Lighting and Shutdown Instructions | Gas-Fired Products 75, 50, 100

In multiple heater applications, the combustion air intake may be ducted individually or common ducted in the same configuration as shown for venting in Section 16.0. For combustion air intake duct sizing, please refer to the Vent Sizing Table and use the diameter indicated, based on the number of heaters per duct.

SIDE VIEW

(straight configuration)

Combustion Air Intake

Flue vent termination must be 1 ft. (30 cm) higher than combustion air inlet cap.

18.0) LIGHTING AND SHUTDOWN INSTRUCTIONS

Never operate the heater with the access panel open or removed.

The access panels must be closed tightly with all the necessary screws during operation.

Failure to do so may result in death, serious injury or property damage.

The access doors on either side of the burner must be securely fastened before operating the heater.

DANGER

FIRE HAZARD

Never operate the heater with the access panel open or removed. This access panel must be closed tightly with all the necessary screws during operation.

Failure to do so may result in death, serious injury or property damage

SIDE VIEW

1) Turn on the gas and electrical supply. Rotate the gas valve knob counter-clockwise

to the “ON” position.

2)Set the thermostat to call for heat (high fire). The blower motor will energize.

3)Ignition should occur after the 15-second pre-purge.

4)If the burner fails to light, or flame is not detected during the first trial for ignition (a period of approximately 15 seconds) the gas valve is de-energized and the control goes through an inter purge delay of approximately 60 seconds before another ignition attempt. The control will attempt two additional ignition trials before going into lockout, and the valve relay will be de-energized immediately. The blower will be turned off following a post-purge period of approximately 30 seconds.

5)If the heater does not light, manually reset the thermostat or shut off power completely for 5 minutes before attempting to relight.

6)CAUTION: The heater must be grounded. Poor grounding will give nuisance lockouts, particularly during momentary power interruptions.

7)When the thermostat is satisfied with high heat, the heater will switch to low fire.

8) To shut off the heater, rotate the gas valve knob clockwise to the “OFF” position and turn off the gas at the manual gas shut off valve supplying the heater and disconnect the electrical supply.

NOTE: THE LIGHTING AND SHUTDOWN INSTRUCTIONS ARE ALSO SHOWN ON THE PERMANENT NAMEPLATE LABEL ATTACHED TO THE HEATER.

Form #43343530
July 08	–39–