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8.
Smell for gas, including near the ground. This is important
because some types of gas are heavier than air. If you have
waited five minutes and you do smell gas, immediately
follow the warnings near the beginning of this manual. If
having waited for five minutes and no gas smell is noted,
move the gas control valve switch to the ON position.
9.
Replace the heat exchanger door on the side of the unit.
10. Open the manual gas valve external to the unit.
11. Turn on the electrical power supply to the unit.
12. Set the thermostat to desired setting.
Gas Supply And Manifold Check
Gas supply pressure and manifold pressure with the burners
operating must be as specified on the rating plate.
NOTE: Use adapter kit #0151K00000S to measure gas pressure
on White-Rodgers 36J22Y gas valves.
Gas Supply Pressure Measurement
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE
INLET GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT
RATING PLATE WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES
.
OPERATING
The line pressure supplied to the gas valve must be within
the Inlet Gas Supply Pressure range specified. 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.
White-Rodgers Model 36J22Y-204
1.
Turn OFF gas to furnace at the manual gas shutoff valve
external to the furnace.
2.
Turn OFF all electrical power to the system.
3.
Inlet pressure tap connections:
a. White-Rodgers valve:
Back inlet pressure test screw (inlet pressure tap out one
turn (counterclockwise, not more than one turn).
4.
Connect manometer (or appropriate pressure gauge) at
either the gas valve inlet pressure tap or the gas piping drip
leg. See White-Rodgers 36J22Y-204 gas valve for location
of inlet pressure tap.
5. Turn ON the gas supply.
CAUTION
6.
Turn On power and operate the furnace and all other gas
consuming appliances on the same gas supply line.
7.
Using a leak detection solution or soap suds, check for
leaks at screw (White-Rodgers valve). Bubbles forming
indicate a leak. SHUT OFF GAS AND REPAIR ALL LEAKS
IMMEDIATELY!
8.
Measure the gas supply pressure with burners firing. Adjust
supply pressure using the Inlet Gas Supply Pressure table
shown below. If supply pressure reading differs from the
table, make necessary adjustments to pressure regulator,
gas piping size, etc., and/or consult with local gas utility.
Na tura l Ga s
9.
Turn OFF all electrical power and gas supply to the system.
10. Remove the manometer hose from the hose barb fitting or
inlet pressure Tap.
11. Replace inlet pressure tap:
a. White-Rodgers valve:
,
Turn inlet pressure test screw in to seal pressure port
THE
(clockwise, 7 in-lb minimum).
12. Retest for leaks. If bubbles form, shut down gas and repair
leaks immediately.
13. If there are no leaks, turn ON electrical power and gas
supply to the system.
14. Turn valve switch ON.
NOTE: If measuring gas pressure at the drip leg, a field-supplied
hose barb fitting must be installed prior to making the hose
connection. If using the inlet pressure Tap on the White-Rodgers
gas valve, then use the 36G/J Valve Pressure Check Kit,
Goodman Part No. 0151K00000S.
Measuring Inlet Gas Pressure (Alt. Method)
Gas Manifold Pressure Measurement and
Adjustment
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE
GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING
. O
PLATE
NLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING
THE GAS VALVE PRESSURE REGULATOR
Only small variations in gas pressure should be made by adjusting
the gas valve pressure regulator. The manifold pressure must be
14
INLET GAS SUPPLY PRESSURE
Mi n. 5.0" W.C., Ma x. 10.0" W.C.
CAUTION
.
,
THE
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