Engineering Specs

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HVAC Guideline Specifications

HE+ Series (Single-stage, Two-stage & Modulating)

Positive Pressure Radiant Tube Type Gas-Fired Infrared Heater

Commercial/Industrial Applications

Part 1 — General

1.01 SYSTEM DESCRIPTION

Indoor overhead mounted, electrically controlled positive pressure radiant tube type infrared heating

unit utilizing gas combustion for heating of spaces or areas.

1.02 QUALITY ASSURANCE

A. Heater will be tested in accordance with ANSI Z83.20-2016 / CSA 2.34-2016 Standards, and

certified by UL Laboratories of Canada

B. Each heater burner will be subjected to run testing on the assembly line.

C. The heater will be warranted by the manufacturer for defects in material and workmanship for a

period of three (3) years on the burner assembly and three (3) years on all other heater parts and

components.

1.03 DELIVERY, STORAGE, AND HANDLING

Heater will be stored to secure against damage and handled per manufacturer’s recommendations.

Part 2 — Product

2.01 EQUIPMENT (STANDARD)

A. General:

Site assembled, modular infrared radiant heating unit for overhead mounted space or area heating

application. Supplied with the heater as required for field installation and start-up will be a burner

with all necessary factory installed wiring, piping, and controls and a radiant tube/reflector system,

complete with wire hangers, end-plate hanger and end plate, corresponding in length to the burner

input.

The radiant tube type infrared heating unit(s) will be manufactured by Rinnai.

Heater size(s) and capacity(s) are as noted on drawing and/or schedule

B. Emitting Tube System:

1. General:

a. All tubes will be 4 inch (100 mm) diameter with an emitting surface area of 152 in

(982

) per linear foot (305 mm)

b. For inputs up to and including 205,000 Btuh (60.1kWh) the 10 foot (3050 mm)

combustion tube adjoining to the burner will be constructed of 16 gauge aluminized steel

c. For inputs greater than 205,000 Btuh (60.1kWh) the 10 foot (3050 mm) combustion tube

adjoining to the burner and the second emitter tube will be constructed of 16 gauge

stainless steel with a subsequent 10 foot (3050 mm) length of 16 gauge aluminized steel

d. The balance of the heat exchanger tube system (lengths as approved for burner input)

will be 10 ft (3050 mm) lengths of 16 gauge hot rolled steel

e. Hot rolled heat exchanger tubes will be coated with a high temperature emissive coating

f. The system tubes will have a swage of approximately 4 inches (100 mm) in length to

accommodate the connection of subsequent tubes and vent pipe at the heater

termination

g. Each tube connection in the system will be secured in place with a 4 inch (100 mm)

TorcTite® coupler

Summary of content (5 pages)

PAGE 1
HVAC Guideline Specifications HE+ Series (Single-stage, Two-stage & Modulating) Positive Pressure Radiant Tube Type Gas-Fired Infrared Heater Commercial/Industrial Applications Part 1 — General 1.01 SYSTEM DESCRIPTION Indoor overhead mounted, electrically controlled positive pressure radiant tube type infrared heating unit utilizing gas combustion for heating of spaces or areas. 1.02 QUALITY ASSURANCE A. Heater will be tested in accordance with ANSI Z83.20-2016 / CSA 2.
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h. For burner inputs of 225,000 Btuh (66 kWh) and 250,000 Btuh (73.26 kWh) a special coupling system will be used for securing the connection of the combustion chamber tube to the first & second heat exchangers tube as indicated in the Installation and Owners Manual C. Reflector Shield System: 1. General: a. Reflector shields will be constructed of high grade steel with a heat and corrosion resistant hot-bonded aluminum-silicon alloy coating. b.
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F. Controls and Safeties: 1. General: a. Electrical Rating: The burner will operate on a 115Vac, 60Hz electrical supply with a current rating of no less than 1.5A at 115Vac b. Heater gas and ignition controls will be readily accessible for servicing. c. The burner will have solid state direct spark ignition and flame sensor control that is dedicated to secure the operation of the burner 2. Ignition and Flame Control: a.
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G. Exhaust Requirements: a. Direct Vented gas fired infrared heating system installation will comply with the manufacturer’s installation instructions, the current National Natural Gas and Propane Installation Code and all applicable local codes using: i. A 4 inch (100 mm) vent pipe of a gauge prescribed by national and/or local codes ii.
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the set operating temperature by 9F° (5C°) when area lighting level is reduced due to an unoccupied condition. a. The thermostat will be comprised of a metal dome that will attach to a mounting plate using two metal screws. All control circuitry and comfort temperature selection controls will be mounted inside of the metal dome enclosure to protect the circuitry and provide resistance to tampering with temperature settings. i.