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	SECTION 15831
	AIR CURTAINS
	** NOTE TO SPECIFIER ** Mars Air Systems, LLC; for Mars Standard Series air curtains for environmental control, insect control and temperature control. . This section is based on products manufactured by Mars Air Systems, LLC, which is located at: 14716 South Broadway St. Gardena, CA 90248 Tel: (310) 532-1555 Tel: (800) 421-1266 Fax: (310) 324-3030 Email: info@marsair.com Web: www.marsair.com [click Here] for additional information. Mars Air Systems, LLC. manufactures energy savings air curtains that make buildings more functional for work, dining, shopping and play. From manufacturing facilities, warehouses and convention centers to buy-in-bulk retail stores, restaurants and sports complexes, Mars Air Curtains can be installed over any operational door or pass-thru window. Mars Air Curtains will protect a building's inside environment from windborne dust, dirt, fumes, flying insects and extreme outside temperature conditions. Mars offers a complete line of air curtains available with a variety of heat options, color and mounting options, and a multitude of accessories to customize your air curtain for any application setting. Heating options include electric, steam, or hot water coils and gas fired duct furnaces. Not only will Mars Air Curtains improve the inside sanitation levels of your facility, but it will also reduce the operational energy costs necessary to heat and cool it. Typical installations include retail entrances, pedestrian and vehicular openings, and large loading dock doors. Air curtains help reduce heating and cooling costs while expediting the flow of traffic from one work area to another or in and out of a building. At the same time, air curtains repel gusts of wind and minimize the entrance of windborne dust, fumes, pollutants, and flying insects. Mars Air Curtain products meet the requirements of all North American and European Union Codes and Standards. For a complete selection guide and assistance with your air curtain configuration please visit www.marsair.com . For additional information and assistance call Mars Air Systems at 800-421-1266 or 310-532-1555.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Air curtains for pedestrian entrances.
		B.	Air curtains for vehicular entrances.
		C.	Air curtains for large loading dock doors.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 05500 - Metal Fabrications: Concealed steel support members.
		B.	Section 06100 - Rough Carpentry.
		C.	Section 05410 - Load-Bearing Metal Studs.
		D.	Section 07900 - Joint Sealers.
		E.	Section 08110 - Steel Doors and Frames.
		F.	Section 08330 - Overhead Coiling Doors.
		G.	Section 15145 - Plumbing Piping: Gas piping to units.
		H.	Section 15182 - Hydronic Piping: Hot water heating piping to units.
		I.	Section 15184 - Steam and Condensate Piping: Steam heating piping to units.
		J.	Section 16150 - Equipment Wiring: Connections to building power distribution.
	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.	ASTM A240 / A240M -10 – Standard Specification for Chromium and Chromium- Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications.
		B.	ASTM A591 / A591M -98 - Standard Specification for Steel Sheet, Electrolytic Zinc-Coated, for Light Coating Weight (Mass) Application (Withdrawn in 2005, replaced by A879/A879M).
		C.	ASTM A879 / A879M -06 - Standard Specification for Steel Sheet, Zinc Coated by the Electrolytic Process for Application Requiring Designation of the Coating Mass on Each Surface.
		D.	ASTM A653 / A653M -09a - Standard Specification for Steel Sheet, Zinc Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
		E.	UL 507 - Standard for Safety Electric Fans - UL Listed for US and Canada.
		F.	UL 507 - UL Standard for Safety Electric Fans - Intertek Testing Services Listed for US and Canada.
		G.	UL 2021 - UL Standard for Fixed and Location-Dedicated Electric Room Heaters - Listed for US and Canada.
		H.	UL 2021 - Standard for Fixed and Location-Dedicated Electric Room Heaters - Intertek Testing Services Listed for US and Canada.
		I.	CSA 3812-01 - Fans and Blowers Certified to US Standards - Canadian Standard Association - Certified for Canada.
		J.	CSA 3212-81 - Fans and Blowers - Canadian Standard Association - Certified for US.
		K.	ARI 410-2001 - Standard for Forced-Circulation Air-cooling and Air-Heating Coils.
		L.	CRN - Canadian Registration Number Coil.
		M.	ANSI Z223-NFPA 54 - National Fuel Gas Code.
		N.	NSF 37 - Air Curtains for entranceways in food and food service establishments - National Sanitation Foundation.
		O.	NSF 37 - Air Curtains for entranceways in food and food service establishments - ETL Sanitation.
		P.	CE - Certified a product has met EU consumer safety, health or environmental requirements - Intertek Testing Services Listed.
		Q.	NEC - National Electric Code.
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Preparation instructions and recommendations.
			2.	Storage and handling requirements and recommendations.
			3.	Installation methods.
		C.	Shop Drawings: Include plans, elevations, sections, and details, indicating dimensions, tolerances, materials, fasteners, hardware, finish, piping, electrical wiring diagrams, options, and accessories.
	** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
		D.	Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
		E.	Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.
		F.	Manufacturer's Certificates: Certify products meet or exceed specified requirements.
		G.	Operation and Maintenance Manual: Submit manufacturer's operation and maintenance manual, including operation, maintenance, adjustment, and cleaning instructions, trouble shooting guide, parts list, and electrical wiring diagrams.
	1.5	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: Minimum ten years documented experience producing the products specified in this Section.
		B.	Installer Qualifications: Minimum five years documented experience installing products specified in this Section.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Store in a dry, heated storage area until installation of products.
		C.	Protect materials and finish from damage during handling and installation.
	1.7	SEQUENCING
		A.	Ensure that locating templates and other information required for installation of products of this section are furnished to affected trades in time to prevent interruption of construction progress.
		B.	Coordinate the installation of wiring and control switches for air curtains with the openings and the hardware provided for such openings.
		C.	Install after doors, walls, ceilings and other adjacent surfaces are finished and painted.
	1.8	WARRANTY
	** NOTE TO SPECIFIER ** Select the applicable warranty from the following paragraphs as required for the unit(s) specified and delete the one not required.
		A.	Standard five year limited parts warranty for unheated units against defects in workmanship and material.
		B.	Standard eighteen-month limited parts warranty for heated units against defects in workmanship and materials.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Mars Air Systems, LLC, which is located at: 14716 S. Broadway ; Gardena, CA 90248; Toll Free Tel: 800-421-1266; Tel: 310-532-1555; Email: request info; Web: www.marsair.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 will be considered in accordance with provisions of Section 01600.
	** NOTE TO SPECIFIER ** Standard Series air curtains are available in two types: Environmental and Flying Insect (NSF Certified) Control. They are available for openings 36 inches to 144 inches wide and heights up to 10 feet for environmental separation and temperature control applications and heights up to 8 feet for flying insect control applications (NSF Certified). Standard Series air curtains for temperature control applications are typically effective to resist wind loads up to 12 mph. Note that velocities specified for each unit are based on a 60 Hz power source. Select the type and sizes required and delete those not required. Indicate the door/opening height for each air curtain on the Drawings or on the Schedule at the end of this Section. If more than one type and/or size is required, indicate the location of each on the Drawings or on the Schedule at the end of this Section.
	2.2	STANDARD SERIES AIR CURTAIN ASSEMBLIES
		A.	Environmental Air Curtains: Standard Series Models for Heights to 10 feet (3048 mm).
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	STD 36-1: 36 Inch (915 mm) Wide Units: 3400 feet/min (17.3 m/s) single 1/2HP motor/fan assembly.
				b.	STD 38-1: 38 Inch (965 mm) Wide Units: 3225 feet/min (16.4 m/s) single 1/2HP motor/fan assembly.
				c.	STD 42-1: 42 Inch (1065 mm) Wide Units: 2925 feet/min (14.9 m/s) single 1/2HP motor/fan assembly.
				d.	STD 48-1: 48 Inch (1220 mm) Wide Units: 2550 feet/min (12.9 m/s) single 1/2HP motor/fan assembly.
				e.	STD 60-1: 60 Inch (1524 mm) Wide Units: 2040 feet/min (10.4 m/s) single 1/2HP motor/fan assembly.
				f.	STD 64-2: 64 inch (1625 mm) Wide Fan Units: 3825 feet/min (19.4 m/s) two 1/2HP motor/fan assemblies.
				g.	STD 72-2: 72 Inch (1830 mm) Wide Units: 3475 feet/min (17.6 m/s) two 1/2HP motor/fan assemblies.
				h.	STD 78-2: 78 Inch (1981 mm) Wide Units: 3200 feet/min (16.3 m/s) two 1/2HP motor/fan assemblies.
				i.	STD 84-2: 84 Inch (2133 mm) Wide Units: 2925 feet/min (14.9 m/s) two 1/2HP motor/fan assemblies.
				j.	STD 96-2: 96 Inch (2440 mm) Wide Units: 2550 feet/min (12.9 m/s) two 1/2HP motor/fan assemblies.
				k.	STD 96-3: 96 Inch (2440 mm) Wide Three Units: 3825 feet/min (19.4 m/s) three 1/2HP motor/fan assemblies.
				l.	STD 108-2: 108 Inch (2743 mm) Wide Units: 2550 feet/min (12.9 m/s) two 1/2HP motor/fan assemblies.
				m.	STD 108-3: 108 Inch (2743 mm) Wide Units: 3400 feet/min (17.3 m/s) three 1/2HP motor/fan assemblies.
				n.	STD 120-3: 120 Inch (3050 mm) Wide Units: 3060 feet/min (15.5 m/s) three 1/2HP motor/fan assemblies.
				o.	STD 144-3: 144 Inch (3660 mm) Wide Units: 2550 feet/min (12.9 m/s) three 1/2HP motor/fan assemblies.
				p.	STD 144-4: 144 Inch (3660 mm) Wide Units: 3400 feet/min (17.3 m/s) four 1/2HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Adjustable air inlet louver, full open/full close.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				c.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				d.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 1 inch, disposable.
					2)	Filter: Flat bank 2 inch, disposable.
					3)	Filter: V-bank 2 inch disposable.
					4)	Filter: V-bank 2 inch aluminum washable.
					5)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				e.	Speed: 2550 cu ft/min (1200 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units: 66 dBA.
				b.	Two Motor/Fan Units: 68 dBA.
				c.	Three Motor/Fan Units: 71 dBA.
				d.	Four Motor/Fan Units: 73 dBA.
		B.	Insect Control Air Curtains: Standard Series Models for Heights to 7 feet (2134 mm) certified to NSF/ANSI Standard 37.
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	N36-1: 36 Inch (915 mm) Wide Units: 3400 feet/min (17.3 m/s) single 1/2HP motor/fan assembly.
				b.	N38-1: 38 Inch (965 mm) Wide Units: 3225 feet/min (16.4 m/s) single 1/2HP motor/fan assembly.
				c.	N42-1: 42 Inch (1065 mm) Wide Units: 2925 feet/min (14.9 m/s) single 1/2HP motor/fan assembly.
				d.	N48-1: 48 Inch (1220 mm) Wide Units: 2550 feet/min (12.9 m/s) single 1/2HP motor/fan assembly.
				e.	N72-2: 72 Inch (1830 mm) Wide Units: 3475 feet/min (17.6 m/s) two 1/2HP motor/fan assemblies.
			3.	Air Speed at Floor:
				a.	Customer entry doors require a minimum of 600 fpm (3.05 m/s) at 3 feet (914 mm) from floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
				b.	Speed: 2550 cu ft/min (1200 L/s), minimum, per motor/fan assembly.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				c.	Type: Fixed air intake grille.
				d.	Type: Aluminum mesh, 1/4 inch (6.4 mm), washable filter.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units: 66 dBA.
				b.	Two Motor/Fan Units: 68 dBA.
		C.	Motor Fan Assembly: Design for easy removal, assembly, repair and maintenance.
			1.	Motor: Totally enclosed air over (TEAO) cooled motor with sealed lifetime pre-lubricated ball bearings, motor starter and thermal overload protection.
	** NOTE TO SPECIFIER ** Select one of the following three paragraphs and delete the ones not required. Single speed is standard.
				a.	Wired for single speed operation.
				b.	Wired for two speed operation.
				c.	Wired for three speed operation.
	** NOTE TO SPECIFIER ** Select the following paragraph(s) as required for specialty motors and delete the ones not required. Indicate the location of special use motors on the Drawings or on the Schedule at the end of this Section.
				d.	Provide wash down type motors, NEC IP-54 for the locations indicated.
				e.	Provide explosion proof type motors, NEC Class 1, Division 1, Group D for the locations indicated.
	** NOTE TO SPECIFIER ** Select one of the following three paragraphs and delete the ones not required. Note that Electrical Characteristics below do not include electric heater requirements. Note that all motors listed are based on 60 Hz service. For other voltages contact manufacturer.
				f.	Electrical Characteristics: 115V AC, single phase; 5.1 Amp full load per motor/fan.
				g.	Electrical Characteristics: 208/230V AC, single phase; 2.5 Amp full load per motor/fan.
				h.	Electrical Characteristics: 208/230V AC, three phase; 1.8/1.6 Amp full load per motor/fan.
				i.	Electrical Characteristics: 460V AC, three phase; 0.8 Amp full load per motor/fan.
			2.	Fans: Forward curved centrifugal type, double width, and double inlet design, directly driven by an electric motor.
			3.	Provide resilient isolation dampening mountings between motor frame and motor mounting pan.
			4.	Factory balanced blower wheel assembly statically and dynamically.
		D.	Housing: Self contained one-piece type with sufficient strength for mounting from pre-punched mounting holes at both ends to adjacent walls or ceiling without intermediate support.
			1.	Size:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated: 11-1/4 inches deep by 14 inches high (including discharge nozzle) by width of unit.
				b.	Electric Heated: 11-1/4 inches deep by 15-3/8 inches high (including discharge nozzle) by width of unit.
				c.	Hot Water/Steam Heated: Depth 15 inches single row and 16-1/2 inches double row by 14 inches high including discharge nozzle by width of unit plus 10 inches for manifolds.
			2.	Mounting:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated Inside Mount.
				b.	Heated Inside Mount.
				c.	Unheated Outside Mount.
				d.	Mount Location Indicated.
			3.	Material:
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				a.	Provide 18 and 20 gauge electro or hot dipped galvanized steel sheet housing conforming to ASTM A 591 and/or ASTM A 653.
				b.	Provide type 304 stainless steel housing with brushed finish. ASTM A 240/A 240M.
			4.	Air Inlet Grille and/or Filters: Provide air inlet grille and/or filters specified.
			5.	Discharge: Provide integral discharge nozzle specified.
	** NOTE TO SPECIFIER ** Select following paragraph for sheet steel housings only. Delete entirely for stainless steel housing. Select color required for steel housing and delete the ones not required. Battleship Gray is standard.
			6.	Finish and Color: Provide with, no VOC, corrosion resistant polyurethane powder coated finish for sheet steel housings.
				a.	Battleship Gray.
				b.	Obsidian Black.
				c.	Pearl White.
				d.	Titanium Silver.
				e.	Spartan Bronze.
				f.	Custom color as selected by the Architect.
	** NOTE TO SPECIFIER ** High Velocity Series air curtains are available in two types: Environmental and Flying Insect (NSF Certified) Control. They are available for openings 42 inches to 144 inches wide and heights up to 12 feet for environmental separation and temperature control applications and heights up to 10 feet for flying insect control applications (NSF Certified). High Velocity Series air curtains for temperature control applications are typically effective to resist wind loads up to 12 mph. Note that velocities specified for each unit are based on a 60 Hz power source. Select the type and sizes required and delete those not required. Indicate the door/opening height for each air curtain on the Drawings or on the Schedule at the end of this Section. If more than one type and/or size is required, indicate the location of each on the Drawings or on the Schedule at the end of this Section.
	2.3	HIGH VELOCITY SERIES AIR CURTAIN ASSEMBLIES
		A.	Environmental Air Curtains: High Velocity Series Models for Heights to 12 feet (3658 mm).
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	HV 42-1: 42 Inch (1065 mm) Wide Units: 4570 feet/min (23.2 m/s) single 1HP motor/fan assembly.
				b.	HV 48-1: 48 Inch (1220 mm) Wide Units: 4000 feet/min (20.3 m/s) single 1HP motor/fan assembly.
				c.	HV 60-1: 60 Inch (1524 mm) Wide Units: 3200 feet/min (16.3 m/s) single 1HP motor/fan assembly.
				d.	HV 72-2: 72 Inch (1830 mm) Wide Units: 5140 feet/min (26.1 m/s) two 1HP motor/fan assemblies.
				e.	HV 84-2: 84 Inch (2133 mm) Wide Units: 4570 feet/min (23.2 m/s) two 1HP motor/fan assemblies.
				f.	HV 96-2: 96 Inch (2440 mm) Wide Units: 4000 feet/min (20.3 m/s) two 1HP motor/fan assemblies.
				g.	HV 96-3: 96 Inch (2440 mm) Wide Units: 5000 feet/min (25.4 m/s) three 1HP motor/fan assemblies.
				h.	HV 108-2: 108 Inch (2743 mm) Wide Units: 3550 feet/min (18.0 m/s) two 1HP motor/fan assemblies.
				i.	HV 108-3: 108 Inch (2743 mm) Wide Units: 5500 feet/min (27.9 m/s) three 1HP motor/fan assemblies.
				j.	HV 120-2: 120 Inch (3050 mm) Wide Units: 3200 feet/min (16.3 m/s) two 1HP motor/fan assemblies.
				k.	HV 120-3: 120 Inch (3050 mm) Wide Units: 4800 feet/min (24.4 m/s) three 1HP motor/fan assemblies.
				l.	HV 144-3: 144 Inch (3660 mm) Wide Units: 4000 feet/min (20.3 m/s) three 1HP motor/fan assemblies.
				m.	HV 144-4: 144 Inch (3660 mm) Wide Units: 5140 feet/min (26.1 m/s) four 1HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Adjustable air inlet louver, full open/full close.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				c.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				d.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 1 inch, disposable.
					2)	Filter: Flat bank 2 inch, disposable.
					3)	Filter: V-bank 2 inch disposable.
					4)	Filter: V-bank 2 inch aluminum washable.
					5)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				e.	Speed: 4000 cu ft/min (1888 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units: 70 dBA.
				b.	Two Motor/Fan Units: 73 dBA.
				c.	Three Motor/Fan Units: 75 dBA.
				d.	Four Motor/Fan Units: 75 dBA.
		B.	Insect Control Air Curtains: High Velocity Series Models for Service Entry Heights to 7 feet (2134 mm) certified to NSF/ANSI Standard 37.
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	NH42-1: 42 Inch (1065 mm) Wide Units: 4570 feet/min (23.2 m/s) single 1HP motor/fan assembly.
				b.	NH48-1: 48 Inch (1220 mm) Wide Units: 4000 feet/min (20.3 m/s) single 1HP motor/fan assembly.
			3.	Air Speed at Floor:
				a.	Service entry doors require a minimum of 1600 fpm (8.13 m/s) at 3 feet (914 mm) from floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
				b.	Speed: 4000 cu ft/min (1888 L/s), minimum, per motor/fan assembly.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				c.	Type: Fixed air intake grille.
				d.	Type: Aluminum mesh, 1/4 inch (6.4 mm), washable filter.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
				a.	Single Motor/Fan Units: 70 dBA.
		C.	Motor Fan Assembly: Design for easy removal, assembly, repair and maintenance.
			1.	Motor: Totally enclosed air over (TEAO) cooled motor with sealed lifetime pre-lubricated ball bearings, motor starter and thermal overload protection.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the ones not required. Single speed is standard.
				a.	Wired for single speed operation.
				b.	Wired for two speed operation.
	** NOTE TO SPECIFIER ** Select the following paragraph(s) as required for specialty motors and delete the ones not required. Indicate the location of special use motors on the Drawings or on the Schedule at the end of this Section.
				c.	Provide wash down type motors, NEC IP-54 for the locations indicated.
				d.	Provide explosion proof type motors, NEC Class 1, Division 1, Group D for the locations indicated.
	** NOTE TO SPECIFIER ** Select one of the following four paragraphs and delete the ones not required. Note that Electrical Characteristics below do not include electric heater requirements. Note that all motors listed are based on 60 Hz service. For other voltages contact manufacturer.
				e.	Electrical Characteristics: 115V AC, single phase; 9.0 Amp full load per motor/fan.
				f.	Electrical Characteristics: 208/230V AC, single phase; 5.0 Amp full load per motor/fan.
				g.	Electrical Characteristics: 208/230V AC, three phase; 3.3/3.2 Amp full load per motor/fan.
				h.	Electrical Characteristics: 460V AC, three phase; 1.6 Amp full load per motor/fan.
			2.	Fans: Forward curved centrifugal type, double width, and double inlet design, directly coupled to an electric motor.
			3.	Provide resilient isolation dampening mountings between motor frame and motor mounting pan.
			4.	Factory balanced blower wheel assembly statically and dynamically.
		D.	Housing: Self contained one-piece type with sufficient strength for mounting from pre-punched mounting holes at both ends to adjacent walls or ceiling without intermediate support.
			1.	Size:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated: 14 inches deep by 18 inches high (including discharge nozzle) by width of unit.
				b.	Electric Heated: 14 inches deep by 18 inches high (including discharge nozzle) by width of unit.
				c.	Hot Water/Steam Heated: Depth 18-1/2 inches single row and 20 inches double row by 18 inches high (including discharge nozzle) by width of unit plus 10 inches for manifolds.
				d.	Indirect Fired Gas Heated: 60 inches deep by 36-1/4 inches high (including discharge nozzle) by width of unit.
			2.	Mounting:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated Inside Mount.
				b.	Heated Inside Mount.
				c.	Unheated Outside Mount.
				d.	Mount Location Indicated.
			3.	Material:
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				a.	Provide 18 and 20 gauge electro or hot dipped galvanized steel sheet housing conforming to ASTM A 591 and/or ASTM A 653.
				b.	Provide type 304 stainless steel housing with brushed finish. ASTM A 240/A 240M.
			4.	Air Inlet Grille and/or Filters: Provide air inlet grille and/or filters specified.
			5.	Discharge: Provide integral discharge nozzle specified.
	** NOTE TO SPECIFIER ** Select following paragraph for sheet steel housings only. Delete entirely for stainless steel housing. Select color required for steel housing and delete the ones not required. Battleship Gray is standard.
			6.	Finish and Color: Provide with, no VOC, corrosion resistant polyurethane powder coated finish for sheet steel housings.
				a.	Battleship Gray.
				b.	Obsidian Black.
				c.	Pearl White.
				d.	Titanium Silver.
				e.	Spartan Bronze.
				f.	Custom color as selected by the Architect.
	** NOTE TO SPECIFIER ** Extra Power Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 48 inches to 144 inches wide and heights up to 16 feet for environmental separation and temperature control applications and heights up to 14 feet for flying insect control applications. Extra Power Series air curtains for temperature control applications are typically effective to resist wind loads up to 14 mph. Note that velocities specified for each unit are based on a 60 Hz power source. Select the type and sizes required and delete those not required. Indicate the door/opening height for each air curtain on the Drawings or on the Schedule at the end of this Section. If more than one type and/or size is required, indicate the location of each on the Drawings or on the Schedule at the end of this Section.
	2.4	EXTRA POWER SERIES AIR CURTAIN ASSEMBLIES
		A.	Environmental and Flying Insect Control Air Curtains: Extra Power Series Models for Heights to 16 feet (4877 mm) for Environmental Separation and Temperature Control and 14 feet (4268 mm) for Flying Insect Control.
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	EP 48-1: 48 Inch (1220 mm) Wide Units: 4800 feet/min (24.4 m/s) single 3HP motor/fan assembly.
				b.	EP 60-1: 60 Inch (1524 mm) Wide Units: 3840 feet/min (19.5 m/s) single 3HP motor/fan assembly.
				c.	EP 72-2: 72 Inch (1830 mm) Wide Units: 6100 feet/min (31.0 m/s) two 3HP motor/fan assemblies.
				d.	EP 84-2: 84 Inch (2133 mm) Wide Units: 5485 feet/min (27.9 m/s) two 3HP motor/fan assemblies.
				e.	EP 96-2: 96 Inch (2440 mm) Wide Units: 4800 feet/min (24.4 m/s) two 3HP motor/fan assemblies.
				f.	EP 108-2: 108 Inch (2743 mm) Wide Units: 4200 feet/min (21.3 m/s) two 3HP motor/fan assemblies.
				g.	EP 108-3: 108 Inch (2743 mm) Wide Units: 6222 feet/min (31.6 m/s) three 3HP motor/fan assemblies.
				h.	EP 120-2: 120 Inch (3050 mm) Wide Units: 3840 feet/min (19.5 m/s) two 3HP motor/fan assemblies.
				i.	EP 120-3: 120 Inch (3050 mm) Wide Units: 5760 feet/min (29.3 m/s) three 3HP motor/fan assemblies.
				j.	EP 144-3: 144 Inch (3660 mm) Wide Units: 4800 feet/min (24.4 m/s) three 3HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Adjustable air inlet louver, full open/full close.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				c.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				d.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 1 inch, disposable.
					2)	Filter: Flat bank 2 inch, disposable.
					3)	Filter: V-bank 2 inch disposable.
					4)	Filter: V-bank 2 inch aluminum washable.
					5)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				e.	Speed: 4800 cu ft/min (2265 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units: 76 dBA.
				b.	Two Motor/Fan Units: 79 dBA.
				c.	Three Motor/Fan Units: 81 dBA.
		B.	Motor Fan Assembly: Design for easy removal, assembly, repair and maintenance.
			1.	Motor: Totally enclosed air over (TEAO) cooled motor with sealed lifetime pre-lubricated ball bearings, motor starter and thermal overload protection.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the ones not required. Single speed is standard.
				a.	Wired for single speed operation.
				b.	Wired for two speed operation.
	** NOTE TO SPECIFIER ** Select the following paragraph(s) as required for specialty motors and delete the ones not required. Indicate the location of special use motors on the Drawings or on the Schedule at the end of this Section.
				c.	Provide wash down type motors, NEC IP-54 for the locations indicated.
				d.	Provide explosion proof type motors, NEC Class 1, Division 1, Group D for the locations indicated.
	** NOTE TO SPECIFIER ** Select one of the following four paragraphs and delete the ones not required. Note that Electrical Characteristics below do not include electric heater requirements. Note that all motors listed are based on 60 Hz service. For other voltages contact manufacturer.
				e.	Electrical Characteristics: 115V AC, single phase; 30.0 Amp full load per motor/fan.
				f.	Electrical Characteristics: 208/230V AC, single phase; 16.5/15.0 Amp full load per motor/fan.
				g.	Electrical Characteristics: 208/230V AC, three phase; 8.3/7.6 Amp full load per motor/fan.
				h.	Electrical Characteristics: 460V AC, three phase; 3.8 Amp full load per motor/fan.
			2.	Fans: Forward curved centrifugal type, double width, and double inlet design, directly coupled to an electric motor.
			3.	Provide resilient isolation dampening mountings between motor frame and motor mounting pan.
			4.	Factory balanced blower wheel assembly statically and dynamically.
		C.	Housing: Self contained one-piece type with sufficient strength for mounting from pre-punched mounting holes at both ends to adjacent walls or ceiling without intermediate support.
			1.	Size:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated: 14 inches deep by 18 inches high (including discharge nozzle) by width of unit.
				b.	Electric Heated: 14 inches deep by 18 inches high (including discharge nozzle) by width of unit.
				c.	Hot Water/Steam Heated: Depth 18-1/2 inches single row and 20 inches double row by 18 inches high (including discharge nozzle) by width of unit plus 10 inches for manifolds.
				d.	Indirect Fired Gas Heated: 60 inches deep by 36-1/4 inches high (including discharge nozzle) by width of unit.
			2.	Mounting:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated Inside Mount.
				b.	Heated Inside Mount.
				c.	Unheated Outside Mount.
				d.	Mount Location Indicated.
			3.	Material:
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				a.	Provide 18 and 20 gauge electro or hot dipped galvanized steel sheet housing conforming to ASTM A 591 and/or ASTM A 653.
				b.	Provide type 304 stainless steel housing with brushed finish. ASTM A 240/A 240M.
			4.	Air Inlet Grille and/or Filters: Provide air inlet grille and/or filters specified.
			5.	Discharge: Provide integral discharge nozzle specified.
	** NOTE TO SPECIFIER ** Select following paragraph for sheet steel housings only. Delete entirely for stainless steel housing. Select color required for steel housing and delete the ones not required. Battleship Gray is standard.
			6.	Finish and Color: Provide with, no VOC, corrosion resistant polyurethane powder coated finish for sheet steel housings.
				a.	Battleship Gray.
				b.	Obsidian Black.
				c.	Pearl White.
				d.	Titanium Silver.
				e.	Spartan Bronze.
				f.	Custom color as selected by the Architect.
	** NOTE TO SPECIFIER ** Wind Stopping Series air curtains are available for Environmental and Flying Insect Control. Wind Stopping Series air curtains for temperature control applications are typically effective to resist wind loads up to 15 mph. Note that velocities specified for each unit are based on a 60 Hz power source. Select the type and sizes required and delete those not required. Indicate the door/opening height for each air curtain on the Drawings or on the Schedule at the end of this Section. If more than one type and/or size is required, indicate the location of each on the Drawings or on the Schedule at the end of this Section.
	2.5	WIND STOPPING SERIES AIR CURTAIN ASSEMBLIES
	** NOTE TO SPECIFIER ** Wind Stopping 14 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 48 inches to 216 inches wide and heights up to 14 feet for environmental separation, temperature control and flying insect control applications.
		A.	Environmental and Flying Insect Control Air Curtains: Wind Stopping 14 Series Models for Heights to 14 feet (4267 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	WMI 48-1: 51 Inch (1296 mm) Wide Units: 5500 feet/min (27.9 m/s) single 2HP motor/fan assembly.
				b.	WMI 60-1: 63 Inch (1601 mm) Wide Units: 5200 feet/min (26.4 m/s) single 3HP motor/fan assembly.
				c.	WMI 72-1: 75 Inch (1906 mm) Wide Units: 5800 feet/min (29.5 m/s) single 3HP motor/fan assemblies.
				d.	WMI 84-2: 87 Inch (2211 mm) Wide Units: 7300 feet/min (37.1 m/s) two 2HP motor/fan assemblies.
				e.	WMI 96-2: 99 Inch (2516 mm) Wide Units: 5500 feet/min (27.9 m/s) two 2HP motor/fan assemblies.
				f.	WMI 108-2: 111 Inch (2821 mm) Wide Units: 4900 feet/min (24.9 m/s) two 3HP motor/fan assemblies.
				g.	WMI 120-2: 123 Inch (3126 mm) Wide Units: 5200 feet/min (24.6 m/s) two 3HP motor/fan assemblies.
				h.	WMI 144-2: 147 Inch (3736 mm) Wide Units: 5800 feet/min (29.5 m/s) three 3HP motor/fan assemblies.
				i.	WMI 168-3: 171 Inch (4346 mm) Wide Units: 4900 feet/min (24.9 m/s) three 3HP motor/fan assemblies.
				j.	WMI 180-3: 183 Inch (4651 mm) Wide Units: 7600 feet/min (38.6 m/s) three 3HP motor/fan assemblies.
				k.	WMI 192-4: 195 Inch (4956 mm) Wide Units: 3051 feet/min (15.5 m/s) four 2HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 4577 cu ft/min (2160 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units: 65 dBA.
				b.	Two Motor/Fan Units: 66 dBA.
				c.	Three Motor/Fan Units: 67 dBA.
				d.	Four Motor/Fan Units: 68 dBA.
	** NOTE TO SPECIFIER ** Wind Stopping 16 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 48 inches to 216 inches wide and heights up to 16 feet for environmental separation, temperature control and flying insect control applications.
		B.	Environmental and Flying Insect Control Air Curtains: Wind Stopping 16 Series Models for Heights to 16 feet (4877 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	WMH 48-1: 51 Inch (1296 mm) Wide Units: 7300 feet/min (37.1 m/s) single 5HP motor/fan assembly.
				b.	WMH 60-1: 63 Inch (1601 mm) Wide Units: 7600 feet/min (38.6 m/s) single 5HP motor/fan assembly.
				c.	WMH 72-1: 75 Inch (1906 mm) Wide Units: 7400 feet/min (37.6 m/s) single 7HP motor/fan assemblies.
				d.	WMH 84-2: 87 Inch (2211 mm) Wide Units: 7300 feet/min (37.1 m/s) two 5HP motor/fan assemblies.
				e.	WMH 96-2: 99 Inch (2516 mm) Wide Units: 7300 feet/min (37.1 m/s) two 5HP motor/fan assemblies.
				f.	WMH 108-2: 111 Inch (2821 mm) Wide Units: 6700 feet/min (34.0 m/s) two 5HP motor/fan assemblies.
				g.	WMH 120-2: 123 Inch (3126 mm) Wide Units: 7600 feet/min (38.6 m/s) two 5HP motor/fan assemblies.
				h.	WMH 144-2: 147 Inch (3736 mm) Wide Units: 7400 feet/min (37.6 m/s) two 7HP motor/fan assemblies.
				i.	WMH 168-3: 171 Inch (4346 mm) Wide Units: 6700 feet/min (38.6 m/s) three 5HP motor/fan assemblies.
				j.	WMH 180-3: 183 Inch (4651 mm) Wide Units: 7600 feet/min (38.6 m/s) three 5HP motor/fan assemblies.
				k.	WMH 192-4: 195 Inch (4956 mm) Wide Units: 7300 feet/min (37.1 m/s) four 5HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 6595 cu ft/min (3113 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan, 5HP Units: 68 dBA.
				b.	Single Motor/Fan, 7HP Units: 71 dBA.
				c.	Two Motor/Fan, 5HP Units: 69 dBA.
				d.	Two Motor/Fan, 7HP Units: 72 dBA.
				e.	Three Motor/Fan, 5HP Units: 70 dBA.
				f.	Three Motor/Fan, 7HP Units: 72 dBA.
				g.	Four Motor/Fan, 5HP Units: 72 dBA.
		C.	Motor Assembly: Design for easy removal, adjustments, repair and maintenance.
			1.	Motor: Totally enclosed fan cooled (TEFC) motor with sealed lifetime pre-lubricated ball bearings.
				a.	Wired for single speed operation, but inverter rated.
	** NOTE TO SPECIFIER ** Select the following paragraph(s) as required for specialty motors and delete the ones not required. Indicate the location of special use motors on the Drawings or on the Schedule at the end of this Section.
				b.	Provide wash down type motors, NEC IP-54 for the locations indicated.
				c.	Provide explosion proof type motors, NEC Class 1, Division 1, Group D for the locations indicated.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the ones not required. Note that Electrical Characteristics below do not include electric heater requirements. Note that all motors listed are based on 60 Hz service. For other voltages contact manufacturer.
				d.	Electrical Characteristics: 208/230V AC, three phase; 8.6/7.8 Amp full load per motor/fan.
				e.	Electrical Characteristics: 460V AC, three phase; 3.9 Amp full load per motor/fan.
			2.	Fans: Forward curved centrifugal type, double width, and double inlet design, directly driven to an electric motor.
			3.	Provide rigid mounted base between motor and frame.
			4.	Factory balanced blower wheel assembly statically and dynamically.
		D.	Housing: Self contained one-piece type with sufficient strength for mounting from pre-punched mounting holes at both ends to adjacent walls or ceiling without intermediate support.
			1.	Size:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated: 22 inches deep by 22 inches high by width of unit.
				b.	Electric Heated: 26 inches deep by 22 inches high by width of unit.
				c.	Hot Water/Steam Heated: Depth 28 inches single row and 30 inches double row by 14 inches high (36 inches for furnace) by width of unit plus 10 inches for manifolds.
				d.	Indirect Fired Gas Heated: 70 inches deep (including transition and furnace) by 22 inches high by width of unit.
			2.	Mounting:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated Inside Mount.
				b.	Heated Inside Mount.
				c.	Unheated Outside Mount.
				d.	Mount Location Indicated.
			3.	Material:
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				a.	Provide 10, 12 and 14 gauge electro or hot dipped galvanized steel sheet housing conforming to ASTM A 591 and/or ASTM A 653.
				b.	Provide type 304 stainless steel housing with brushed finish. ASTM A 240/A 240M.
			4.	Air Inlet Grille and/or Filters: Provide air inlet grille and/or filters specified.
			5.	Discharge: Provide integral discharge nozzle specified.
	** NOTE TO SPECIFIER ** Select following paragraph for sheet steel housings only. Delete entirely for stainless steel housing. Select color required for steel housing and delete the ones not required. Battleship Gray is standard.
			6.	Finish and Color: Provide with, no VOC, corrosion resistant polyurethane powder coated finish for sheet steel housings.
				a.	Battleship Gray.
				b.	Obsidian Black.
				c.	Pearl White.
				d.	Titanium Silver.
				e.	Spartan Bronze.
				f.	Custom color as selected by the Architect.
	** NOTE TO SPECIFIER ** WindGuard Series air curtains are available for Environmental and Flying Insect Control. WindGuard Series air curtains for temperature control applications are typically effective to resist wind loads up to 30 mph. Note that velocities specified for each unit are based on a 60 Hz power source. Select the type and sizes required and delete those not required. Indicate the door/opening height for each air curtain on the Drawings or on the Schedule at the end of this Section. If more than one type and/or size is required, indicate the location of each on the Drawings or on the Schedule at the end of this Section.
	2.6	WINDGUARD SERIES AIR CURTAIN ASSEMBLIES
	** NOTE TO SPECIFIER ** WindGuard 14 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 96 inches to 192 inches wide and heights up to 14 feet for environmental separation, temperature control and flying insect control applications.
		A.	WindGuard 14 Series Environmental and Flying Insect Control Air Curtains: Models for Heights to 14 feet (4267 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	BD 14 96-1: 107 Inch (2720 mm) Wide Units: 4500 feet/min (22.9 m/s) single 5HP motor/fan assemblies.
				b.	BD 14 120-1: 131 Inch (3329 mm) Wide Units: 4500 feet/min (22.9 m/s) single 5HP motor/fan assemblies.
				c.	BD 14 144-1: 155 Inch (3939 mm) Wide Units: 4500 feet/min (22.9 m/s) single 7-1/2HP motor/fan assemblies.
				d.	BD 14 168-1: 179 Inch (4549 mm) Wide Units: 4500 feet/min (22.9 m/s) single 7-1/2HP motor/fan assemblies.
				e.	BD 14 192-1: 203 Inch (5159 mm) Wide Units: 4500 feet/min (22.9 m/s) single 10HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 11700 cu ft/min (5522 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan, 5HP Units: 73 dBA.
				b.	Single Motor/Fan, 7-1/2HP Units: 74 dBA.
				c.	Single Motor/Fan, 10HP Units: 75 dBA.
	** NOTE TO SPECIFIER ** WindGuard 18 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 96 inches to 192 inches wide and heights up to 18 feet for environmental separation, temperature control and flying insect control applications.
		B.	WindGuard 18 Series Environmental and Flying Insect Control Air Curtains: Models for Heights to 18 feet (5487 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	BD 18 96-1: 107 Inch (2720 mm) Wide Units: 5100 feet/min (25.9 m/s) single 7-1/2HP motor/fan assemblies.
				b.	BD 18 120-1: 131 Inch (3329 mm) Wide Units: 5100 feet/min (25.9 m/s) single 7-1/2HP motor/fan assemblies.
				c.	BD 18 144-1: 155 Inch (3939 mm) Wide Units: 5100 feet/min (25.9 m/s) single 10HP motor/fan assemblies.
				d.	BD 18 168-1: 179 Inch (4549 mm) Wide Units: 5100 feet/min (25.9m/s) single 10HP motor/fan assemblies.
				e.	BD 18 192-1: 203 Inch (5159 mm) Wide Units: 5100 feet/min (25.9 m/s) single 15HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 13800 cu ft/min (6513 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan, 7-1/2HP Units: 75 dBA.
				b.	Single Motor/Fan, 10HP Units: 76 dBA.
				c.	Single Motor/Fan, 15HP Units: 76 dBA.
	** NOTE TO SPECIFIER ** WindGuard 22 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 96 inches to 192 inches wide and heights up to 22 feet for environmental separation, temperature control and flying insect control applications.
		C.	WindGuard 22 Series Environmental and Flying Insect Control Air Curtains: Models for Heights to 22 feet (6706 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	BD 22 96-1: 107 Inch (2720 mm) Wide Units: 6000 feet/min (30.5 m/s) single 10HP motor/fan assemblies.
				b.	BD 22 120-1: 131 Inch (3329 mm) Wide Units: 6000 feet/min (30.5 m/s) single 15HP motor/fan assemblies.
				c.	BD 22 144-1: 155 Inch (3939 mm) Wide Units: 6000 feet/min (30.5 m/s) single 15HP motor/fan assemblies.
				d.	BD 22 168-1: 179 Inch (4549 mm) Wide Units: 6000 feet/min (30.5 m/s) single 20HP motor/fan assemblies.
				e.	BD 22 192-1: 203 Inch (5159 mm) Wide Units: 6000 feet/min (30.5 m/s) single 20HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 13800 cu ft/min (6513 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan, 10HP Units: 75 dBA.
				b.	Single Motor/Fan, 15HP Units: 76 dBA.
				c.	Single Motor/Fan, 20HP Units: 77 dBA.
	** NOTE TO SPECIFIER ** WindGuard 26 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 96 inches to 192 inches wide and heights up to 26 feet for environmental separation, temperature control and flying insect control applications.
		D.	WindGuard 26 Series Environmental and Flying Insect Control Air Curtains: Models for Heights to 26 feet (7925 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	BD 26 96-1: 107 Inch (2720 mm) Wide Units: 6500 feet/min (33.0 m/s) single 10HP motor/fan assemblies.
				b.	BD 26 120-1: 131 Inch (3329 mm) Wide Units: 6500 feet/min (33.0 m/s) single 15HP motor/fan assemblies.
				c.	BD 26 144-1: 155 Inch (3939 mm) Wide Units: 6500 feet/min (33.0 m/s) single 15HP motor/fan assemblies.
				d.	BD 26 168-1: 179 Inch (4549 mm) Wide Units: 6500 feet/min (33.0 m/s) single 20HP motor/fan assemblies.
				e.	BD 26 192-1: 203 Inch (5159 mm) Wide Units: 6500 feet/min (33.0 m/s) single 20HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 18700 cu ft/min (8825 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan, 15HP Units: 76 dBA.
				b.	Single Motor/Fan, 20HP Units: 77 dBA.
	** NOTE TO SPECIFIER ** WindGuard 30 Series air curtains are available for Environmental and Flying Insect Control. They are available for openings 96 inches to 192 inches wide and heights up to 30 feet for environmental separation, temperature control and flying insect control applications.
		E.	WindGuard 30 Series Environmental and Flying Insect Control Air Curtains: Models for Heights to 30 feet (9134 mm).
			1.	Discharge Nozzle: Adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	BD 30 96-1: 107 Inch (2720 mm) Wide Units: 6950 feet/min (35.3 m/s) single 10HP motor/fan assemblies.
				b.	BD 30 120-1: 131 Inch (3329 mm) Wide Units: 6950 feet/min (35.3 m/s) single 15HP motor/fan assemblies.
				c.	BD 30 144-1: 155 Inch (3939 mm) Wide Units: 6950 feet/min (35.3 m/s) single 15HP motor/fan assemblies.
				d.	BD 30 168-1: 179 Inch (4549 mm) Wide Units: 6950 feet/min (35.3 m/s) single 20HP motor/fan assemblies.
				e.	BD 30 192-1: 203 Inch (5159 mm) Wide Units: 6950 feet/min (35.3 m/s) single 20HP motor/fan assemblies.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Expanded Metal: 85% open area.
				c.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 2 inch, disposable.
					2)	Filter: V-bank 2 inch disposable.
					3)	Filter: V-bank 2 inch aluminum washable.
				d.	Speed: 19200 cu ft/min (9061 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** Coordinate selection with the Model specified above.
				a.	Single Motor/Fan, 20HP Units: 77 dBA.
		F.	Motor Fan Assembly: Design for easy removal, assembly, repair and maintenance.
			1.	Motor: Totally enclosed fan cooled (TEFC) motor with sealed lifetime pre-lubricated ball bearings.
				a.	Wired for single speed operation, but inverter rated.
	** NOTE TO SPECIFIER ** Select the following paragraph(s) as required for specialty motors and delete the ones not required. Indicate the location of special use motors on the Drawings or on the Schedule at the end of this Section.
				b.	Provide wash down type motors, NEC IP-54 for the locations indicated.
				c.	Provide explosion proof type motors, NEC Class 1, Division 1, Group D for the locations indicated.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the ones not required. Note that Electrical Characteristics below do not include electric heater requirements. Note that all motors listed are based on 60 Hz service. For units wider than 96 inches, refer to submittal for total amps. For other voltages contact manufacturer.
				d.	Electrical Characteristics: 208/230V AC, three phase; 14.2/13.0 Amp full load per motor/fan for units up to 96 inches wide.
				e.	Electrical Characteristics: 460V AC, three phase; 6.5 Amp full load per motor/fan for units up to 96 inches wide.
			2.	Fans: Forward curved centrifugal type, double width, and double inlet design, directly driven to an electric motor.
			3.	Provide rigid mounted base between motor and frame.
			4.	Factory balanced blower wheel assembly statically and dynamically.
		G.	Housing: Self contained one-piece type with sufficient strength for mounting from pre-punched mounting holes at both ends to adjacent walls or ceiling without intermediate support.
			1.	Size:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated: 28 inches deep by 36 inches high by width of unit.
				b.	Electric Heated: 36 inches deep by 28 inches high by width of unit.
				c.	Hot Water/Steam Heated: Depth 42 inches single row and 44 inches double row by 28 inches high (36 inches for furnace) by width of unit plus 10 inches for manifolds.
				d.	Indirect Fired Gas Heated: 74 inches deep (including transition and furnace) by 36-1/4 inches high by width of unit.
			2.	Mounting:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated Inside Mount.
				b.	Heated Inside Mount.
				c.	Unheated Outside Mount.
				d.	Mount Location Indicated.
			3.	Material:
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				a.	Provide 10, 12 and 14 gauge electro or hot dipped galvanized steel sheet housing conforming to ASTM A 591 and/or ASTM A 653.
				b.	Provide type 304 stainless steel housing with brushed finish. ASTM A 240/A 240M.
			4.	Air Inlet Grille and/or Filters: Provide air inlet grille and/or filters specified.
			5.	Discharge: Provide integral discharge nozzle specified.
	** NOTE TO SPECIFIER ** Select following paragraph for sheet steel housings only. Delete entirely for stainless steel housing. Select color required for steel housing and delete the ones not required. Battleship Gray is standard.
			6.	Finish and Color: Provide with, no VOC, corrosion resistant polyurethane powder coated finish for sheet steel housings.
				a.	Battleship Gray.
				b.	Obsidian Black.
				c.	Pearl White.
				d.	Titanium Silver.
				e.	Spartan Bronze.
				f.	Custom color as selected by the Architect.
	** NOTE TO SPECIFIER ** Low Profile Series air curtains are available in two types: Environmental and Flying Insect (NSF Certified) Control. They are available for openings 25 inches to 144 inches wide and heights up to 8 feet for environmental separation and temperature control applications and heights up to 7 feet for flying insect control applications (NSF Certified). Countertop and/or concessions stand installation require intake filters. Low Profile Series air curtains for temperature control applications are typically effective to resist wind loads up to 9 mph. Note that velocities specified for each unit are based on a 60 Hz power source. Select the type and sizes required and delete those not required. Indicate the door/opening height for each air curtain on the Drawings or on the Schedule at the end of this Section. If more than one type and/or size is required, indicate the location of each on the Drawings or on the Schedule at the end of this Section.
	2.7	LOW PROFILE SERIES AIR CURTAIN ASSEMBLIES
		A.	Environmental Air Curtains: Low Profile Series Models for Heights to 8 feet (2434 mm).
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	LPV 25-1: 25 Inch (635 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				b.	LPV 28-1: 28 Inch (711 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				c.	LPV 30-1: 30 Inch (762 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				d.	LPV 36-1: 36 Inch (915 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				e.	LPV 42-1: 42 Inch (1067 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				f.	LPV 48-1: 48 Inch (1220 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				g.	LPV 60-1: 60 Inch (1524 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				h.	LPV 72-1: 72 Inch (1830 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				i.	LPV 84-2: 84 Inch (2133 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				j.	LPV 96-2: 96 Inch (2440 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				k.	LPV 108-2: 108 Inch (2743 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				l.	LPV 120-2: 120 Inch (3050 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				m.	LPV 144-2: 144 Inch (3660 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
			3.	Air Speed at Floor: Minimum of 300 fpm (1.53 m/s) at 3 feet (914 mm) from the floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
	** NOTE TO SPECIFIER ** Select one of the following air inlet type paragraphs and delete the ones not required.
				b.	Type: Adjustable air inlet louver, full open/full close.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				c.	Type: Fixed air intake grille.
	** NOTE TO SPECIFIER ** Include the following optional filter paragraph if required and delete if not required.
					1)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				d.	Type: Filter Only as follows:
	** NOTE TO SPECIFIER ** Include one of the following optional filter paragraphs as required and delete those not required.
					1)	Filter: Flat bank 1 inch, disposable.
					2)	Filter: Flat bank 2 inch, disposable.
					3)	Filter: V-bank 2 inch disposable.
					4)	Filter: V-bank 2 inch aluminum washable.
					5)	Filter: Aluminum mesh, 1/4 inch (6.4 mm), washable.
				e.	Speed: 625 cu ft/min (295 L/s), minimum, per motor/fan assembly.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units (LPV 25-LPV 36): 49 dBA.
				b.	Single Motor/Fan Units (LPV 42): 50 dBA.
				c.	Single Motor/Fan Units (LPV 48): 52 dBA.
				d.	Single Motor/Fan Units (LPV 60-LPV 72): 53 dBA.
				e.	Two Motor/Fan Units (LPV 84-LPV 96): 53 dBA.
				f.	Two Motor/Fan Units (LPV 108-LPV 144): 54 dBA.
		B.	Insect Control Air Curtains: Low Profile Series Models for Concession Stand Heights to 4 feet (1219 mm) or Customer Entry Heights to 7 feet (2134 mm) certified to NSF/ANSI Standard 37.
			1.	Discharge Nozzle: Wedge-shaped discharge outlet nozzle with adjustable air foil vanes with a plus/minus 40 degree sweep front to back.
			2.	Air Velocity at Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for the model required and delete the ones not required. If more than one type is required show the location of each type on the Drawings or on the Schedule at the end of this Section.
				a.	LPN 25-1: 25 Inch (635 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				b.	LPN 28-1: 28 Inch (711 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				c.	LPN 30-1: 30 Inch (762 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				d.	LPN 36-1: 36 Inch (915 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				e.	LPN 42-1: 42 Inch (1065 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				f.	LPN 48-1: 48 Inch (1220 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				g.	LPN 60-1: 60 Inch (1524 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				h.	LPN 72-1: 72 Inch (1830 mm) Wide Units: 1800 feet/min (9.1 m/s) single 1/6HP motor/fan assembly.
				i.	LPN 84-2: 84 Inch (2133 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				j.	LPN 96-2: 96 Inch (2440 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				k.	LPN 108-2: 108 Inch (2743 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				l.	LPN 120-2: 120 Inch (3050 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
				m.	LPN 144-2: 144 Inch (3660 mm) Wide Units: 1800 feet/min (9.1 m/s) two 1/6HP motor/fan assembly.
			3.	Air Speed at Floor:
				a.	Concession stand windows require a minimum of 600 fpm (3.05 m/s) at 16 inches (406.4 mm) from countertop.
				b.	Customer entry doors require a minimum of 600 fpm (3.05 m/s) at 3 feet (914 mm) from floor.
			4.	Air Inlet Grille and Filters:
				a.	Location: Front.
				b.	Speed: 625 cu ft/min (295 L/s), minimum, per motor/fan assembly.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				c.	Type: Fixed air intake grille.
				d.	Type: Aluminum mesh, 1/4 inch (6.4 mm), washable filter.
			5.	Sound Pressure Level At 10 feet (3 m) From Nozzle:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Coordinate selection with the Model specified above.
				a.	Single Motor/Fan Units (LPV 25-LPV 36): 49 dBA.
				b.	Single Motor/Fan Units (LPV 42): 50 dBA.
				c.	Single Motor/Fan Units (LPV 48): 52 dBA.
				d.	Single Motor/Fan Units (LPV 60-LPV 72): 53 dBA.
				e.	Two Motor/Fan Units (LPV 84-LPV 96): 53 dBA.
				f.	Two Motor/Fan Units (LPV 108-LPV 144): 54 dBA.
		C.	Motor Fan Assembly: Design for easy removal, assembly, repair and maintenance.
			1.	Motor: Totally enclosed air over (TEAO) cooled motor with sealed lifetime pre-lubricated ball bearings, motor starter and thermal overload protection.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the ones not required.
				a.	LPN Units: Wired for single speed operation.
				b.	LPV Units: Wired for variable speed operation.
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required. Note that Electrical Characteristics below do not include electric heater requirements. Note that all motors listed are based on 60 Hz service. For units wider than 84 inches, refer to submittal for total amps. For other voltages, contact manufacturer.
				c.	Electrical Characteristics: 115V AC, single phase; 2.4 Amp (units up to 48 inches wide) or 2.6 Amp (units 60 to 72 inches wide) full load per motor/fan.
				d.	Electrical Characteristics: 208/230V AC, single phase; 1.2 Amp (units up to 48 inches wide) 1.4 Amp (units 60 to 70 inches wide) full load per motor/fan.
			2.	Fans: Forward curved centrifugal type, double width, and double inlet design, directly driven to an electric motor.
			3.	Provide resilient isolation dampening mountings between motor frame and motor mounting pan.
			4.	Factory balanced blower wheel assembly statically and dynamically.
		D.	Housing: Self contained one-piece type with sufficient strength for mounting from pre-punched mounting holes at both ends to adjacent walls or ceiling without intermediate support.
			1.	Size:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated: 10-3/4 inches deep by 8 inches high (including discharge nozzle) by width of unit.
				b.	Electric Heated: 10-3/4 inches deep by 8 inches high (including discharge nozzle) by width of unit.
				c.	Hot Water/Steam Heated: Depth 10-3/4 inches by 8 inches high including discharge nozzle by width of unit plus 10 inches for manifolds.
			2.	Mounting:
	** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete the ones not required. Heated units are mounted inside only; coordinate with heating paragraphs if required.
				a.	Unheated Inside Mount.
				b.	Heated Inside Mount.
				c.	Unheated Outside Mount.
				d.	Mount Location Indicated.
			3.	Material:
	** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.
				a.	Provide 18 and 20 gauge electro or hot dipped galvanized steel sheet housing conforming to ASTM A 591 and/or ASTM A 653.
				b.	Provide type 304 stainless steel housing with brushed finish. ASTM A 240/A 240M.
			4.	Air Inlet Grille and/or Filters: Provide air inlet grille and/or filters specified.
			5.	Discharge: Provide integral discharge nozzle specified.
	** NOTE TO SPECIFIER ** Select following paragraph for sheet steel housings only. Delete entirely for stainless steel housing. Select color required for steel housing and delete the ones not required. Obsidian Black is standard.
			6.	Finish and Color: Provide with, no VOC, corrosion resistant polyurethane powder coated finish for sheet steel housings.
				a.	Battleship Gray.
				b.	Obsidian Black.
				c.	Pearl White.
				d.	Titanium Silver.
				e.	Spartan Bronze.
	** NOTE TO SPECIFIER ** Select the optional components required from the following paragraphs for the air curtains specified. If more than one type of air curtain or component is required, indicate the location of each curtain and the components required for each location on the Drawings or on the Schedule at the end of this Section. Contact Mars Air Systems for specialty steam and hot water heaters other than those included in the specification.
	2.8	COMPONENTS
		A.	Electric Heaters: Provide complete with motor control panel factory mounted to air curtain housing, and thermostat to be field installed.
			1.	Temperature limit controller.
			2.	Thermostat: Wall-mounted, 24-Volt operation, with heater on/off selection.
			3.	Heating Coils: UL approved. Factory mounted on the discharge end of the motor fan assembly and located within the nozzle outlet.
		B.	Steam Heaters: Provide finned tube steam coils for field mounting on air intake side of the air curtain cabinet with opposite end connections.
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs.
			1.	Output: Air curtain manufacturer's standard, one-row coils.
			2.	Output: Air curtain manufacturer's standard, two-row coils.
			3.	Coils: Certified in accordance with ARI 410.
	** NOTE TO SPECIFIER ** Delete two of the following three connections paragraphs.
			4.	Connections: Opposite end.
			5.	Connections: Same end, right hand.
			6.	Connections: Same end, left hand.
			7.	Casing: One piece unpainted galvanized steel, bolted to air curtain housing.
			8.	Supply and return fittings on ends of casing.
	** NOTE TO SPECIFIER ** Thermostat is optional. Delete if not required.
			9.	Thermostat: Wall-mounted, 110-Volt operation, with heater on/off selection.
		C.	Hot Water Heaters: Provide finned tube water coils for field mounting on air intake side of the air curtain cabinet with opposite end connections.
	** NOTE TO SPECIFIER ** Delete one of the following two output paragraphs.
			1.	Output: Air curtain manufacturer's standard, one-row coils.
			2.	Output: Air curtain manufacturer's standard, two-row coils.
			3.	Coils: Certified in accordance with ARI 410.
	** NOTE TO SPECIFIER ** Delete two of the following three connections paragraphs.
			4.	Connections: Opposite end.
			5.	Connections: Same end, right hand.
			6.	Connections: Same end, left hand.
			7.	Casing: One piece unpainted galvanized steel, bolted to air curtain housing.
			8.	Supply and return fittings on top of casing.
	** NOTE TO SPECIFIER ** Thermostat is optional. Delete if not required.
			9.	Thermostat: Wall-mounted, 110-Volt operation, with heater on/off selection.
		D.	Gas Heaters: Provide field mounted indirect natural gas fired, power vented duct furnace, with aluminized steel heat exchanger and die-formed stainless steel insert burners; manifolds, orifices, flame sensor, and igniter easily removable as an assembly.
			1.	Output: Air curtain manufacturer's standard.
			2.	Standards: Complies with:
				a.	Canadian Standards Association (CSA) labeled for US and Canadian application.
				b.	ANSI Z223/NFPA 54 National Fuel Gas Code.
				c.	CAN/CGA B149.1 Installation Codes for Natural Gas Burning Appliances and Equipment.
	** NOTE TO SPECIFIER ** Select fuel type required and delete the one not required.
			3.	Fuel Type: Provide orifices for:
				a.	Natural gas.
				b.	LP.
			4.	24 V control voltage transformer.
			5.	Combination single-stage gas control system with regulated combination redundant gas valve and intermittent spark pilot with electronic flame supervision.
			6.	Limit and safety controls.
	** NOTE TO SPECIFIER ** Thermostat is optional. Delete if not required.
			7.	Thermostat: Wall-mounted, 24-Volt operation, with heater on/off selection.
	** NOTE TO SPECIFIER ** Select one of the following Motor Control Panel paragraphs as required and delete the ones not required. The first paragraph is for Unheated Units, the second is for Electric Heated Units and the third is for Hot Water, Steam or Gas Heated Units.
		E.	Motor Control Panels For Unheated Units: Recommended for all three phase units and single phase units with combined motor capacities of more than 1HP whenever a door limit switch is used to automatically start and stop the air curtain. Provide motor control panels as follows:
	** NOTE TO SPECIFIER ** Delete all but one of the following two mounting paragraphs. Standard factory mounting for motor control panels is on the right side, however left hand mounting can be provided.
			1.	Mounting: Factory mounted on right hand side of air curtain housing.
			2.	Mounting: Factory mounted on left hand side of air curtain housing.
			3.	Electrical components UL/CUL listed.
		F.	Motor Control Panels For Electric Heated Units: Recommended for all three phase units and single phase units with combined motor capacities of more than 1HP. Motor Control Panel is included for all electric heated units. Thermostat is provided for field installation. Provide motor control panels as follows:
	** NOTE TO SPECIFIER ** Delete one of the following two mounting paragraphs. Standard factory mounting for motor control panels on electric heated units are on the right side, however left hand mounting can be provided.
			1.	Mounting: Factory mounted on right hand side of air curtain housing.
			2.	Mounting: Factory mounted on left hand side of air curtain housing.
			3.	Electrical components UL/CUL listed.
		G.	Motor Control Panels For Hot Water, Steam and Gas Heated Units: Recommended for all three phase units and single phase units with combined motor capacities of more than 1HP whenever a door limit switch is used to automatically start and stop the air curtain. Provide motor control panels as follows:
	** NOTE TO SPECIFIER ** Delete all but one of the following three mounting paragraphs.
			1.	Mounting: Shipped loose to be field mounted.
			2.	Mounting: Factory mounted on right hand side of air curtain housing.
			3.	Mounting: Factory mounted on left hand side of air curtain housing.
			4.	Provide with remote mount thermostat for field installation.
			5.	Electrical components UL/CUL listed.
		H.	Door-Activated Limit switch(s): Provide, field installed 250 Volts, 20 amps limit switch to control air curtain(s) as follows; Automatic on/off control, activates air curtain when door is opened and turns off when door is closed. Provide limit switch for direct control one 1 HP or up to two 1/2 HP single phase motors without a separate control panel. Provide a separate control panel for three phase motors controlled by a limit switch.
			1.	Type: Combination plunger/roller switch for swing and sliding doors.
	** NOTE TO SPECIFIER ** Delete three of the following four paragraphs to suit enclosures for incidental contact, protection against weather and corrosive exposure and explosion proof as required.
				a.	Provide limit switches with NEMA 1 (20 amps) ratings in locations indicated.
				b.	Provide limit switches with NEMA 4X (10 amps) ratings in locations indicated.
				c.	Provide limit switches with NEMA 4X (15 amps) ratings in locations indicated.
				d.	Provide limit switches with NEMA 7 (10 amps) ratings in locations indicated.
	** NOTE TO SPECIFIER ** Edit the following two paragraphs to suit the units specified. Delete the paragraph not applicable if it is not required.
			2.	Operation for Unheated Units: Automatic on/off control, on when door is opened, off when door is closed.
			3.	Operation for Heated Units: Automatic on when door is opened, off after time delay period after door is closed, maintaining heat in the event door is opened within delay time period. Field adjustable from 1 to 17 minutes.
		I.	Provide mounting hardware as required for the opening.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Verify that required utilities are in correct location and are of correct capacities for specified products.
		B.	Verify openings to receive air curtains are plumb, level, square, accurately aligned, correctly located, and in tolerance.
		C.	Examine surfaces to receive air curtains. If surface preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	INSTALLATION
	** NOTE TO SPECIFIER ** Indicate the mounting location(s) on the Drawing or on the Schedule at the end of this Section. Units are typically wall mounted horizontally above the door opening. Units can also be suspension mounted from the ceiling or vertically mounted along side the opening. Units are ETL Listed (US and Canada) for either an inside or outside mount. Heated units must be mounted on the inside or protected side of the opening. All NSF Certified Series should be mounted at the Flying Insect Control heights referenced under the Insect Control Air Curtain products specified above.
		A.	Install air curtains in accordance with approved shop drawings and manufacturer's printed installation instructions.
		B.	Install air curtains plumb, level, square, true to line, and weathertight, without warp or rack.
		C.	Anchor air curtains securely in place to supports.
		D.	Install sheet metal flashing as specified in Section 07620.
		E.	Install joint sealants as specified in Section 07920.
		F.	Install electrical power as specified in Section 16100.
		G.	Install door limit switches and adjust for correct operation.
		H.	Provide connection to piped services and utilities as specified in Sections of Divisions 15.
	3.3	FIELD QUALITY CONTROL
		A.	Adjust air curtains to function properly.
		B.	Adjust air foil vanes located within the discharge nozzle as required for prevailing conditions at each opening.
		C.	Check heated air curtain performance on a calm day by measuring air temperature 6 inches off the floor. Optimal reading is halfway between the temperature inside and outside the building.
	3.4	CLEANING
		A.	Clean air curtains promptly after installation in accordance with manufacturer's instructions.
		B.	Repair minor damages to finish in accordance with manufacturer's instructions and as approved by Architect.
		C.	Remove and replace damaged components that cannot be successfully repaired as determined by Architect.
	3.5	PROTECTION
		A.	Protect materials and finish from damage until substantial completion.
	** NOTE TO SPECIFIER ** For facilities with multiple types and sizes of air curtains use an Air Curtain Schedule to list requirements for each size, type, HP and power requirements of air curtain(s) required. Delete if not required.
	3.6	SCHEDULE
		A.	Refer to Air Curtain Schedule appended to this section.
	END OF SECTION