88
Operating Your Furnace
Starting Your Furnace
WARNING
Personal Injury Hazard
To avoid death, personal injury, or property damage,
do not remove any internal compartment covers.
Electrical components are contained in both
compartments. Contact a qualified servicer at once if
any abnormal condition is noticed.
To put your furnace into operation, follow the steps listed
below.
1. Close the manual gas valve external to the furnace.
2. Turn off the electrical power supply to the furnace.
3. Set room thermostat to lowest possible setting.
4. Remove the louvered door on the front of the furnace
by loosening the two screws securing the door to the
blower deck.
5. This furnace is equipped with an ignition device to au-
tomatically light the burners. Do not try to light burn-
ers by hand.
6. Turn the gas control knob or lever clockwise
to
the OFF position. The knob or lever should turn eas-
ily. Do not use excessive force.
7. Wait five minutes to clear out any gas. Then smell
for gas, including near the floor. This is important.
Some types of gas are heavier than air and the smell
will be closer to the floor.
8. If gas can be smelled following the five minute wait-
ing period in Step 7, follow the instructions on the
front page of this manual. If gas can not be smelled:
Turn the gas control knob or lever counterclockwise
to the ON position. The knob or lever should
turn easily. Do not use excessive force.
9. Replace the door on the front of the furnace.
10. Open the manual gas valve external to the furnace.
11. Turn on the electrical power supply to the furnace.
12. Set the room thermostat to the desired temperature.
NOTE:
There is an approximate 20 second delay
between thermostat energizing and burner firing.
Shutting Down Your Furnace
To shut down your furnace, follow the steps listed below.
1. Set the thermostat to lowest setting.
2. Turn off the electrical power supply to the furnace.
3. Remove the louvered door on the front of the furnace
by loosening the two screws securing the door to the
blower deck.
4. Turn the gas control knob or lever clockwise
to
the OFF position. The knob or lever should turn easily
by hand. Do not use excessive force.
5. Close manual gas shut-off valve external to the fur-
nace.
6. Replace the door on the furnace.
High Manifold
Regulator Adjustment
Screw (Under Cap)
Inlet Pressure Tap
(Side of Valve)
OFF
ON
PM
C
HI
Low Manifold
Regulator Adjustment
Screw (Under Cap)
Outlet (Manifold)
Pressure Tap
(Side of Valve)
Outlet
Inlet
Gas Valve
Control Knob
Figure 2
White-Rodgers 36E96
