Gas Supply - Re-Verber-Ray LD Series Installation Manual

3.0 Installation
• Combustion Air Requirements
Guidelines:
Chart 3.7
Limitations for Length and Size of Combustion Air Intake Duct
Single Heater Intake
Air Intake Duct Size
4 in.
5 in.
6 in.
General
• No more than two 90 degree elbows are allowed.
• Allow for expansion. Use a 4 in. flexible hose to connect the duct to the burner control box.
• In humid environments, use insulated duct, PVC pipe or DWV (drain waste vent) to prevent
condensation on the outer surface.
• Do not draw air from attic space.
• A factory approved wall intake cap (P/N: WIV-4) must be used with horizontal outside intake
ducts. The wall intake cap must be installed to prevent blockage. Locate the intake where dirt,
steam, snow, etc. will not contaminate or clog the intake screen.
• Separate air intake duct from vent pipe a minimum of 4 ft. Also, place vent pipe higher than
adjacent air intake duct.

Gas Supply

Important! Before connecting the gas supply to the burner control box:
• Verify that the heater's gas type (as listed on the rating plate) matches that of your application and
the installation complies with national and local codes and requirements of the local gas company.
Unless otherwise noted on the rating plate, this infrared heater is designed and orificed to operate
on standard BTU gas. Contact the factory if utilizing non-standard BTU gas.
HIGH ALTITUDE: Installation of this tube heater is approved, without modifications, for elevations
up to 6,000 feet (1,829 m) MSL (sea level) in the United States. Contact the factory for
installations above these elevations.
• Check that the gas piping and service has the capacity to handle the total gas consumption of all
heaters being installed, as well as any other gas appliances being connected to the supply line.
• Check that the main gas supply line is of proper diameter to supply the required fuel pressures.
• If utilizing used pipe, verify that its condition is clean and comparable to a new pipe. Test all gas
supply lines in accordance with local codes.
• Gas Supply
Max. Intake Length
20 ft.
30 ft.
40 ft.
WARNING
!
Improperly connected gas lines may result in fire, explosion,
poisonous fumes, toxic gases, asphyxiation or death.
Connect gas lines in accordance to national, state, provincial
and local codes.
30
Dual Heater Intake
Duct Size
4 in.(single)/6 in.(dual)
4 in.(single)/8 in.(dual)
Consult factory for longer intake lengths.
LD Series
Max. Intake Length
20 ft.
30 ft