-0" (7.31 m x 2.44 m).
					3)	Stage Height from Ground: 42 to 52 inches (107 - 132 cm).
					4)	Back of Wall to Leading Stage Edge: 14'-3" (4.34 m).
					5)	Performance Stage Size: 28'-0" x 14'-6" (8.53 m x 4.42 m).
				b.	Acoustical Shell Interior Performance Dimensions:
					1)	Canopy Height from Stage at Highest Setting: 17'-4" (5.28 m).
					2)	Canopy Height from Ground at Highest Setting: 21'-10" (6.40 m).
					3)	Upstage Canopy Height from Floor: 9'-3" (2.82 m).
					4)	Overall Overhead Roof/Canopy Depth: 13'-2" (4.01 m).
		C.	Weight (Nominal): Gross Vehicle Weight Rating (GVWR) = 16,000 lbs (7257 kg).
		D.	Chassis Construction:
			1.	Structure:
				a.	Constructed of two cold roll formed structural 4 inch x 12 inch x 1/4 inch (10 x 30 x 0.635 cm) carbon steel tubes.
				b.	Cross Members: 14-gauge structural tubes and formed steel channels on 24 inch (61 cm) centers.
				c.	All welded construction to provide unitized body structure.
				d.	Perimeter shall be finished on all sides with steel skirting (rub rail) to provide finished appearance and protect internal components.
			2.	Suspension and Axles:
				a.	Double-axle configuration featuring two rubber-torsion type, each axle rated at 7,200 lbs (3266 kg).
				b.	Torsion axles shall be used to provide the smoothest possible cargo ride, lowest center of gravity, and best road handling.
				c.	Axle hubs shall have grease fittings for easy maintenance and shall be completely hot dip galvanized, inside and out, for weatherability.
				d.	Leaf-spring type axle suspension is unacceptable due to inefficient oscillation time and greater maintenance requirements.
			3.	Tires and Rims: LT 235/85 R16 steel-belted radial tires mounted on 8-bolt rims.
			4.	Brakes:
				a.	Each axle shall have two-sided adjustable 12-volt electric brakes, 12-1/4 x 2-1/2 inches (0.635 x 6.35 cm).
				b.	Hitch-mounted breakaway switch system.
			5.	Stabilization:
				a.	Four manual leveling jacks permanently integrated into the vehicle frame for leveling and stabilization.
				b.	Each jack shall have 10,000 lb (4536 kg) live load capacity.
				c.	Two removable hand cranks.
				d.	Due to the structural integrity of the mobile stage frame, stabilizers mounted in the center of the trailer are not required.
				e.	Externally-mounted, pivoting stabilizers are unacceptable.
			6.	Hitch:
				a.	Trailer hitch shall feature a removable lunette ring.
				b.	Connector for Towing Vehicle: Pintle hook connector.
				c.	Hitch Construction: Structural carbon steel tube.
			7.	Storage Compartments:
				a.	Three large, weather-sealed storage compartments located on the curb side of the mobile stage.
				b.	Compartment doors shall feature two stainless steel locking D-ring handles as well as stainless steel hinge construction.
				c.	Compartments minimum dimensions shall be 54 inches L x 17 inches D x 15 inches H (137 cm L x 43 cm D x 38 cm H).
			8.	Finish:
				a.	All metal surfaces shall be primed with one coat two-component epoxy primer and one coat Sherwin-Williams Polane 8890 polyurethane enamel, a two-component, aliphatic acrylic topcoat.
					1)	Standard auto enamel paint or galvanized finish is not acceptable.
			9.	Electrical System:
				a.	The mobile stage shall be equipped with 12-volt electrical system to power hydraulic stage, hydraulic roof and canopy and breakaway switch operations.
				b.	The power source shall be a heavy-duty deep cycle 12-volt battery located in the front roadside of the mobile stage.
		E.	Panel Construction:
			1.	Curbside Panel: Composite acoustical panel and extruded aluminum edging:
				a.	Wall panel shall be a one-piece, composite structural material, which provides a seamless, weatherproof UV protected, Tedlar exterior surface, as well as a rigid surface for reflecting sound and enhancing the acoustics of musical performances.
				b.	Curbside panel frame shall be constructed of carbon steel welded to chassis to form a unitized body structure.
				c.	Curbside panel shall be surrounded by extruded aluminum fastened to the steel structure and sealed with gasketing.
				d.	Exterior fasteners are not acceptable.
				e.	Minimum Thickness: 1-3/4 inches (4.4 cm).
				f.	Curbside composite panel shall feature internal aluminum structural reinforcement.
					1)	Solid wood-core panels are not acceptable.
			2.	Roof and Canopy Construction: Steel frame, composite acoustical panel and extruded aluminum edging:
				a.	Panels shall be composite, one-piece, lightweight, structural material, to provide a seamless, weatherproof exterior surface as well as a rigid surface for reflecting sound and enhancing the acoustics of musical performances.
				b.	Frame structure shall be one-piece welded carbon steel construction integrally connected to the roof/canopy linkage system.
				c.	Aluminum extrusion shall seal steel frame and composite panel together to create complete, one-piece roof and canopy assemblies.
				d.	Extruded aluminum roof and canopy edges shall meet to form a continuous rain gutter.
				e.	Canvas or membranes used to seal joints between assemblies are not acceptable.
				f.	Minimum Thickness: 1 inch (2.5 cm).
				g.	Roof and canopy composite panels shall feature internal aluminum structural reinforcements.
					1)	Solid wood-core panels are not acceptable.
				h.	Exterior fasteners are not acceptable.
			3.	End Panels: Steel frame, composite acoustical panel and extruded aluminum edging:
				a.	Panels shall be a one-piece, lightweight, composite structural material, to provide a seamless, weatherproof exterior surface as well as a rigid surface for reflecting sound and enhancing the acoustics of musical performances.
				b.	Frame structure shall be one-piece, welded carbon steel hinged to the upright curbside structure.
				c.	End panel shall be recessed inside roof and canopy when in travel position. Extruded aluminum end panel frame shall provide a continuous rain gutter surrounded by gasketing.
				d.	Operating Handle: Recessed, constructed of stainless steel with integral covered, keyed-locking mechanism.
				e.	Latching Mechanism: Holds the end panel closed with three points of contact.
				f.	Hinge: Continuous, end-panel hinge shall be constructed of stainless steel.
				g.	End panel shall be adjustable between its closed position and 270 degrees out of audience view.
				h.	Locking mechanisms shall be provided to secure end panels in various performance and stowed positions.
				i.	Acoustical end panels shall have 3 adjustments, closed to 270 degrees.
		F.	Hydraulic Stage Construction:
			1.	Deck Material: 3/4 inch (1.9 cm) 7-ply Douglas Fir plywood core.
				a.	Traffic Surface: Black, non-skid, 0.015 inches (0.038 cm) thermally fused Quadripple composite overlay embossed with raised textured pattern.
				b.	Backer Material: 0.008 inch (0.0203 cm) thermally fused MDO overlay, functions as moisture barrier.
				c.	Stage deck shall be constructed of economical replaceable components in the event that damage should require decking replacement.
			2.	Structure: Formed steel fabricated into one-piece, unitized system.
				a.	Cross Members: At 24 inches (61 cm) on center, maximum.
			3.	Hardware and Legs:
				a.	Stage hinge and fasteners shall be of stainless steel. Hinge shall be continuous to prevent gaps between main stage and hydraulic stage.
				b.	Five adjustable support legs shall be attached to the leading edge of the hydraulic stage to provide uniform stability and load capacity.
					1)	Fold into position when the hydraulic stage is opened and secure for transport to magnetic catches when closed.
					2)	Leg Tubes: Telspar, adjustable in 1/8 inch (0.3175 cm) increments.
					3)	Feet: 4 x 4 inch (10 x 10 cm).
			4.	Stage Edging: Perimeter of the stage deck shall have an extruded aluminum channel, to accommodate supplementary stage extension platforms as well as stairways, drapery skirting, rail sections, or other optional accessories.
			5.	Tie Downs:
				a.	Eight tie-downs and four tie-down straps shall be provided on the main stage for the secure transport of supplemental stage equipment.
				b.	Tie-downs shall be flush-mounted with D-ring attachment.
		G.	Electrical and Hydraulic Systems:
			1.	Power Center: 110V electrical system capable of operating from regular 110V "household current," enabling operation of the LED lighting, use of the back wall outlets and charging of the 12V-battery:
				a.	The 110V-electrical power shall be distributed through one load center.
				b.	Circuit Breakers: One 30-amp main breaker and three 20-amp breakers.
					1)	The first 20-amp breaker protects the three rows of LED lighting located in the roof and canopy.
					2)	The second 20-amp GFI breaker protects the two duplex outlets located on the inside lower back wall.
					3)	The third 20-amp GFI breaker protects the one duplex outlet located near the 12-volt battery.
				c.	Power Cord: 50 foot (15 m), 10/3 power cord, with a 30-amp twist-lock plug.
				d.	The load center shall be in a compartment located near the hitch end, curbside of the mobile stage.
				e.	A lockable weatherproof door with stainless steel hardware shall enclose the power center and seal the compartment.
				f.	The compartment shall also be able to store the power cord.
			2.	General Lighting: Four rows of LED lighting, one row in overhead canopy and three rows in roof:
				a.	Fixtures: IP65 rated LED strip lighting with over 400 lumen output per foot housed in aluminum channel with clear cover.
				b.	All led strip lighting shall be on one circuit and be 4000K color temperature.
				c.	All trailer indicator lighting is LED (side markers, brakes, license plate).
			3.	Double Articulated Roof/Canopy and Stage Hydraulic Deployment System:
				a.	Hydraulic deployment system shall open and close double articulated roof/canopy as well as raise and lower the hydraulic stage.
				b.	Double articulated roof-canopy must be continuously adjustable from fully open to fully closed to allow for flexibility in presentation.
				c.	Support: Structural steel columns on curbside wall with a dual hydraulic linkage actuation system.
				d.	Roof/Canopy Controls: Two, two-way hydraulic cylinders with solenoid control powered by an on-board 12-volt, DC hydraulic power unit.
				e.	Hydraulic deployment system shall be safety protected by counterbalance and velocity check components.
				f.	Hydraulic Stage Controls: Two, two-way hydraulic cylinders with solenoid control powered by 12-volt, DC hydraulic power unit.
				g.	Dimensions for appropriate acoustical, visual, lighting, and functional benefits:
					1)	Distance from stage to rear of roof in open position: Minimum 9'-2" (2.79 m).
					2)	Distance from stage to roof/canopy pivot point in open position: Minimum 14'-11" (4.55 m).
					3)	Distance from stage to front edge of canopy in open position: Minimum 17'-3" (5.25 m).
					4)	Distance from stage to front edge of light bar in open position: Minimum 17'-9" (5.41 m).
				h.	Roof/Canopy shall open to required dimensions to provide the following:
					1)	Maximum performance space volume, which optimizes performance and audience acoustics.
					2)	Allows the use of choral risers and other performance platforms on-stage, while still maintaining headroom for performers.
					3)	17 x 28 foot (5.2 m x 8.5 m) visual frame with open ends for optimum audience viewing.
					4)	Allows the use of standard size theatrical lighting fixtures along the rear of the roofline without occupying critical headroom for performers.
			4.	Remote-Control Module:
				a.	Removable weatherproof remote-control module with 12 foot (3.6 m) cord shall be provided to operate the roof/canopy and the hydraulic stage.
				b.	Remote-control module shall contain toggle-type switches for opening and closing the roof/canopy, and raising and lowering the hydraulic stage.
				c.	Remote cable shall plug into the front of the mobile stage with a positive lock-type connector.
				d.	Remote-control module shall be keyed for operational security.
	** NOTE TO SPECIFIER ** Delete if hydraulic leveling is not required for project.
				e.	Remote-control module acts as backup to the wireless remote controller for hydraulic leveling.
		H.	Weatherproofing and Finishing:
			1.	Construction: Mating edges of all major assemblies (roof, canopy, curbside panel, end panels) shall have extruded aluminum edges with gasketing.
				a.	Aluminum edges shall provide integral channels which direct water away from the roof of the mobile stage.
			2.	Wall Panels: Composite panels shall provide a seamless exterior surface that is UV protected and impervious to the elements.
				a.	High gloss fiberglass reinforced plastic surface.
			3.	Deck Material:
				a.	Stage decking shall have a treated core.
				b.	Textured surface shall provide a non-skid performance area.
			4.	Fasteners and Hardware: To minimize the effects of corrosive elements and weather, as well as improving overall appearance, exposed fasteners shall be unacceptable on all exterior roof, canopy, and curbside panels.
				a.	All exterior hardware materials shall be stainless steel, plastic or aluminum.
			5.	Coatings: All metal surfaces shall be primed with one coat two-component epoxy primer and one coat Sherwin-Williams Polane 8890 polyurethane enamel, a two-component, aliphatic acrylic topcoat.
				a.	The epoxy primer and polyurethane topcoat create a barrier coat, which prevents moisture reaching any steel parts.
				b.	Paint shall provide high gloss retention for excellent exterior physical and chemical performance properties, excellent hardness and impact resistance and excellent mar and abrasion resistance.
				c.	Finish shall not create a chalky white nor dulled appearance over time (oxidation).
			6.	Colors:
				a.	Exterior Top: Bright white.
				b.	Exterior Bottom: Blackthorn.
				c.	Interior wall and roof/canopy: Bright white.
				d.	Stage Deck: Black.
		I.	Stairway: Adjustable all-terrain stair with handrails.
			1.	Stairway shall incorporate a parallelogram design, which allows for the rise of the steps to increase or decrease compensate for irregularities in ground level.
			2.	Stairway may be positioned anywhere around the hydraulic stage and stage extension perimeters.
			3.	Treads: Extruded aluminum.
			4.	Adjustable height from 37 to 50 inches (94 - 127 cm).
			5.	Meets all applicable safety codes and conditions.
		J.	Support and Background:
			1.	Design shall meet Society of Automotive Engineers (SAE) Standards as well as the Code of Federal Regulations, which includes Department of Transportation (DOT), Federal Motor Vehicle Safety Standards (FMVSS) and Federal Motor Carrier Safety Regulations (FMCSR).
			2.	Product Training: Upon delivery, complete training on operation and maintenance shall be conducted by manufacturers authorized representative.
		K.	Included Options:
	** NOTE TO SPECIFIER ** Delete options not required.
			1.	Hydraulic Leveling System with Wireless Remote and Auto Level Feature:
				a.	Jacks: Four automatic, hydraulic leveling jacks permanently integrated into the vehicle frame for leveling and stabilization.
					1)	Each jack shall have 10,000 lb (4536 kg) live load capacity and a 10 inch (25cm) diameter swiveling stabilization pad
					2)	Jacks shall be powered by the standard 12-volt electrical system, independently controllable, and will position the stage of the mobile stage 40 to 45 inches (102-114 cm) above level ground.
					3)	Each jack shall feature an integrated counterbalance valve safety device.
				b.	Hand-Held Wireless, Remote-Control Unit:
					1)	Operated on a protected FM radio frequency that can only be received by the on-board receiver.
					2)	Powered by a nine-volt battery.
					3)	Receiver Unit: Powered by the 12-volt battery in the mobile stage.
					4)	Auto shut-off feature shall be provided to prevent battery drain.
					5)	Provides independent up/down control of the four stabilizing jacks, the open/close function of the roof/canopy, the raise/lower function of the hydraulic stage, and the auto-leveling system.
				c.	Auto-Leveling Feature: Controlled by wireless remote.
					1)	One-button feature allows the mobile stage to electronically sense its out-of-level position, and will automatically adjust the hydraulic stabilizers until a level chassis position is attained.
				d.	Safety Features:
					1)	Roof/Canopy raise shall not function until a level chassis position is attained.
					2)	Hydraulic stage shall not lower or raise until adequate roof/canopy clearance is available.
				e.	Standard wired controller to be supplied along with wireless remote controller that is supplied with hydraulic leveling option.
			2.	Disability Lift (12V-powered): Low-profile platform style wheelchair lift built into the curbside wall of the mobile stage, with interior cover and lockable exterior access door:
				a.	Provide manual back-up pump.
				b.	Minimum lift capacity shall be 800 lbs.
			3.	Graphics: Complete exterior graphics package custom designed:
				a.	Graphics, logo and text shall be executed with 3M acrylic vinyl in a choice of 60 colors.
		L.	Accessories:
	** NOTE TO SPECIFIER ** Delete accessories not required.
			1.	Stage Extensions: Component 4 foot x 8 foot (122 x 244 cm) variable height stage platforms:
				a.	Each platform shall be constructed of lightweight aluminum framing with black Quadripple stage decking material.
				b.	Platforms securely attach to each other or anywhere around the perimeter of the stage.
				c.	Legs: Variable height, 30 to 54 inches (76 - 137 cm) with appropriate connection hardware.
				d.	Weight: 120 lb (55 kg) maximum.
				e.	May also be used independently for other uses.
	** NOTE TO SPECIFIER ** Delete packages not required.
				f.	Stage Extension Package A: Extends the stage on both ends of the mobile stage, for a nominal stage size of 16 feet x 40 feet (4.88 m x 12 m). Units can alternately be used to extend the front of the mobile stage. Includes:
					1)	(4) 4 foot x 8 foot (122 x 244 cm) Stage Platforms.
					2)	(4) 2 foot x 8 foot (61 x 244 cm) Stage Platforms.
					3)	Legs and connectors.
				g.	Stage Extension Package B: Extends both ends, as in Package A, plus adds 4 feet to the front of the mobile stage, for a nominal stage size of 20 feet x 40 feet (6 m x 12 m). Units can alternately be used to extend the front of the mobile stage. Includes:
					1)	(9) 4 foot x 8 foot (122 x 244 cm) Stage Platforms.
					2)	(4) 2 foot x 8 foot (61 x 244 cm) Stage Platforms.
					3)	Legs and connectors.
				h.	Stage Extension Package C: Extends both ends, as in Package A, plus adds 4 feet to the front of the mobile stage, for a nominal stage size of 20 feet x 40 feet (6 m x 12 m). Units can alternately be used to extend the front of the mobile stage. Includes:
					1)	(14) 4 foot x 8 foot (122 x 244 cm) Stage Platforms.
					2)	(4) 2 foot x 8 foot (61 x 244 cm) Stage Platforms.
					3)	Legs and connectors.
			2.	Stage Drapery Skirting: Pleated outdoor drapery skirting with Velcro attachment and weighted bottom shall be provided for the front and sides of the stage.
				a.	Color: _____.
			3.	Additional Stairways: Of same design as included stairway.
				a.	Number: _____.
			4.	Lighting Packages: Canopy lights mounted to the canopy light frame assembly bars.
				a.	All fixtures are IP rated (65 or greater) for increased weather resistance and longevity.
				b.	Bars and lights shall be designed to swing out for performance use or returned to storage position for travel without being dismantled from the canopy.
				c.	Wall mounted reprogrammable 5 preset DMX controller (pre-programmed for basic function from the factory).
				d.	5 pin DMX override port for optional external control.
				e.	Circuit Breakers: three additional 20-amp breakers for lighting added to existing 110V electrical system.
	** NOTE TO SPECIFIER ** Delete packages not required.
				f.	Lighting Package - Show:
					1)	(5) Upstage RGB batten downlights.
					2)	(8) Canopy-mounted RGBWA-UV front wash fixtures.
					3)	Total additional intensity: 38,000 lumens.
				g.	Lighting Package - Performance:
					1)	(5) Upstage RGB batten downlights.
					2)	(4) High-output canopy mounted LED profile fixtures.
						a)	CRI (Color Rending Index): 97.2.
						b)	Color Temperature: 3200K.
						c)	50-degree lens.
					3)	Total additional intensity: 57,000 lumens.
			5.	Portable Generator:
				a.	Industrial 6,600 continuous watts rated - 11.7 HP, four-stroke, single cylinder, air cooled with 6.5 gallon fuel tank.
				b.	Does not supply power to the optional canopy and roof lighting packages.
				c.	Shall not be attached to the mobile stage.
			6.	Spare Tire and Wheel: LT 235/85 R16 steel belted radial tires mounted on an eight-bolt rim.
			7.	Secondary Control Unit: Connects directly into control compartment:
				a.	Operates all functions of the mobile stage with hydraulic leveling option.
				b.	Serves as backup or replacement for wireless remote.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.21	INTEGRATED CONTROLS FOR LIGHTING
		A.	Basis-of-Design: Pre-approved vendors are called out here and by schedule elsewhere. Named approval does not relieve a vendor from meeting specified performance requirements:
			1.	Wenger / JR Clancy - Owatonna, MN.
			2.	Philips Entertainment - Dallas, TX.
			3.	Pathway Connectivity - Calgary, Alberta.
			4.	Altman Lighting - Yonkers, NY.
			5.	Aquarii Lighting - Camillus, NY.
			6.	Chauvet Professional - Sunrise, FL.
			7.	Lex Products - Shelton, CT.
			8.	SSRC - Duncan, SC.
			9.	Strong Lighting - Omaha, NE.
		B.	Integrated Lighting Controls for the Following:
	** NOTE TO SPECIFIER ** Delete type not required.
			1.	Hybrid lighting.
			2.	LED lighting.
	** NOTE TO SPECIFIER ** Delete if not required.
		C.	Ethernet Network:
			1.	Ethernet network backbone shall comply with the IEEE 802.3 10BASE-T Ethernet specification.
			2.	All network cabling shall be Cat5, Cat5e or Cat6 conforming to TIA-568A/B.
			3.	Data transport shall utilize the TCP/IP suite of protocols to transfer the DMX data.
			4.	Control devices and shall support industry standard ANSI 1.31 Streaming ACN.
			5.	Ethernet nodes shall also provide legacy support of ETCNet2, ETCNet3, Pathport, ArtNet, and ShowNet protocols. Nodes shall accept data from any of the protocols named above simultaneously.
			6.	TCP/IP Ethernet connection to the Internet shall be provided at the Stage Manager's network rack location. ISP service and interconnecting wiring shall be furnished and installed by others.
	** NOTE TO SPECIFIER ** Delete if not required.
		D.	DMX512 Network:
			1.	DMX512 network backbone shall support full bi-directional RDM communication and shall adhere to ANSII standard E1.20-2006 Entertainment Technology - RDM - Remote Device Management over DMX512 Networks.
			2.	Supported RDM features shall include:
				a.	Discovery and Identification of RDM capable devices.
				b.	Setting of start addresses, operating modes and additional settings as exposed by connected devices and controllable via RDM.
				c.	Remote viewing of data as provided by connected devices.
				d.	Error reporting as provided by connected devices.
	** NOTE TO SPECIFIER ** Delete if not required.
		E.	BacNET Network:
			1.	BacNET network backbone shall comply with ASHRAE standard 135-2016.
			2.	BacNET shall provide an override interface to the building/campus BMS. The BMS itself shall be furnished, wired, programmed and maintained by others.
			3.	The network rack, located at the Stage Manager's position, shall be visible to the BMS as a BacNET "object"
			4.	The network rack shall function as a BacNET gateway.
	** NOTE TO SPECIFIER ** Delete if not required.
		F.	Theatrical Controls:
			1.	Theatrical controls shall provide a familiar and easy-to-use Windows graphical user interface (GUI). Controls shall restrict user access to the operating system, but provide open access to user generated show files.
			2.	Complete hardware, system software and show file backup capability shall be provided. Any Windows 7 or better PC shall provide backup access.
			3.	Theatrical controls shall be native IEEE 802.3af-2003 PoE device(s).
			4.	Theatrical controls shall provide native support for ANSI E1.11-2008 (DMX512A) networking
			5.	Theatrical controls shall provide native support for ANSI E1.31 (Streaming DMX over ACN) networking.
			6.	Theatrical controls shall provide native remote access support, where an Internet connection is present. This feature allows authorized technicians located elsewhere to "take control" of the system, for maintenance and training purposes.
			7.	Theatrical controls shall support up to three (3) HD touchscreen monitors. Each display shall be user definable.
			8.	Control surfaces shall be backlit and changes to color and intensity used to indicate "state". Buttons shall also provide "follow me" indications designed to help novice users learn required key press sequences.
			9.	GUI control of intelligent lighting fixtures shall be provided. A standard library of intelligent fixture profiles shall be included and periodically updated. The ability to edit existing profiles and create new profiles shall also be provided.
			10.	Intelligent fixture attributes shall be graphically defined, not by channel numbers or DMX512 values. An intelligent fixture shall be represented by a single control channel, not a number series of values.
			11.	Multiple users may access show data simultaneously. Show files are simultaneously saved across the system to integral hard drives, flash drives and external network drives.
			12.	Theatrical controls shall provide direct XLR5 support of up to 2048 DMX/RDM512 devices (51,200 via network, 100 universes).
			13.	A show file may contain virtually unlimited cues, groups, submasters, effects and macros.
			14.	Theatrical controls shall support the Philips Advantage DMX program. Users of Philips Selecon, Philips Varilite, Philips Showline, or Philips Color Kinetics fixtures shall not consume available registered channels when these fixtures are patched. Other manufacturers shall not charge for registered outputs to run these multichannel luminaires.
	** NOTE TO SPECIFIER ** Delete if not required.
		G.	Architectural Controls:
			1.	Primary architectural control interface shall be one or more 7" capacitive color touchscreen computers.
			2.	Each touchscreen shall be a native IEEE 802.3af-2003 PoE device.
			3.	Each touchscreen shall provide native support for ANSI E1.11-2008 (DMX512A) networking.
			4.	Each touchscreen shall provide native support for ANSI E1.31 (Streaming DMX over ACN) networking.
			5.	Each touchscreen shall store an unlimited number of memories and cues.
			6.	Each touchscreen shall store data in non-volatile memory.
			7.	File creation and editing shall be performed on the touchscreen directly, without the need of external software, a theatrical console or a PC. Files may be created or edited by these devices however.
			8.	Intelligent lighting fixtures shall be controlled with a GUI interface and natural language, not data value or numerical entries.
			9.	Secondary architectural control interface shall be Decora format modular stations made up of illuminated pushbuttons and slider potentiometers.
			10.	Each module shall provide one or two sliders, or two or four pushbuttons.
			11.	Networking and other performance requirements shall match the touchscreen(s).
	** NOTE TO SPECIFIER ** Delete if not required.
		H.	Sensors:
			1.	Sensors shall be digital, programmable and linked together on a L/V network.
			2.	Sensors shall be used to trigger architectural presets and provide automatic turn-off functionality.
			3.	Sensors shall be designed for high (auditorium) ceiling applications.
			4.	Vacancy sensors shall be "Dual Tech". Both PIR and Ultrasonic circuits are required.
			5.	Sensor circuit shall support "time of day" scheduling.
	** NOTE TO SPECIFIER ** Delete if not required.
		I.	Contact Relay Switching Panels:
			1.	Relay panels shall be available in three physical sizes. Panel capacity shall be 12, 24, 36 or 48 individual "snap-in" relays.
			2.	"Thru-wire" and "main lug" panel models shall be available.
			3.	Optional main and branch breaker options shall be available.
			4.	Panels shall provide native support for ANSI E1.11-2008 (DMX512A) networking.
			5.	Panels shall provide native support for ANSI E1.31 (Streaming DMX over ACN) networking.
			6.	Panels shall provide support for UL924 Emergency transfer switching.
			7.	Panels shall be provided with local LED status displays and digital override pushbuttons.
			8.	Relays which are hardwired, use shared components or are PCB mounted shall not be acceptable.
			9.	Relays shall include onboard manual override switching, which doesn't need power to operate.
			10.	Panels and relays shall both be UL or ETL listed and labeled.
	** NOTE TO SPECIFIER ** The following paragraph is not applicable to LED lighting controls. Delete if not required
		J.	A21 Dimming Panels:
			1.	Dimming panels shall be available in three physical sizes. Panel capacity shall be 12, 24, 36 dimmers and/or relays.
			2.	Panels shall be wired to 120/208V main lugs.
			3.	Optional main and branch breaker options shall be available.
			4.	Panels shall be convection cooled. Use of fans, blowers or filters shall not be acceptable.
			5.	Dimmers and relays shall be provided as "bolt-in" modules. These may be inserted mix-and-match.
			6.	Available dimmer technology shall include IGBT (two wire), SSR (two wire) and 0-10V LED (four wire).
			7.	IGBT technology is ideal when using two wire LED loads, as IGBT shall support both RPC (reverse phase) and FPC (forward phase) output waveforms.
			8.	IGBT dimmers shall not utilize "inductors" a/k/a "filter chokes" or other magnetics
			9.	IGBT voltage transition time (rise-time and fall-time) shall be greater than 800 uS and unaffected by load size.
			10.	IGBT insertion loss (voltage drop) shall be less than 3 volts with the dimmer set to full.
			11.	Panels shall provide native support for ANSI E1.11-2008 (DMX512A) networking.
			12.	Panels shall provide native support for ANSI E1.31 (Streaming DMX over ACN) networking.
			13.	Panels shall provide support for UL924 Emergency transfer switching.
			14.	Panels and modules shall both be UL or ETL listed and labeled.
	** NOTE TO SPECIFIER ** The following paragraph is not applicable to LED lighting controls. Delete if not required.
		K.	R21 Raceways:
			1.	Raceways shall be built-to-order power distribution devices 6.48 inches tall x 3.24 inches wide (164.59 x 82.30 mm) x specified length.
			2.	Raceways shall contain dual IGBT dimming and/or SSR switching modules in the quantity specified.
			3.	Each module shall provide two individually controllable circuits. Each circuit shall be rated for a 2000W load.
			4.	Each module shall be powered by one 20A circuit. Current sensing circuitry in the module shall limit total module load to 2400 watts or less.
			5.	Each module shall be provided with local ON/OFF/DIM controls and LED load status displays.
			6.	IGBT dimmer performance specifications shall be identical to the A21 modules called out in 1.10 above.
	** NOTE TO SPECIFIER ** Delete if not required.
		L.	Power Distribution Boxes:
			1.	Power distribution shall consist of scheduled outlet boxes, pigtail boxes and floor pockets.
			2.	Power distribution shall also consist of Company switches, UL1008 EM transfer panels and EM phase loss sense panels.
			3.	TSI shall furnish power distribution for physical and electrical installation by the Division 26 contractor.
			4.	All power distribution shall be UL or ETL listed and labeled.
	** NOTE TO SPECIFIER ** Delete if not required.
		M.	Theatrical Fixtures - Quartz-Halogen, LED and Intelligent:
			1.	Theatrical fixtures shall fall into three groups:
				a.	Quartz-halogen source, fixed positioning, externally controlled and dimmed.
				b.	White light or RGBW LED source, fixed positioning, DMX512 controlled and dimmed.
				c.	White light or RGBW LED or ARC source, intelligent focus and positioning, DMX512 controlled and dimmed.
			2.	LED and intelligent fixtures shall provide native support for ANSI E1.11-2008 (DMX512A) networking.
			3.	All fixtures shall be ETL, cETL and CE LISTED and labeled. ETL listing shall be under Portable Luminaires (UL Standard 1573) and Surface Mount Luminaires (UL Standard 1598).
			4.	All fixtures shall be designed for an ambient operating temperature of -14 degrees Fahrenheit to 104 degrees Fahrenheit (-10 degrees Celsius to 40 degrees Celsius).
			5.	All LED fixtures shall include multiple internal temperature sensors and automatic overtemp shutdown.
			6.	All fixtures shall be IP20 rated for (clean and dry) indoor use.
			7.	All fixtures shall be constructed of die cast aluminum and sheet steel housing. Use of flammable polycarbonate (plastic) fixture housings shall not be acceptable.
			8.	Quartz-halogen fixtures shall be furnished with a mounting clamp, 36 inches (914 mm) cord w/ specified connector installed, color frame and safety cable. 110 percent lamp inventory shall also be provided.
			9.	LED and intelligent fixtures shall be furnished with a mounting clamp, color frame and safety cable. PowerCONN input and output connectors shall be provided. XLR5 DMX512 input and output connectors shall also be provided.
			10.	All theatrical fixtures shall be assembled, lamped, addressed and hung in place by the TSI.
	** NOTE TO SPECIFIER ** Delete if not required.
		N.	Architectural Fixtures:
			1.	Architectural fixtures shall utilize convection cooled light engines exclusively. Any architectural fixtures that incorporates cooling fans, or requires a liquid filled radiator shall be unacceptable.
			2.	Architectural fixtures shall not be a significant source of RFI emissions.
			3.	Except where excluded by schedule, architectural fixtures shall be compatible with the DMX512 control protocol and provide full RDM support.
			4.	Architectural fixtures shall dim down to 1 percent, with no discernable stepping, pulse or drift.
			5.	Architectural fixtures shall dim up from zero with no discernable flash or "pop"
			6.	On-site performance testing shall demonstrate compliance with above, as part of the system turn-on process. Non-compliance may provoke a demand for fixture replacement
			7.	Architectural fixtures shall be UL or ETL listed and labeled.
	** NOTE TO SPECIFIER ** Delete if not required.
		O.	Life Safety Fixtures:
			1.	Life Safety fixtures shall fall into four groups:
				a.	LED seat and aisle lights.
				b.	LED stage edge lights.
				c.	LED locking rail worklights.
				d.	LED running lights a/k/a "blues".
			2.	Life safety fixtures shall provide support for ANSI E1.11-2008 (DMX512A) networking.
			3.	Life safety fixtures shall provide support for UL924 emergency transfer.
	** NOTE TO SPECIFIER ** Delete if not required.
	2.22	FIRE CURTAIN SYSTEMS, BRAIL FIRE CURTAIN
	** NOTE TO SPECIFIER ** Delete operation not required for project.
		A.	Fire Curtain Hoist:
			1.	General Description:
				a.	Furnish and install a motorized brail lift, automatically closing fire safety curtain as indicated on the drawings. The curtain shall fold up above the proscenium arch, and shall lap the wall not less than 18 inch (457 mm) at each side of the proscenium opening and 24 inch (610 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with Zetex. D-rings shall be sewn 18 inch (457.2 mm) apart in vertical rows at each lift line location.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of an 8 inch (203.2 mm) deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Welded construction shall not be accepted. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 ounces per square yard (0.9 KG/sq m).
			8.	Fire Curtain Hoist:
				a.	Hoist shall consist of a cable drum, coupled to an electric gear motor. Hoist shall have a 1,100lb (500 KG) lifting capacity at a rate of 25 feet/min (0.13 m/s). The hoist shall be fully enclosed and supplied with a sturdy metal stand or wall brackets.
				b.	The cable drum shall be of welded steel construction and carry 75 feet (22.86 m) of 5/16 inch (7.9 mm) diameter 7x19 galvanized utility cable. Twin guards shall keep the cable in the drum groove.
				c.	The hoist (and curtain) shall be locked in position by the motor brake located within the enclosure. Releasing the fire line shall disengage the motor brake, permitting the cable drum to rotate, lowering the curtain. The brake handle shall extend through the top of the case, for easy attachment to the end of the fire line. No more than 20lbs (9 KG) of tension in the fire line shall be required to hold the full load capacity of the winch.
				d.	The unit shall be equipped with an adjustable hydraulic speed governor to provide maximum control and safety in the closing of the fire curtain and to establish the travel time.
				e.	Gearmotor:
					1)	The motor and helical/bevel gearbox shall be an integrated unit, with the first stage pinion mounted directly on the motor's armature shaft.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear case shall be cast iron for protection against shock damage. The output shaft shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
				f.	Rotary Limit Switch:
					1)	Rotary limit switch assembly shall have four independently adjustable switch/cam sets. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Switches shall be mounted within the winch base as to allow for easy adjustment of the switch settings.
					4)	Rotary limit switches shall be Ravasi.
				g.	All components in the hoist shall be fully enclosed. Access panels for adjustment and maintenance shall be removable without removing the hoist from service.
				h.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self-protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked and reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			9.	Control Station: Controls, consisting of up and down pushbuttons and an emergency stop switch, are mounted on the motor starter.
			10.	Guided Clew: Cable clew shall be cut from 5/16 inch (7.94 mm) minimum steel, with the proper number of holes for proper attachment of turnbuckles for multiple cables. One larger hole for the drive cable shall be so located as to prevent the clew from jamming on its guide cables. Provide two parallel guide cables between the head block and the brail hoist to guide the clew.
			11.	Head Block:
				a.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 2,500lb (1.1 KG), and shall be designed for use in either upright or underhung usage.
				e.	Block shall be grooved for (8) 1/4 inch (6.4 mm) lift lines.
			12.	Loft Block:
				a.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be iron casting, with a machined groove. The sheave shall be equipped with a 17 mm diameter shaft and two sealed, precision ball bearings.
				b.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
				c.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 500lb (317 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
			13.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet-0 inch (1.54 m) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			16.	Drive Cable: The drive cable between the brail hoist and the clew shall be 5/16 inch (7.9 mm) diameter 7x19 galvanized aircraft cable, attached to the clew using a thimble and two forged cable clips.
			17.	Safety Chains: Supply one more safety chain than the number of lift cables. The 1/4 inch (6.4 mm) proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
			18.	Half Pipe Clamps:
				a.	Pipe clamps shall be made of two strips of 3/16 inch by 2 inch (3.17 mm x 50.8 mm) hot rolled steel formed to almost encompass and clamp the pipe batten leaving the bottom open. Corners shall be rounded.
				b.	There shall be a 3/8 inch x 1 inch (9.52 mm x 25.4 mm) hex bolt with lock nut above the batten. A 5/8 inch (15.87 mm) hole in the top of each clamp half allows the attachment of cable, chain, or other fittings.
				c.	Half pipe clamps shall have a manufacturer's recommended load rating of at least 200 lbs. (90.7 KG).
	** NOTE TO SPECIFIER ** Delete if not required for project.
	2.23	FIRE CURTAIN SYSTEMS, STRAIGHT LIFT CURTAIN, PROSCENIUM OPENING UP TO 18'T x 34'W
		A.	Manual (Arbor/Lattice Track):
			1.	General Description:
				a.	Furnish and install a manually operated straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch at each side of the proscenium opening and 24 inch at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch (152.4 mm) deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1.2 m) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 ounces per square yard (0.91 KG/sq m).
			8.	12 inch (304.8 mm) Head Block:
				a.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The machined rope and cable grooves shall have equal pitch diameters. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.35 mm) angle with the short leg turned in. The turned in leg shall be notched to allow clear passage of all cables.
				c.	Side plates shall be a minimum of 10-gauge (3.570 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs. (1,134 KG).
				e.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
			9.	Loft Block:
				a.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 17 mm diameter shaft and two sealed, precision ball bearings.
				b.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
				c.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall be cast iron sheave grooved for one 1/4 inch (6.35 mm) lift line.
			10.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.05 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.35 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			11.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.35 mm) angles opposing each other with formed brackets alternating front and back on 2 feet (610 mm) centers. Back brackets shall contain two 9/16 inch (14.29 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			12.	Automatic Floor Block:
				a.	The cast iron sheave shall have a 12 inch (304.8 mm) outside diameter, and shall be an iron casting, with a groove for a 1 inch (25.4 mm) rope.
				b.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter machined steel shaft and two tapered roller bearings.
				c.	The tension block shall be held in place and guided by two 3/4 inch (19.05 mm) diameter rods, each equipped with adjustable locking collar to limit sheave travel.
			13.	Battens: Battens shall be made of 2 inch I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as the fire curtain arbor release, round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Hand line:
				a.	Hand line shall be 3/4 inch (19.1 mm) in diameter, employing a 3-strand composite construction combining filament and staple/spun polyester wrapped around fibrillated polyolefin.
				b.	The hand line shall contain an identifying tape showing the manufacturer's name, phone number, website, and year of manufacture.
				c.	The hand line shall contain a red safety/wear indicator that shall become visible as the rope nears the end of its useful life.
				d.	The rope shall hold knots well and be easily spliced. Rope shall not be subject to rotting, mildew, or moisture damage nor shall its length be affected by changes in humidity.
				e.	Tape ends before cutting. Attach to arbor with two half hitches or bowline and tape end to standing line with electrical tape.
				f.	Hand lines shall be SureGrip rope.
			16.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			17.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		B.	Fire Curtain Hoist:
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity, with the speed of descent controlled by a hydraulic speed regulator. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshal, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 ounces per square yard (0.91 KG/sq m).
			8.	Fire Curtain Hoist:
				a.	Hoist shall consist of a cable drum, coupled to an electric gear motor. Hoist shall have a 1,100lb (500 KG) lifting capacity at a rate of 25 feet per minute (0.13 m/s). The hoist shall be fully enclosed and supplied with a sturdy metal stand or wall brackets.
				b.	The cable drum shall be of welded steel construction and carry 75 feet (22.86 m) of 5/16 inch (7.94 mm) diameter 7X19 galvanized utility cable. Twin guards shall keep the cable in the drum groove.
				c.	The hoist (and curtain) shall be locked in position by the motor brake located within the enclosure. Releasing the fire line shall disengage the motor brake, permitting the cable drum to rotate, lowering the curtain. The brake handle shall extend through the top of the case, for easy attachment to the end of the fire line. No more than 20lbs (9 KG) of tension in the fire line shall be required to hold the full load capacity of the winch.
				d.	The unit shall be equipped with an adjustable hydraulic speed governor to provide maximum control and safety in the closing of the fire curtain and to establish the travel time.
				e.	Gearmotor:
					1)	The motor and helical/bevel gearbox shall be an integrated unit, with the first stage pinion mounted directly on the motor's armature shaft.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear case shall be cast iron for protection against shock damage. The output shaft shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
				f.	Rotary Limit Switch:
					1)	Rotary limit switch assembly shall have four independently adjustable switch/cam sets. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Switches shall be mounted within the winch base as to allow for easy adjustment of the switch settings.
					4)	Rotary limit switches shall be Ravasi.
				g.	All components in the hoist shall be fully enclosed. Access panels for adjustment and maintenance shall be removable without removing the hoist from service.
				h.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
					5)	The fire curtain hoist shall be sized to accommodate the fire curtain and all associated hardware. The hoist shall include a push button control station. Emergency lowering speed shall be controlled by a hydraulic speed regulator. Hoist shall meet ANSE E1.22 - 2009 "Entertainment Technology Fire Safety Curtain Systems" or NFPA 80 "Standard for Fire Doors and Other Opening Protectives - 2007".
			9.	Control Station: Controls, consisting of up and down pushbuttons and an emergency stop switch, are mounted on the motor starter.
			10.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			11.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six UL listed fusible links that release at 165 degree F (74 degree C), side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			12.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			13.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		C.	Line Shaft Hoist:
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity, with the speed of descent controlled by a hydraulic speed regulator. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshal, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	Line Shaft Fire Curtain Hoist:
				a.	The hoist shall consist of a gearmotor assembly, a drum for each lift line, and interconnecting shafts. The gearmotor assembly shall include a brake release and a hydraulic speed regulator, allowing the curtain to close at a controlled rate of speed when the brake is released by the activation of the fire line. The hoist shall have a minimum1,400 lb (635 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				b.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a helical bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				c.	Drums.
					1)	Each helical drum shall be supported by a sturdy steel base, holding the elements of the drum assembly in proper alignment. Both ends of each drum shall be supported by a self-aligning flange bearing.
					2)	Alternate drums shall be threaded in opposite directions, to keep the batten from "walking" as its elevation changes.
					3)	Drums shall be interconnected by shafts with universal joints at each end. Shafts without universal joints are not acceptable.
				d.	Rotary Limit Switches:
					1)	Rotary limit switch assemblies shall have two or four independently adjustable switch/cam sets as required. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Rotary limit switches shall be driven directly or by roller chains. If roller chains are used, sprockets shall be pinned to prevent slipping and sized for maximum usable rotation of switch cams. The input shaft and drive chain shall be fully guarded.
					4)	Switches shall be mounted to the hoist base to allow for easy adjustment of the switch settings.
				e.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			9.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			10.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			11.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			12.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			13.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		D.	Traction Drive Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	Traction Style Fire Curtain Hoist:
				a.	The hoist shall consist of a traction sheave and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				b.	The iron or steel sheave shall be a minimum diameter of 40 times cable diameter with V-grooves for the number and diameter of lift lines required.
				c.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				d.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				e.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				f.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
				g.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			9.	Loft Block:
				a.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			10.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			11.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			12.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			13.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5' (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			14.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			15.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		E.	Drum Hoist:
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	Drum Style Fire Curtain Hoist:
				a.	The hoist shall be mounted to allow dual drive lines to travel from either side of the fire curtain centerline, over loft blocks and to the hoist drum.
				b.	The hoist shall consist of a cable drum and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				c.	The drum shall be a minimum diameter of 30 times cable diameter with helical grooves for the number and diameter of lift lines required.
				d.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				e.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				f.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				g.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
				h.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			9.	Loft Block:
				a.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			10.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to permit normal motorized operation of the fire curtain and emergency closure without power.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			11.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			12.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			13.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			14.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			15.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
	2.24	FIRE CURTAIN SYSTEMS, STRAIGHT LIFT CURTAIN, PROSCENIUM OPENING UP TO 22'T x 42'W
		A.	Manual (Arbor/Lattice Track):
			1.	Product: Model F201m Manual Straight Lift Fire Curtain With Smoke Pocket Roller Guide and Metal Edge Curtain Channel.
			2.	General Description:
				a.	Furnish and install a manually operated straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch at each side of the proscenium opening and 24 inch at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			3.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			4.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.59 mm) steel reinforcement 6 inch (152.4 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.52 m) and 10 feet (3,04 m) long sections and can be field cut.
			6.	Smoke Pockets with Track: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch (152 mm) deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457 mm) steel plate bolted to the channels on 2 feet-0 inch (0.61 m) centers. A 14 ga. (1.98 mm) steel channel track, entirely enclosed except for a slot in the side, shall be bolted to the side of the smoke pocket to carry the guide rollers. Channels shall be anchored to the walls on 4 feet-0 inch (1.22 m) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	12 inch (304.8 mm) Head Block:
				a.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The machined rope and cable grooves shall have equal pitch diameters. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.35 mm) angle with the short leg turned in. The turned in leg shall be notched to allow clear passage of all cables.
				c.	Side plates shall be a minimum of 10-gauge (3.570 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs. (1,134 KG).
				e.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
			9.	Loft Block:
				a.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 17 mm diameter shaft and two sealed, precision ball bearings.
				b.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
				c.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall be cast iron sheave grooved for one 1/4 inch (6.35 mm) lift line.
			10.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.05 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.35 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			11.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.35 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.29 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			12.	Automatic Floor Block:
				a.	The cast iron sheave shall have a 12 inch (304.8 mm) outside diameter, and shall be an iron casting, with a groove for a 1 inch (25.4 mm) rope.
				b.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter machined steel shaft and two tapered roller bearings.
				c.	The tension block shall be held in place and guided by two 3/4 inch (19.05 mm) diameter rods, each equipped with adjustable locking collar to limit sheave travel.
			13.	Battens: Battens shall be made of 2 inch I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as the fire curtain arbor release, round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Hand line:
				a.	Hand line shall be 3/4 inch (19.1 mm) in diameter, employing a 3-strand composite construction combining filament and staple/spun polyester wrapped around fibrillated polyolefin.
				b.	The hand line shall contain an identifying tape showing the manufacturer's name, phone number, website, and year of manufacture.
				c.	The hand line shall contain a red safety/wear indicator that shall become visible as the rope nears the end of its useful life.
				d.	The rope shall hold knots well and be easily spliced. Rope shall not be subject to rotting, mildew, or moisture damage nor shall its length be affected by changes in humidity.
				e.	Tape ends before cutting. Attach to arbor with two half hitches or bowline and tape end to standing line with electrical tape.
				f.	Hand lines shall be SureGrip rope.
			16.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			17.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		B.	Fire Curtain Hoist:
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity, with the speed of descent controlled by a hydraulic speed regulator. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshal, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10 feet (305 mm) long sections and can be field cut.
			6.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			7.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			8.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			9.	Fire Curtain Hoist:
				a.	Hoist shall consist of a cable drum, coupled to an electric gear motor. Hoist shall have an 1,100lb (500 KG) lifting capacity at a rate of 25 feet per minute (0.13 m/s). The hoist shall be fully enclosed and supplied with a sturdy metal stand or wall brackets.
				b.	The cable drum shall be of welded steel construction and carry 75 feet (22.86 m) of 5/16 inch (7.94 mm) diameter 7X19 galvanized utility cable. Twin guards shall keep the cable in the drum groove.
				c.	The hoist (and curtain) shall be locked in position by the motor brake located within the enclosure. Releasing the fire line shall disengage the motor brake, permitting the cable drum to rotate, lowering the curtain. The brake handle shall extend through the top of the case, for easy attachment to the end of the fire line. No more than 20lbs (9 KG) of tension in the fire line shall be required to hold the full load capacity of the winch.
				d.	The unit shall be equipped with an adjustable hydraulic speed governor to provide maximum control and safety in the closing of the fire curtain and to establish the travel time.
				e.	Gearmotor:
					1)	The motor and helical/bevel gearbox shall be an integrated unit, with the first stage pinion mounted directly on the motor's armature shaft.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear case shall be cast iron for protection against shock damage. The output shaft shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
				f.	Rotary Limit Switch:
					1)	Rotary limit switch assembly shall have four independently adjustable switch/cam sets. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Switches shall be mounted within the winch base as to allow for easy adjustment of the switch settings.
					4)	Rotary limit switches shall be Ravasi.
				g.	All components in the hoist shall be fully enclosed. Access panels for adjustment and maintenance shall be removable without removing the hoist from service.
				h.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
					5)	The fire curtain hoist shall be J.R. Clancy Motorized Fire Curtain Hoist.
			10.	Control Station: Controls, consisting of up and down pushbuttons and an emergency stop switch, are mounted on the motor starter.
			11.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			12.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			13.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			14.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		C.	Line Shaft Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity, with the speed of descent controlled by a hydraulic speed regulator. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshal, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10 feet (305 mm) long sections and can be field cut.
			6.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			7.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			8.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			9.	Line Shaft Fire Curtain Hoist:
				a.	The hoist shall consist of a gearmotor assembly, a drum for each lift line, and interconnecting shafts. The gearmotor assembly shall include a brake release and a hydraulic speed regulator, allowing the curtain to close at a controlled rate of speed when the brake is released by the activation of the fire line. The hoist shall have a minimum1,400 lb (635 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				b.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a helical bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				c.	Drums:
					1)	Each helical drum shall be supported by a sturdy steel base, holding the elements of the drum assembly in proper alignment. Both ends of each drum shall be supported by a self-aligning flange bearing.
					2)	Alternate drums shall be threaded in opposite directions, to keep the batten from "walking" as its elevation changes.
					3)	Drums shall be interconnected by shafts with universal joints at each end. Shafts without universal joints are not acceptable.
				d.	Rotary Limit Switches:
					1)	Rotary limit switch assemblies shall have two or four independently adjustable switch/cam sets as required. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Rotary limit switches shall be driven directly or by roller chains. If roller chains are used, sprockets shall be pinned to prevent slipping and sized for maximum usable rotation of switch cams. The input shaft and drive chain shall be fully guarded.
					4)	Switches shall be mounted to the hoist base to allow for easy adjustment of the switch settings.
				e.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			10.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			11.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			12.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			13.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			14.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		D.	Traction Drive Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10' (305 mm) long sections and can be field cut.
			6.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			7.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			8.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			9.	Traction Style Fire Curtain Hoist:
				a.	The hoist shall consist of a traction sheave and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				b.	The iron or steel sheave shall be a minimum diameter of 40 times cable diameter with V-grooves for the number and diameter of lift lines required.
				c.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				d.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				e.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				f.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self-protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an over travel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the over travel limits for resetting purposes.
				g.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			10.	Loft Block:
				a.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			11.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch(12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			12.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			13.	Battens: Battens shall be made of 2 inch 50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			16.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		E.	Drum Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have bronze guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10 feet (305 mm) long sections and can be field cut.
			6.	Guides: Provide 1/4 inch (6.4 mm) wire rope guide at each side of the curtain. These cables shall be attached to a ring at the stage floor level and extend to the roof steel or gridiron where they shall be attached with 3/8 inch x 6 inch (9.525 mm x 152.4 mm) turnbuckles, thimbles, swage sleeves and other fittings as required.
			7.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			8.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			9.	Drum Style Fire Curtain Hoist:
				a.	The hoist shall be mounted to allow dual drive lines to travel from either side of the fire curtain centerline, over loft blocks and to the hoist drum.
				b.	The hoist shall consist of a cable drum and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				c.	The drum shall be a minimum diameter of 30 times cable diameter with helical grooves for the number and diameter of lift lines required.
				d.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				e.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				f.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				g.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
				h.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			10.	Loft Block:
				a.	The sheave shall have a 12 inch 304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch(50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			11.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to permit normal motorized operation of the fire curtain and emergency closure without power.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			12.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			13.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			16.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
	2.25	FIRE CURTAIN SYSTEMS, STRAIGHT LIFT CURTAIN, PROSCENIUM OPENING UP TO 30'T x 50'W
		A.	Manual (Arbor/Lattice Track).
			1.	General Description:
				a.	Furnish and install a manually operated straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch at each side of the proscenium opening and 24 inch at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.59 mm) steel reinforcement 6 inch (152.4 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.52 m) and 10 feet (3,04 m) long sections and can be field cut.
			5.	Smoke Pockets with Track: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch (152 mm) deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457 mm) steel plate bolted to the channels on 2 feet-0 inch (0.61 m) centers. A 14 ga. (1.98 mm) steel channel track, entirely enclosed except for a slot in the side, shall be bolted to the side of the smoke pocket to carry the guide rollers. Channels shall be anchored to the walls on 4 feet-0 inch (1.22 m) centers.
			6.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			7.	12 inch (304.8 mm) Head Block:
				a.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The machined rope and cable grooves shall have equal pitch diameters. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.35 mm) angle with the short leg turned in. The turned in leg shall be notched to allow clear passage of all cables.
				c.	Side plates shall be a minimum of 10-gauge (3.570 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs. (1,134 KG).
				e.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
			8.	Loft Block:
				a.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 17 mm diameter shaft and two sealed, precision ball bearings.
				b.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
				c.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall be cast iron sheave grooved for one 1/4 inch (6.35 mm) lift line.
			9.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.05 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.35 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			10.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.35 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.29 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			11.	Automatic Floor Block:
				a.	The cast iron sheave shall have a 12 inch (304.8 mm) outside diameter, and shall be an iron casting, with a groove for a 1 inch (25.4 mm) rope.
				b.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter machined steel shaft and two tapered roller bearings.
				c.	The tension block shall be held in place and guided by two 3/4 inch (19.05 mm) diameter rods, each equipped with adjustable locking collar to limit sheave travel.
			12.	Battens: Battens shall be made of 2 inch I.D. nominal, schedule 40 black iron pipe.
			13.	Fire line System: The manual fire line release system shall consist of a 1/8 inch diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as the fire curtain arbor release, round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			14.	Hand line:
				a.	Hand line shall be 3/4 inch (19.1 mm) in diameter, employing a 3-strand composite construction combining filament and staple/spun polyester wrapped around fibrillated polyolefin.
				b.	The hand line shall contain an identifying tape showing the manufacturer's name, phone number, website, and year of manufacture.
				c.	The hand line shall contain a red safety/wear indicator that shall become visible as the rope nears the end of its useful life.
				d.	The rope shall hold knots well and be easily spliced. Rope shall not be subject to rotting, mildew, or moisture damage nor shall its length be affected by changes in humidity.
				e.	Tape ends before cutting. Attach to arbor with two half hitches or bowline and tape end to standing line with electrical tape.
				f.	Hand lines shall be SureGrip rope.
			15.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			16.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		B.	Line Shaft Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity, with the speed of descent controlled by a hydraulic speed regulator. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshal, the NYC Material and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have steel wheel roller guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10 feet (305 mm) long sections and can be field cut.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. A 14 ga. (1.98 mm) steel channel track, entirely enclosed except for a slot in the side, shall be bolted to the inside of each smoke pocket to carry the guide rollers. Channels shall be anchored to the walls on 4 feet-0 inch (1.2 m) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	Line Shaft Fire Curtain Hoist:
				a.	The hoist shall consist of a gearmotor assembly, a drum for each lift line, and interconnecting shafts. The gearmotor assembly shall include a brake release and a hydraulic speed regulator, allowing the curtain to close at a controlled rate of speed when the brake is released by the activation of the fire line. The hoist shall have a minimum1,400 lb (635 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				b.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a helical bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				c.	Drums.
					1)	Each helical drum shall be supported by a sturdy steel base, holding the elements of the drum assembly in proper alignment. Both ends of each drum shall be supported by a self-aligning flange bearing.
					2)	Alternate drums shall be threaded in opposite directions, to keep the batten from "walking" as its elevation changes.
					3)	Drums shall be interconnected by shafts with universal joints at each end. Shafts without universal joints are not acceptable.
				d.	Rotary Limit Switches:
					1)	Rotary limit switch assemblies shall have two or four independently adjustable switch/cam sets as required. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Rotary limit switches shall be driven directly or by roller chains. If roller chains are used, sprockets shall be pinned to prevent slipping and sized for maximum usable rotation of switch cams. The input shaft and drive chain shall be fully guarded.
					4)	Switches shall be mounted to the hoist base to allow for easy adjustment of the switch settings.
				e.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			9.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			10.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			11.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			12.	Lift Cables: The curtain lift cables shall be 1/4 inch (6.4 mm) diameter 7x19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a half pipe clamp.
			13.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		C.	Traction Drive Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070" (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have steel wheel roller guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10 feet (305 mm) long sections and can be field cut.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. A 14 ga. (1.98 mm) steel channel track, entirely enclosed except for a slot in the side, shall be bolted to the inside of each smoke pocket to carry the guide rollers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	Traction Style Fire Curtain Hoist:
				a.	The hoist shall consist of a traction sheave and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				b.	The iron or steel sheave shall be a minimum diameter of 40 times cable diameter with V-grooves for the number and diameter of lift lines required.
				c.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				d.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				e.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				f.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			9.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			10.	Loft Block:
				a.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			11.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			12.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			13.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using pipe clamp.
			16.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
		D.	Drum Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457.2 mm) at each side of the proscenium opening and 24 inch (609.6 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.778 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 3 inch (76.2 mm) yield pad filled with ZetexPlus.
			4.	Sides of curtain shall have steel wheel roller guides every 18 inch (457.2 mm), securely fastened to a 6 inch (152.4 mm) hem with at least three bolts or rivets, or as required by the governing code.
			5.	Metal Edge Channel:
				a.	Fire curtain vertical edges shall have u-shaped, 16 gauge (1.6 mm) steel reinforcement 6 inch (152 mm) deep.
				b.	Channels shall attach to the curtain using the curtain guide bolts.
				c.	Channels are supplied in 5 feet (1.5 m) and 10 feet (305 mm) long sections and can be field cut.
			6.	Smoke Pockets: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 6 inch deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. A 14 ga. (1.98 mm) steel channel track, entirely enclosed except for a slot in the side, shall be bolted to the inside of each smoke pocket to carry the guide rollers. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
			7.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			8.	Drum Style Fire Curtain Hoist:
				a.	The hoist shall be mounted to allow dual drive lines to travel from either side of the fire curtain centerline, over loft blocks and to the hoist drum.
				b.	The hoist shall consist of a cable drum and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				c.	The drum shall be a minimum diameter of 30 times cable diameter with helical grooves for the number and diameter of lift lines required.
				d.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				e.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				f.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				g.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			9.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			10.	Loft Block:
				a.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			11.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to permit normal motorized operation of the fire curtain and emergency closure without power.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			12.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			13.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			14.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six fusible links, side mounting pulleys as required, and two fire line release devices, each mounted in enclosures. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			15.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			16.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
	2.26	FIRE CURTAIN SYSTEMS, STRAIGHT LIFT CURTAIN, PROSCENIUM OPENING GREATER THAN 30'T x 50'W
		A.	Line Shaft Hoist:
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457 mm) at each side of the proscenium opening and 24 inch (610 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building Code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 6 inch (152.4 mm) yield pad filled with ZetexPlus.
			4.	Fire Safety Curtain Frame: The fully framed fire safety curtain shall be designed and fabricated to sustain a minimum uniform wind load of 2 psf, or as indicated by code. The attachment of the curtain to the frame shall be made to facilitate future maintenance and repair. The frame shall remain engaged in its guides and operate under the full range of temperatures and wind conditions.
			5.	Each side of the curtain frame shall have two bronze guides, securely fastened to the curtain frame.
			6.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 ounces per square yard (0.91 KG/sq m).
			7.	Line Shaft Fire Curtain Hoist:
				a.	The hoist shall consist of a gearmotor assembly, a drum for each lift line, and interconnecting shafts. The gearmotor assembly shall include a brake release and a hydraulic speed regulator, allowing the curtain to close at a controlled rate of speed when the brake is released by the activation of the fire line. The hoist shall have a minimum 1,400lb. (635 KG) lifting capacity at a rate of 25 feet/min (0.127 m/s).
				b.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a helical bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				c.	Drums:
					1)	Each helical drum shall be supported by a sturdy steel base, holding the elements of the drum assembly in proper alignment. Both ends of each drum shall be supported by a self-aligning flange bearing.
					2)	Alternate drums shall be threaded in opposite directions, to keep the batten from "walking" as its elevation changes.
					3)	Drums shall be interconnected by shafts with universal joints at each end. Shafts without universal joints are not acceptable.
				d.	Rotary Limit Switches:
					1)	Rotary limit switch assemblies shall have two or four independently adjustable switch/cam sets as required. Cams shall be driven by a geared assembly.
					2)	Switches shall have snap acting contacts.
					3)	Rotary limit switches shall be driven directly or by roller chains. If roller chains are used, sprockets shall be pinned to prevent slipping and sized for maximum usable rotation of switch cams. The input shaft and drive chain shall be fully guarded.
					4)	Switches shall be mounted to the hoist base to allow for easy adjustment of the switch settings.
				e.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self-protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			8.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			9.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six UL listed fusible links that release at 165 degree F (74 degree C), side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet-0 inch (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			10.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			11.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			12.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where the chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
			13.	Smoke Pockets with Track: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of an 8 inch (203 mm) deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (610 mm) centers. An angle iron, steel track shall be bolted to the side of the smoke pocket to carry the guides. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
		B.	Traction Drive Hoist.
			1.	General Description:
				a.	Furnish and install a motorized straight lift type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch 457 mm) at each side of the proscenium opening and 24 inch (610 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the International Building Code (2015), NFPA 80: Standard for Fire Doors and Other Opening Protectives, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. When the fire line is released, emergency closing shall occur at an average speed between 6 in/sec (152 mm/sec) and 24 in/sec (610 mm/sec) with the last 8 feet (2.4 m) taking more than 5 seconds.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 6 inch (152.4 mm) yield pad filled with ZetexPlus.
			4.	Fire Safety Curtain Frame: The fully framed fire safety curtain shall be designed and fabricated to sustain a minimum uniform wind load of 2 psf, or as indicated by code. The attachment of the curtain to the frame shall be made to facilitate future maintenance and repair. The frame shall remain engaged in its guides and operate under the full range of temperatures and wind conditions.
			5.	Each side of the curtain frame shall have two bronze guides, securely fastened to the curtain frame.
			6.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			7.	Traction Style Fire Curtain Hoist:
				a.	The hoist shall consist of a traction sheave and gearmotor assembly. The gearmotor assembly shall consist of a high efficiency gearbox, brake release and hydraulic speed regulator, allowing the curtain to close at a controlled rate of speed when the brake is released. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a lifting capacity sufficient to overcome the out of balance load required to lower the curtain at a rate of 25 feet per minute (0.13 m/s).
				b.	The sheave shall be a 20 inch (508 mm) diameter iron or steel sheave, with V-grooves for the number and diameter of lift lines required.
				c.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a helical bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				d.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Allen Bradley Bulletin 802T or equal.
				e.	Fixed Speed Starter:
					1)	The traction drive hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			8.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			9.	Loft Block:
				a.	The sheave shall have a 16 inch (406.4 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1,400lb (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have a cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			10.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (610 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			11.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to the wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			12.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, UL listed fusible links that release at 165 degree F (74 degree C), side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
				a.	Fusible links shall be spaced every 15 feet (4.6 m) along the length of the fire line. A fusible link shall be located no more than 7.5 feet (2.3 m) from the vertical rise of the fire line.
			13.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a pipe clamp.
			14.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			15.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where the chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
			16.	Smoke Pockets with Track: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a channel 4 inch (102 mm) deeper than the curtain frame and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. An angle steel track shall be bolted to the side of the smoke pocket to carry the guides. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers or as required to support the curtain.
		C.	Drum Hoist.
			1.	General Description:
				a.	Furnish and install a motorized framed type, automatically closing fire safety curtain for the proscenium opening indicated on the drawings. Curtain shall lap masonry not less than 18 inch (457 mm) at each side of the proscenium opening and 24 inch (610 mm) at the top of the proscenium opening.
				b.	The curtain shall be arranged to comply with the "International Building code (2006)", American National Standard E1.22-2009, other applicable codes and, in general, intercept fire and smoke and prevent glow from severe fire on the stage from showing on the auditorium side for at least thirty (30) minutes in order to permit safe egress of all people from the auditorium.
				c.	The curtain shall close by gravity due to over-balance of the curtain as specified below. Emergency closing shall occur as specified in NFPA 80 or as required by local codes when the fire line is released or fusible links separate.
			2.	Special Conditions: It is the intention of this specification to provide a fully functioning fire safety curtain system. Actual equipment and components shall reflect building conditions and approved construction drawings. All dimensions shall be field verified by the Rigging Contractor.
			3.	ZetexPlus Fire Safety Curtain: The curtain shall be fabricated from tightly woven J.R. Clancy ZetexPlus 1210-ZP non-wire inserted, non-asbestos, non-carcinogenic silica based cloth, 12 x 7 weave of .070 inch (1.8 mm) thickness weighing at least 40 ounces per square yard (1.35 KG/sq m). The curtain shall be listed and approved by the State of California Fire Marshall, the NYC Material Acceptance and Equipment Acceptance Division, and shall bear a certification label from a nationally recognized listing agency. All strips of fabric shall be in continuous lengths running the full height of the curtain. There shall be no horizontal seams. Each seam shall be sewn with two lines of stitching using fiberglass thread. Top and bottom pockets shall be 6 inch (152.4 mm). The bottom pocket shall be equipped with a 6 inch(152.4 mm) yield pad filled with ZetexPlus.
			4.	Fire Safety Curtain Frame: The fully framed fire safety curtain shall be designed and fabricated to sustain a minimum uniform wind load of 2 psf, or as indicated by code. The attachment of the curtain to the frame shall be made to facilitate future maintenance and repair. The frame shall remain engaged in its guides and operate under the full range of temperatures and wind conditions.
			5.	Each side of the curtain frame shall have two bronze guides, securely fastened to the curtain frame.
			6.	Smoke Seal: Provide a smoke seal consisting of a triple layer of folded fabric fastened above the proscenium with a mounting clamp so it rubs the curtain and seals the top of the opening. The fabric shall be Zetex 800 cloth with a minimum weight of 27 oz. per square yard (0.91 KG/sq m).
			7.	Drum Style Fire Curtain Hoist:
				a.	The hoist shall be mounted to allow dual drive lines to travel from either side of the fire curtain centerline, over loft blocks and to the hoist drum.
				b.	The hoist shall consist of a cable drum and a manual clutch with throw out fork, direct coupled and keyed to the output shaft of the gearbox. The entire assembly shall be mounted on a heavy channel base. The hoist shall have a 2,000lb (907.2 KG) lifting capacity at a rate of 25 feet per minute (0.127 m/s).
				c.	The drum shall be a minimum diameter of 30 times cable diameter with helical grooves for the number and diameter of lift lines required.
				d.	The clutch shall be rated for the applied load. The clutch lever arm shall be kept engaged by tension in the fire line that passes through a pulley in the handle. Release of the clutch is ensured by an overbalance weight acting on the arm.
				e.	Gearmotor:
					1)	The motor, primary brake and gearbox shall be an integrated unit, with the first stage pinion gear and the primary brake both mounted directly on the motor's armature shaft. No couplings shall be permitted between the motor, primary brake and gear reducer.
					2)	Motor shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
					3)	The gear reducer shall be a combination helical/bevel reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
					4)	Brakes shall be normally spring applied, direct acting, electrically released, and equipped with a manual release. The brake shall be an AC / DC electro-magnetic unit with a minimum retarding torque equal to 200 percent of motor full load torque.
				f.	Four direct struck limit switches shall be installed so that they are operated by the fire curtain arbor. These shall provide top and bottom limits of travel as well as overtravel functions. The direct struck limit switches shall be heavy duty, lever operated rotary head units, with positive opening contacts. Direct struck limit switches shall be Telemecanique ZCKJ series or equal.
				g.	Fixed Speed Starter:
					1)	The hoist shall be controlled by a UL 508E listed, full voltage, self protected, reversing starter. Enclosure shall be NEMA 12 with hinged, latching cover. The interior of the starter cabinet shall be "touch safe" per IEC 204-1 "Protection against direct contact" rules.
					2)	The NEMA/IEC, magnetically operated, mechanically and electrically interlocked, reversing starter shall be sized to match the hoist motor horsepower and shall be rated for plugging and jogging. Units shall incorporate UL 508E Type 2, non-welding, positive break contactors.
					3)	Overcurrent protection shall be provided by an IEC Class 10 overload. Short circuit protection shall be provided by a circuit breaker.
					4)	Starters shall be wired so that operation of the normal end of travel limit switches shall only allow movement away from the limit switch. Operation of an overtravel limit switch shall open the line contactor, and shall not allow further movement in either direction. A spring return toggle switch shall be housed inside the starter cabinet to allow override of the overtravel limits for resetting purposes.
			8.	Control Stations: Two control stations shall be provided in wall mounted NEMA 12 enclosures. Each shall contain hold to operate (dead man) Up and Down pushbuttons, and a mushroom head emergency stop pushbutton.
			9.	Loft Block:
				a.	The sheave shall have a 16 inch (406.4 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
				b.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle.
				c.	Side plates shall be a minimum of 10-gauge(3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
				d.	The block and associated mounting hardware shall have a recommended working load of at least 1,400lb (635 KG), and shall be designed for use in either upright or underhung usage.
				e.	Loft blocks shall have a cast iron sheave grooved for one 3/8 inch (9.5 mm) lift line.
			10.	Counterweight Arbor:
				a.	Arbor shall be long enough to accommodate counterweights to balance the fire curtain and related equipment.
				b.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
				c.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the arbor inner nuts, and a forged steel eye for the hand line tie off.
				d.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.1 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
				e.	The top and bottom shall have bronze guides to engage the lattice track.
				f.	Provide 14 gauge (1.98 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet (610 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
			11.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with formed brackets alternating front and back on 2 feet centers. Back brackets shall contain two 9/16 inch (14.3 mm) diameter holes for proper anchorage to the wall.
				b.	A fabricated steel bracket shall support the bottom of the lattice. Bracket shall have ample clearance for passage of hand line.
			12.	Fire line System: The manual fire line release system shall consist of a 1/8 inch (3.2 mm) diameter wire rope, with six UL listed fusible links that release at 165 degree F (74 degree C), side mounting pulleys as required, and two fire line release devices, each mounted in a steel enclosure with acrylic viewing window that contains a positive method to release the fire line. Devices shall be mounted 5 feet (1,524 mm) above the stage floor on each side of the proscenium. All other components such as round weight arbors, arbor guards, floor pulleys, etc. required to form a fully functional fire line release system shall be provided.
			13.	Lift Cables: The curtain lift cables shall be 3/8 inch (9.5 mm) diameter 7 x 19 galvanized utility cable as specified. Cables shall be terminated with corresponding cable thimbles and two forged cable clips or a Swage sleeve fitting at each end. The curtain end of each cable shall be attached to the batten using a 1/2 inch x 6 inch (12.7 mm x 152.4 mm) turnbuckle and pipe clamp.
			14.	Battens: Battens shall be made of 2 inch (50.8 mm) I.D. nominal, schedule 40 black iron pipe.
			15.	Safety Chains: Supply one more safety chain than the number of lift cables. 1/4 inch (6.4 mm) minimum, proof coil chains shall be located between lift cables except at the ends where the chains shall be 12 inch (304.8 mm) or less from the end of the batten. Chains shall be attached to the top of the curtain with pipe clamps around the top of the batten and chain shackles. The other end shall be appropriately attached to the building structure.
			16.	Smoke Pockets with Track: Furnish and install one pair of smoke pockets to extend from the stage floor to a point above the top of the raised curtain or to the height specified in the drawings. Pockets shall consist of a 8 inch (203 mm) deep "Z" channel formed from 1/4 inch (6.4 mm) steel plate and a 1/4 inch x 18 inch (6.4 mm x 457.2 mm) steel plate which shall be bolted to the channels on 2 feet-0 inch (609.6 mm) centers. An angle iron, steel track shall be bolted to the side of the smoke pocket to carry the guides. Channels shall be anchored to the walls on 4 feet-0 inch (1,219 mm) centers.
	2.27	FIRE CURTAIN SYSTEMS, CURTAIN ACCESSORIES
		A.	Dashpot:
			1.	Dash Pot:
				a.	The hydraulic dash pot shall be sized and valved to fully decelerate a free falling fire safety curtain over the last 10 feet (305 mm) of curtain travel.
				b.	The top sheave shall be a 12 inch (304.8 mm) diameter cast iron sheave with tapered roller bearings. It shall be connected to a piston rod with 5 feet (1.52 m) of travel.
				c.	The cylinder shall be fabricated from seamless tubing. Provision shall be made for automatically releasing the oil and returning the unit to an "at rest condition".
				d.	Provide a fluid reservoir, flow control valve, an oil fill cap and a drain plug.
				e.	Maximum dashpot load is 1250 lbs (567 KG).
			2.	Dash Pot Line: The 3/8 inch (9.53 mm) diameter dashpot line shall begin at a suitable tieoff point on the structure, travel around the dashpot sheave, through a hole in the arbor stop bracket, over a top sheave/s and end at a round weight arbor with safety chain. A swaged ball on the line shall engage the hole in the arbor and activate the dashpot to decelerate the fire curtain.
		B.	Dashpot - Heavy Duty:
			1.	Dash Pot:
				a.	The hydraulic dash pot shall be sized and valved to fully decelerate a free falling fire safety curtain within the last 10 feet (3 m) of curtain travel.
				b.	The top sheave shall be a 12 inch (304.8 mm) diameter, steel sheave with tapered roller bearings and heavy duty side plates. It shall be connected to a piston rod with 5 feet (1.52 m) of travel.
				c.	The cylinder shall be fabricated from seamless tubing. Provision shall be made for automatically releasing the oil and returning the unit to an "at rest condition".
				d.	Provide a fluid reservoir, flow control valve, an oil fill cap and a drain plug.
				e.	Maximum dashpot load is 3500 lbs (1,588 KG).
			2.	Dash Pot Line: The 3/8 inch (9.53 mm) diameter dashpot line shall begin at a suitable tieoff point on the structure, travel around the dashpot sheave, through a hole in the arbor stop bracket, over a top sheave/s and end at a round weight arbor with safety chain. A swaged ball on the line shall engage the hole in the arbor and activate the dashpot to decelerate the fire curtain.
		C.	Electrical Fire Line Release:
			1.	Product: Sure-Guard II.
			2.	The fire curtain shall be equipped with an electro-mechanical fire line release mechanism operated by a Sure-Guard II, activated by normally open or normally closed devices including rate of rise heat detectors, smoke detectors, emergency switches, etc. (furnished and installed by others) or by release of tension in the fire line. A switch shall be mounted in the release mechanism enclosure for testing system operation. Activation of the mechanism shall release tension in the fire line which, in turn, allows the fire curtain arbor to rise and the fire curtain to close in the normal manner. The release unit shall incorporate three pulleys permitting its attachment to the fireline at any point and to help prevent accidental release.
			3.	The release shall contain an integral sealed, rechargeable "Gel Pac" battery and charger to provide emergency power during power interruptions. A charged battery shall keep the curtain raised for a half hour minimum without building power. The release shall operate from a 120 VAC power source provided by others.
			4.	The electrical fire line release shall be UL Listed.
			5.	The fire line release system shall be the Sure-Guard II.
		D.	Rate of Rise Heat Detector:
			1.	A heat detector that closes a normally open electrical contact at a fixed temperature or at a temperature rise of 15 degree F (9.4 degree C) in one minute.
			2.	Rating: 3.0A at 6 to125 VAC, 1.0 A at 6 to 24VAC, 0.3 A 125 VDC, and 0.1 A VDC.
			3.	UL/ULC rating temperature - 135 degree F (57.2 degree C).
			4.	UL/ULC maximum temperature at ceiling - 100 degree F (37.8 degree C).
	** NOTE TO SPECIFIER ** Provide heat resistant border curtains in the sizes, color (tan or black) and quantities listed. Delete if not required.
		E.	Fire Curtain Systems, Heat Resisting Border:
			1.	Heat resistant border curtains shall be fabricated from ZetexPlus 800 fabric, rated for 1,500 degree F (815.6C) continuous temperature. The fabric shall be woven from highly texturized silica yarn with a proprietary high temperature treatment, and a weight of 25.5 oz. per square yard.
			2.	Borders shall have a sewn hem on all edges, with webbing, grommets, and ties on 12" (304.8 mm) centers on the top edge.
	2.28	COUNTERWEIGHT RIGGING
	** NOTE TO SPECIFIER **Select blocks and rigging required. Delete types not required.
		A.	12 inch Nylon Head Block - Upright.
			1.	Type: Single Purchase 12 inch (304.8 mm) Head Block.
			2.	The sheave shall be filled nylon, with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 3,000 lbs (1,360.8 KG).
			7.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
		B.	12 Inch Cast Iron Head Block - Upright.
			1.	Type: Single Purchase 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.34m) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 3,000 lbs (1,360 KG).
			7.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		C.	12 Inch Nylon Head Block - Underhung.
			1.	Type: Single Purchase 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be filled nylon with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Auxiliary base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs. (1,134 KG).
			7.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		D.	12 Inch Cast Iron Head Block, Underhung.
			1.	Type: Single Purchase 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs (1,1334 KG).
			7.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		E.	16 Inch Cast Iron Head Block - Upright.
			1.	Type: Single Purchase 16 inch (406.4 mm) Head block .
			2.	The sheave shall be an iron casting with a 16 inch (406.4 mm) outer diameter. The sheave shall be equipped with a 1-1/2 inch (38.1 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2-1/2 inch (63.5 mm) x 2 inch (50.4 mm) x 1/4 inch (6.4 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 3,600 lbs. (1,633 KG).
			7.	Head blocks shall be grooved for eight 3/8 inch (9.5 mm) lift lines and one 1 inch (25.4 mm) hand line.
		F.	16 Inch Cast Iron Head Block - Underhung.
			1.	Type: Single Purchase 16 inch (406.4 mm) Head block.
			2.	The sheave shall be an iron casting with a 16 inch (406.4 mm) outer diameter. The sheave shall be equipped with a 1.5 inch (38.1 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2.5 inch x 2 inch x 1/4 inch (63.5 mm x 50.8 mm x 6.4 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Auxiliary base angles shall be a minimum 2.5 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 3,600 lbs (1,633 KG).
			7.	Head blocks shall be grooved for eight 3/8 inch (9.52 mm) lift lines and one 1 inch (25.4 mm) hand line.
	** NOTE TO SPECIFIER **Delete double purchase head blocks not required for manual counterweight rigging.
		G.	12 Inch DP, Nylon Head Block - Upright.
			1.	Type: Double Purchase 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be filled nylon, with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Double purchase blocks shall have punched angles and an additional pipe spacer properly placed to provide tie-off points for lift lines so that proper fleet angles into the arbor top sheave are maintained.
			6.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 3,000 lbs (1,7360.8 kg).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		H.	12 Inch DP, Cast Head Block - Upright.
			1.	Type: Double Purchase 12 inch (30.48cm) Head Block:
			2.	The sheave shall be an iron casting with a 12 inch (30.48cm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1-1/2 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.35 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Double purchase blocks shall have punched angles and an additional pipe spacer properly placed to provide tie-off points for lift lines so that proper fleet angles into the arbor top sheave are maintained.
			6.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 3,000lbs (1,360.8 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
		I.	12 Inch DP, Nylon Head Block - Underhung.
			1.	Type: Double Purchase 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be filled nylon with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.35 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Double purchase blocks shall have punched angles and an additional pipe spacer properly placed to provide tie-off points for lift lines so that proper fleet angles into the arbor top sheave are maintained.
			6.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs (1,134 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.35 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
		J.	12 Inch DP, Cast Iron Head Block - Underhung.
			1.	Type: Double Purchase 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Double purchase blocks shall have punched angles and an additional pipe spacer properly placed to provide tie-off points for lift lines so that proper fleet angles into the arbor top sheave are maintained.
			6.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs (1,134 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.05 mm) hand line.
		K.	16 Inch DP, Cast Iron Head Block - Upright.
			1.	Type: Double Purchase 16 inch (406.4 mm) Head block .
			2.	The sheave shall be iron casting with a 16 inch (406.4 mm) outer diameter. The sheave shall be equipped with a 1.5 inch (38.1 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2.5 inch x 2 inch x 1/4 inch (63.5 mm x 50.8 mm x 6.4 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a recommended working load of at least 3,600 lbs (1,633.9 KG).
			7.	Head blocks shall be grooved for eight 3/8 inch (9.52 mm) lift lines and one 1 inch (25.4 mm) hand line.
		L.	16 Inch DP, Cast Iron Head Block - Underhung.
			1.	Type: Double Purchase 16 inch (406 mm) Head block .
			2.	The sheave shall be iron casting with a 16 inch (406 mm) outer diameter. The sheave shall be equipped with a 1-1/2 inch (38.1 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2-1/2 inch x 2 inch x 1/4 inch (57 mm x 50.8 mm x 6.35 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Double purchase blocks shall have punched angles and an additional pipe spacer properly placed to provide tie-off points for lift lines so that proper fleet angles into the arbor top are maintained.
			6.	Auxiliary base angles shall be a minimum 2.5 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 3,600 lbs (1,633 KG).
			8.	Head blocks shall be grooved for eight 3/8 inch (9.53 mm) lift lines and one 1 inch (25.4 mm) hand line.
		M.	12 Inch WG, Nylon Head Block - Upright.
			1.	Type: Wire Guide 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be filled nylon, with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Blocks used in wire guide systems shall have tie-off points for the guide wires.
			6.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 3,000 lbs (1,360 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		N.	12 Inch WG, Cast Iron Head Block - Upright.
			1.	Type: Wire Guide 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be iron casting with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in and notched to allow clear passage of all cables.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Blocks used in wire guide systems shall have tie-off points for the guide wires.
			6.	Mounting clips shall be steel, 3/8 inch (9.5 mm) thick minimum with a welded toe at least as thick as the mounting steel and punched with two oval holes for 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 3,000 lbs (1,360.8 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		O.	12 Inch WG, Nylon Head Block - Underhung .
			1.	Type: Wire Guide 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be filled nylon with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Blocks used in wire guide systems shall have tie-off points for the guide wires.
			6.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs (1,134 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
		P.	12 Inch WG, Cast Iron Head Block - Underhung.
			1.	Type: Wire Guide 12 inch (304.8 mm) Head Block:
			2.	The sheave shall be an iron casting with a 12 inch (304.8 mm) outer diameter. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles for extra strength.
			5.	Blocks used in wire guide systems shall have tie-off points for the guide wires.
			6.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			7.	The block and associated mounting hardware shall have a recommended working load of at least 2,500 lbs (1,134 KG).
			8.	Head blocks shall be grooved for six or eight 1/4 inch (6.4 mm) lift lines and one 3/4 inch (19.1 mm) hand line.
	** NOTE TO SPECIFIER **Delete staggered sheave head blocks not required for manual counterweight rigging.
		Q.	Staggered Sheave Nylon Head Block.
			1.	Type: Staggered Sheave Head Block:
			2.	The block sheaves shall have 8.5 inch (215.9 mm) outside diameters, and shall be filled nylon. Each sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings. Sheaves shall be spaced in the housing so cables align with the hoist drum grooving to eliminate fleet angles.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle punched with a mounting hole pattern for clip attachment.
			4.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheaves. Side plates shall be bolted and welded to the base angles for strength.
			5.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a minimum recommended working load at least equal to the hoist capacity and associated stresses.
	** NOTE TO SPECIFIER ** Insert number of sheave grooves required for project.
			7.	Head blocks shall have ___ sheaves grooved for one 1/4 inch (6.4 mm) lift line each.
		R.	Staggered Sheave Cast Iron Head Block.
			1.	Type: Staggered Sheave Head Block:
			2.	The block sheaves shall be iron castings with 8.5 inch (215.9 mm) outside diameters. Each sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings. Sheaves shall be spaced in the housing so cables align with the hoist drum grooving to eliminate fleet angles.
			3.	Base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle punched with a mounting hole pattern for clip attachment.
			4.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheaves. Side plates shall be bolted and welded to the base angles for strength.
			5.	Auxiliary base angles shall be a minimum 2 inch x 1.5 inch x 1/4 inch (50.8 mm x 38.1 mm x 6.4 mm) angle with the short leg turned in. Angles shall be supplied with punched holes and 1/2 inch (12.7 mm) bolts, flat washers and lock nuts.
			6.	The block and associated mounting hardware shall have a minimum recommended working load at least equal to the hoist capacity and associated stresses.
	** NOTE TO SPECIFIER ** Insert number of sheave grooves required for project.
			7.	Head blocks shall have sheaves grooved for one 1/4 inch (6.4 mm) lift line each,.
				a.	Number of Sheave Grooves: ______.
	** NOTE TO SPECIFIER **Delete loft blocks not required for manual counterweight rigging.
		S.	8 Inch Nylon Universal Loft Block.
			1.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings.
			2.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			3.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	The block and associated mounting hardware shall have a recommended working load of at least 750 lbs. (340.2 KG), and shall be designed for use in either upright or underhung usage.
			5.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		T.	8 Inch Nylon Universal Loft Block.
			1.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67 inch) diameter shaft and two tapered roller bearings.
			2.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			3.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	The block and associated mounting hardware shall have a recommended working load of at least 750 lbs. (340.2 KG), and shall be designed for use in either upright or underhung usage.
			5.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		U.	8 Inch Cast Iron Universal Loft Block.
			1.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 17 mm (0.67in.) diameter shaft and two sealed, precision ball bearings.
			2.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			3.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (227 KG) and shall be designed for use in either upright or underhung usage.
			5.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		V.	8 Inch Cast Iron Universal Loft Block.
			1.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 17 mm (0.67in.) diameter shaft and two tapered roller bearings.
			2.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			3.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (227 KG) and shall be designed for use in either upright or underhung usage.
			5.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		W.	8 Inch Nylon Universal Loft Block - 2 Line.
			1.	Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings.
			3.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			4.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 750 lbs. (340.2 KG), and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		X.	8 Inch Nylon Universal Loft Block - 2 Line.
			1.	Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			4.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 750 lbs. (340.2 KG), and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		Y.	8 Inch Cast Iron Universal Loft Block - 2 Line.
			1.	Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be an iron casting, with two machined grooves. The sheave shall be equipped with a 17 mm diameter shaft and two sealed, precision ball bearings.
			3.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			4.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG) per line and 750 lbs. (340.2 KG) total, and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		Z.	8 Inch Cast Iron Universal Loft Block - 2 Line.
			1.	Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with two machined grooves. The sheave shall be equipped with a 17 mm diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			4.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG) per line and 750 lbs. (340.2 KG) total, and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		AA.	8 Inch Nylon Loft Block, Upright, 4 and 8 Line.
			1.	Loft Block - 4 and 8 Line:
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter, and shall be filled nylon. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 750 lbs. (340.2 KG) per line and 1300 lbs. (589.7 KG) total, and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for 4 or 8 - 1/4 inch (6.4 mm) lift lines.
		AB.	8 Inch Cast Iron Loft Block, Underhung, 4 and 8 Line.
			1.	Loft Block - 4 and 8 Line:
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter, and shall be an iron casting, with machined grooves. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
			4.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG) per line and 1300 lbs. (589.7 KG) total, and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for 4 or 8 - 1/4 inch (6.4 mm) lift lines.
		AC.	12 Inch Cast Iron Universal Loft Block.
			1.	The sheave shall have a 12 inch (304.8 mm) pitch diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			2.	Base angles shall be a minimum 1.5 inch x 2 inch x 3/16 inch (38.1 mm x 50.8 mm x 4.76 mm) angle.
			3.	Side plates shall be a minimum of 10-gauge steel (3.57 mm), and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	Loft blocks shall be grooved for one 1/4 inch or 3/8 inch (6.4 mm or 9.52 mm) lift line.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 700 lbs. (317.5 KG) for 1/4 inch (6.4 mm) cable or 1050 lbs. (476.3 KG) for 3/8 inch (9.52 mm) cable, and shall be designed for use in either upright or underhung usage.
		AD.	16 Inch Steel, Universal Loft Block.
			1.	The steel sheave shall have a 16 inch (406.4 mm) diameter with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			2.	Base angles shall be a minimum 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angle.
			3.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	The block and associated mounting hardware shall have a recommended working load of at least 1400 lbs (635 KG), and shall be designed for use in either upright or underhung usage.
			5.	Loft blocks shall be grooved for one 3/8 inch (9.52 mm) lift line.
	** NOTE TO SPECIFIER **Delete 19 series cable loft blocks not required for manual counterweight rigging.
		AE.	8 Inch Nylon Loft Block, Underhung (19 Series).
			1.	Underhung Loft Block:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			6.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		AF.	8 Inch Nylon Loft Block, Underhung (19 Series).
			1.	Underhung Loft Block:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			6.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		AG.	8 Inch Cast Iron Loft Block, Underhung (19 Series).
			1.	Underhung Loft Block:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting with a machined groove. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			6.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		AH.	8 Inch Cast Iron Loft Block, Underhung (19 Series).
			1.	Underhung Loft Block:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting with a machined groove. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			6.	Loft blocks shall be grooved for one 1/4 inch (6.4 mm) lift line.
		AI.	8 Inch Nylon Loft Block, Underhung (19 Series) - 2 Line.
			1.	Underhung Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cutout to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			6.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		AJ.	8 Inch Nylon Loft Block, Underhung (19 Series) - 2 Line.
			1.	Underhung Loft Block - 2 Line:
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter, and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cutout to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			6.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		AK.	8 Inch Cast Iron Loft Block, Underhung (19 Series) - 2 Line.
			1.	Underhung Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with two machined grooves. The sheave shall be equipped with a 17 mm (.67 inch) diameter shaft and two sealed, precision ball bearings.
			3.	Side plates shall be a minimum of 10-gauge steel (3.57 mm), with a cutout to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The side plates shall be rigidly fastened together with a minimum of three 1/4 inch (6.4 mm) bolts and pipe, two of which prevent cables from escaping the sheave grooves.
			6.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			7.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		AL.	8 Inch Cast Iron Loft Block, Underhung (19 Series) - 2 Line.
			1.	Underhung Loft Block - 2 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting, with two machined grooves. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge steel (3.57 mm), with a cutout to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The side plates shall be rigidly fastened together with a minimum of three 1/4 inch (6.4 mm) bolts and pipe, two of which prevent cables from escaping the sheave grooves.
			6.	The block shall have a recommended working load of at least 500 lbs. (226.8 mm).
			7.	Loft blocks shall be grooved for two 1/4 inch (6.4 mm) lift lines.
		AM.	8 Inch Nylon Loft Block, Underhung (19 Series) - 4 and 8 Line.
			1.	Underhung Loft Block - 4 and 8 Line:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 4 inch (101.6 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The side plates shall be rigidly fastened together with a minimum of three 1/4 inch (6.4 mm) bolts and pipe, two of which prevent cables from escaping the sheave grooves.
			6.	The block shall have a recommended working load of at least 700 lbs. (317.5 KG).
			7.	Loft blocks shall be grooved for 4 or 8 - 1/4 inch (6.4 mm) lift lines.
		AN.	8 inch Cast Iron Loft Block, Underhung (19 Series) - 4 and 8 Line.
			1.	Underhung Loft Block - 4 and 8 Line:
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter, and shall be an iron casting, with machined grooves. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.05 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 4 inch (101.6 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The side plates shall be rigidly fastened together with a minimum of three 1/4 inch (6.4 mm) bolts and pipe, two of which prevent cables from escaping the sheave grooves.
			6.	The block shall have a recommended working load of at least 700 lbs (317.5 KG).
			7.	Loft blocks shall be grooved for 4 or 8 - 1/4 inch (6.4 mm) lift lines.
		AO.	12 Inch Cast Iron Loft Block, Underhung (19 Series).
			1.	Underhung Loft Block:
			2.	The sheave shall have a 12 inch (304.8 mm) outside diameter, and shall be an iron casting, with a machined groove. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 675 lbs (306.2 KG).
			6.	Loft blocks shall be grooved for one 1/4 inch or 3/8 inch (6.4 mm or 9.52 mm) lift line.
	** NOTE TO SPECIFIER **Delete 3/16 inch (4.8 mm) cable loft blocks not required for manual counterweight rigging.
		AP.	8 Inch Nylon Loft Block.
			1.	Underhung Loft Block:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two sealed, precision ball bearings.
			3.	Side plates shall be a minimum of 10-gauge steel (3.57 mm), with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 KG).
			6.	Loft blocks shall be grooved for one 3/16 inch (4.76 mm) lift line.
		AQ.	8 Inch Nylon Loft Block.
			1.	Underhung Loft Block:
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge steel (3.57 mm), with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.1 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 5 inch (127 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The block shall have a recommended working load of at least 500 lbs. (226.8 KG).
			6.	Loft blocks shall be grooved for one 3/16 inch (4.76 mm) lift line.
		AR.	8 Inch Nylon Universal Loft Block.
			1.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (.67in) diameter shaft and two tapered roller bearings.
			2.	Base angles shall be a minimum 1-1/2 inch x 1-1/2 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle punched with a universal hole pattern for easy installation.
			3.	Side plates shall be a minimum of 12-gauge steel (2.78 mm), and shall fully enclose the sheave. Side plates shall be bolted to the base angles.
			4.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG), and shall be designed for use in either upright or underhung usage.
			5.	Loft blocks shall be grooved for one 3/16 inch (4.76 mm) lift line.
		AS.	8 inch Nylon Loft Block, Underhung - 8LN.
			1.	Underhung Loft Block - 8 Line:
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, with a cut-out to grasp the beam flange.
			4.	A machined steel 3/4 inch (19.05 mm) drawbolt and steel clip shall grasp the opposing beam flange and allow a 4 inch (101.6 mm) grip adjustment to accommodate a range of beam sizes.
			5.	The side plates shall be rigidly fastened together with a minimum of three 1/4 inch (6.45 mm) bolts and pipe, two of which prevent cables from escaping the sheave grooves.
			6.	The block shall have a recommended working load of at least 700 lbs (317.5 KG).
			7.	Loft blocks shall be grooved for eight, 3/16 inch (4.76 mm) lift lines.
		AT.	8 Inch Nylon Loft Block, Upright, 8LN.
			1.	Loft Block - 8 Line:
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter, and shall be filled nylon. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.763 mm) angle.
			4.	Side plates shall be a minimum of 10-gauge steel (3.57 mm), and shall fully enclose the sheave. Side plates shall be bolted and welded to the base angles.
			5.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.8 KG) per line and 1300 lbs. (598.7 KG) total load, and shall be designed for use in either upright or underhung usage.
			6.	Loft blocks shall be grooved for eight, 3/16 inch (4.763 mm) lift lines.
		AU.	Idler Assemblies.
			1.	Loft block idlers shall be provided to carry the weight of the cables and prevent rubbing against adjacent block side plates. They shall not be installed to carry line loads or to act as deflector or mule blocks.
			2.	Idler assemblies shall consist of one or two 3-1/2 inch (88.9 mm) diameter, 3-line filled ABS idler pulleys mounted on the side of the loft block housing.
			3.	The sheaves shall have 1/4 inch (6.4 mm) cable grooves and two sealed, precision ball bearings and shall ride on a 1/4 inch (6.4 mm) shaft inserted through the block housing.
			4.	A 1/8 inch (3.2 mm) diameter bail shall mount in the housing and captivate the cables in the grooves.
			5.	All nuts shall be of the nylon insert self-locking type.
	** NOTE TO SPECIFIER **Delete if not required for manual counterweight rigging.
		AV.	Pivot Bracket.
			1.	Pivot brackets mount loft blocks to beams with more than 1-1/2 degrees of slope.
			2.	They consist of a pair of angles that bolt to the block base angles and a matching pair of angles that mount to the beam with clips. A 3/4 inch (19.1 mm) diameter threaded rod connects the two sets of angle to provide a hinge point.
	** NOTE TO SPECIFIER **Delete mule block not required for manual counterweight rigging.
		AW.	8 Inch Cast Iron Mule Block - 1 and 2 Line.
			1.	8 inch (203 mm) Mule Blocks - 1 and 2 Line.
			2.	The sheave shall have an 8-1/2 inch (215.9 mm) outside diameter, and shall be an iron casting with a machined groove.
			3.	The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two, sealed, precision ball bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203.2 mm) structural steel channel or a 3 gage (6.2 mm) formed channel base. Brace tubes with a minimum size of 2 inch x 2 inch x 3/16 inch (50.8 mm x 50.8 mm x 4.8 mm) shall be welded to both side plates and the channel base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.52 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load maximum of 500 lbs. (226.8 KG) per line.
			8.	Mule blocks shall be grooved for one or two 1/4 inch (6.4 mm) lines.
		AX.	8 Inch Cast Iron Mule Block - 1 and 2 Line.
			1.	8 inch (203 mm) Mule Blocks - 1 and 2 Line.
			2.	The sheave shall have an 8.5 inch (215.9 mm) outside diameter and shall be an iron casting with a machined groove.
			3.	The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two tapered roller bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203.2 mm) structural steel channel or a 3 gage (6.2 mm) formed channel base. Brace tubes with a minimum size of 2 inch x 2 inch x 3/16 inch (50.8 mm x 50.8 mm x 4.8 mm) shall be welded to both side plates and the channel base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.52 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load maximum of 500 lbs. (226.8 KG) per line.
			8.	Mule blocks shall be grooved for one or two 1/4 inch (6.4 mm) lines.
		AY.	8 Inch Cast Iron Mule Block - 4 and 8 Line.
			1.	8 inch (203 mm) Mule Blocks - 4 and 8 Line.
			2.	The sheave shall have an 8-1/2 inch (215 mm) outside diameter and shall be an iron casting with machined grooves.
			3.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203.2 mm) structural steel channel or a 3 gauge (6.2 mm) formed channel base. Brace tubes with a minimum size of 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.35 mm) shall be welded to both side plates and the channel base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.52 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load of at least 500 lbs. (226.8 KG) per line with a total load not to exceed 2000 lbs. (907.2 KG) using a 90 degree wrap or 1400 lbs. (635.0 kg) using a 180 degree wrap.
			8.	Mule blocks shall be grooved for four or eight 1/4 inch (6.4 mm) lines.
		AZ.	12 Inch Cast Iron Mule Block.
			1.	12 inch (304.8 mm) Mule Blocks:
			2.	The sheave shall have a 12 inch (304.8 mm) outside diameter and shall be an iron casting with a machined groove.
			3.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203 mm) structural steel channel or a 3 gauge (6.2 mm) formed channel base. Brace tubes with a minimum size of 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) shall be welded to both side plates and the channel base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.52 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load of at least 700 lbs. (317.5 KG) per line.
			8.	Total load of a one line block shall not exceed 700 lbs. (317.5 KG) using a 90 degree wrap or 700 lbs. (317.5 KG) using a 180 degree wrap.
			9.	Total load of a two line block shall not exceed 1400 lbs. (907.2 KG) using a 90 degree wrap or 1400 lbs. (907.2 KG) using a 180 degree wrap.
			10.	Total load of a four line block shall not exceed 2000 lbs. (408.23 KG) using a 90 degree wrap or 1400 lbs. (907.2 KG) using a 180 degree wrap.
			11.	Total load of a four line block shall not exceed 2000 lbs. (408.23 KG) using a 90 degree wrap or 1400 lbs. (907.2 KG) using a 180 degree wrap.
			12.	Mule blocks shall be grooved for 1, 2, 4, or 8 - 1/4 inch (6.4 mm) lines.
		BA.	8 Inch Nylon Mule Block - 2 Line.
			1.	8 inch (203 mm) Mule Blocks - 1 and 2 Line.
			2.	The sheave shall have an 8-1/2 inch (209.55 mm) outside diameter and shall be filled nylon.
			3.	The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two, sealed, precision ball bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203.2 mm) formed steel channel base. Bracing tubes with a minimum size of 2 inch x 2 inch x 3/16 inch (50.8 mm x 50.8 mm x 4.76 mm) shall be welded to both side plates and the base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.53 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load of at least 875 lbs. (385.55 KG) per line. Total load not to exceed 1750 lbs. (793.8 KG) for a 90 degree wrap and 1400 lbs. (635.0 KG) for a 180 degree wrap.
			8.	Mule blocks shall be grooved for one or two 1/4 inch (6.4 mm) or 3/16 inch (4.76 mm) lines.
		BB.	8 Inch Nylon Mule Block - 2 Line.
			1.	8 inch (203 mm) Mule Blocks - 1 and 2 Line.
			2.	The sheave shall have an 8-1/2 inch (209.55 mm) outside diameter and shall be filled nylon.
			3.	The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two tapered roller bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203.2 mm) formed steel channel base. Bracing tubes with a minimum size of 2 inch x 2 inch x 3/16 inch (50.8 mm x 50.8 mm x 4.76 mm) shall be welded to both side plates and the base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.53 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load of at least 875 lbs. (385.55 KG) per line. Total load not to exceed 1750 lbs. (793.8 KG) for a 90 degree wrap and 1400 lbs. (635.0 KG) for a 180 degree wrap.
			8.	Mule blocks shall be grooved for one or two 1/4 inch (6.4 mm) or 3/16 inch (4.76 mm) lines.
		BC.	8 Inch Nylon Mule Block - 4 and 8 Line.
			1.	8 inch (203.2 mm) Mule Block.
			2.	The sheave shall have an 8-1/2 inch (209.55 mm) outside diameter and shall be filled nylon.
			3.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			4.	Side plates shall be a minimum of 7-gauge (4.76 mm) steel, and shall fully enclose the sheave.
			5.	Side plates shall be fillet welded to an 8 inch (203.2 mm) formed steel channel base. Bracing tubes with a minimum size of 2 inch x 2 inch x 3/16 inch (50.8 mm x 50.8 mm x 4.76 mm) shall be welded to both side plates and the base for added strength.
			6.	There shall be a minimum of four 3/8 inch (9.525 mm) bolts with spacers between the side plates for structural strength and to prevent cables from escaping the sheave grooves.
			7.	The block shall have a recommended working load of at least 875 lbs. (396.9 KG) per 1/4 inch (6.4 mm) line and 525 lbs. (238.1 KG) per 3/16 inch (4.76 mm) line with a total load not to exceed 2000 lbs. (907.2 KG) using a 90 degree wrap or 1400 lbs. (635.0 kg) using a 180 degree wrap.
			8.	Mule blocks shall be series grooved for four or eight 1/4 inch (6.4 mm) or 3/16 inch (4.76 mm) lines.
	** NOTE TO SPECIFIER **Delete if not required for manual counterweight rigging.
		BD.	Swivel Stand.
			1.	The stand consists of a heavy pipe welded to a braced base plate. The plate may be punched for temporary attachment bolts but the base will be welded to the building structure after final alignment.
			2.	A swivel is factory welded to mule block. It shall have a tube at one end that fits over the vertical stand member and swivels for alignment. Bolts are for alignment but all connections shall be welded after alignment.
	** NOTE TO SPECIFIER **Delete if not required for manual counterweight rigging.
		BE.	Mule Stand.
			1.	The stand shall consist of a steel frame that is elevated to the required height and tilted to adjust the mule to the proper angle. The frame may be punched for temporary attachment bolts but the base will be welded to the building structure after final alignment.
	** NOTE TO SPECIFIER **Delete if not required for manual counterweight rigging. Delete Guide System Types "J", "A" or "T" not required for project.
		BF.	J-Guide System.
			1.	Vertical J's shall be 1-3/4 inch x 1-1/2 inch x 3/16 inch (44.45 mm x 38.1 mm x 4.76 mm) extruded aluminum members.
			2.	J-guides shall be held in place by extruded aluminum clips, which are bolted to the wall battens. The clips and J-guide shall be formed so that they lock together in accurate alignment. There shall be no need for holes or slots in the J-guides.
			3.	Horizontal wall battens shall be located on centers not to exceed 5 feet (1524 mm). Wall battens shall be 1-3/4 inch x 1-3/4 inch x 3/16 inch (44.45 mm x 44.45 mm x 4.76 mm steel angles with factory punched holes on 2 inch (50.8 mm) centers to allow J-guides to be located on 6 inch, 8 inch (152.4 mm, 203.2 mm) or other centers. (Locations with high seismic activity may require different batten spacing or sizes.).
			4.	Wall battens shall be held in place by adjustable wall knees, consisting of a 5/16 inch x 1.5 inch (7.93 mm x 38.1 mm) steel knee and an 11 gauge (3.18 mm) 1 inch x 2 inch (25.4 mm x 50.8 mm) formed, slotted channel to aid in alignment made necessary by irregularities in the wall.
			5.	There shall be a top stop batten, a bottom stop batten and a floor batten, all of which shall be made of 1-3/4 inch x 1-3/4 inch x 3/16 inch (44.45 mm x 44.45 mm x 4.76 mm) steel angle. The top and bottom stop battens shall each have a 2 inch x 2 inch (50 mm x 50 mm) hardwood bumper securely bolted to the stop battens by 1/4 inch x 2-1/2 inch (6.4 mm x 63.5 mm) carriage bolts, nuts, and washers.
			6.	All other members of the J-guide system shall be assembled using 5/16 inch (7.93 mm) hex head bolts, lock nuts and washers.
		BG.	A-Guide System.
			1.	The A-guides shall be 3.5 inch deep x 2 inch wide x 3/16 inch (88.9 mm x 50.8 mm x 4.76 mm) wall extruded aluminum members.
			2.	A-guides shall be held in place by extruded aluminum clips on each leg of the guide. The clips are bolted to the wall battens. The clips and A-guide shall be formed so that they lock together in accurate alignment. There shall be no need for holes or slots in the A-guides.
			3.	Horizontal wall battens shall be located on centers not to exceed 5ft (1.52 mm). (Locations with high seismic activity may require different spacing or sizes.) Wall battens shall be 1-3/4 inch x 1-3/4 inch x 3/16 inch (44.45 mm x 44.45 mm x 4.76 mm) steel angles with factory punched holes on 2 inch (50.8 mm) centers to allow A-guides to be located on 6 inch, 8 inch (152.4 mm x 203.2 mm) or other centers.
			4.	Wall battens shall be held in place by adjustable wall knees, consisting of a 5/16 inch x 1.5 inch (38.1 mm) steel knee and an 11 gauge (3.18 mm) 1 inch x 2 inch (25.4 mm x 50.8 mm) formed, slotted channel to aid in alignment made necessary by irregularities in the wall.
			5.	There shall be a top stop batten, a bottom stop batten and a floor batten, all of which shall be made of 1-3/4 inch x 1-3/4 inch x 3/16 inch (44.45 mm x 44.45 mm x 4.76 mm) steel angle. The top and bottom stop battens shall each have a 2 inch x 2 inch (50.8 mm x 50.8 mm) hardwood bumper faced with 1/4 inch x 2 inch (6.4 mm x 50.8 mm) neoprene securely bolted to the stop battens by 1/4 inch x 2-1/2 inch (6.4 mm x 63.5 mm) carriage bolts, nuts, and washers.
			6.	All other members of the A-guide system shall be assembled using 5/16 inch (7.94 mm) hex head bolts, lock nuts and washers.
		BH.	T-Guide System.
			1.	Vertical T-bars shall be 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x4.76 mm) steel members with factory punched mounting holes and slots.
			2.	T-bars shall be held in place and properly spaced by "U" shaped spreader plates formed from 1 inch x 3/16 inch (25.4 mm x 4.76 mm) steel, which are bolted to the wall battens.
			3.	Horizontal wall battens shall be located on centers not to exceed 5 feet (1524 mm). Wall battens shall be 1-3/4 inch x 1-3/4 inch x 3/16 inch (44.45 mm x 44.45 mm x 4.76 mm) steel angles with factory punched holes on 2 inch (50.5 mm) centers to allow J-guides to be located on 6 inch, 8 inch (152.4 mm, 203.2 mm) or other centers. (Locations with high seismic activity may require different batten spacing or sizes.).
			4.	Wall battens shall be held in place by adjustable wall knees, consisting of a 5/16 inch x 1.5 inch (7.93 mm x 38.1 mm) steel knee and an 11 gauge (3.18 mm) 1 inch x 2 inch (25.4 mm x 50.8 mm) formed, slotted channel to aid in alignment made necessary by irregularities in the wall.
			5.	There shall be a top stop batten, a bottom stop batten and a floor batten, all of which shall be made of 1-3/4 inch x 1-3/4 inch x 3/16 inch (44.45 mm x 44.45 mm x 4.76 mm) steel angle. The top and bottom stop battens shall each have a 2 inch x 2 inch (50.8 mm x 50.8 mm) hardwood bumper securely bolted to the stop battens by 1/4 inch x 2-1/2 inch (6.35 mm x 63.5 mm) carriage bolts, nuts, and washers.
			6.	All other members of the T-bar system shall be assembled using 5/16 inch (7.93 mm) hex head bolts, lock nuts and washers.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete arbors not required.
		BI.	Arbor: FrontLoader Front Loading Arbor - Single Purchase.
			1.	Arbor shall be of specified length, or long enough to accommodate counterweights to balance its pipe batten and related equipment, whichever is longer.
			2.	The arbor shall be comprised of a series of sloped shelves within individually accessible compartments at 24 inch (6100 mm) increments.
			3.	Each arbor compartment shall be designed to accommodate ANSI E1.4.1 compliant counterweight bricks 13-3/4 inches (349 mm) deep.
			4.	Arbor models available shall include for 6 inch (152 mm) wide bricks with a minimum guide spacing of 8 inches (203 mm) center to center, and models for 4 inch (102 mm) wide bricks with a minimum guide spacing of 6 inches (152 mm) center to center based on project requirements.
			5.	Arbor heights available shall include 6 feet (1829 mm) tall, 8 feet (2438 mm) tall, or 10 feet (3048 mm) tall (nominal) based on project requirements.
			6.	Compartment latching mechanism shall be a two stage rotary latch system designed to comply with the strength requirements of SAE J839 and FMVSS 206.
			7.	The pivot axial load shall meet or exceed 120 lb-in (13.55 N-m) torque.
			8.	Arbor housing shall be constructed of formed 12-gauge steel sheet.
			9.	Arbor gates shall be constructed of resistance welded bar in a grid (mesh) configuration.
			10.	Each 24 inch (6100 mm) tall (nominal) arbor gate shall be attached onto the arbor with two hinges rated for a minimum of 400 lbs (181 kg) hanging static load each.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete arbors not required.
		BJ.	Arbor: FrontLoader Front Loading Arbor - Double Purchase.
			1.	Arbor shall be of specified length, or long enough to accommodate counterweights to balance its pipe batten and related equipment, whichever is longer.
			2.	The arbor shall be comprised of a series of sloped shelves within individually accessible compartments at 24 inch (6100 mm) increments.
			3.	Each arbor compartment shall be designed to accommodate ANSI E1.4.1 compliant counterweight bricks 13-3/4 inches (349 mm) deep.
			4.	Arbor models available shall include for 6 inch (152 mm) wide bricks with a minimum guide spacing of 8 inches (203 mm) center to center, and models for 4 inch (102 mm) wide bricks with a minimum guide spacing of 6 inches (152 mm) center to center based on project requirements.
			5.	Arbor heights available shall include 6 feet (1829 mm) tall, 8 feet (2438 mm) tall, or 10 feet (3048 mm) tall (nominal) based on project requirements.
			6.	Compartment latching mechanism shall be a two stage rotary latch system designed to comply with the strength requirements of SAE J839 and FMVSS 206.
			7.	The pivot axial load shall meet or exceed 120 lb-in (13.55 N-m) torque.
			8.	Arbor housing shall be constructed of formed 12-gauge steel sheet.
			9.	Arbor gates shall be constructed of resistance welded bar in a grid (mesh) configuration.
			10.	Each 24 inch (6100 mm) tall (nominal) arbor gate shall be attached onto the arbor with two hinges rated for a minimum of 400 lbs (181 kg) hanging static load each.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete arbors not required.
		BK.	Arbor: J/T-Guide Single Purchase Arbor.
			1.	Arbor shall be of specified length, or long enough to accommodate counterweights to balance its pipe batten and related equipment, whichever is longer.
			2.	The arbor top shall be a 1/4 inch (6.4 mm) steel plate formed into a channel with 3 inch (76 mm) sides and punched to receive 8 cables. A bolt and spacer shall tie the legs together and provide a tie-off point for the hand line. The front of the arbor top shall carry a 1-1/2 inch (38 mm) high white set number.
			3.	The arbor bottom shall be of similar construction, with counterweight rests to keep the weights from resting on the inner arbor rod nuts.
			4.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch steel arbor rods and a 3/8 inch x 3 inch (9.5 mm x 76 mm) steel back plate. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
			5.	Two guide assemblies shall be provided, each comprised of UHMW plates between steel backup plates or molded plastic shoe assemblies with stiffening ribs and lock tabs, secured to the arbor by means of two 3/8 inch (9.5 mm) hex head bolts and lock nuts.
			6.	Provide 12-gauge (2.78 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 foot centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. The front retaining collar shall be welded to the top spreader plate.
			7.	Provide labels on the steel back plates showing the proper locations for the spreader plates.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete if not required.
		BL.	Arbor: J/T- Guide Single Purchase Arbor (Seismic).
			1.	Spreader plates shall be captured by the arbor rods and the back bar. They are located as normal with additional plates added inside at the arbor top and bottom. The top and bottom plates are held in place using the inner arbor rod nuts.
			2.	The spreader plates are 7 Ga. (4.7 mm) thick minimum and notched to ride around the edges of tee or J-guides without rubbing. This keeps the arbors attached to the guides, even if the arbor guide shoes are damaged during a seismic event.
			3.	The bottom spreader plate shall be equipped with counterweight rests to keep the weights from resting on the inner arbor rod nuts.
		BM.	Arbor: J/T-Guide Double Purchase Arbor.
			1.	Arbor shall be of specified length, or long enough to accommodate counterweights to balance its pipe batten and related equipment, whichever is longer.
			2.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) steel plate and 7 gauge (4.76 mm) formed side plates. These shall enclose an 8-1/2 inch (215.9 mm) outside diameter cast sheave with grooves as required. The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			3.	The arbor bottom shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 10 gauge (3.57 mm) formed side plates, with counterweight rests to keep the weights from resting on the inner arbor rod nuts. The side plates shall enclose an 8" (203.2 mm) outside diameter cast sheave with a groove for a 3/4 inch (19.05 mm) hand line. The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two sealed, precision ball bearings.
			4.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.05 mm) steel arbor rods and a 3/8 inch x 3 inch (9.52 mm x 76.2 mm) steel back plate. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
			5.	Two guide assemblies shall be provided, each comprised of UHMW plates between steel backup plates or molded plastic shoe assemblies with stiffening ribs and lock tabs, secured to the arbor by means of two 3/8 inch (9.52 mm) hex head bolts and lock nuts.
			6.	Provide 12-gauge (2.78 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2ft (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. The front retaining collar shall be welded to the top spreader plate.
			7.	Provide labels on the steel back plates showing the proper locations for the spreader plates.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete locking rails not required for guide system.
		BN.	Locking Rail: J/T-Guide Locking Rail.
			1.	Rope locks and index cards shall be mounted on a formed steel angle no smaller than 3-1/2 inch x 5 inch x 1/4 inch (88.9 mm x 127 mm x 6.4 mm).
			2.	The onstage edge of the rail shall be sloped and punched to receive formed clips which hold index cards centered on the installed sets. Provide one numbered plastic write-on card for each installed set.
			3.	Stanchions made from 1/2 inch x 3 inch (12.7 mm x 76.2 mm) flat bar shall be provided on 5 feet (1.52m) (maximum) centers.
			4.	The entire locking rail shall be designed and installed to withstand a minimum up load of 500 pounds per foot (226.8 KG per 304.8 mm) per AISC standards.
		BO.	Locking Rail: J/T-Guide, DP Locking Rail.
			1.	Rope locks and index cards shall be mounted on a formed steel angle no smaller than 3-1/2 inch x 5 inch x 1/4 inch (88.9 mm x 127 mm x 6.35 mm).
			2.	The onstage edge of the rail shall be sloped and punched to receive formed clips which hold index cards centered on the installed sets. Provide one numbered plastic write-on card for each installed set.
			3.	Stanchions made from 1/2 inch x 3 inch (12.7 mm x 76.2 mm) flat bar shall be provided on 5 feet (1.52m) (maximum) centers.
			4.	A 3 inch X 2 inch X 1/4 inch (76.2 mm x 50.8 mm x 6.4 mm) angle located on the rear of the stanchions shall be punched and furnished with anchor shackles for tying off the ends of the double purchased handlines.
			5.	The entire locking rail shall be designed and installed to withstand a minimum up load of 500 pounds per foot (226.8 KG per 304.8 mm) per AISC standards.
		BP.	Locking Rail: Gallery Locking Rail.
			1.	Rope locks and index cards shall be mounted on a formed steel angle no smaller than 3-1/2 inch x 5 inch x 1/4 inch (88.9 mm x 127 mm x 6.4 mm).
			2.	The onstage edge of the rail shall be sloped and punched to receive formed clips which hold index cards centered on the installed sets. Provide one numbered plastic write-on card for each installed set.
			3.	Stanchions made from 2 inch (50.8 mm) steel square tube shall be provided on 5 feet (1.54m) (maximum) centers. They shall be long enough to anchor to the edge of the gallery. A continuous 3 inch x 2 inch x 1/4 inch (76.2 mm x 50.8 mm x 6.35 mm) angle shall help anchor the rail to the gallery and serve as a kick rail. Expanded metal mesh shall be provided between the stanchions.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. The entire locking rail shall be designed and installed to withstand a minimum up load of 500 pounds per foot (226.8 KG per 304.8 mm) per AISC standards. Delete outrigger bracket if not required.
		BQ.	Outrigger Brackets:
			1.	Angle iron outrigger brackets shall be made of 3/16 inch x 1-3/4 inch x 1-3/4 inch (4.76 mm x 44.45 mm x 44.45 mm) angle and spaced not more than 10ft (304.8 mm) apart. The brackets shall be attached to the wall battens of the arbor guide system so that the batten is located 10ft (304.8 mm) above the gallery or stage floor. The brackets shall include clamps for attaching the batten.
			2.	The outrigger batten shall be made from 1.5 inch (38.1 mm) I.D., schedule 40 pipe extending the full length of the locking rail. Specifications are the same as other battens.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete compensating chain system if not required.
		BR.	Compensating Chain System:
			1.	A compensating chain system shall be provided to balance the transfer of weight of the lift lines from the batten to the arbor as counterweight sets are raised and lowered.
			2.	Roller chain is attached to the bottom of the arbor and to a T-Bar wall batten at the midpoint of the T-Bar battery. The T-Bars are spaced away from the wall battens so the chain travels in the space between the arbor back bars and the wall battens. Size the chain so that weight is added to the arbor to balance the cable weight added to the batten as the batten is lowered.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete floor block not required for guide system.
		BS.	Floor Block: Tension Floor Block.
			1.	10 inch (254 mm) Tension Floor Block:
			2.	The cast iron sheave shall have a 10 inch (254 mm) outside diameter and shall be an iron casting with a machined groove for a 3/4 inch (19.1 mm) rope.
			3.	The sheave shall be equipped with a 17 mm (0.67inch) diameter shaft and two sealed, precision ball bearings.
			4.	Side plates shall be a minimum of 3/16 inch (4.67 mm) steel plate.
			5.	The block shall have a minimum weight of 40 lbs. (18.1 KG) to properly tension the hand line.
			6.	A plastic kick tab shall be provided for adjustment of the rope tension.
			7.	The floor block shall be held in place and guided in the T-bar, J-bar, or A-bar guides by two guide shoe assemblies, each consisting of two guides and one spacer made of 5/16 inch (7.94 mm) thick steel plates. Each guide shall be secured to the housing by means of two 3/8 inch (9.52 mm) hex head bolts and nuts.
		BT.	Floor Block: Tension Floor Block.
			1.	12 inch (304.8 mm) Tension Floor Block:
			2.	The cast iron sheave shall have a 12 inch (304.8 mm) outside diameter and shall be an iron casting with a machined groove for a 3/4 inch (19.05 mm) rope.
			3.	The sheave shall be equipped with a 17 mm (0.67inch) diameter shaft and two sealed, precision ball bearings.
			4.	Side plates shall be a minimum of 3/16 inch (4.763 mm) steel plate.
			5.	The block shall have a minimum weight of 48 lbs. (21.8 KG) to properly tension the hand line.
			6.	A plastic kick tab shall be provided for adjustment of the rope tension.
			7.	The floor block shall be held in place and guided in the T-bar, J-bar, or A-bar guides by two guide shoe assemblies, each consisting of two guides and one spacer made of 5/16 inch (7.94 mm) thick steel plates. Each guide shall be secured to the housing by means of two 3/8 inch (9.52 mm) hex head bolts and nuts.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Wire guides can be used to guide the travel path of counterweight arbors in place of J/T-guides or lattice tracks at much reduced cost under certain conditions. We do not recommend using wire guides with over 30ft (90.14m) of travel because the guides allow the arbors to move and twist too much. High tension in the guide wires keeps the arbors from swaying but greatly increases the loads placed in the building structure. If there are a number of guide wires present, the loads can become high enough to cause structural failure in the system. Lightly tensioned guides reduce building stress but allow the arbors to sway. This is OK if the arbors are far enough away from other arbors or obstructions to eliminate the possibility of collisions that can cause damage or falling counterweights. Delete if not required for project.
		BU.	Wire Guide - Arbor.
			1.	Arbor shall be of specified length, or long enough to accommodate counterweights to balance its pipe batten and related equipment, whichever is longer.
			2.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
			3.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the inner arbor rod nuts, and a forged steel eye for the hand line tie off.
			4.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.05 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
			5.	The top and bottom shall have smoothed and rounded 3/8 inch (9.52 mm) holes for 1/4 inch (6.4 mm) diameter guide wires located on 15 inch (381 mm) centers.
			6.	Provide 12-gauge (2.78 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2ft (609.6 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. The front retaining collar shall be welded to the top spreader plate.
			7.	The arbor shall be guided by 1/4 inch (6.35 mm) diameter wire ropes when installed. The guides shall be tensioned with turnbuckles tightened to prevent excessive play in the arbor travel but not so tight as to over stress the attachment points of the cables.
		BV.	Wire Guide - Locking Rail.
			1.	Rope locks and index cards shall be mounted on a formed steel angle no smaller than 3-1/2 inch x 5 inch x 1/4 inch (88.9 mm x 127 mm x 6.4 mm).
			2.	The onstage edge of the rail shall be sloped and punched to receive formed clips which hold plastic write-on index cards centered on the installed sets. Provide one numbered plastic write-on card for each installed set.
			3.	Stanchions made from 1/2 inch x 3 inch (12.7 mm x 76.2 mm) flat bar and 3 inch (76.2 mm) channel shall be provided on 5 feet (1.52m) (maximum) centers. A 4 inch (101.6 mm) Channel shall be mounted along the stanchions to provide a lower bumper for wire guided counterweight arbors.
			4.	Two angles on the stanchions shall be provided to support 855M floor blocks.
			5.	The entire locking rail shall be designed and installed to withstand a minimum up load of 500 pounds per foot (226.8 KG per 304.8 mm) per AISC standards.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete floor blocks not required for project.
		BW.	Floor Block: Nylon Wire Guide Floor Block.
			1.	The sheave shall have an 8 inch (203.2 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two sealed, precision ball bearings.
			2.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
			3.	Side plates shall be a minimum of 12-gauge steel (2.78 mm), and shall fully enclose the sheave.
			4.	Base angles shall incorporate tie off points for guide wires.
		BX.	Floor Block: Wire Guide Floor Block.
			1.	The sheave shall have an 8 inch (203.2 mm) outside diameter and shall be an iron casting with a machined groove for a 3/4 inch (19.05 mm) rope. The sheave shall be equipped with a 17 mm diameter shaft and two sealed, precision ball bearings.
			2.	Base angles shall be a minimum 1.5 inch x 1.5 inch x 3/16 inch (38.1 mm x 38.1 mm x 4.76 mm) angle.
			3.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave.
			4.	Base angles shall incorporate tie off points for guide wires.
		BY.	Floor Block: Nylon Fixed Combination Floor Block.
			1.	The sheave shall have an 8 inch (203.2 mm) outside diameter and shall be filled nylon. The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two sealed, precision ball bearings.
			2.	Side plates shall be a minimum of 12-gauge (2.78 mm) steel, and shall fully enclose the sheave.
			3.	The included rope lock shall consist of an ASTM A536 ductile iron housing, cams and handle. The cams shall compress the rope, not bend it over a tight radius corners that reduce its strength. The housing shall allow the use of a standard padlock to hold the handle in its closed position. There shall be a rubber bumper in the housing to silence the handle when it is opened.
			4.	Adjustment for rope shall be from 5/8 inch to 1 inch (15.87 mm to 25.4 mm) by means of a 1/2 inch (12.7 mm) nylon tipped, socket head adjustment screw with lock nut at the rear of the housing.
			5.	The handle shall be 9 inch (228.6 mm) long with a nylon powder or vinyl dip coating. The handle shall be installed so that it passes two degrees past vertical to lock the hand line. A coated, oval, welded steel ring shall be provided as a safety lock. The outer end of the handle shall be slotted to accommodate a safety padlock.
			6.	The rope lock and floor block shall be mounted to a 1/2 inch x 4 inch (12.7 mm x 101.6 mm) formed steel frame, which incorporates tie off points for guide wires.
		BZ.	Floor Block: Fixed Combination Floor Block.
			1.	The sheave shall have an 8 inch (203.2 mm) outside diameter and shall be an iron casting with a machined groove for a 3/4 inch (19.1 mm) rope. The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two sealed, precision ball bearings.
			2.	Side plates shall be a minimum of 12-gauge steel (2.78 mm), and shall fully enclose the sheave.
			3.	The rope lock shall consist of an ASTM A536 ductile iron housing, cams and handle. The cams shall compress the rope, not bend it over tight radius corners that reduce its strength. The housing shall allow the use of a standard padlock to hold the handle in its closed position. There shall be a rubber bumper in the housing to silence the handle when it is opened.
			4.	Adjustment for rope shall be from 5/8 inch to 1 inch (15.87 mm to 25.4 mm) by means of a 1/2 inch (12.7 mm) nylon tipped, socket head adjustment screw with lock nut at the rear of the housing.
			5.	The handle shall be 9 inch (228.6 mm) long with a nylon powder or vinyl dip coating. The handle shall be installed so that it passes two degrees past vertical to lock the hand line. A coated, oval, welded steel ring shall be provided as a safety lock. The outer end of the handle shall be slotted to accommodate a safety padlock.
			6.	The rope lock and floor block shall be mounted to a 1/2 inch x 4 inch (12.7 mm x 101.6 mm) formed steel frame, which incorporates tie off points for guide wires.
		CA.	Floor Block: Adjustable Combination Floor Block.
			1.	The sheave shall have a 10 inch (254 mm) outside diameter and shall be an iron casting with a machined groove for a 3/4 inch (19.1 mm) rope. The sheave shall be equipped with a 17 mm (0.67inch) diameter shaft and two sealed, precision ball bearings. The shaft shall be fitted with a locking handle, allowing the sheave to be moved to adjust rope tension.
			2.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, shall fully enclose the sheave, and shall have a slot allowing a minimum of 5 inch (1.52m) of sheave position adjustment.
			3.	The rope lock shall consist of an ASTM A536 ductile iron housing, cams and handle. The cams shall compress the rope, not bend it over tight radius corners that reduce its strength. The housing shall allow the use of a standard padlock to hold the handle in its closed position. There shall be a rubber bumper in the housing to silence the handle when it is opened.
			4.	Adjustment for rope shall be from 5/8 inch to 1 inch (15.87 mm to 25.4 mm) by means of a 1/2 inch (12.7 mm) nylon tipped, socket head adjustment screw with lock nut at the rear of the housing.
			5.	The handle shall be 9 inch (228.6 mm) long with a nylon powder or vinyl dip coating. The handle shall be installed so that it passes two degrees past vertical to lock the hand line. A coated, oval, welded steel ring shall be provided as a safety lock. The outer end of the handle shall be slotted to accommodate a safety padlock.
			6.	The rope lock and floor block shall be mounted to a 1/2 inch x 4 inch (12.7 mm x 101.6 mm) formed steel frame, which incorporates tie off points for guide wires.
		CB.	Floor Block: Adjustable Combination Floor Block.
			1.	The sheave shall have a 12 inch (304.8 mm) outside diameter and shall be an iron casting with a machined groove for a 3/4 inch (19.1 mm) rope. The sheave shall be equipped with a 17 mm (0.67 inch) diameter shaft and two sealed, precision ball bearings. The shaft shall be fitted with a locking handle, allowing the sheaved to be moved a minimum of 5 inch (1.52m) to adjust rope tension.
			2.	Side plates shall be a minimum of 10-gauge (3.57 mm) steel, shall fully enclose the sheave, and shall have a slot allowing a minimum of 8 inch (203.2 mm) of sheave position adjustment.
			3.	The rope lock shall consist of an ASTM A536 ductile iron housing, cams and handle. The cams shall compress the rope, not bend it over tight radius corners that reduce its strength. The housing shall allow the use of a standard padlock to hold the handle in is closed position. There shall be a rubber bumper in the housing to silence the handle when it is opened.
			4.	Adjustment for rope shall be from 5/8 inch to 1 inch (15.87 mm to 25.4 mm) by means of a 1/2 inch (12.7 mm) nylon tipped, socket head adjustment screw with lock nut at the rear of the housing.
			5.	The handle shall be 9 inch (228.6 mm) long with a nylon powder or vinyl dip coating. The handle shall be installed so that it passes two degrees past vertical to lock the hand line. A coated, oval, welded steel ring shall be provided as a safety lock. The outer end of the handle shall be slotted to accommodate a safety padlock.
			6.	The rope lock and floor block shall be mounted to a 1/2 inch x 4 inch (12.7 mm x 101.6 mm) formed steel frame, which incorporates tie off points for guide wires.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete if not required for project.
		CC.	Lattice Track Arbor.
			1.	Arbor shall be of specified length, or long enough to accommodate counterweights to balance its pipe batten and related equipment, whichever is longer.
			2.	The arbor top shall be a fabricated weldment of 1/2 inch (12.7 mm) formed steel plate and 7 gauge (4.76 mm) formed side plates. The side plates shall be punched to receive 8 cables, and shall be tied together with a bolt and spacer providing a tie-off point for the hand line.
			3.	The arbor bottom shall be 1/2 inch x 3 inch (12.7 mm x 76.2 mm) steel bar with counterweight rests to keep the weights from resting on the inner arbor rod nuts, and a forged steel eye for the hand line tie off.
			4.	The top and bottom of the arbor shall be tied together by means of two 3/4 inch (19.05 mm) steel arbor rods. The arbor rods shall have three nuts at each end, the outermost being a lock nut.
			5.	The top and bottom shall have UHMW or bronze guides to engage the lattice track.
			6.	Provide 12-gauge (2.78 mm) spreader plates (two minimum) on arbor rods so they can be spaced between counterweights on 2 feet-0 inch (610 mm) centers. Provide a retaining collar on each rod, each with a 1/4 inch (6.4 mm) set screw with red plastic knob for easy locking. One retaining collar shall be welded to the top spreader plate.
	** NOTE TO SPECIFIER ** Available for J-Guide, A-Guide and T-Bar types. Delete bottom bracket if not required for project.
		CD.	Bottom Bracket: Lattice Track and Bracket.
			1.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.35 mm) angles opposing each other with 1/4 inch x 2 inch (6.35 mm x 50.8 mm) formed brackets alternating front and back on 2 feet-0 inch (50.8 mm) centers. Back brackets shall contain two, 9/16 inch (14.3 mm) diameter holes for anchorage to wall.
				b.	All connections shall be made with 3/8 inch (9.52 mm) hex bolts and lock nuts.
			2.	Lattice Track Bracket:
				a.	A fabricated steel bracket shall support the bottom of the lattice track. Bracket shall have ample clearance for passage of hand line.
		CE.	Bottom Bracket: Lattice Track and Spring Bracket.
			1.	Lattice Track:
				a.	The track shall consist of two 2 inch x 2 inch x 1/4 inch (50.8 mm x 50.8 mm x 6.4 mm) angles opposing each other with 1/4 inch x 2 inch (6.35 mm x 50.8 mm) formed brackets alternating front and back on 2 inch (50.8 mm) centers. Back brackets shall contain two, 9/16 inch (14.3 mm) diameter holes for anchorage to wall.
				b.	All connections shall be made with 3/8 inch (9.52 mm) hex bolts and lock nuts.
			2.	Lattice Track Spring Bracket:
				a.	A fabricated steel bracket with integral compression springs shall support the bottom of the lattice track, prevent abrupt stops, and limit arbor travel. The springs shall be braced and guarded for safety. Bracket shall have ample clearance for passage of hand line.
	** NOTE TO SPECIFIER ** Delete floor clock not required for project.
		CF.	Floor Block: Sliding Tension Block.
			1.	12 inch (304.8 mm) Sliding Tension Block:
			2.	The cast iron sheave shall have a 12 inch (304.8 mm) outside diameter, and shall be an iron casting, with a machined groove for a 3/4 inch (19.05 mm) rope.
			3.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two tapered roller bearings.
			4.	The tension block shall be held in place and guided by two 3/4 inch (19.05 mm) diameter rods.
		CG.	Floor Block: Sliding Tension Block.
			1.	16 inch (406.4 mm) Tension Block:
			2.	The cast iron sheave shall have a 16 inch (406.4 mm) outside diameter and shall be an iron casting with a machined groove for a 1 inch (25.4 mm) rope.
			3.	The sheave shall be equipped with a 1 inch (25.4 mm) diameter shaft and two, tapered roller bearings.
			4.	The tension block shall be held in place and guided by two 3/4 inch (19.1 mm) diameter rods, each equipped with adjustable locking collar to limit sheave travel.
			5.	The sliding tension block shall be J.R. Clancy No. 6CR-1618.
	** NOTE TO SPECIFIER ** Delete index light(s) not required for project.
		CH.	Single Circuit: Index Light.
			1.	Each index light unit shall consist of a sheet steel housing containing lamp sockets mounted 24 inch (609.6 mm) apart and wired on a single circuit with leads and junction box at either end. Sockets shall be suitable for 60 Watt, type 'A' lamps.
			2.	Units shall be constructed so as to light the locking rail and prevent light from spilling on stage. The exterior of the index strip light shall be painted a matte black; the interior shall be white. Units shall be supplied in five and ten foot sections.
			3.	Index strip lights shall be UL Listed.
		CI.	Dual Circuit: Index Light - 2 Circuits.
			1.	Each index light unit shall consist of a sheet steel housing containing lamp sockets mounted 12 inch (304.8 mm) apart and wired alternately on two circuits with leads and junction box at either end. Sockets shall be suitable for 60 Watt, type 'A' lamps.
			2.	Units shall be constructed so as to light the locking rail and prevent light from spilling on stage. The exterior of the index strip light shall be painted a matte black; the interior shall be white. Units shall be supplied in five and ten foot sections.
			3.	Index strip lights shall be UL Listed.
	** NOTE TO SPECIFIER ** Delete rope lock not required for project.
		CJ.	Rope Lock.
			1.	The rope lock shall consist of an ASTM A536 ductile iron housing, cams and handle. The cams shall compress the rope, not bend it over tight radius corners that reduce its strength. The housing shall allow the use of a standard padlock to hold the handle in its closed position.
			2.	In order to reduce noise during operation, there shall be a rubber bumper in the housing to silence the handle when it is opened. The dogs that grip the rope shall be machined to fit closely to reduce noise and not use washers.
			3.	Adjustment for rope shall be from 5/8 inch to 1 inch (15.9 mm to 25.4 mm) by means of a 0.5 inch (12.7 mm) nylon tipped, socket head adjustment screw with lock nut at the rear of the housing.
			4.	The handle shall be 9 inch (228.6 mm) long with a nylon powder or vinyl dip coating. The handle shall be installed so that it passes two degrees past vertical to lock the hand line.
			5.	A coated, oval, welded steel ring shall be provided as a safety lock.
			6.	The rope lock shall mount to the locking rail with four 3/8 inch (9.5 mm) hex bolts and lock nuts.
		CK.	SureLock Rope Lock.
			1.	In order to reduce the possibility of accidents caused by out of balance sets, the rope lock shall not open if there is an out of balance condition exceeding 50 lbs. (23 KG) in either direction. A visual indicator shall be provided on the front of the unit showing if the set is balanced, batten heavy, or arbor heavy.
			2.	The rope lock shall consist of an ASTM A536 ductile iron housing, cams and handle. There shall be rubber bumpers in the housing to silence the handle when it is opened. The body of the rope lock shall accommodate a padlock, securing the handle in the closed position.
			3.	Adjustment for rope shall be from 5/8 inch to 1 inch (15.87 mm to 25.4 mm) by means of a 0.5 inch (12.7 mm) nylon tipped, socket head adjustment screw with lock nut at the rear of the housing.
			4.	The handle shall be 9 inch (228.6 mm) long with a nylon powder, or vinyl dip, coating. The handle shall be installed so that it passes two degrees past vertical to lock the hand line. The cam at the lower end of the handle shall be equipped with a steel roller to eliminate sliding friction and promote ease of use.
			5.	A coated, oval, welded steel ring shall be provided as a safety lock.
			6.	The rope lock shall mount to the locking rail with four 3/8 inch (9.52 mm) hex bolts and lock nuts.
	** NOTE TO SPECIFIER ** Delete batten not required for project.
		CL.	Pipe Batten.
			1.	All battens shall be 1.5 inch (38.1 mm) nominal diameter, schedule 40 pipe in lengths as shown on the drawings or Bill of Materials. All joints shall be spliced with 18 inch (457.2 mm) long sleeves with 9 inch (228.6 mm) extending into each pipe and held by two 3/8 inch (9.52 mm) hex bolts and lock nuts on each side of the joint.
			2.	Each end shall be covered with a bright yellow, closed end, soft vinyl safety cap at least 4 inch (101.6 mm) in length.
		CM.	Truss Battens.
			1.	Two pipe truss battens shall be in lengths as shown on the drawings or Bill of Materials. Truss battens shall be formed from two 1-1/2 inch (38.1 mm) nominal diameter, schedule 40 pipes, spaced 12 inch (304.8 mm) apart by 1/4 inch by 2 inch (6.4 mm x 50.8 mm) flat bars located a maximum of 5 ft (1.52m) apart and welded between the pipes. All joints shall be spliced with 18 inch (457.2 mm) long sleeves with 9 inch (228.6 mm) extending into each pipe and held by two 3/8 inch (9.52 mm) hex bolts and lock nuts on each side of the joint.
			2.	Each end shall be covered with a bright yellow, closed end, soft vinyl safety cap at least 4 inch (101.6 mm) in length.
	** NOTE TO SPECIFIER ** Delete termination not required for project.
		CN.	Turnbuckles and Pipe Clamp.
			1.	Turnbuckles: Turnbuckles.
				a.	Turnbuckles shall be drop forged and galvanized, and conform to ASTM F-1145 Type 1, Grade 1 standard. Turnbuckles shall be moused after adjustment to prevent loosening.
			2.	Pipe Clamps: Pipe Clamps.
				a.	Full Pipe Clamps:
				b.	Pipe clamps shall be made of two strips of 12 Ga. (2.780 mm) by 2 inch (50.8 mm) hot rolled steel formed to encompass and clamp the pipe batten to prevent its rotation. Corners shall be rounded.
				c.	There shall be a 3/8 inch x 1 inch (9.525 mm x 25.4 mm) hex bolt with lock nut above and below the batten. A 5/8 inch (15.875 mm) hole in the top of each clamp half allows the attachment of cable, chain, or other fittings.
				d.	Full pipe clamps shall have a manufacturer's recommended load rating of at least 750 lbs (340.2 KG).
		CO.	Trim Chains: Trim Chains.
			1.	Trim chains shall be 36 inch (914.4 mm) long, made of 1/4 inch (6.4 mm) plated, grade 30 Proof Coil chain. Connection between the end link and the lifting cable shall be made with a thimble and copper Nicopress sleeve. Chains shall be wrapped one and one half turns around the batten and attached back to the thimble at the end of the lift line with a 1/4 inch (6.4 mm) forged shackle. Adjustment is made by connecting the shackle into a link along the return side of the chain.
			2.	Trim chains shall have a recommended working load of at least 750 lbs (340 KG).
		CP.	Trim Chains: Alloy Trim Chains.
			1.	Trim chains shall be 36 inch (914 mm) long, made of 7 mm, Grade 63, hardened alloy chain meeting OSHA 1910.184(e)(5). The chain shall have a RWL of 3,250 lbs(1,474 KG), shall be manufactured in the United States and have a black finish to eliminate glare. Each link is marked with the manufacturer's code and every 10th link has date code for traceability.
			2.	Connection between the end link and the lifting cable shall be made with a thimble and copper Nicopress sleeve.
			3.	Chains shall be wrapped one and one half turns around the batten and attached back to the thimble at the end of the lift line with a 1/4 inch to 3/8 inch (6.4 mm to 9.5 mm) forged shackle. Adjustment is made by connecting the forged shackle into a link along the return side of the chain.
			4.	Trim chains shall have a recommended working load of at least 750lbs (340.2 KG). when attached to 1/4 inch(6.4 mm), 7x19 GUC.
		CQ.	Batten Trim Plate:
			1.	Screw Pin Shackles: Shackles are u-shaped fittings with holes at each end to accommodate a pin to connect a rope, cable, or chain to another device. The pin has a head at one end and a thread at the other that screws into the body of the shackle. Shackle shall be from a U.S. manufacturer, and shall be moused after final trim adjustment.
			2.	Trim Plate Assembly: Trim plate assembly consists of a batten clamp and plate punched with holes to receive 3/8 inch (9.52 mm) hardware, and 1/4 inch (6.35 mm) screw pin shackles.
				a.	The plate shall be punched with five trim holes and one pick point hole to receive 3/8 inch (9.52 mm) hardware.
				b.	The trim holes shall be positioned to allow for 1/2 inch (12.7 mm) variations in trim height.
				c.	Trim plate assembly shall be able to support up to 500 lbs. (226.8 KG) per pick point.
				d.	Trim plate assembly shall have the ability to be adjusted without the use of tools.
		CR.	Batten Trim Clamp:
			1.	Batten trim clamps shall consist of two pipe clamps, each made of two strips of 12-gauge (2.78 mm) by 2" (50.8 mm) hot rolled steel formed to encompass and clamp the pipe batten to prevent its rotation. Corners shall be rounded. There shall be a 3/8" x 1" (9.52 mm x 25.4 mm) hex bolt with lock nut above and below the batten. A 5/8" hole (15.87 mm) in the top of one clamp half allows the attachment of cable, chain, or other fittings. The other clamp shall be fitted with a Nylon or aluminum grooved spacer with a minimum 2" (50.8 mm) diameter.
			2.	Line adjustment shall be made by loosening the end clamp and sliding it along the batten or by adjusting the turnbuckle if so equipped.
			3.	Trim clamps shall have a recommended working load of at least 700 lbs. (317.5 KG).
		CS.	Lift Cables:
			1.	All lift cables shall be 7 x 19 construction, galvanized utility cable, sized as required, and with breaking strengths as follows:
				a.	1/8 inch (3.17 mm) diameter - 2,000 lbs. (907 KG).
				b.	3/16 inch (4.77 mm) diameter - 4,200 lbs. (1,905 KG).
				c.	1/4 inch (6.35 mm) diameter - 7,000 lbs. (3,175 KG).
				d.	5/16 inch (7.94 mm) diameter - 9,800 lbs. (4445 KG).
				e.	3/8 inch (9.52 mm) diameter - 14,400 lbs. (6,532 KG).
			2.	Damaged or deformed cable shall not be used. All wire rope rigging shall be installed so as to prevent abrasion of the wire rope against any part of the building construction or other equipment.
		CT.	Cable Fittings:
			1.	Cable clips shall conform to wire rope manufacturer's recommendations as to size, number, and method of installation. Clips shall be drop forged, made in the United States per Federal Specification FF-C-450, Type 1, Class 1. Under no circumstances may malleable cable clips be used in suspension or lifting lines.
			2.	Swaged sleeve fittings shall be copper Nicopress. Aluminum sleeves are not permitted. Swaged fittings shall be installed per the fitting manufacturer's instructions, using the appropriate tools, and checked with the appropriate Nicopress "Go - No go" gauge.
			3.	Eyes shall be formed over galvanized steel, wire rope thimbles of correct size. It is grooved to support the rope or cable and prevent kinking and deformation.
			4.	Anchor shackles are u-shaped fittings with holes at each end to accommodate a pin used to connect a rope, cable, or chain to another device or hanging point. The pin has a head at one end and a cotter pin at the other end, a thread that screws into the body of the shackle, or a thread, nut and cotter pin at the other end.
	** NOTE TO SPECIFIER ** Delete counterweights not required, or select 'not required' option if they are not required.
		CU.	Counterweight:
			1.	Standard 4 Inch Counterweight:
				a.	Counterweights shall be 4 inches wide x 13 3/4 inches (349.25 mm) long, with U-shaped cutouts for the arbor rods. Counterweights shall be flame or laser cut steel. Each piece shall be free from slag and sharp edges. The thickness of counterweights shall not vary more than 3/16 inch (4.76 mm) from nominal dimension.
				b.	Opposite corners shall be notched for ease of handling. Alternate weights when stacking to provide finger holds when loading arbors.
				c.	Provide 25 percent of weight 2 inches (50.8 mm) thick and 75 percent of weight 1 inch (25.4 mm) thick for ease of balancing.
			2.	Standard 6 Inch Counterweight:
				a.	Counterweights shall be 6 inches wide x 13 3/4 inches (349.25 mm) long, with U-shaped cutouts for the arbor rods. Counterweights shall be flame or laser cut steel. Each piece shall be free from slag and sharp edges. The thickness of counterweights shall not vary more than 3/16 inch (4.76 mm) from nominal dimension.
				b.	Opposite corners shall be notched for ease of handling. Alternate weights when stacking to provide finger holds when loading arbors.
				c.	Provide 25 percent of weight 2 inches (50.8 mm) thick and 75 percent of weight 1 inch (25.4 mm) thick for ease of balancing.
			3.	FrontLoader 4 Inch Counterweight:
				a.	Counterweights shall be 4 inches wide x 13 3/4 inches (349.25 mm) long, with handle cutout for ease of loading. Counterweights shall be flame or laser cut steel. Each piece shall be free from slag and sharp edges. The thickness of counterweights shall not vary more than 3/16 inch (4.76 mm) from nominal dimension.
				b.	Provide 80 percent of weight 1.5 inches (38.1 mm) thick and 20 percent of weight 1 inch (25.4 mm) thick for ease of balancing.
			4.	FrontLoader 6 Inch Counterweight:
				a.	Counterweights shall be 6 inches wide x 13 3/4 inches (349.25 mm) long, with handle cutout for ease of loading. Counterweights shall be flame or laser cut steel. Each piece shall be free from slag and sharp edges. The thickness of counterweights shall not vary more than 3/16 inch (4.76 mm) from nominal dimension.
				b.	Provide 80 percent of weight 1.5 inches (38.1 mm) thick and 20 percent of weight 1 inch (25.4 mm) thick for ease of balancing.
			5.	Counterweight: Not required.
	** NOTE TO SPECIFIER ** Delete ropes not required for project.
		CV.	Hand Line - Suregrip.
			1.	Hand line shall be 3/4 inch (19.05 mm) in diameter, employing a 3-strand composite construction combining filament and staple/spun polyester wrapped around fibrillated polyolefin.
			2.	The hand line shall contain an identifying tape showing the manufacturer's name, phone number, website, and year of manufacture.
			3.	The hand line shall contain a red safety/wear indicator that becomes visible as the rope nears the end of its useful life.
			4.	The rope shall hold knots well, be easily spliced and be dense enough to allow it to be clamped in a rope lock without damage. Rope shall not be subject to rotting, mildew, resistance to UV, or moisture damage, nor shall its length be affected by changes in humidity.
			5.	Tape ends before cutting. Attach to arbor with two half hitches or bowline and tape end to standing line with electrical tape.
			6.	Hand lines shall be SureGrip rope.
		CW.	Hand Line - Multiline II.
			1.	Hand line shall employ a 3-strand composite construction combining filament and staple/spun polyester wrapped around fibrillated polyolefin.
			2.	The rope shall hold knots well, be easily spliced and be dense enough to allow it to be clamped in a rope lock without damage.
			3.	Rope shall not be subject to rotting, mildew, resistance to UV, or moisture damage, nor shall its length be affected by changes in humidity.
			4.	Tape ends before cutting. Attach to arbor with two half hitches or bowline and tape end to standing line with electrical tape.
			5.	Hand lines shall be Multiline II rope.
		CX.	Hand Line - Stage-Set-X.
			1.	Hand lines shall have a parallel filament core constructed of high-tenacity filament polyester. The core shall remain firm and round under all load conditions, and be dense enough to allow it to be clamped in a rope lock without damage. The core shall be wrapped in polyester tape to provide the core with protection against external damage and wear. The braided polyester outer jacket shall be constructed of spun polyester for good gripping.
			2.	The rope shall hold knots well, be easily spliced. Rope shall not be subject to rotting, mildew, resistance to UV, or moisture damage, nor shall its length be affected by changes in humidity.
			3.	Tape ends before cutting. Attach to arbor with two half hitches or bowline and tape end to standing line with electrical tape.
			4.	Hand lines shall be Stage-Set-X rope.
	** NOTE TO SPECIFIER ** Delete if not required for project.
		CY.	Mobile Capstan Hoist.
			1.	The capstan hoist shall have a capacity of 1500 lbs (680.4 KG) and an operating speed of approximately 35 fpm (0.17 mps). It shall consist of a structural steel, castered frame with a 4 inch (101.6 mm) tread diameter, cast iron capstan drum, directly coupled to the output of the gearbox.
			2.	The motor, primary brake, and gearbox shall be an integrated unit, with the first stage pinion gear mounted directly on the motor's armature shaft. No couplings will be permitted between the motor and gear reducer.
			3.	Motors shall be totally enclosed fan cooled (TEFC). The motor shall have a minimum NEMA service factor of 1.0 for constant operation.
			4.	The gear reducer shall be a combination Helical/Worm reducer. The gear case shall be cast iron for protection against shock damage. The output shaft(s) shall have double lip oil seals to prevent leaks. The gearing service factor shall be a minimum of 1.0 with a mechanical strength service factor of 1.25.
			5.	The primary brake shall be an integral part of the motor, mounted directly on the motor's armature shaft. Brakes shall be spring applied, direct acting, electrically released, and equipped with a manual release.
			6.	The mobile dolly base shall be equipped with stationary casters in front and swivel casters in the rear. A 3 inch x 3 inch x 3/8 inch (76.2 mm x 76.2 mm x 9.52 mm) angle in front shall engage the reaction bar in the locking rail. A forged cleat permits cable tieoff and a hook provides storage for power and control cables. A side opening gate block shall protrude into the locking rail.
			7.	The unit shall incorporate a full voltage reversing starter with overload, a footswitch to control motion, and an Up / Down direction selector. Unit will be equipped with 40 feet of type SO power cord with a locking electrical connector and mating receptacle.
			8.	Mobile capstan hoist with 150 ft (45.7m) of 3/4 inch (19.1 mm) SureGrip rope with a latching hook spliced in one end.
		CZ.	Capstan Reaction Bar:
			1.	Mobile Capstan Reaction Bar:
			2.	The capstan hoist shall engage a bar welded to the front of the locking rail stanchion the full width of the joint on the top and bottom.
			3.	The reaction bar shall be a 4 inch x 4 inch x 1/4 inch steel tube, in the vertical orientation, painted to match the locking rail.
		DA.	Production Lighting Distribution:
			1.	This assembly shall consist of an extruded aluminum wireway, 2-1/2 inch (63.5 mm) x 3-3/8 inch (85.7 mm) in cross section, and in lengths up to twenty feet. It shall contain a terminal strip for feed wire extending to outlets (flush mount or pigtail), as specified.
			2.	Connector strip housing shall be fabricated of black extruded aluminum wireway with interlocking cover sections to exceed UL 1573 standards. Housing shall be inherently rustproof.
			3.	Connector strip shall have an electrostatic paint finish in black, with outlets identified by 2 inch (50.8 mm) high die-cut circuit identification numbers on the vertical surface of the strip.
			4.	The strip shall contain 125 degrees Celsius XLP wiring of the proper sizes and quantities to connect the individual outlets to the terminal blocks in up to sixteen 20 Amp circuits.
			5.	The terminal blocks shall be molded barrier type with screw lugs suitable for connecting incoming wire. Terminal blocks can accept up to #10 gauge wire.
			6.	Connector strips shall be supplied with 1/8 inch (3.18 mm) thick by 1-1/2 inch (38.1 mm) steel C-channel mounting brackets. Brackets shall be 60 inch (1.524 m) on centers. U-bolts shall be supplied to grip up to 2 inch (50.8 mm) O.D. standard steel pipe.
			7.	The entire assembly shall be listed and labeled by Underwriters Laboratories.
			8.	Options available shall be color, LED indicator lights, low voltage raceway, custom circuit identification, and DMX input/output.
			9.	Refer to lighting drawings for circuit quantities and locations.
	** NOTE TO SPECIFIER ** Delete if not required for the project.
	2.29	HELIOS HOIST
		A.	The hoist shall be specifically designed for lifting loads in theatres and other places of public assembly. It shall have a compact design with all required components integrated into its structure. All components shall be designed to properly support the required loads.
			1.	Hoist shall be compliant with ANSI E1.6-1 - 2012 Entertainment Technology-Powered Hoist Systems.
			2.	Hoist shall accommodate 60’ of vertical batten travel.
			3.	Seven Lift Lines: 3/16 inch (4.76 mm) diameter, 7x19 galvanized utility cable.
			4.	Units shall be available for 208, 230, or 460 VAC 60 Hz (230, 380, 400, 415 VAC 50 Hz) power, without the need for transformers.
			5.	Structural backbone for mitigating horizontal loads and loft block mounting shall be available and optional.
			6.	Provide battens, fittings, and related equipment as shown on the drawings and as required for a functional system.
		B.	Models:
			1.	018-H0220:
				a.	Speed: 20 Feet Per Minute.
				b.	Total Capacity: 2000 Pounds.
			2.	018-H1212:
				a.	Speed: 120 Feet Per Minute.
				b.	Total Capacity: 1200 Pounds.
			3.	018-H1217:
				a.	Speed: 120 Feet Per Minute.
				b.	Total Capacity: 1750 Pounds.
			4.	018-H1812:
				a.	Speed: 180 Feet Per Minute.
				b.	Total Capacity: 1200 Pounds.
		C.	Gearmotor and Primary Brake:
			1.	The motor, primary brake, and gearbox shall be an integrated unit from a single manufacturer. For enhanced reliability, a continuous shaft shall link the brake, motor armature, and the first stage pinion gear without the use of couplings.
			2.	Motors shall be totally enclosed fan cooled (TEFC) per NEMA MG1. Motors shall have a minimum service factor of 1.0.
			3.	The gear reducer shall employ helical gearing. The gear case shall be cast iron, aluminum is not allowed, for protection against shock damage and to provide noise reduction. The output shaft shall have triple lip oil seals to prevent leaks.
			4.	The integral electro-magnetic brake shall be spring applied and electrically released, with a minimum retarding torque of 200 percent of motor full load torque. Brakes with a lower retarding torque shall not be permitted.
			5.	Fixed speed hoists shall incorporate a cast iron flywheel fan for soft starts and stops.
		D.	Secondary Brake:
			1.	For added security, a spring applied and electrically released load brake shall be located on the drum. The brake controller shall apply the brake if the speed exceeds the commanded speed, the maximum speed, or if it detects a failure in the integrity of the shafting and gearbox.
		E.	Drum:
			1.	Drum shall be designed to accommodate up to seven 3/16” lift lines.
			2.	Each lift line shall be contained on both sides with a steel side plate extending over the top diameter of the cable.
			3.	The maximum allowable fleet angle for the cables exiting the drum shall be one degree and the hoist design shall prevent fleet angles of greater than one degree.
		F.	Slack Line Detection:
			1.	Mechanism for detecting slack on any cable shall be provided. If slack is detected this system shall enter a fault state until the slack in the line is corrected.
		G.	Compression Tube:
			1.	The hoist shall incorporate a rectangle, tubular-shaped, aluminum extrusion capable of supporting the entire static load of the hoist assembly plus the live load.
			2.	The compression tube shall be attached to the structure at points no farther than 12 feet-0 inch (4.57 m) center to center.
			3.	The compression tube shall negate the hoist transferring horizontal forces into the structure.
			4.	Tube shall be providing mounting capabilities for loft blocks to be positioned anywhere along the tube.
		H.	Loft Blocks:
			1.	3/16" grooved blocks shall be designed to be placed anywhere along the compression tube or directly to the bottom of the building steel as shown in the drawings.
		I.	Rotary Limit Switches:
			1.	Rotary limit switch assemblies shall have four gear-driven, independently adjustable switch/cam sets. Switches shall have snap acting contacts.
			2.	Rotary limit switches shall be driven by roller chains. Sprockets shall be pinned to prevent slipping and sized for maximum usable rotation of switch cams. The input shaft and drive chain shall be fully guarded if a cover is needed per ANSI E1.6-1.
			3.	Switches shall be mounted to the winch base to allow for easy adjustment of the switch settings.
		J.	Motor Controllers:
			1.	For fire and electrical safety, motor controllers shall conform to the NEC (NFPA 70), be built in accordance with UL 508E, and be "touch safe" per IEC 60204-1 "Protection against direct contact" rules.
			2.	Controllers shall provide over current, overload, and phase loss protection.
			3.	Operation of the system key switch shall disconnect power to all starters and drives.
			4.	A maintenance pendant shall be provided for direct control of the hoists during setup and for maintenance. It shall contain Up and Down pushbuttons, an Overtravel Bypass switch, and a key operated On/Off switch.
		K.	Emergency Stop System:
			1.	The emergency stop system shall meet NFPA-79 (Electrical Standards for Industrial Machinery) and directly remove power by means of electromechanical components, using a UL508E Type 2, non-welding, positive break contactors.
			2.	The emergency stop circuit shall be a normally closed circuit or a supervised circuit that provides the same or greater level of reliability and security. Its operation shall not depend on software or semiconductors.
			3.	Resetting the emergency stop circuit shall not initiate motion.
			4.	For hoists running at more than 50 fpm, a Category 1 controlled stop per NFPA-79 (Electrical Standards for Industrial Machinery) shall be provided. This provides a rapid ramp to a stop, and then removes power to reduce shock loading.
		L.	Load Sensing:
			1.	Load information shall be obtained from solid state load cell on the hoist frame. The load sensing system shall be able to accommodate changing loads, such as the weight of power and/or data control cables which change with elevation, without false tripping.
		M.	Power and Control Wiring:
			1.	Integral power and control cables shall be provided with each PowerLift hoist. Cables shall be eight feet long, with one end directly connected to the hoist assembly.
			2.	Power cables shall be a properly rated SO cable, with a NEMA L series locking connector. Control cables shall have a connector with a steel body and a positive locking lever.
			3.	Power and control raceways or boxes (configured as determined by the hoist manufacturer) shall be provided, complete with connectors that mate with those provided on the cables.
	** NOTE TO SPECIFIER ** Delete if not required for the project.
	2.30	POWERLIFT HOIST
		A.	Models:
	**NOTE TO SPECIFIER** Delete models not required for project.
			1.	Model 018-P0225F:
				a.	Speed: 20 Feet Per Minute.
				b.	Total Capacity: 2,500 Pounds.
			2.	Model 018-P0225V:
				a.	Speed: 0-20 Feet Per Minute.
				b.	Total Capacity: 2,500 Pounds.
			3.	Model 018-P1212V:
				a.	Speed: 0-120 Feet Per Minute.
				b.	Total Capacity: 1,250 Pounds.
			4.	Model 018-P1217V:
				a.	Speed: 0-120 Feet Per Minute.
				b.	Total Capacity: 1,750 Pounds.
			5.	Model 018-P1225V:
				a.	Speed: 0-120 Feet Per Minute.
				b.	Total Capacity: 2,500 Pounds.
			6.	Model 018-P1812V:
				a.	Speed: 0-180 Feet Per Minute.
				b.	Total Capacity: 1,200 Pounds.
			7.	Model 018-P1817V:
				a.	Speed: 0-180 Feet Per Minute.
				b.	Total Capacity: 1,750 Pounds.
		B.	Drum:
			1.	The hoist shall use a moving single layer drum to minimize hoist size and wire rope wear. The drum shall move along its axis as it rotates, keeping the cable takeoff points on the drum aligned with the head block sheaves incorporated in the hoist (zero fleet angle design). This shall be accomplished by the drum sliding on its axle and the motor shall remain stationary.
			2.	The drum shall be helically grooved to accept a single layer of cable accommodating the entire travel distance plus three dead wraps per cable. Drums that utilize multiple layers of cable shall not be allowed.
			3.	The hoist drum diameter shall not change along its long axis.
			4.	Cables shall be retained by a copper swage stop sleeve inside the drum. The cable retention system shall allow replacement of lift lines in situ. Cables shall be factory installed on the drum and color coded for ease of field installation.
			5.	Preloaded chase rollers shall be provided to retain lift lines in their grooves.
			6.	The pitch diameter of all drums shall meet or exceed the wire rope manufacturer s minimum recommended D/d ratio. Load bearing wire rope groove profiles shall meet the recommendations of the "Wire Rope Technical Board".
			7.	The drum shall be positively driven to move along its axle to maintain a zero-fleet angle with the grooves in the drum and the head block sheaves. The drum and axle shall be permanently lubricated.
		C.	Gearmotor and Brakes:
			1.	The motor, brakes, and gearbox shall be an integrated unit from a single manufacturer. For enhanced reliability, a continuous shaft shall link the brake, motor armature, and the first stage pinion gear without the use of couplings. Design of transmission components between the load and the brakes shall comply with ANSI E1.6-1 and EN 17206.
			2.	Motors shall be totally enclosed fan cooled (TEFC) per NEMA MG1.
			3.	The gear reducer shall employ helical gearing. The gear case shall be cast iron, aluminum is not allowed, for protection against shock damage and to provide noise reduction. The output shaft shall have triple lip oil seals to prevent leaks.
			4.	The integral electro-magnetic brakes shall be spring applied and electrically released.
			5.	Fixed speed hoists shall incorporate a cast iron flywheel fan for soft starts and stops.
			6.	The brake controller shall apply the brake if the speed exceeds the commanded speed, the maximum speed.
		D.	Headblock, Blocks and Sheaves:
			1.	Hoist shall be constructed so that at least one wire rope life line can exit the machine at the rear of the hoist and the hoist can be located above the batten.
			2.	Sheaves:
				a.	All load bearing sheaves, both internal and external, shall have a minimum 26:1 D:d ratio to meet the wire rope manufacturer's recommendations. Sheave grooves shall be deeper than the cable diameter for cable protection. The sheave shall be equipped with a minimum 12 mm diameter machined steel shaft and two sealed, precision ball bearings. Spacers shall positively retain the cable.
			3.	Head Block:
				a.	Head block sheaves shall be mounted between 12-gauge steel (2.78 mm) minimum side plates that fully enclose the sheaves.
			4.	Loft Blocks:
				a.	The block and associated mounting hardware shall have a recommended working load of at least 500 lbs. (226.6 KG).
				b.	External loft blocks shall be provided with idlers to support ongoing lift lines with an individual groove for each lift line to prevent tangling. The use of un-grooved idler drums is known to cause tangling and jams and is not allowed.
		E.	Wire Rope and Cable Fittings:
			1.	Wire Rope Lift Cables:
				a.	All lift cables shall be 3/16 inch (4.77 mm) diameter 7 x 19 construction, galvanized utility cable, with a breaking strengths of 4,200 lbs. (1,905 KG).
				b.	Damaged or deformed cable shall not be used. All wire rope rigging shall be installed so as to prevent abrasion of the wire rope against any part of the building construction or other equipment.
			2.	Cable Fittings:
				a.	Swaged sleeve fittings shall be copper Nicopress. Aluminum sleeves are not permitted. Swaged fittings shall be installed per the fitting manufacturer's instructions, using the appropriate tools, and checked with the appropriate Nicopress "Go - No go" gauge. Swage tool used and number of crimps required shall be recorded and provided to the user with user’s manual.
				b.	Eyes shall be formed over galvanized steel, wire rope thimbles of correct size. It is grooved to support the rope or cable and prevent kinking and deformation.
			3.	Inspection of Wire Rope:
				a.	Wire rope terminations within hoist must be able to be inspected for excessive wear and damage per ANSI E1.47. Hoists that prevent the visual inspection of terminations shall not be permitted.
		F.	Limit Switches:
			1.	Hoists shall have positively actuated limit switches for normal end of travel indication. These switches shall open the control circuit in the drive or starter to stop any further movement in the direction of travel.
			2.	Positively actuated limit switches shall be provided for over travel indication. These shall use a separate circuit that is redundant to the normal end of travel switches, and positively disconnects power from the hoist.
			3.	An override mechanism to allow resetting of the overtravel limits shall be included.
			4.	Limit switches shall be adjustable from the motor end of the hoist and set to match actual site conditions.
			5.	Computer controlled systems shall also have software limits utilizing solid state encoders, in addition to the two levels of mechanically actuated limit switches.
		G.	Emergency Stop:
			1.	The emergency stop system shall meet NFPA-79 (Electrical Standards for Industrial Machinery) and directly remove power either by means of electromechanical components, using a UL 508E Type 2, non-welding, positive break contactors or through the utilization of functional safety elements within the feature set of the VFD.
			2.	The emergency stop circuit shall be a normally closed circuit or a supervised circuit that provides the same or greater level of reliability and security. Its operation shall not depend on software or semiconductors.
			3.	Resetting the emergency stop circuit shall not initiate motion.
			4.	For hoists running at more than 25 fpm, a Category 1 control