Installation manual
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your
building.
• Leave the building immediately.
• Immediately call your gas supplier from a phone remote from the
building. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call your re department.
• Use only your hand to turn the gas control ON/OFF knob
on the gas valve. Never use tools. If the valve ON/OFF knob
will not turn by hand, do not try to repair it. Call a qualied
service technician. Force or attempted repair may result in a
re or explosion.
• Should overheating occur, or the gas supply fail to shut
off, turn off the manual gas valve to the appliance before
shutting off the electrical supply.
• Do not use this appliance if any part has been under water.
Immediately call a qualied service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.
Operating Instructions and Operating Sequence
1. Set thermostat at lowest setting.
2. Turn off all electric power to the appliance.
3. This appliance is equipped with an ignition device which automatically lights
the burner. Do not try to light the burner by hand. Open the access door
and locate the gas control (ON/OFF) switch or knob on the gas valve. (See
FIGURE 26.)
4. Turn the gas control switch to “OFF” or the knob clockwise to “OFF”.
5. Wait ve (5) minutes to clear out any gas. Then smell for gas, including near
the oor. If you smell gas, STOP! and follow the steps in the WARNINGS
printed above or on the Operating Label on the heater. If you do not smell gas,
proceed to the next step.
6. Turn the gas control switch to “ON” or the knob counterclockwise to “ON”.
7. Close the access door.
8. Turn on the electric power to the heater.
9. Set the thermostat to the desired setting.
NOTE: If the appliance does not operate, follow the instructions “To Turn Off Gas
to Appliance” printed below (and on the Operating Label on the heater) and call
your service technician.
10. Thermostat calls for heat, energizing the venter motor.
11. Venter pressure switch closes, ring the unit.
12. Burner ame is sensed, and in 30 seconds after the gas valve is energized,
the fan motor is energized.
13. If the ame is extinguished during the main burner operation, the integrated
control system closes the main valve and must be reset by interrupting power
to the control circuit. (See lighting instructions on the heater.).
TO TURN OFF GAS TO THE APPLIANCE
1) Set thermostat to lowest setting
2) If service is to be performed, turn off all electric power to the appliance.
3) Open the access door.
4) Turn the gas control switch “OFF” or the knob clockwise to “OFF” (Do not
force.)
5) Close the access door.
FIGURE 26 - Gas Valve
Top View
ON/OFF Switch
Form I-UEAS, P/N 221232 R11, Page 35