27
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
NOTE:
This furnace is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by hand.
5. Move the furnace gas valve manual control to the OFF
position.
6. Wait five minutes then smell for gas. Be sure to check near
the floor as some types of gas are heavier than air.
7. If you smell gas after five minutes, immediately follow the
instructions on page 5 of this manual. If you do not smell gas
after five minutes, move the furnace gas valve manual control
to the ON position.
8. Replace the burner compartment door.
9. Open the manual gas shutoff valve external to the furnace.
10. Turn on the electrical power to the furnace.
11. Adjust the thermostat to a setting above room temperature.
12. After the burners are lit, set the thermostat to desired
temperature.
F
URNACE
S
HUTDOWN
1. Set the thermostat to the lowest setting.
The integrated control will close the gas valve and extinguish
flame. Following a 15 second delay, the induced draft blower
will be de-energized. After a 90, 120, 150 or 180 second
delay period (field selectable), the circulator blower will be
de-energized.
2. Remove the burner compartment door and move the furnace
gas valve manual control to the OFF position.
3. Close the manual gas shutoff valve external to the furnace.
4. Replace the burner compartment door.
G
AS
S
UPPLY
P
RESSURE
M
EASUREMENT
CAUTION
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET
GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE
WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING.
W
HITE
-R
ODGERS
36F22 G
AS
V
ALVE
The line pressure supplied to the gas valve must be within the range
specified below.
Propane Gas
Natural Gas
Inlet Gas Supply Pressure
Minimum:5.0" W.C. Maximum :10.0" W.C.
Minimum:11.0" W.C. Maximum :13.0" W.C.
The supply pressure can be measured at the gas valve inlet pres-
sure tap or at a hose fitting installed in the gas piping drip leg. The
supply pressure must be measured with the burners operating. To
measure the gas supply pressure, use the following procedure.
OUTLET
INLET
Pressure Regulator
Adjustment
(Under Cap Screw)
Gas Valve
On/Off
Selector
Switch
Inlet Pressure Tap
(Side of Valve)
Outlet (Manifold)
Pressure Tap
White-Rodgers Model 36F22
1. Turn OFF gas to furnace at the manual gas shutoff valve
external to the furnace.
2.
Connect a calibrated water manometer (or appropriate gas
pressure gauge) at either the gas valve inlet pressure tap or
the gas piping drip leg.
Gas Line
Gas
Shutoff
Valve
Gas Line
To Furnace
Drip Leg Cap
With Fitting
Manometer Hose
Manometer
Open To
Atmosphere
Measuring Inlet Gas Pressure (Alt. Method)
NOTE:
At either location, a hose fitting must be installed prior to
making the hose connection.
3.
Turn ON the gas supply and operate the furnace and all other
gas consuming appliances on the same gas supply line.
4.
Measure furnace gas supply pressure with burners firing.
Supply pressure must be within the range specified in the
Inlet Gas Supply Pressure
table.
Propane Gas
Natural Gas
Inlet Gas Supply Pressure
Minimum:5.0" W.C. Maximum :10.0" W.C.
Minimum:11.0" W.C. Maximum :13.0" W.C.
If supply pressure differs from above, make necessary adjustments
to pressure regulator, gas piping size, etc., and/or consult with local
gas utility.
5.
Turn OFF gas to furnace at the manual shutoff valve and
disconnect manometer. Reinstall plug before turning on gas
to furnace.
6.
Turn OFF any unnecessary gas appliances started in step 3.
W
HITE
-R
ODGERS
36G22 G
AS
V
ALVE
The line pressure supplied to the gas valve must be within the range
specified below. The supply pressure can be measured at the gas
valve inlet pressure tap or at a hose fitting installed in the gas piping
drip leg. The supply pressure must be measured with the unit OFF.
To measure inlet pressure, use the following procedure.
Pressure Regulator
Adjustment
(Under Cap Screw)
Gas Valve
On/Off
Selector
Switch
INLET
OUTLET
Inlet Pressure
Tap
Outlet Pressure
Tap
White-Rodgers Model 36G22
1.
Turn OFF gas to furnace at the manual gas shutoff valve
external to the furnace.
2.
Using 3/32 hex wrench, loosen inlet pressure tap screw one
turn.
