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SECTION 23 51 00
GENERATOR / TURBINE EXHAUST SYSTEM
 
 
Copyright 2014 - 2014 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Selkirk, Inc.; chimney, venting and air distribution products.
This section is based on the products of Selkirk, Inc., which is located at:
5030 Corporate Exchange Blvd. S.E.
Grand Rapids, MI 49512
Toll Free Tel: 800-848-2149
Tel: 616-656-8200
Email: request info (info@selkirkcorp.com)
Web: www.selkirkcommercial.com
[ Click Here ] for additional information.
Selkirk Corporation is a leading manufacturer of chimney, venting and air distribution products for the commercial and residential HVAC and hearth industries. Selkirk manufactures products in the United States, Canada and Mexico.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
A.
Auxiliary power engine/generator exhaust system; diesel or natural gas fired.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 07 50 00 - Membrane Roofing.
B.
Section 23 05 00 - Common Work Results for HVAC.
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.
National Fire Protection Association (NFPA)-37 - Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines.
B.
National Fire Protection Association (NFPA)-211 - Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances.
C.
Underwriter's Laboratory (U.L). 103 - Factory-Built Chimneys for Residential Type and Building Heating Appliances. Positive Pressure Section.
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.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Shop Drawings: The manufacturer shall provide "to scale" drawings depicting the actual layout.
 
** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
 
D.
Certification: The inner diameter of the exhaust system shall be verified by the manufacturer's computations. Provide certified computations verifying compatibility of exhaust system with Contract engine and muffler system.
1.
The computations used shall be technically sound, follow ASHRAE calculation methods and shall incorporate the specific flow characteristics of the inner pipe.
2.
The Contractor shall furnish the exact operating characteristics of the engine(s) and muffler(s) to the factory representative.
1.5
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Minimum 5 year experience manufacturing similar products. The factory built modular exhaust system shall be furnished by a vendor organization that assures design, installation and services coordination. As well as, providing "in-warranty" and "post-warranty" unified responsibility for Owner, Architect, consulting engineer and Contractor.
B.
Installer Qualifications: Minimum 1 year experience installing similar products.
1.6
PRE-INSTALLATION MEETINGS
A.
Convene minimum two weeks prior to starting work of this section.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.
Handling: Handle materials to avoid damage.
1.8
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.9
SEQUENCING
A.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
1.10
WARRANTY
A.
The exhaust system shall be warranted against functional failure due to defects in material and manufacturer's workmanship for a period of 15 years from date of installation.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Selkirk, Inc., which is located at: 5030 Corporate Exchange Blvd. S.E. ; Grand Rapids, MI 49512; Toll Free Tel: 800-848-2149; Tel: 616-656-8200; Email: request info (info@selkirkcorp.com); Web: www.selkirkcommercial.com
B.
Web: http://www.selkirkcommercial.com.
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
C.
Substitutions: Not permitted.
D.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
1.
Submittals shall specify manufacturer's model number, and other pertinent identification, and attest that the material is in compliance with all specification requirements as approved equivalent by the Project engineer.
2.2
DIESEL ENGINE/GENERATOR EXHAUST
A.
Diesel Engine/Generator/Turbine Exhaust System: Using Selkirk Commercial/Industrial Model IPS exhaust flue.
1.
Provide factory built exhaust system that is tested and listed by the Underwriters' Laboratories, Inc. for use with medium heat equipment burning gas, liquid or solid fuels, as described in NFPA-37 and NFPA-211, which produce exhaust flue gas temperatures not exceeding 1400 degree F (760 degree C) under continuous operating conditions. Additionally, the vent system shall be UL 103 positive pressure tested and listed to 60 inches internal water column pressure.
2.
The UL listed fiber insulated exhaust system shall have skin temperatures that have been obtained by Underwriters Laboratories (UL) test procedures. The published surface temperatures shall be the result of the UL103 1000 degree Fahrenheit chimney test.
B.
Construction:
1.
The double wall exhaust system shall have a 304 stainless steel inner liner (20 gauge minimum) and an aluminized steel outer jacket (24 gauge minimum). The materials and construction of the modular sections and accessories shall be as specified by the terms of the product's U.L. listing.
a.
Ceramic fiber insulation between the inner liner and outer jacket shall be a nominal two inches (51 mm) thick.
2.
Aluminized steel surfaces exposed to the elements shall be protected by a minimum of one base coat of primer and one finish coat of corrosion resistant paint suitable for outer jacket skin temperatures of the given application. All primer and paint to be supplied by the installing contractor and shall be equivalent to series V2100 high heat, as manufactured by Rust-Oleum. Alternatively, an outer jacket constructed of 304 or 316 stainless steel may also be considered in lieu of painting.
3.
This exhaust system shall be designed and installed to be gas tight to prevent leakage of combustion products into a building.
4.
Inner pipe joints shall be securely connected and sealed with factory supplied over-lapping V-bands and P2000 sealant as specified in the manufacturer's installation instructions.
5.
Connections to silencers and expansion joints shall be made with matching flanges. Matching flanges shall be of the same size, bolt hole spacing and pressure rating as the flanges to which the connections are made.
6.
Roof penetrations shall be suitable for the specified roof construction and shall comply with the manufacturer's installation instructions.
7.
The exhaust system shall be designed to compensate for all flue gas induced thermal expansion, by means of Selkirk designer placed bellows joints.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3
INSTALLATION
A.
The exhaust system shall be installed as designed by the manufacturer and in accordance with the terms of the manufacturer's warranty and in conjunction with sound engineering practices.
B.
Inner pipe joints shall be sealed by use of factory supplied overlapping V bands and sealant as specified in the manufacturer's installation instructions.
C.
Roof penetrations shall be suitable for a noncombustible roof and shall be according to the manufacturer's detail drawings and installation instructions.
D.
When installed according to the manufacturer's installation instructions, the exhaust piping and its supporting system shall resist side loads at least 1.5 times greater than the weight per foot of the piping for both horizontal and vertical portions of the system.
E.
The exhaust system shall be installed according to the manufacturer's installation instructions and shall conform to all applicable state and local codes.
F.
Provide all supports, guides, bellows type expansion joints, pressure relief valves, guy sections, guy tensioners, roof thimbles, roof flashings, storm collars and flip top terminations as required to provide a complete system.
G.
The entire exhaust system from the muffler discharge to the termination point, including all accessories, except as noted, shall be from one manufacturer.
3.4
PROTECTION
A.
Protect installed products until completion of project.
B.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION