Operating Instructions; To Turn Off Gas To Appliance; Start-Up Procedure - Williams 1403622 Owner's Manual

Operating Your Furnace

Operating Instructions

1. STOP! Read the safety information above.
2. Set the thermostat to lowest setting.
3. If applicable, tum off all electric power to the appliance.
4. Open the control access panel.
5. Push in the gas control knob slightly and turn it clockwise
to "OFF".
NOTE: The knob cannot be turned from "PILOT' to "OFF"
unless the knob is pushed in slightly. Do not use force.
6. Wait five (5) minutes to clear out any gas, then smell for
gas, including near the floor. If you then smell gas, STOP!
Follow "B" in the safety information on previous page. If you
do not smell gas, go to the next step.
7. Loosen wing nut and open the pilot observation door.
8. To find the pilot, follow the metal tube from gas control
valve. The pilot is mounted on the side of the burner.
9. Turn the knob on gas control valve counter clockwise
to "PILOT".

To Turn Off Gas To Appliance

1. Set the thermostat to its lowest setting.
2. If servicing is to be performed, turn off all electric power to
the appliance.
3. Open the control access panel.
4. Push in the gas control knob slightly and turn it clockwise
to the "OFF" position. Do not use force.
5. Close the control access panel.

Start-Up Procedure

Start the furnace using the procedures in the section
"Operating Your Furnace".
WARNING: Danger of bodily injury or death.
Liquid petroleum gas (L.P.G.) is heavier than air
and it will settle in any low area, including open
depressions, and it will remain there unless the
area is ventilated. Never attempt to start-up the
unit before thoroughly ventilating the area.
Check the furnace operation as outlined in the following
instructions. If any sparking, odor or unusual noises are
encountered, shut off electrical power immediately. Recheck
for wiring errors or obstructions in or near the optional blower
motor.
10. Push in the control knob all the way and hold it in.
Immediately light the pilot. Continue to hold the control
knob in for about one (1) minute after the pilot is lit.
Release the knob and it will pop back up. The pilot should
remain lit. If it goes out, repeat Steps 5 through 10. If the
knob does not pop up when released, stop and
immediately call your service technician or gas supplier.
If the pilot will not stay lit after several tries, turn the gas
control knob to "OFF' and call your service technician or
gas supplier.
11. Close the pilot observation door, tighten the wing nut (if
equipped).
12. Turn the gas control knob counter clockwise
13. Close the control access panel.
14. Turn on all electric power to the appliance (if applicable).
15. Set thermostat to the desired setting.
WARNING: Due to high surface temperatures,
keep children, clothing,
combustible material away from the furnace.
WARNING: Danger of ignition flash and eye
injury or blindness. Protect your eyes. Never
attempt to light the pilot with the gas control
valve knob in the "ON" position. Flashback could
occur.
Notice: During the initial firing of this unit, some smoke and
odor may occur. We recommend ventilating the area during
this initial "break-in period".
Check Gas Input and Pressures
For furnaces located at altitudes between sea level and 4,500
feet, the measured input must not be greater than the input
shown on the rating plate of the furnace. For elevations above
4,500 feet, the measured input must not exceed the input on
the rating plate reduced by 4% for each 1,000 feet that the
furnace is above sea level.
The gas supply pressure and the manifold pressure with the
burners operating must also be as specified on the rating plate.
to "ON".
furniture or any