41
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
.
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 burners operating.
To measure the gas supply pressure, use the following
procedure.
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. See White-
Rodgers 36J54 gas valve (Figure 43B) fto locate the
inlet pressure tap.
note: I
f
usIng
tHe
Inlet
Pressure
taP
on
tHe
w
HIte
-
r
oDgers
36j54
gas
ValVe
,
tHen
use
tHe
36g/j V
alVe
P
ressure
c
Heck
k
It
, P
art
n
o
. 0151k00000s.
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.
If supply pressure differs from table, make the 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 stated in
step three.
g
as
M
anIfolD
P
ressure
M
easureMent
anD
a
DjustMent
CAUTION
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
.
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
the blower off delay time expires, the blower de-
energizes.
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
White-Rodgers Model 36J54 (Two-Stage)
f
Igure
62a
Inlet
Pressure
Boss
Low Fire
Regulator
Adjust
Manometer
Manometer
Hose
High Fire Regulator
Adjust
Regulator
Vent
Outlet
Pressure Boss
Open to
Atmosphere
On/Off Switch
High Fire Coil
Terminal (HI)
Coaxial Coil
Terminal (M)
Common
Terminal(C)
White-Rodgers Model 36J54 Connected to Manometer
f
Igure
62B
Natural Gas Minimum: 4.5" w.c. Maximum: 10.0" w.c.
Propane Gas Minimum: 11.0" w.c. Maximum: 13.0" w.c.
INLET GAS SUPPLY PRESSURE
