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SECTION 23 55 00FUEL-FIRED HEATERS

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Copyright 2014 - 2015 ARCAT, Inc. - All rights reserved

1 GENERAL

1.1 SECTION INCLUDES

1.1.1 Infrared tube heaters.

1.1.2 Adaptive modulating infrared tube heaters.

1.1.3 High efficiency two-stage infrared tube heaters with integrated energy recovery exchanger.

1.1.4 High intensity heaters.

1.1.5 Continuous radiant systems.

1.1.6 Process heat and drying equipment.

1.1.7 Radiant patio heaters.

1.1.8 Construction radiant heaters.

1.2 RELATED SECTIONS

1.2.1 Section 23 05 00 - Common Work Results for HVAC.

1.2.2 Section 26 05 00 - Common Work Results for Electrical.

1.3 REFERENCES

1.3.1 CSA - CSA Group. Canadian Standards Association (CSA).

1.4 SUBMITTALS

1.4.1 Submit under provisions of Section 01 30 00 - Administrative Requirements.

1.4.2 Product Data: Manufacturer's data sheets on each product to be used, including:1.4.2.1 Rated capacities, operating characteristics and accessories for each type of gas-

fired radiant heater.1.4.2.2 Preparation instructions and recommendations.1.4.2.3 Storage and handling requirements and recommendations.1.4.2.4 Installation methods.

1.4.3 Shop Drawings: Submit complete shop drawings indicating system components, control diagrams and load calculations.

1.4.4 Field quality-control test reports.

23 55 00-1

1.4.5 Installation, Operation and Maintenance Data: Provide copy of IO&M document.

1.4.6 Warranty: Provide copy of manufacturer's warranty statement.

1.5 QUALITY ASSURANCE

1.5.1 Assemblies: Assemblies shall be CSA approved.1.5.1.1 Low intensity heaters to ANSI Z83.20 (latest revision) and CSA 2.34 (latest

revision) for use in commercial and industrial applications.1.5.1.2 High intensity heaters to ANS1 Z83.19 (latest revision) and CSA 2.35 (latest

revision).

1.5.2 Approval shall include components of the complete heater, including burners, hangers, reflectors, reflector supports, thermostats and associated controls, and/or other accessories as noted in Contract Document plans and specifications.

1.5.3 Code Compliance: Installations of units shall comply with local building codes, or in their absence, the latest edition of the national regulations and procedures listed below:1.5.3.1 Electrical: Heaters shall be electrically grounded in accordance with the National

Electric Code, ANSI/NFPA 70 in the US, and the Canadian Electric Code, CSA C22.1 in Canada, and shall comply with all local requirements.

1.5.3.2 General Installation and Gas Codes: Heaters shall be installed only for use with the type of gas appearing on the rating plate, and the installation shall conform to the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) in the US and the Natural Gas and Propane Installation Code, CAN/CGA B 149.1 & B149.2 in Canada.

1.5.3.3 Aircraft Hangar Installation: Installation in aircraft hangars shall conform to the Standard for Aircraft Hangars, ANSI/NFPA 409 in the US and CAN/CGA B149.1 & B149.2 in Canada.

1.5.3.4 Public Garage Installation: Installation in public garages shall conform to the Standard for Parking Structures, NFPA-88A or Standard for Repair Garages, NFPA 88B, in the US and CAN/CGA B149.1 & B149.2 in Canada.

1.5.3.5 Parking Structures: Technical requirements are outlined in the Standard for Parking Structures, ANSI/NFPA 88a, in the US and CAN/CGA B149.1 & B149.2 in Canada.

1.5.3.6 Gas Supply Lines:1.5.3.6.1 Gas supply pipe sizing shall be in accordance with the National Fuel Gas

Code, ANSI Z223.1 (NFPA 54) in the US and the Natural Gas and Propane Installation Code, CAN/CGA B149.1 & B149.2 in Canada.

1.5.3.6.2 A 1/8 inch (3 mm) NPT plugged tap shall be installed in the gas line connection immediately upstream of the burner farthest from the gas supply meter to allow checking of system gas pressure.

1.5.3.7 Venting: Refer to the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) in the US and the Natural Gas and Propane Installation Code, CAN/CGA B149.1 and B149.2 in Canada for proper location, sizing and installation of vents as well as information on termination clearance requirements when penetrating combustible walls for venting purposes.

1.5.4 Manufacturer Qualifications: Successfully completed and passed the auditing requirements for ISO 9001 - Quality Management System (QMS).

1.5.5 Installer Qualifications: Authorized distributor of products and systems.

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Store products in manufacturer's unopened packaging until ready for installation.

1.7 PROJECT CONDITIONS

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1.7.1 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.

1.8 WARRANTY

1.8.1 Manufacturer's standard warranty agrees to provide parts to repair or replace components of gas-fired radiant heater that fails in materials or workmanship within specified warranty period.1.8.1.1 Warranty Period: 1-year for control panel.1.8.1.2 Warranty Period: 10 year for ceramic burner head.1.8.1.3 Warranty Period: 3 years for parts.

1.8.2 Manufacturer's standard warranty agrees to provide parts to repair or replace components of gas-fired radiant heater that fails in materials or workmanship within specified warranty period.1.8.2.1 Warranty Period: 3 year warranty on all components.1.8.2.2 Warranty Period: 10 year warranty on aluminized heat exchanger with post

purge feature.1.8.2.3 Warranty Period: 10 year warranty on energy recovery exchanger.

1.8.3 Manufacturer's standard warranty agrees to provide parts to repair or replace components of gas-fired radiant heater that fails in materials or workmanship within specified warranty period.1.8.3.1 The Manufacturer warrants to the original owner that the product will be free of

defects in material and workmanship. For the Series KMI, the warranty for all components except for the ceramic burner head assembly is limited to 24 months from the date of installation.

1.8.3.2 The ceramic burner head assembly shall be warranted for an additional 8 years for units which are proven to the satisfaction of the manufacturer to be inoperative due to defects in material or workmanship.

1.8.4 Manufacturer's standard warranty agrees to provide parts to repair or replace components of gas-fired radiant heater that fails in materials or workmanship within specified warranty period.1.8.4.1 Warranty Period: 3 year warranty on all components.1.8.4.2 Warranty Period: 10 year warranty on aluminized or stainless steel heat

exchanger with post purge feature.

1.8.5 Manufacturer's standard warranty agrees to provide parts to repair or replace components of gas-fired radiant heater that fails in materials or workmanship within specified warranty period.1.8.5.1 Warranty Period: 3 year warranty on all components.1.8.5.2 Warranty Period: 5 year warranty on hot rolled heat exchanger without post

purge feature.1.8.5.3 Warranty Period: 7year warranty on hot rolled heat exchanger with post purge

feature and aluminized or stainless steel heat exchanger without post purge feature.

1.8.5.4 Warranty Period: 10 year warranty on aluminized or stainless steel heat exchanger with post purge feature.

2 PRODUCTS

2.1 MANUFACTURERS

2.1.1 Acceptable Manufacturer: Superior Radiant Products Ltd., which is located at: 563 Barton St.; Stoney Creek, ON, Canada L8E 5S1; Toll Free Tel: 800-527-HEAT (4328); Tel: 905-

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664-8274; Fax: 905 664-8846; Email:request info ([email protected]); Web:www.superiorradiant.com

2.1.2 Substitutions: Not permitted.

2.1.3 Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.

2.2 INFRARED TUBE HEATERS

2.2.1 Design and Performance:2.2.1.1 Reflector Design: Reflector shall be 10-sided reflector design reflecting virtually

100% of the infrared energy out and away from the emitter tubes. Reflector shall be "Deep Dish: design with emitter tubes fully recessed within reflector.. Reflectors shall have a minimum 10 reflective surfaces. Reflectors with fewer surfaces allow energy to bounce back to the main heat exchanger tubing, and shall not be allowed. Reflector end caps shall be factory provided as standard and shall be fitted to the end of each reflector run to minimize convective heat loss. Reflectors shall provide a distribution pattern of 90 degrees inclusive beneath the heater. When called for in the Contract Documents and specifications, directing of radiant pattern outside the standard distribution patter shall be accomplished through use of side shields or bottom shields only. Tipped reflectors increase the convective loss of the heater and shall not be allowed, unless called for in the Contract documents.

2.2.1.2 Heat Uniformity: Burner shall distribute hot gases evenly along the length of the emitter tubes.

2.2.1.3 Serviceability: Burner shall be located outside of the air stream. Service and diagnostic control checks shall be possible with the blower fan running. Controls shall be proven name brand supported manufacturer.

2.2.1.4 Certified by Canadian Standards Association (CSA) for both US and Canadian applications.

2.2.1.5 Construction:2.2.1.5.1 Control Box: Heavy-duty powder coated galvanized steel.2.2.1.5.2 Emitter Tube: Hot rolled steel tube2.2.1.5.3 Emitter Tube: Heat-treated Type 1aluminized steel tube.2.2.1.5.4 Emitter Tube: Type 409 Stainless steel tube.2.2.1.5.5 Emitter Tube: High temperature epoxy coated steel tube.2.2.1.5.6 Reflector: Mill-finished aluminum, ASTM 1100, .024 thickness aluminum

sheet metal with two reflector support brackets for each 10 feet (3048 mm) reflector section.

2.2.1.5.7 Hangers: Heavy duty (minimum 0.3125 inch), chrome plated, wire-formed hangers shall be included as standard. Stainless steel hangers shall be an approved alternate.

2.2.1.6 Fuel: Natural gas (NG).2.2.1.7 Fuel: Liquid propane gas (LPG).

2.2.2 Residential Single Stage Infrared Tube Heaters:2.2.2.1 Product: Infrared Garage Heater - Model UAG as manufactured by Superior

Radiant Products.2.2.2.1.1 Size: Model UAG 40.

2.2.2.1.1.1 Rate: 40,000 BTU/H.2.2.2.1.1.2 Length: 10 feet (3048 mm).2.2.2.1.1.3 Length: 20 feet (6096 mm).

2.2.2.1.2 Size: Model UAG 60.2.2.2.1.2.1 Rate: 60,000 BTU/H2.2.2.1.2.2 Length: 15 feet (4572 mm).2.2.2.1.2.3 Length: 20 Feet (6096 mm).

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2.2.2.2 Product: Infrared Garage Heater - Model GR as manufactured by Superior Radiant Products.

2.2.2.2.1 Size: GR-30.2.2.2.2.1.1 Rate: BTU/HR 30,000.2.2.2.2.1.2 Dimensions: 17.5 inches x 8 inches x 118 inches (445 mm x 203

mm x 2997 mm).2.2.2.2.2 Size: GR-45

2.2.2.2.2.1 Rate: BTU/HR 45,000.2.2.2.2.2.2 Dimensions: 17.5 inches x 8 inches x 118 inches (445 mm x 203

mm x 2997 mm).2.2.2.2.3 Service:

2.2.2.2.3.1 Electrical Rating: 120 VAC 60 Hz 1A plug connector.2.2.2.2.3.2 Gas Connection: 1/2 inch (13 mm) NPT.2.2.2.2.3.3 Tube Diameter: Combustion air 4 inches (102 mm) Flue 2 inches

(51 mm) (Concentric).2.2.2.2.3.4 Minimum Gas Inlet: Nat gas 5.0 inches (127 mm) W.C. LPG 11.0

inches (279 mm) W.C.2.2.2.2.4 Construction:

2.2.2.2.4.1 Burner and heat treated aluminized steel heat exchanger.2.2.2.2.4.2 Ceiling suspension hardware.2.2.2.2.4.3 Gas flex connector included.2.2.2.2.4.4 Thermostat included.2.2.2.2.4.5 Provide 8 feet (2438 mm) venting kit.

2.2.3 Low Intensity Single Stage Infrared Tube Heaters:2.2.3.1 Product: Low Intensity Infrared Heater: Model UA as manufactured by Superior

Radiant Products.2.2.3.1.1 BTU/H: 40,000.2.2.3.1.2 BTU/H: 60,000.2.2.3.1.3 BTU/H: 80,000.2.2.3.1.4 BTU/H: 100,000.2.2.3.1.5 BTU/H: 125,000.2.2.3.1.6 BTU/H: 150,000.2.2.3.1.7 BTU/H: 175,000.2.2.3.1.8 BTU/H: 205,000.2.2.3.1.9 BTU/H: 220,000.2.2.3.1.10 Radiant Tube Length: 10 feet (3048 mm).2.2.3.1.11 Radiant Tube Length: 15 feet (4572 mm).2.2.3.1.12 Radiant Tube Length: 20 feet (6096 mm).2.2.3.1.13 Radiant Tube Length: 30 feet (9144 mm).2.2.3.1.14 Radiant Tube Length: 40 feet (12192 mm).2.2.3.1.15 Radiant Tube Length: 50 feet (15240 mm).2.2.3.1.16 Radiant Tube Length: 60 feet (18288 mm).2.2.3.1.17 Radiant Tube Length: 70 feet (21336 mm).2.2.3.1.18 Radiant Tube Lengths: Refer to drawing schedule.2.2.3.1.19 Recommended Range of Minimum Hanging Heights: 10 feet to 29 feet

(3048 to 8839 mm).2.2.3.2 Product: Low Intensity Infrared Heater: Model UX as manufactured by Superior

Radiant Products.2.2.3.2.1 BTU/H: 40,000.2.2.3.2.2 BTU/H: 60,000.2.2.3.2.3 BTU/H: 80,000.2.2.3.2.4 BTU/H: 100,000.2.2.3.2.5 BTU/H: 125,000.2.2.3.2.6 BTU/H: 150,000.2.2.3.2.7 BTU/H: 175,000.

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2.2.3.2.8 BTU/H: 205,000.2.2.3.2.9 BTU/H: 220,000.2.2.3.2.10 Radiant Tube Length: 10 feet (3048 mm).2.2.3.2.11 Radiant Tube Length: 15 feet (4572 mm).2.2.3.2.12 Radiant Tube Length: 20 feet (6096 mm).2.2.3.2.13 Radiant Tube Length: 30 feet (9144 mm).2.2.3.2.14 Radiant Tube Length: 40 feet (12192 mm).2.2.3.2.15 Radiant Tube Length: 50 feet (15240 mm).2.2.3.2.16 Radiant Tube Length: 60 feet (18288 mm).2.2.3.2.17 Radiant Tube Length: 70 feet (21336 mm).2.2.3.2.18 Radiant Tube Lengths: Refer to drawing schedule.2.2.3.2.19 Recommended Range of Minimum Hanging Heights: 10 feet to 29 feet

(3048 to 8839 mm).2.2.3.3 Product: Low Intensity Infrared Heater: Model UXR as manufactured by Superior

Radiant Products Ltd.2.2.3.3.1 BTU/H: 40,000.2.2.3.3.2 BTU/H: 60,000.2.2.3.3.3 BTU/H: 80,000.2.2.3.3.4 BTU/H: 100,000.2.2.3.3.5 BTU/H: 125,000.2.2.3.3.6 BTU/H: 150,000.2.2.3.3.7 BTU/H: 175,000.2.2.3.3.8 BTU/H: 205,000.2.2.3.3.9 BTU/H: 220,000.2.2.3.3.10 Radiant Tube Length: 10 feet (3048 mm).2.2.3.3.11 Radiant Tube Length: 15 feet (4572 mm).2.2.3.3.12 Radiant Tube Length: 20 feet (6096 mm).2.2.3.3.13 Radiant Tube Length: 30 feet (9144 mm).2.2.3.3.14 Radiant Tube Length: 40 feet (12192 mm).2.2.3.3.15 Radiant Tube Length: 50 feet (15240 mm).2.2.3.3.16 Radiant Tube Length: 60 feet (18288 mm).2.2.3.3.17 Radiant Tube Length: 70 feet (21336 mm).2.2.3.3.18 Radiant Tube Lengths: Refer to drawing schedule.2.2.3.3.19 Recommended Range of Minimum Hanging Heights: 10 feet to 29 feet

(3048 to 8839 mm).2.2.3.4 Product: Low Intensity Infrared Heater: Model UAB as manufactured by Superior

Radiant Products.2.2.3.4.1 BTU/H: 40,000.2.2.3.4.2 BTU/H: 60,000.2.2.3.4.3 BTU/H: 80,000.2.2.3.4.4 BTU/H: 100,000.2.2.3.4.5 BTU/H: 125,000.2.2.3.4.6 BTU/H: 150,000.2.2.3.4.7 BTU/H: 175,000.2.2.3.4.8 BTU/H: 205,000.2.2.3.4.9 Radiant Tube Length: 10 feet (3048 mm).2.2.3.4.10 Radiant Tube Length: 20 feet (6096 mm).2.2.3.4.11 Radiant Tube Length: 30 feet (9144 mm).2.2.3.4.12 Radiant Tube Length: 40 feet (12192 mm).2.2.3.4.13 Radiant Tube Length: 50 feet (15240 mm).2.2.3.4.14 Radiant Tube Length: 60 feet (18288 mm).2.2.3.4.15 Radiant Tube Length: 70 feet (21336 mm).2.2.3.4.16 Radiant Tube Lengths: Refer to drawing schedule.2.2.3.4.17 Recommended Range of Minimum Hanging Heights: 10 feet to 28 feet

(3048 to 8534 mm).

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2.2.4 Low Clearance Single Stage Infrared Tube Heaters:2.2.4.1 Product: Low Clearance Infrared Heater: Model LA as manufactured by Superior

Radiant Products.2.2.4.2 Product: Low Clearance Infrared Heater: Model LX as manufactured by Superior

Radiant Products.2.2.4.3 Product: Low Clearance Infrared Heater: Model LXR as manufactured by

Superior Radiant Products.2.2.4.4 Fuel: Natural Gas.2.2.4.5 Fuel: LPG.2.2.4.6 BTU/H: 40,000.2.2.4.7 BTU/H: 60,000.2.2.4.8 BTU/H: 80,000.2.2.4.9 BTU/H: 100,000.2.2.4.10 Radiant Tube Length: 30 feet (9144 mm).2.2.4.11 Radiant Tube Length: 40 feet (12192 mm).2.2.4.12 Radiant Tube Length: 50 feet (15240 mm).2.2.4.13 Radiant Tube Length: 60 feet (18288 mm).2.2.4.14 Radiant Tube Lengths: Refer to drawing schedule.2.2.4.15 Recommended Range of Minimum Hanging Heights: 8 feet to 16 feet (2438 to

4877 mm).2.2.4.16 Construction:

2.2.4.16.1 Heat treated aluminized tube supplied standard.2.2.4.16.2 Baffles per manufacturer's instructions.2.2.4.16.3 Post-purge function.2.2.4.16.4 10 year tube warranty.

2.2.5 Low Intensity Two Stage Infrared Tube Heaters:2.2.5.1 Product: Low Intensity Infrared Heater: Model TA as manufactured by Superior

Radiant Products.2.2.5.2 Product: Low Intensity Infrared Heater: Model TX as manufactured by Superior

Radiant Products.2.2.5.3 Product: Low Intensity Infrared Heater: Model TXR as manufactured by Superior

Radiant Products.2.2.5.4 Fuel: Natural Gas.2.2.5.5 Fuel: LPG.2.2.5.6 BTU/H Range: 40/30 thousand.2.2.5.7 BTU/H Range: 60/45 thousand.2.2.5.8 BTU/H Range: 80/60 thousand.2.2.5.9 BTU/H Range: 100/75 thousand.2.2.5.10 BTU/H Range: 125/95 thousand.2.2.5.11 BTU/H Range: 150/115 thousand.2.2.5.12 BTU/H Range: 175/130 thousand.2.2.5.13 BTU/H Range: 205/160 thousand.2.2.5.14 BTU/H Range: 220/165 thousand.2.2.5.15 BTU/H Range: Refer to drawing schedule.2.2.5.16 Radiant Tube Length: 10 feet (3048 mm).2.2.5.17 Radiant Tube Length: 15 feet (4572 mm).2.2.5.18 Radiant Tube Length: 20 feet (6096 mm).2.2.5.19 Radiant Tube Length: 30 feet (9144 mm).2.2.5.20 Radiant Tube Length: 40 feet (12192 mm).2.2.5.21 Radiant Tube Length: 50 feet (15240 mm).2.2.5.22 Radiant Tube Length: 60 feet (18288 mm).2.2.5.23 Radiant Tube Length: 70 feet (21336 mm).2.2.5.24 Radiant Tube Lengths: Refer to drawing schedule.2.2.5.25 Recommended Range of Minimum Hanging Heights: 10 feet to 29 feet (3048 to

8839 mm).

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2.2.5.26 Construction:2.2.5.26.1 Heat treated aluminized tube supplied standard.2.2.5.26.2 Baffles per manufacturer's instructions.2.2.5.26.3 Post-purge function.2.2.5.26.4 10 year tube warranty.

2.2.6 Low Clearance Low Intensity Two Stage Infrared Tube Heaters:2.2.6.1 Product: Low Clearance Infrared Heater: Model LTA as manufactured by

Superior Radiant Products.2.2.6.2 Product: Low Clearance Infrared Heater: Model LTX as manufactured by

Superior Radiant Products.2.2.6.3 Product: Low Clearance Infrared Heater: Model LTXR as manufactured by

Superior Radiant Products.2.2.6.4 Fuel: Natural Gas.2.2.6.5 Fuel: LPG.2.2.6.6 BTU/H Range: 40/30 thousand.2.2.6.7 BTU/H Range: 60/45 thousand.2.2.6.8 BTU/H Range: 80/60 thousand.2.2.6.9 BTU/H Range: 100/75 thousand.2.2.6.10 BTU/H Range: Refer to drawing schedule.2.2.6.11 Radiant Tube Length: 30 feet (9144 mm).2.2.6.12 Radiant Tube Length: 40 feet (12192 mm).2.2.6.13 Radiant Tube Length: 50 feet (15240 mm).2.2.6.14 Radiant Tube Length: 60 feet (18288 mm).2.2.6.15 Radiant Tube Lengths: Refer to drawing schedule.2.2.6.16 Recommended Range of Minimum Hanging Heights: 8 feet to 16 feet (2438 to

4877 mm).2.2.6.17 Construction:

2.2.6.17.1 Heat treated aluminized tube supplied standard.2.2.6.17.2 Baffles per manufacturer's instructions.2.2.6.17.3 Post-purge function.2.2.6.17.4 10 year tube warranty.

2.3 ADAPTIVE MODULATING INFRARED TUBE HEATER

2.3.1 Basis-of-Design: SRP Modulus AM Series adaptive modulation infrared tube heaters as manufactured by Superior Radiant Products,2.3.1.1 Firing rates shall be one of 80 MBH, 115 MBH, 150 MBH or 200 MBH operating

on natural or propane gas.

2.3.2 Adaptive Modulating Infrared Tube Heater:2.3.2.1 MODULUS Series Model AM as manufactured by Superior Radiant Products.2.3.2.2 Size: AM-80:

2.3.2.2.1 High Fire Rate (BTU/HR): 80,000.2.3.2.2.2 Low Fire Rate (BTU/HR): 48,000.2.3.2.2.3 Minimum Length: 20 feet (6096 mm).2.3.2.2.4 Maximum Length: 30 feet (9144 mm).

2.3.2.3 Size: AM-115:2.3.2.3.1 High Fire Rate (BTU/HR): 115,000.2.3.2.3.2 Low Fire Rate (BTU/HR): 69,000.2.3.2.3.3 Minimum Length: 30 feet (9144 mm).2.3.2.3.4 Maximum Length: 40 feet (12192 mm).

2.3.2.4 Size: AM-150:2.3.2.4.1 High Fire Rate (BTU/HR): 150,000.2.3.2.4.2 Low Fire Rate (BTU/HR): 90,000.2.3.2.4.3 Minimum Length: 40 feet (12192 mm).

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2.3.2.4.4 Maximum Length: 50 feet (15240 mm).2.3.2.5 Size: AM-200:

2.3.2.5.1 High Fire Rate (BTU/HR): 200,000.2.3.2.5.2 Low Fire Rate (BTU/HR): 115,000.2.3.2.5.3 Minimum Length: 50 feet (15240 mm).2.3.2.5.4 Maximum Length: 60 feet (18288 mm).

2.3.2.6 Service:2.3.2.6.1 Electrical Rating: 120 VAC 60 Hz 1A plug connector.2.3.2.6.2 Gas Connection: 1/2 inch (13 mm) NPT.2.3.2.6.3 Tube Diameter: Combustion air 4 inches (102 mm) Flue 4 inches (102

mm).2.3.2.6.4 Minimum Gas Inlet: Natural gas 5.3 inches (135 mm) W.C. LPG 11.8

inches (300 mm) W.C.

2.3.3 Performance and Design:2.3.3.1 The Heater Unit shall operate at a minimum inlet gas pressure of 5.3 inches

W.C. for Natural Gas and 11.8 inches W.C. for Propane and draw no more current than 1A @120VAC, 60Hz. Higher electrical draw rating, such as those needed for hot surface ignition shall not be allowed.

2.3.3.2 Burner housing shall include certain factory supplied features to insure easy commissioning, operation, and limited future maintenance as follows (as a minimum):

2.3.3.2.1 Adaptive modulation operation of both the gas and air within the burner housing to allow firing rates to be reduced up to 40% from rating plate maximum. Modulating heaters that operate on a fixed, preprogrammed relationship of air and gas through the firing range shall not be allowed, as they do not (cannot) compensate for changes in heater operating characteristics over an approved range of vent and outside air duct lengths.

2.3.3.2.2 Removal access doors (easy to service).2.3.3.2.3 Flame observation port2.3.3.2.4 Unit shall continue running during servicing.2.3.3.2.5 Direct spark ignition (DSI), minimum 3 try ignition including pre and post

purge sequencing, automatic 1 hour retry after lockout, and self-diagnostic module.

2.3.3.2.6 Operation indicator lights for heater power and operation.2.3.3.2.7 0 to 10 volt (DC) analog control signal.2.3.3.2.8 Isolated electrical components within the burner housing (electrical

components are not in air stream).2.3.3.2.9 Moisture sealed burner housing, and potted control module, approved for

outdoor use.2.3.3.3 Heater body shall include certain factory supplied features, noted below, to

insure easy installation, commissioning, operation and long life in accordance with the warranty provisions:

2.3.3.3.1 Deep dish reflector design redirecting 100% of generated infrared energy back into the space.

2.3.3.3.2 Chrome plated hangers that allow for tipping the reflector up to 45 degrees from horizontal centerline of the heat exchanger.

2.3.3.3.3 Chrome plated fastening means to secure burner and prevent rotation about the centerline axis of the heat exchanger over time.

2.3.3.3.4 Heat treated aluminized or high emissive stainless steel tubing.2.3.3.3.5 Heavy duty tubing couplings.2.3.3.3.6 Factory supplied side vent terminals if specified on the plans.

2.3.4 Construction and Assembly:2.3.4.1 Burner operation controls shall be factory assembled, piped, and wired, and

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complying with ANSI Z83.20/CSA 2.34. Controls shall vary both gas and air supply to the heater as directed by the on board modulation controller in response to sensor input from the space. Modulation range shall be from 60% to 100% of rated capacity.

2.3.4.2 Operating sequence on each heater energization shall include an initial controlled ignition period, followed by an initial high fire operation for up to 4 minutes, to bring the heat exchanger to maximum radiant output quickly, before responding to the proportional signal required by the sensor in the space.

2.3.4.3 Required infrared heater equipment components and operating characteristics:2.3.4.3.1 Ignition shall be direct spark (DSI) with gas ignition and flame proving

taking place within the main burner cup for reliability. Igniters that traverse the gas stream add turbulence to the burner flame and shall not be allowed.

2.3.4.3.2 DSI ignition control shall:2.3.4.3.2.1 Provide for 3 trials for ignition before lockout.2.3.4.3.2.2 Recycle again in one hour after lockout, with 3 subsequent trials

for ignition.2.3.4.3.2.3 Provided a lighted diagnostic display capability.2.3.4.3.2.4 Provide openly accessible sense current measurement contacts

within the housing.2.3.4.3.2.5 Provide a standard blower post purge function.2.3.4.3.2.6 Accept 24V thermostat wiring.2.3.4.3.2.7 Be sealed (potted) against moisture or other contaminants.

2.3.4.3.3 Modulation control function shall respond to operation changes within the heater, in addition to analog input signals from the room thermostat. Controllers that are pre-programmed and fixed do not respond to changes associated with heater length, or vent and outside air supply duct lengths and shall not be allowed.

2.3.4.3.4 For ease of maintenance, a single modulation control board shall be used across the total range of heat inputs, and shall incorporate a dip switch to allow matching control range to the input rate required.

2.3.4.3.5 Air blower motor shall be totally enclosed, requiring no oiling and shall be equipped with a thermal overload switch.

2.3.4.3.6 Gas and electric controls shall be separated from the combustion air stream.

2.3.4.3.7 Burner shall be equipped with clearly visible power ON and RUN lights.2.3.4.3.8 The burner shall be serviceable from either side while in operation.2.3.4.3.9 Gas valve shall be of the slow opening type.2.3.4.3.10 Air pressure proving and operational measurement switches shall be an

integral part of burner safety control system.2.3.4.3.11 Burner housing shall be constructed of minimum 18 ga corrosion resistant

steel and coated with cured powder epoxy paint.2.3.4.3.12 Outside air adapters and flue connectors shall be factory provided as

standard equipment.2.3.4.3.13 Burner box surface temperature shall not exceed 27 C (80 F) at any point

during operation.2.3.4.3.14 Burner shall be equipped with a flame sight port safely useable while the

unit is running during service.2.3.4.3.15 Couplings shall be of 16 ga aluminized steel, be twelve inches in length

with two draw bands of 16 ga aluminized steel.2.3.4.3.16 Tubing: Aluminized steel.2.3.4.3.17 Tubing: Stainless steel.2.3.4.3.18 Tubing: High temperature epoxy Silkote tubing; inside coated, outside

coated or both inside and outside coated.2.3.4.3.19 Controls shall provide an analog signal to the burner control board,

proportional to the heat demand in the space. Controls shall be capable of

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multiplexing 4 or more heaters to a single input sensor within the space.2.3.4.4 Combustion Tubing: 4 inches (102 mm) diameter tubing shall be required for all

firing rates. Hot rolled steel shall not be allowed. Combustion tubing shall incorporate a welded 4 bolt flange to orient the burner to the tube as designed.

2.3.4.5 Tubing Connections: Shall be aluminized or stainless steel couplings or joints with mill finished-steel draw bolts.

2.3.4.6 Reflector: Reflectors shall be Mill Finish aluminum, ASTM 1100, with 10 reflective surfaces and incorporate end caps. Reflector efficiency shall be higher than 99%. Reflector shape shall control radiation from tubing for uniform intensity at floor level with 100 percent cutoff above centerline of tubing.

2.3.4.6.1 Reflector Extension Shields: Same material as reflectors, arranged for fixed connection to lower reflector lip and rigid support to provide 100 percent cutoff of direct radiation from tubing at angles greater than 30 degrees from vertical.

2.3.4.6.2 Heavy duty minimum 0.3125 inch (8 mm), chrome plated, wire-formed hangers shall be included as standard. Stainless steel hangers shall be an approved alternate.

2.3.4.6.3 Reflector material shall be at least 0.024 inch (0.6 mm) thick (per applicable CSA standard, consistent with heater CSA certification). '

2.3.4.6.4 Reflector end caps shall be fitted to the end of each reflector run to reduce convective heat loss, and shall be standard equipment.

2.3.4.6.5 Reflectors shall extend below the bottom surface of the radiant tube.2.3.4.6.6 Directing of radiant pattern shall be accomplished through use of side

shields; bottom shields or 45 degree tilt of main reflector, as noted on the Contract Plans.

2.3.4.7 Burner Safety Controls:2.3.4.7.1 Gas Control Valve shall be a proportional, regulated, redundant 24VAC

electric gas valve, incorporating a pressure regulator and manual shutoff all in one body. Gas valve shall respond to changes in heater operation as directed by the on board modulation controller and shall adjust the gas supply as needed to maintain correct air/gas firing ratios within the heater.

2.3.4.7.2 Control Panel Interlock: Burner can be serviced while system is running with no requirements for interlock.

2.3.4.7.3 Integral dual air pressure switches shall provide for air proving and shall monitor adequate inlet air and vent flow.

2.3.4.7.4 Indicator Lights: Burner on and run indicator lights shall be standard equipment.

2.3.4.8 Burner and Emitter Type with the following features:2.3.4.8.1 Emitter Tube: Shall be 4 inches (102 mm) diameter, high-temperature heat

treated aluminized steel tubing, or optional high emissive stainless steel.2.3.4.8.2 Burner: Shall be a positive pressure burner system, where exhaust gases

and other products of combustion are not routed through the blower. The burner shall operate at a minimum gas inlet pressure of 5.3 inches W.C. (natural gas) or 11.8 inches W.C. (propane) and draw no more than 1 Amp at 120VAC, 60Hz.

2.3.4.8.3 Combustion-Air Connection: Duct connection to burner for combustion air shall be drawn directly from outside or inside shall be provided as factory standard.

2.3.4.8.4 Burner head shall be chrome plated steel.2.3.4.8.5 All burner operating components shall be enclosed in sealed burner

housing, approved for moisture-present conditions and outdoor installations by CSA.

2.3.4.8.6 Control: Modulating thermostat.2.3.4.8.7 Control: Building Management System capability.2.3.4.8.8 Control: Potentiometer.2.3.4.8.9 Control: Remote indoor sensor.

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2.3.4.8.10 Control: Multiple units on one control system.

2.4 HIGH EFFICIENCY TWO-STAGE INFRARED TUBE HEATERS WITH INTEGRATED ENERGY RECOVERY EXCHANGER.

2.4.1 Basis-of-Design Product: Subject to compliance with requirements, provide Superior Radiant Products Model SRP Stealth Low Intensity Infrared Heater.2.4.1.1 Certified by Canadian Standards Association (CSA) for Canadian applications.2.4.1.2 Input rate shall be as scheduled 135,000 BTU/Hr high fire to 85,000 BTU/Hr low

fire.2.4.1.3 Radiant Tube Length shall be 40 feet (12192 mm) total tube length, with U-tube

configuration.2.4.1.4 Recommended minimum hanging height shall be 18 feet (5486 mm). Refer to

Drawings for height required.2.4.1.5 All burner operating components shall be enclosed in burner housing.2.4.1.6 Heater shall be factory designed and approved to operate on Natural gas (NG).2.4.1.7 Burner Controls: Factory supplied two-stage thermostat.2.4.1.8 Burner Controls: As directed by Building Management System (BMS).2.4.1.9 Burner Controls: Multiple units shall be operated on a single thermostat control

with additional relay added to the burner box.

2.4.2 Design and Performance:2.4.2.1 Energy Recovery: Heater shall be equipped with an energy recovery exchanger.2.4.2.2 Reflector Design: Reflector shall be 10-sided reflector design reflecting virtually

100% of the infrared energy out and away from the emitter tubes. Reflector shall be "Deep Dish: design with emitter tubes fully recessed within reflector. Reflectors shall have a minimum 10 reflective surfaces. Reflectors with fewer surfaces allow energy to bounce back to the main heat exchanger tubing, and shall not be allowed. Reflector end caps shall be factory provided as standard and shall be fitted to the end of each reflector run to minimize convective heat loss. Reflectors shall provide a distribution pattern of 90 degrees inclusive beneath the heater.

2.4.2.3 Canopy: Heater shall have a canopy to improve thermal efficiency by reducing convective heat losses from the reflectors. Canopy shall have non-ventilated air clearance between the canopy and reflectors.

2.4.2.4 Hanging System: Heavy duty bracket system to allow on floor assembly of heaters.

2.4.2.5 Heat Uniformity: Burner shall distribute hot gases evenly along the length of the emitter tubes.

2.4.2.6 Serviceability: Burner controls shall be located outside of the air supply stream. Service and diagnostic control checks shall be possible with the blower fan running. Controls shall be proven, name brand supported manufacturer.

2.4.2.7 Construction:2.4.2.7.1 Control Box: Heavy-duty powder coated galvanized steel.2.4.2.7.2 Emitter Tube: Heat-treated Type 1 aluminized steel tube, 4 inch (102 mm)

diameter, and minimum 16 gauge thickness.2.4.2.7.3 Combustion Tube: 4 inches (102 mm) diameter, 16 gauge, heat treated

type 1 aluminized steel tubing shall be required for all firing rates. Hot rolled steel shall not be allowed. Combustion tubing shall incorporate a welded, 12 gauge steel, 4 bolt flange to orient the burner to the tube as designed.

2.4.2.7.4 Couplings: Shall be 16 gauge aluminized steel, minimum 12 inches (305 mm) in length and be of heavy duty design incorporating two 1 inch (25 mm) wide draw bands.

2.4.2.7.5 Reflector: Deep dish, 100% efficient, bright aluminum, ASTM 1100, .024 inch (0.6 mm) thickness aluminum sheet metal. Reflectors shall extend

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below the lowest position of the tubing at all times, and include standard end caps.

2.4.2.7.6 Reflector end caps: Shall be fitted to the end of each reflector run to reduce convective heat loss, and shall be standard equipment.

2.4.2.7.7 Hangers: Factory supplied heavy duty brackets minimum 10 ga. welded square tubing.

2.4.2.7.8 Burner: Shall be a positive pressure burner system, where exhaust gases and other products of combustion are not routed through the blower. The burner shall be supplied with pre-heated combustion air received from energy recovery exchanger. The burner shall operate at a minimum gas inlet pressure of 5.0 inches W.C. (natural gas).

2.4.2.7.9 Burner head shall be chrome plated steel.2.4.2.7.10 Burner operation controls: Shall be factory assembled, piped, and wired.

Gas and electric controls shall be separated from the combustion air stream.

2.4.2.7.11 Burner Safety Controls:2.4.2.7.11.1 Gas Control Valve shall be a 2 stage, proportional, regulated,

redundant 24VAC electric gas valve, incorporating a pressure regulator and manual shutoff all in one body.

2.4.2.7.11.2 Control Panel Interlock: Burner shall be serviceable while system is running with no requirements for safety interlock.

2.4.2.7.11.3 Integral air pressure switches shall provide for air proving and shall monitor adequate inlet air and vent flow.

2.4.2.7.11.4 Indicator Lights: Burner on and run indicator lights shall be standard equipment.

2.4.2.7.12 Burner ignition system: Shall be direct spark (DSI) with gas ignition and flame proving taking place within the main burner cup for reliability. Igniters that traverse the gas stream add turbulence to the burner flame and shall not be allowed. DSI ignition control shall:

2.4.2.7.12.1 Provide for 3 trials for ignition before lockout.2.4.2.7.12.2 Recycle again in one hour after lockout, with 3 subsequent trials

for ignition.2.4.2.7.12.3 Provided a lighted diagnostic display capability.2.4.2.7.12.4 Provide openly accessible sense current measurement contacts

within the housing.2.4.2.7.12.5 Provide a standard blower post purge function when called-for in

the Contract documents.2.4.2.7.12.6 Accept 24V thermostat wiring.

2.4.2.7.13 Burner Box: Air blower motor shall be totally enclosed, requiring no oiling and shall be equipped with a thermal overload switch. Motor should be equipped with a cooling fan.

2.4.2.7.14 Energy recovery exchanger air blower motor shall be totally enclosed, requiring no oiling and shall be equipped with a thermal overload switch.

2.4.2.7.15 Energy recovery exchanger: shall be equipped with temperature high limit switch. Temperature high limit switch shall be electrically connected in series with air pressure switch.

2.4.2.7.16 Combustion-Air Connection: Duct connection to burner for combustion air to be drawn directly from outside or inside shall be provided as factory standard.

2.5 HIGH INTENSITY HEATERS

2.5.1 Basis-of-Design Product: Subject to compliance with requirements, provide Superior Radiant Products Model KMI high intensity type gas-fired radiant infrared heaters.

2.5.2 Standard Efficiency: Model SD/SM as manufactured by Superior Radiant Products.

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2.5.2.1 Product: Model SD03N. Natural gas fueled 33,000 BTU/HR with 90 sq. inches of radiating surface.

2.5.2.2 Product: Model SD03P. LPG gas fueled 30,000 BTU/HR with 90 sq. inches of radiating surface.








2.5.2.10 Construction:2.5.2.10.1 Aluminized steel.2.5.2.10.2 Chain kits.2.5.2.10.3 Thermostats.2.5.2.10.4 Transformers.2.5.2.10.5 Gas flex connectors.2.5.2.10.6 Gas shut off valves.

2.5.2.11 Service:2.5.2.11.1 Electrical Rating: 24VAC.2.5.2.11.2 Gas Connection: 1/2 inch (13 mm) NPT.2.5.2.11.3 Minimum Gas Inlet: Nat gas 6.5 inches (165 mm) W.C. LPG 11.0 inches

(279 mm) W.C.

2.5.3 Mid Efficiency: Model M as manufactured by Superior Radiant Products.2.5.3.1 Product: Model M 20 Natural gas fueled 21,000 BTU/HR.2.5.3.2 Product: Model M 20 LPG gas fueled 23,000 BTU/HR.2.5.3.3 Product: Model M 40 Natural gas fueled 45,000 BTU/HR.2.5.3.4 Product: Model M 40 LPG gas fueled 44,000 BTU/HR.2.5.3.5 Product: Model M 60 Natural gas fueled 65,000 BTU/HR.2.5.3.6 Product: Model M 60 LPG gas fueled 66,000 BTU/HR.2.5.3.7 Product: Model M 90 Natural gas fueled 90,000 BTU/HR.2.5.3.8 Product: Model M 90 LPG gas fueled 90,000 BTU/HR.2.5.3.9 Product: Model M 120 Natural gas fueled 125,000 BTU/HR.2.5.3.10 Product: Model M 120 LPG gas fueled 125,000 BTU/HR.2.5.3.11 Service:

2.5.3.11.1 Electrical Rating: 24VAC.2.5.3.11.2 Gas Connection: 1/2 inch (13 mm) NPT.2.5.3.11.3 Minimum Gas Inlet: Natural gas 6.5 inches (165 mm) W.C. LPG 12.0

inches (305 mm) W.C.2.5.3.11.4 Manifold Pressure: Natural gas 5 inches (127 mm) W.C. LPG 11 inches

(279 mm) W.C.2.5.3.12 Construction: Stainless steel.

2.5.4 High Efficiency: Model KMI as manufactured by Superior Radiant Products Ltd.2.5.4.1 Product: Model KMI 20 Natural gas fueled 21,000 BTU/HR.2.5.4.2 Product: Model KMI 20 LPG gas fueled 23,000 BTU/HR.2.5.4.3 Product: Model KMI 40 Natural gas fueled 45,000 BTU/HR.2.5.4.4 Product: Model KMI40 LPG gas fueled 44,000 BTU/HR.

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2.5.4.5 Product: Model KMI 60 Natural gas fueled 65,000 BTU/HR.2.5.4.6 Product: Model KMI 60 LPG gas fueled 66,000 BTU/HR.2.5.4.7 Product: Model KMI 90 Natural gas fueled 90,000 BTU/HR.2.5.4.8 Product: Model KMI 90 LPG gas fueled 90,000 BTU/HR.2.5.4.9 Product: Model KMI 120 Natural gas fueled 125,000 BTU/HR.2.5.4.10 Product: Model KMI 120 LPG gas fueled 125,000 BTU/HR.2.5.4.11 Service:

2.5.4.11.1 Electrical Rating: 24VAC.2.5.4.11.2 Gas Connection: 1/2 inch (13 mm) NPT.2.5.4.11.3 Minimum Gas Inlet: Natural gas 6.5 inches (165 mm) W.C. LPG 12.0

inches (305 mm) W.C.2.5.4.11.4 Manifold Pressure: Natural gas 5 inches (127 mm) W.C. LPG 11 inches

(279 mm) W.C.2.5.4.12 Construction:

2.5.4.12.1 100% insulated reflectors prevents convective heat loss.2.5.4.12.2 ' High-grid' technology improves heat yield.2.5.4.12.3 Increased efficiency through maximum preheating of the mixture.2.5.4.12.4 Innovative injector burner works almost pollutant-free and guarantees

optimum combustion.2.5.4.12.5 Adjustable reflector panels direct the heat straight to the point required.2.5.4.12.6 Reduced maintenance costs with easy removal of combustion chamber.2.5.4.12.7 High output delivery from ceilings up to 200 feet (60960 mm) high.

2.5.5 General: High intensity radiant heater (Models M Series and KMI only).2.5.5.1 CSA approved.2.5.5.2 Complete with single body burner head, ignition control / valve & gas pressure

switch.2.5.5.3 Provide radiant factor of at least 77.3% as tested to EN 419-2 standard and

provide documentation upon request.2.5.5.4 Shall cover entire infrared spectrum - from short to long wavelengths.2.5.5.5 Clearance to combustibles shall comply with those in the I/O manual for the firing

rate specified.2.5.5.6 Approved flexible connectors shall be provided.2.5.5.7 The heater unit shall operate at a minimum gas inlet pressure of 6.5 inches W.C.

for NG and 12 inches for propane; maximum inlet pressure for both the fuel being 14 inches WC.

2.5.5.8 Unit shall draw no more than 0.6A, 120VAC, 60Hz.2.5.5.9 Unit shall be manufactured in accordance with ANSI Z83.19-2009/CSA 2.35-

2009.2.5.5.10 Unit shall be subjected to a function test before it leaves the factory and is preset

to the relevant gas type.

2.5.6 Performance:2.5.6.1 The heater shall perform a controlled and clean surface combustion2.5.6.2 The resulted quantity of noxious components CO and NOx shall be very low

(CO: 20 - 200 ppm; NOx: 4 - 10 ppm).

2.5.7 Heater Body:2.5.7.1 Heater body shall comprise of Burner-head (mixing chamber, ceramic emitter

tiles and steel mesh), insulated double wall parabolic outer body and reflector assemblies.

2.5.7.2 Burner head shall be stainless steel with single venturi and shall be placed in the insulated reflector housing in such a way that all the 3 sides are heated by warm air from products of combustion in turn the three sides shall pre-heat the air-fuel mixture to achieve higher efficiency.

2.5.7.3 Burner head shall be independently placed in the reflector assembly to minimize

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expansion stress and for ease of serviceability.2.5.7.4 Hood shall be hot-dip aluminized steel with high temperature resistant ceramic

fiber insulation and shall be fastened to the combustion chamber to expand without damaging the unit.

2.5.7.5 Reflectors shall be FERAN.2.5.7.6 Directing of radiant pattern shall be accomplished through use of adjustable

reflectors and rotating the heater around long axis.2.5.7.7 The rotation shall be in both the directions around horizontal mounting and shall

not have the limitation to rotate in only one direction.2.5.7.8 Chromium-Nickel Stainless steel mesh shall be in close proximity of emitter tiles

to maximize radiant performance.

2.5.8 Equipment Controls:2.5.8.1 Ignition shall be solid-state direct spark.2.5.8.2 Ignition control shall:

2.5.8.2.1 Make 3 ignition attempts before lockout.2.5.8.2.2 Recycle again in one hour with 3 ignition attempts.2.5.8.2.3 Ignition module will check for false flame condition, i.e. shorted sensor to

ground.2.5.8.3 Have openly accessible sense current contacts.2.5.8.4 Gas valve shall include a manual valve, two magnetic operators and a standard

gas pressure regulator.2.5.8.5 Gas valve shall have pressure taps to measure inlet and manifold pressures.2.5.8.6 Control shall incorporate a gas pressure switch capable of shutting off power to

the ignition module in case of inlet gas pressure drops below the minimum requirement.

2.6 CONTINUOUS RADIANT SYSTEMS

2.6.1 Basis-of-Design Product: Subject to compliance with requirements, provide Superior Radiant Products Model VS (VS-VH) vacuum type gas-fired radiant tubular infrared heaters.

2.6.2 Vacuum System: Model VS as manufactured by Superior Radiant Products.2.6.2.1 Input Rating BTUH: 120,000.

2.6.2.1.1 Radiant Tube Lengths2.6.2.1.1.1 Minimum feet (m) 30 (9.2).2.6.2.1.1.2 Normal feet (m) 40 (12.2).2.6.2.1.1.3 Maximum feet (m) 45 (13.7).

2.6.2.2 Input Rating BTUH: 130,000.2.6.2.2.1 Radiant Tube Lengths

2.6.2.2.1.1 Minimum feet (m) 35 (10.7).2.6.2.2.1.2 Normal feet (m) 40 (12.2).2.6.2.2.1.3 Maximum feet (m) 55 (16.8).






2.6.2.5.1.1 Minimum feet (m) 45 (13.7).

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2.6.2.5.1.2 Normal feet (m) 50 (15.3).2.6.2.5.1.3 Maximum feet (m) 65 (19.8).

2.6.2.6 Input Rating BTUH: 200,0002.6.2.6.1 Radiant Tube Lengths

2.6.2.6.1.1 Minimum feet (m) 50(15.3).2.6.2.6.1.2 Normal feet (m) 60 (18.3).2.6.2.6.1.3 Maximum feet (m) 70 (21.4).

2.6.2.7 Input Rating BTUH: 225,0002.6.2.7.1 Radiant Tube Lengths




2.6.2.9 Maximum Branch Rating BTUH:2.6.2.9.1.1 Single Burner: 250,0002.6.2.9.1.2 2 Burners: 365,0002.6.2.9.1.3 3 Burners: 435,000

2.6.3 Vacuum System: Model VS-VH as manufactured by Superior Radiant Products.2.6.3.1 Input Rating BTUH: 20,000.

2.6.3.1.1 Burners in Branch Max. 4.2.6.3.1.2 Radiant Tube Lengths


2.6.3.2 Input Rating BTUH: 40,000.2.6.3.2.1 Burners in Branch Max. 4.2.6.3.2.2 Radiant Tube Lengths








2.6.3.6 Input Rating BTUH: 110,000 and 120,000.2.6.3.6.1 Burners in Branch Max. 3.2.6.3.6.2 Radiant Tube Lengths

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2.6.4 Description: Factory assembled, piped, and wired, and complying with ANSI Z83.20/CSA 2.34.

2.6.5 Equipment Components:2.6.5.1 Burners shall be cast iron and have high flow capability.2.6.5.2 Ignition shall be direct spark.2.6.5.3 Ignition control shall:

2.6.5.3.1 Make 3 ignition attempts before lockout, with purge before each attempt.2.6.5.3.2 Recycle again in one hour with 3 ignition attempts.2.6.5.3.3 Have a lighted diagnostic capability.2.6.5.3.4 Have openly accessible sense current contacts within the housing.

2.6.5.4 Vacuum pump motor shall be TEFC.2.6.5.5 Radiant heat exchanger tubing shall be seamless welded 16ga thick either hot

rolled steel, heat-treated aluminized steel, stainless steel or high temperature epoxy coated (Silkote).

2.6.5.6 System shall incorporate a vacuum proving switch capable of shutting off gas flow in the event of flue blockage, or failure of vacuum pump.

2.6.6 Combustion Tubing: Combustion chamber tube shall be 4 inch (102 mm) diameter, welded 16 ga. thick heat-treated aluminized steel

2.6.7 Combustion Tubing: Combustion chamber tube shall be 4 inch (102 mm) diameter, welded 16 ga. thick high temperature epoxy (Silkote) coated heat-treated aluminized steel

2.6.8 Combustion Tubing: Combustion chamber tube shall be 4 inch (102 mm) diameter, welded 16 ga. thick stainless steel

2.6.9 Burners with firing rate at or above 150,000 BTUH shall have an additional 10 feet (3048 mm) length of combustion tubing installed downstream of the combustion tube.

2.6.10 Tubing Connections: Couplings shall be of Type 1 aluminized steel, be twelve inches in length with two draw bands of 1-1/4 inches (32 mm) wide, 14 gauge aluminized steel with high tensile bolt connectors.

2.6.11 Reflector: Reflectors shall be Mill Finish aluminum, ASTM 1100, with 10 reflective surfaces. Reflector fixture efficiency shall be higher than 99%. Mill finished aluminum, with end caps. Shape to control radiation from tubing for uniform intensity at floor level with 100 percent cutoff above centerline of tubing.2.6.11.1 Reflector Extension Shields: Same material as reflectors, arranged for fixed

connection to lower reflector lip and rigid support to provide 100 percent cutoff of direct radiation from tubing at angles greater than 30 degrees (0.52 radians) from vertical.

2.6.11.2 Include hanger kit.2.6.11.3 Reflector material shall be at least 0.024 inches (0,6 mm) thick (per CSA code). '2.6.11.4 Reflector end caps shall be fitted to the end of each reflector run to reduce

convected heat loss, and shall be standard equipment.2.6.11.5 Reflectors shall extend below the bottom surface of the radiant tube.2.6.11.6 Directing of radiant pattern shall be accomplished through use of side shields;

bottom shields or 45 degree tilt of main reflector as noted on the Contract plans.

2.6.12 Burner Safety Controls:2.6.12.1 Zero Pressure gas regulator: Burner shall operate only when negative pressure

is present in the combustion tubing, and the zero regulator shall maintain the

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correct air fuel ratio as required by the burner through its entire range of operation.

2.6.12.2 Gas Control Valve: Single-stage regulated redundant 24-V AC electric gas valve, pressure regulator and manual shutoff all in one body.

2.6.12.3 Control Panel Interlock: Burner capable of being serviced while system is running with no requirements for interlock.

2.6.12.4 Indicator Lights: Burner-on indicator light.

2.6.13 Vacuum Pumps:2.6.13.1 Vacuum pumps shall be cast aluminum construction connected to the system by

means of a high temperature flexible connector.2.6.13.2 Vacuum pump motor shall be TEFC sealed ball bearings.2.6.13.3 Vacuum pump shall be equipped with a steel fabricated wheel mounted by

means of a taper lock bushing.

2.6.14 Burner and Emitter Type: Vacuum-vented burner, with the following features:2.6.14.1 Combustion Emitter Tube: 4-inches (102 mm) diameter, heat treated Type 1

aluminized steel tubing with sight glass for burner flame observation and be continuous for at least 10 feet downstream of the burner.

2.6.14.2 Radiant Tube: 4 inches (102 mm) diameter, 16 ga. thickness hot rolled steel, heat treated aluminized steel or high temperature epoxy coated steel.

2.6.14.3 Burner/Ignition: Direct Electronic spark and electronic flame safety.2.6.14.3.1 Venting: Burner exhaust tubing connected at exit end to vacuum-fan inlet.2.6.14.3.2 Venting: Balancing damper at exit end of burner exhaust tubing and at

connection to manifold tube.2.6.14.4 The heater unit shall operate at a minimum gas inlet pressure of

2.6.14.4.1 Model VS: 5 inches W.C. for Natural Gas (11 inches W.C. for LPG).2.6.14.4.2 Model VS-VH: 5 inches W.C. Natural Gas.

2.6.14.5 System shall operate under negative pressure.2.6.14.6 Vacuum Fan: Dynamically balanced, direct-driven, steel impeller in a cast-

aluminum housing, isolated from system by flexible connector with a minimum temperature rating of 450 degree F (232 degree C).

2.6.14.6.1 Controllers, Electrical Motors, Devices, and Wiring: Electrical devices and connections are specified in Division 16.

2.6.14.6.2 Motor: Resilient-mounted, capacitor-start-capacitor-run (except 3-phase motors) type with sealed ball bearings; totally enclosed, nonventilated type with internal thermal protection.

2.6.14.6.3 Motor Sizes: Minimum size as indicated. If not indicated, large enough so driven load will not require motor to operate in service factor range above 1.0.

2.6.14.7 Balancing Dampers: Plate type, sheet metal dampers incorporated into a standard coupling.

2.6.14.8 Filter: Rectangular metal frame with dual elements. Filter shall be serviceable without disconnection of outside air supply ductwork

2.6.14.9 Combustion-Air Connection: Duct connection to burner for combustion air to be drawn directly from outside or inside.

2.6.14.10 VS Burner firing rate to be set by means of system vacuum with no orifice change or fuel/air adjustment.

2.6.14.11 VS-VH burner firing rate depends on orifice selected.2.6.14.12 Burners shall be specifically designed to operate in a specific branch position

and shall be numbered accordingly.2.6.14.13 Burner shall be capable of modulating from 60% to 100% of its rated input using

SRP supplied Accurate controls.2.6.14.14 Except for the first burner, subsequent burners in a leg shall have firing rates

within + 2% of each other.2.6.14.15 VS-VH Radiant output of the first burner shall be the same as subsequent

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burners in that branch.2.6.14.16 The burner shall be equipped with a clearly visible RUN light.2.6.14.17 Gas valve shall include safety shutoff, a manual valve, two magnetic operators

and a standard gas pressure regulator.2.6.14.18 Burner housing shall be constructed of 18ga corrosion resistant steel coated with

powder epoxy paint.2.6.14.19 Burner shall be equipped with a flame sight port safely useable when the unit is

running during service.2.6.14.20 Burner shall be equipped with a zero governor.2.6.14.21 The gas flow is precluded if:

2.6.14.21.1 Main valve fails.2.6.14.21.2 Vacuum pump motor fails to operate.2.6.14.21.3 Power fails.

2.6.14.22 Burner head shall be cast iron.2.6.14.23 Combustion air shall be filtered by means of an air filter provided in each burner.

Filter shall be replaceable without removing outside air connection if the latter is fitted.

2.6.14.24 All burner operating components shall be enclosed in housing.2.6.14.25 Outdoor-Air Connection: Dynamically balanced, direct-driven, forward-curved fan

with duct connection to each burner when required.2.6.14.25.1.1 Motor: Resilient-mounted, capacitor-start-capacitor-run type,

thermally protected with sealed ball bearings.2.6.14.25.1.2 Motor Sizes: Minimum size as indicated. If not indicated, large

enough so driven load will not require motor to operate in service factor range above 1.0.

2.6.14.25.1.3 Controllers, Motors, Electrical Devices, and Wiring: Electrical devices and connections are specified in Division 16.

2.6.15 Controls:2.6.15.1 A control panel incorporating pre-purge and post purge functions shall be

provided with provision for up to 4 zone(s) of burners controlled by low voltage thermostats.

2.6.15.2 Night set-back operation shall be provided.2.6.15.3 Control panel shall be CSA certified as part of the Premier System.2.6.15.4 The Vacuum System shall be capable of interfacing with SRP AccuRate

Modulating Controls having the following features:2.6.15.4.1 General:

2.6.15.4.1.1 The 4 zones may or may not be ON at the same time.2.6.15.4.1.2 The controls shall modulate up to 2 zones independently with

motorized dampers.2.6.15.4.1.3 The 2 zones are capable of modulating independently at the same

time depending on heat demand from the respective zone sensor.2.6.15.4.1.4 The modulation range shall be from 60% to 100% of rated input.2.6.15.4.1.5 System shall also be capable of modulating the entire system as a

single zone if desired.2.6.15.4.1.6 Shall have factory configured software.2.6.15.4.1.7 Shall have switching relays for zone-power and pump/fresh air

motors.2.6.15.4.1.8 Shall have option of VFD to set initial vacuum.

2.6.15.4.2 On-board indicators on control panel when used shall show the following status:

2.6.15.4.2.1 Pump power ON / OFF indication.2.6.15.4.2.2 Zone power indication.

2.6.15.4.3 Communication to the system controls shall be established on:2.6.15.4.3.1 BACnet protocol.

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2.7 PROCESS HEAT AND DRYING EQUIPMENT

2.7.1 Long Wave Catalytic Emitter as manufactured by Superior Radiant Products.2.7.1.1 Wavelength: 3.3-5µm.2.7.1.2 Maximum Burner Temperature: 600 degree C (1112 degree F).2.7.1.3 Maximum Thermal Burner Surface Effect: 30 kW/m2 (9500 BTU/ft2).2.7.1.4 Size: 600 x 600 mm (23.6 x 23.5 inches).2.7.1.5 Size: 450 x 1200 mm (17.7 x 47.2 inches).2.7.1.6 Size: 450 x 1500 mm (17.7 x 59.0 inches).2.7.1.7 Size: Refer to drawing Schedule.

2.7.2 Medium Wave Ceramic Burner as manufactured by Superior Radiant Products.2.7.2.1 Wavelength: 2.4µm.2.7.2.2 Maximum Burner Temperature: 950 degree C (1742 degree F).2.7.2.3 Maximum Thermal Burner Surface Effect: 120 kW/m2 (38,000 BTU/ft2).2.7.2.4 Size: 140 x 375 mm (5.5 x 14.75 inches).2.7.2.5 Size: 100 x 270 mm (4.0 x 10.6 inches).2.7.2.6 Size: 100 x 400 mm (4.0 x 15.75 inches).2.7.2.7 Size: 100 x 535 mm (4.0 x 21.0 inches).2.7.2.8 Size: 100 x 800 mm (4.0 x 31.5 inches).

2.7.3 Medium Wave Metal Fiber Burner - Knitted Surface as manufactured by Superior Radiant Products.2.7.3.1 Wavelength: 2.2µm.2.7.3.2 Maximum Burner Temperature: 1050 degree C (1922 degree F).2.7.3.3 Maximum Thermal Burner Surface Effect: 200 kW/m2 (63,400 BTU/ft2).2.7.3.4 Size: 140 x 375 mm (5.5 x 14.75 inches).2.7.3.5 Size: 100 x 270 mm (4.0 x 10.6 inches).2.7.3.6 Size: 100 x 400 mm (4.0 x 15.75 inches).2.7.3.7 Size: 100 x 535 mm (4.0 x 21.0 inches).2.7.3.8 Size: 100 x 800 mm (4.0 x 31.5 inches).2.7.3.9 Size: 300 x 400 mm (11.8 x 15.75 inches).2.7.3.10 Size: Refer to drawing Schedule.

2.7.4 Medium Wave Metal Fiber Burner - Sintered Surface as manufactured by Superior Radiant Products.2.7.4.1 Wavelength: 2.2µm.2.7.4.2 Maximum Burner Temperature: 1050 degree C (1922 degree F).2.7.4.3 Maximum Thermal Burner Surface Effect: 250 kW/m2 (79,200 BTU/ft2).2.7.4.4 Size: 150 x 200 mm (5.9 x 7.9 inches).

2.7.5 Short Wave Porous Burner RADIMAX as manufactured by Superior Radiant Products.2.7.5.1 Wavelength: 1.7µm.2.7.5.2 Maximum Burner Temperature: 1450 degree C (2642 degree F).2.7.5.3 Maximum Thermal Burner Surface Effect: 1,000 kW/m2 (317,000 BTU/ft2).2.7.5.4 Size: 150 x 200 mm (5.9 x 7.9 inches).

2.8 RADIANT PATIO HEATERS

2.8.1 Basis-of-Design: SRP Radiant Patio Heater as manufactured by Superior Radiant Products.2.8.1.1 Floor Mounted Vertical Pole: Model GA301.

2.8.1.1.1 Natural Gas: Manifold pressure - 6.5 inches WC to 14 inches WC maximum. 53,000 BTUH high fire and 46,000 BTUH low fire.

2.8.1.1.2 LP Gas: Manifold pressure - 10.8 inches WC to 14 inches WC maximum. 47,000 BTUH high fire and 40,000 BTUH low fire.

2.8.1.2 Overhead Suspension: Model GA301H (Hanging).2.8.1.2.1 Natural Gas: Manifold pressure - 6.5 inches WC to 16 inches WC

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maximum. 53,000 BTUH high fire and 46,000 BTUH low fire.2.8.1.2.2 LP Gas: Manifold pressure - 10.8 inches WC to 14 inches WC maximum.

47,000 BTUH high fire and 40,000 BTUH low fire.2.8.1.3 Control: Two-Stage Switch, Direct Spark. 24 VAC 0.8 amps required. Remote

ignition switch.2.8.1.4 Design:

2.8.1.4.1 Commercial grade construction engineered for extended rugged use.2.8.1.4.2 Emitter warranty 5 years, controls and components 3 years.2.8.1.4.3 Heats larger area than conventional umbrella style heaters (up to 58%

greater than comparative model). Data Source: FSTC Report #5011.07.05.2.8.1.4.4 Two-Stage Switch (optional zoning) - Part# EE020.2.8.1.4.5 Keeps more patrons comfortable per heater.2.8.1.4.6 Exotic open flame "luau" torch design provides unique ambiance.2.8.1.4.7 Engineered "double surface" reflector provides unmatched comfort circle.

2.8.1.5 Finish and Color:2.8.1.5.1 Stainless 304 Steel.2.8.1.5.2 Black.2.8.1.5.3 Yellow Green.2.8.1.5.4 Yellow Orange.2.8.1.5.5 Grass Green.2.8.1.5.6 Pure Orange.2.8.1.5.7 Sky Blue.2.8.1.5.8 Zinc Yellow.2.8.1.5.9 Copper Brown.2.8.1.5.10 Tele Magenta.2.8.1.5.11 Light Pink.2.8.1.5.12 Roseda Green.2.8.1.5.13 Night Blue.2.8.1.5.14 Water Blue.2.8.1.5.15 Pastel Yellow.2.8.1.5.16 Khaki Grey.2.8.1.5.17 Traffic Red.2.8.1.5.18 Red Lilac.

2.8.2 Basis-of-Design: SRP Overhead Ceramic Patio Heater as manufactured by Superior Radiant Products.2.8.2.1 Size: "The Habanero" Model HAB-M20. 20,000 BTUH high fire and 15,000

BTUH low fire.2.8.2.2 Size: "The Habanero" Model HAB-M40. 40,000 BTUH high fire and 32,000

BTUH low fire.2.8.2.3 Size: "The Habanero" Model HAB-M50. 50,000 BTUH high fire and 42,000

BTUH low fire.2.8.2.4 Finish: Black.2.8.2.5 Finish: Stainless Steel.2.8.2.6 Finish: Light Bronze.2.8.2.7 Finish: Dark Bronze.2.8.2.8 Mounting: Wall mount.2.8.2.9 Mounting: Ceiling mount.2.8.2.10 Mounting: Chain/Hanging mount.2.8.2.11 Control: Hi/Lo/Off Heat Output Control.2.8.2.12 Design:

2.8.2.12.1 Pre-Mixed Combustion Chamber: Providing optimum combustion.2.8.2.12.2 Triple-Surface Burner Technology.2.8.2.12.3 Ceramic Tile: Large tile surface creates a much stronger and consistent

heat pattern.2.8.2.12.4 Radiation Grid: ' High-Grid' technology substantially decreases heat loss.

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2.8.2.12.5 Wind Guard: Provided to protect against flame lift-offs from extreme wind conditions.

2.8.2.12.6 Polished Heat Reflector.

2.8.3 Basis-of-Design: SRP EvenTUBE Radiant Patio Heater as manufactured by Superior Radiant Products.2.8.3.1 Series: Two Stage, Dual Comfort Series.

2.8.3.1.1 Size: ET04 - 30,0000BTUH to 40,000 BTUH.2.8.3.1.2 Size: ET06 - 45,0000BTUH to 60,000 BTUH.2.8.3.1.3 Size: ET08 - 60,0000BTUH to 80,000 BTUH.2.8.3.1.4 Size: ET10 - 75,0000BTUH to 100,000 BTUH.2.8.3.1.5 Fuel: Natural gas. Manifold Pressure - 3.5 inches W.C. (Hi), 2.4 inches

W.C. (Lo). Inlet Pressure - 5.0 inches W.C. (Min), 14.0 inches W.C. (Max).2.8.3.1.6 Fuel: LP gas. Manifold Pressure - 10.5 inches W.C. (Hi), 6.2 inches W.C.

(Lo). Inlet Pressure - 11.5 inches W.C. (Min), 14.0 inches W.C. (Max).2.8.3.1.7 Reflector Configuration: Standard.2.8.3.1.8 Reflector Configuration: 45 degree tilt.2.8.3.1.9 Reflector Configuration: One side extension.2.8.3.1.10 Control: Two stage switch (Part #EE020).

2.8.3.2 Series: Two Stage, High Output Series.2.8.3.2.1 Size: ETO100 - 75,0000BTUH to 100,000 BTUH.2.8.3.2.2 Fuel: Natural gas. Manifold Pressure - 3.3 inches W.C. (Hi), 2.0 inches

W.C. (Lo). Inlet Pressure - 5.0 inches W.C. (Min), 14.0 inches W.C. (Max).2.8.3.2.3 Fuel: LP gas. Manifold Pressure - 10.2 inches W.C. (Hi), 6.4 inches W.C.

(Lo). Inlet Pressure - 11.5 inches W.C. (Min), 14.0 inches W.C. (Max).2.8.3.2.4 Reflector Configuration: Standard.2.8.3.2.5 Reflector Configuration: 45 degree tilt.2.8.3.2.6 Control: Two stage switch (Part #EE020).

2.8.3.3 Series: Compact, Even Comfort Series.2.8.3.3.1 Size: EGR30 - 30,000 BTUH.2.8.3.3.2 Size: EGR45 - 45,000 BTUH.2.8.3.3.3 Fuel: Natural gas. Manifold Pressure - 3.5 inches W.C. Inlet Pressure - 5.0

inches W.C. (Min), 14.0 inches W.C. (Max).2.8.3.3.4 Fuel: LP gas. Manifold Pressure - 10.5 inches W.C. Inlet Pressure - 11.0

inches W.C. (Min), 14.0 inches W.C. (Max).2.8.3.3.5 Reflector Configuration: Standard.2.8.3.3.6 Reflector Configuration: 45 degree tilt.2.8.3.3.7 Control: Two stage switch (Part #EE020).

2.8.3.4 Power: 120 VAC, 60 HZ, 1 amp, grounded power cord.2.8.3.5 Finish: Powder coated black.2.8.3.6 Finish: Stainless steel.

2.9 CONSTRUCTION RADIANT HEATERS

2.9.1 Basis-of-Design: SRP Modulating Construction Heater - Series KA as manufactured by Superior Radiant Products.2.9.1.1 Approved to ANSI Z83.7/CSA 2.14-2000.2.9.1.2 Natural Gas: Model KA10N. Manifold pressure - 5 inches WC. 1/2 inch (13 mm)

male quick connect.2.9.1.3 LP Gas: Model KA10P. Manifold pressure - 10 inches WC. 3/8 inch (9.5 mm)

male quick connect.

2.9.2 Design:2.9.2.1 360 degree focused heat band.2.9.2.2 Internal reflectors to control heat pattern.2.9.2.3 Modulating burner control (60,000 to 100,000 BTUH).

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2.9.2.4 Built in thermostat.2.9.2.5 Built in piezo ignition.2.9.2.6 Heavy duty construction.2.9.2.7 Tip-over safety switch.2.9.2.8 Built in hanging points for overhead installation.2.9.2.9 No electricity needed for operation.

3 EXECUTION

3.1 EXAMINATION

3.1.1 Do not begin installation until services and supports have been properly prepared.

3.1.2 If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.2 INSTALLATION

3.2.1 Installation shall comply with manufacturer supplied Instruction manual, approved drawings and applicable local codes and/or gas utility requirements. In the absence of any of the former, reference should be made to CAN 1-B149.1 and B149.2 Installation Codes and/or National Fuel Gas Code ANSI Z223.1 (NFPA54). Comply with manufacturer's recommendations including the following:3.2.1.1 Clearance to combustibles shall comply with those in the I/O manual for the firing

rate specified.3.2.1.2 Provide approved flexible connectors.3.2.1.3 Wire heaters in accordance with the National Electrical Code ANSI/NFPA 70 and

local ordinances and/or Canadian Electrical Code.3.2.1.4 Suspend heater units in accordance with manufacturer's instruction with chain

and turnbuckles exceeding 540 lb (245 kg) pull test. 4 inch (102 mm) turnbuckles and 2/0 chain.

3.2.1.5 Install and connect gas-fired radiant heaters and associated fuel and vent features and systems according to either NFPA 54 or CAN/CSA B149.1 as applicable for local codes and regulations. Sidewall vents shall be as approved with the appliance by the manufacturer.

3.2.1.6 Install products in accordance to manufacturer's written installation instructions.3.2.1.7 Venting:

3.2.1.7.1 General Requirements:3.2.1.7.1.1 Refer to the CSA B149.1 Installation Code in Canada, as well as

all local requirements for general venting guidance.3.2.1.7.1.2 Heaters shall be installed vented or unvented as scheduled or

indicated.3.2.1.7.1.3 Heaters shall be vented horizontally or vertically as scheduled or

indicated.3.2.1.7.1.4 Outside air supply shall be directed to the heateras scheduled or

indicated.3.2.1.7.2 Polypropylene Vent System:

3.2.1.7.2.1 The heater has been approved for a venting system, which uses single wall, rigid, Polypropylene pipe system approved for sustained flue gases up to 230 degrees F (110 degree C).

3.2.1.7.2.2 Installations shall comply with applicable national, state, and local codes. For Canadian installation, Polypropylene vent must be listed as a ULC-S636 approved system.

3.2.1.7.3 Condensation Management:3.2.1.7.3.1 Heater develops some condensation in the vent piping.3.2.1.7.3.2 Condensate shall be treated and disposed of according to local

codes.

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3.3 FIELD QUALITY CONTROL

3.3.1 Manufacturer's Field Service: Manufacturer's Field Service: Engage a factory-authorized service representative to inspect, test and adjust components, assemblies, and equipment installations, including connections, and to assist in testing. Testing shall include the following:3.3.1.1 Test and adjust controls and safeties. Replace damaged and malfunctioning

controls and equipment.3.3.1.2 Verify proper motor rotation.3.3.1.3 Test Reports: Prepare a written report to record the following:

3.3.1.3.1 Test procedures used.3.3.1.3.2 Test results that comply with requirements.3.3.1.3.3 Test results that do not comply with requirements and corrective action

taken to achieve compliance with requirements.

3.3.2 Remove and replace malfunctioning units and retest until satisfactory results are obtained.

3.4 DEMONSTRATION

3.4.1 Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain gas-fired radiant heaters.

3.5 PROTECTION

3.5.1 Protect installed products until completion of project.

3.5.2 Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION

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