Gas Supply Pressure Measurement; Gas Manifold Pressure Measurement And Adjustment - Goodman GKS9 Installation Instructions Manual

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 4 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 S
URNACE 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 150-second delay period (fixed),
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 S P M
AS UPPLY RESSURE
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 -R 36G22 G
HITE ODGERS
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.
Gas Valve
On/Off
Selector
Switch
OUTLET
Pressure Regulator
Adjustment
(Under Cap Screw)
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.
3. Connect a 5/16 inch hose and calibrated water manometer
to the gas valve inlet pressure tap. The hose should overlap
the tap by 3/8 inch.
4. Turn ON the gas supply and operate the furnace
5. Leak test. Using a leak detection solution or non-chlorine
soap suds, check for leaks at hose connection. Bubbles
EASUREMENT
CAUTION
V
AS ALVE
Inlet Pressure
Tap
INLET
Outlet Pressure
Tap
forming indicate a leak. SHUT OFF GAS AND FIX ALL
LEAKS IMMEDIATELY BEFORE PROCEEDING TO NEXT
STEP!
6. Measure furnace gas supply pressure. Supply pressure must
be within the range specified in the Inlet Gas Supply Pressure
table.
Inlet Gas Supply Pressure
Natural Gas Minimum:5.0" W.C. Maximum :10.0" W.C.
Propane Gas Minimum:11.0" W.C. Maximum :13.0" W.C.
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.
7. Turn OFF gas to furnace at the manual shutoff valve and
disconnect manometer and hose. Reinstall plug before
turning on gas to furnace.
8. Seal pressure port. Tighten inlet pressure tap screw
clockwise 7 in-lbs. minimum.
9. Retest for leaks. If bubbles form, shut down gas and fix leaks
immediately.
10. Turn valve switch ON.
G M P
AS ANIFOLD RESSURE
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS
MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE.
O
NLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE
PRESSURE REGULATOR.
W -R 36G22 G
HITE ODGERS
This valve is shipped from the factory with the regulator preset (see
control label).
Consult the appliance rating plate to ensure burner manifold pres-
sure is as specified. If another outlet pressure is required, follow
these steps.
1. Turn OFF all electrical power to the system.
2. Using a 3/32 inch hex wrench, loosen outlet pressure tap
screw one turn. Do not remove screw.
3. Connect a calibrated water manometer and 5/16 inch hose
to the gas valve outlet pressure tap. Hose should overlap
tap by 3/8 inch.
4. Turn ON system power and set thermostat to a call for heat.
5. Using a leak detection solution or non-chlorine soap suds,
check for leaks at hose connection. Bubbles forming indicate
a leak. SHUT OFF GAS AND FIX ALL LEAKS IMMEDIATELY!
Manifold Gas Pressure
Natural Gas
Propane Gas
6. Remove regulator screw cover. Turn regulator screw either
clockwise to increase pressure or counterclockwise to
decrease. Always adjust regulator to provide the correct
pressure according to the original equipment manufacturer
specifications listed on the appliance rating plate.
7. Replace regulator screw cover and finger-tighten securely.
8. Turn OFF all electrical power to the system.
9. Remove manometer and hose from outlet pressure tap.
10. Tighten outlet pressure tap clockwise 7 in-lbs minimum to
seal port.
11. Turn ON system power and set thermostat to call for heat.
12. Using a leak detection solution or non-chlorine soap suds,
26
M A
EASUREMENT AND DJUSTMENT
CAUTION
V
AS ALVE
3.5" w.c.
10.0" w.c.