36C01
Combination Gas Valves
(24 Volt and 120 Volt Models)
INSTALLATION INSTRUCTIONS
WHITE-RODGERS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY
AND/OR PROPERTY DAMAGE.
DESCRIPTION
This multi-function gas controls combines into a single
ON
O F F
P I L O T
compact package the functions of 3-position gas cock, a
main gas valve and a pressure regulator. The pilot outlet
is plugged, but will accept a 1⁄4” pilot line connection. This
control can be mounted in any orientation except upside
down.
To permit replacement of a variety of valve sizes, this
controlisfurnishedwiththreereducerbushings(two3⁄4”to
1⁄2” and one 1⁄2” to 3⁄8”). Also included is a conversion kit
which allows this valve to be used at regulator settings of
4.2” W.C. to 11.0” W.C.
MODELS AVAILABLE
Model No.
36C01
36C01A
Voltage
24 volts
120 volts
Gas
Nat.
Nat.
Current
.23 Amp
.035 Amp
SPECIFICATIONS
Electrical Rating:
CAPACITY (IN BTU PER HOUR)
24 VAC, 60 Hz., 23A
NATURAL GAS
(1000 Btu/Cu. Ft.
0.64 Sp. Gr.)
LP GAS
(2500 Btu/Cu. Ft.
1.53 Sp. Gr.)
Pilot Gas Outlet:
Located at outlet end of the valve
1⁄2” x 3⁄8”
1⁄2” x 1⁄2”
1⁄2” x 3⁄4”
3⁄4” x 3⁄4”
100,000
230,000
230,000
280,000
162,000
372,600
372,600
453,600
Type of Gas:
Suitable for all domestic heating gases
Pressure Regulator Setting:
Adjustable from 21⁄2 to 5” W.C. (Factory adjusted
for 3.5” W.C.
1
Pressure Rating: ⁄2 lb. per sq. in.
Upright, 90° from upright or vertical
INLET BOSS
UP OR DOWN
Ambient Temperature: -40° to 175°F
UPRIGHT
Mounting: Any position except upside-down
LEFT OR RIGHT
O F F
ON
NOTE: Control shown may not be identical to replacement control.
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
PART NO. 37-5870B
Printed in U.S.A.
Replaces 37-5870A
9947
ST. LOUIS, MISSOURI 63123-5398
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INSTALLATION
Drop
MAIN PIPING CONNECTIONS
Horizontal
NOTE
All piping must comply with local codes, ordinances,
and/or national fuel gas codes.
1. Turn off electrical power to the system at the fuse box
or circuit breaker. Also turn off the main gas supply.
Gas Valve
NOTE:
Always Include
A Drip Leg In Piping
Riser
3 in.
minimum
2. If replacing an existing valve, disconnect all plumbing
and electrical connections from the old control.
Drop
3. Thecontrolmaybeinstalledinanyorientationexcept
upside down. The arrow on the valve indicates the
direction of gas flow through the control.
Tubing Gas
Supply
Gas Valve
Riser
Horizontal
4. You should use new pipe that is properly chamfered,
reamed, and free of burrs and chips. If you are using
old pipe, be sure it is clean and free of rust, scale,
burrs, chips, and old pipe joint compound.
Gas Valve
3 in.
5. Apply pipe joint compound (pipe dope) or teflon tape
that is approved for all gases, only to the male
threads of the pipe joints. DO NOT apply com-
pound or teflon tape to the first two threads (see fig. 1
for typical piping connections).
3 in.
minimum
minimum
Piped Gas
Supply
Piped Gas
Supply
Figure 1. Typical gas valve piping
6. If you are using a vise or open-end wrench to hold the
valve while installing piping, do not tighten exces-
sively, as this may damage the valve.
7. If additional clearance for the gas cock knob is re-
quired when installing the new valve in an existing
system, rotate the knob to the position between ON
and OFF. Depress the knob while turning the valve.
The knob will depress only while in this position.
Pilot gas
outlet
PRESS
PILOT
TAP
8. See SYSTEM WIRING when making electrical con-
nections. After all gas and electrical connections are
completed, turn gas on and check for gas leaks with
leakdetectionsolutionorsoapsuds.Bubblesforming
indicate a leak. SHUT OFF GAS AND FIX ALL
LEAKS IMMEDIATELY.
Gas outlet
PILOT GAS CONNECTION
Figure 2. Gas valve side view
Install fitting into pilot gas outlet (see fig. 2), turning until
finger-tight. Insert clean, deburred tubing all the way
through the fitting. While holding the tubing securely,
slowly tighten fitting until you feel a slight “give”. Tighten
the fitting an additional 11⁄2 turns.
3
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INSTALLATION (cont’d)
SYSTEM WIRING
Thermostat
Gas valve
terminal panel
CAUTION
!
To prevent electrical shock and/or equipment
damage,disconnectelectricalpowertosystemat
main fuse or circuit breaker box until installation
is complete.
High
limit
TH TH-TR TR
HOT
LINE
24 VAC
NOTE
Transformer
Allwiringshouldbeinstalledinaccordancewithlocal
and national electrical codes and ordinances.
Figure 3. Wiring for 36C01 (24 Volt)
Alwayscheckthattheelectricalpowersupplyusedagrees
with the voltage and frequency shown on the gas control.
Line
Line voltage
High
limit
operating
control
The typical wiring diagrams (figs. 3 & 4) show only the
terminal identification and/or wiring hook up. Always refer
to wiring instructions provided by Equipment Manufac-
turer for system hookup operation.
Gas valve
PILOT GAS ADJUSTMENT
Figure 4. Wiring for 36C01A (120 Volt)
If the pilot flame is low and does not engulf the bulb of the
mercury flame sensor, the system will not energize the
mainvalve.Ifpilotgaspressureistoohigh,gaswillsputter
past the ignition electrode, and may not ignite. High pilot
gas pressure may also cause the flame to lift off the
burner,causingtheflamesensorbulbtosense“low”heat.
Pilot adjust
cover screw
Gasket
To adjust the pilot gas pressure, remove the cover screw
(see fig. 5). To REDUCE pilot pressure, turn the pilot
adjust screw (beneath the cover screw) clockwise. To
INCREASE pilot pressure, turn the pilot adjust screw
counterclockwise. Replace and tighten cover screw.
Pilot
adjust
screw
PRESSURE REGULATOR
ADJUSTMENT
Figure 5. Pilot gas adjustment
The pressure regulator has been factory adjusted (see
control for specific setting). Although additional adjust-
ments will not normally be necessary, you may adjust the
regulator. Donotforcetheadjustingscrewbeyondthe
limits that it can easily be adjusted.
Regulator adjusting
cover screw
1. Energize valve to ignite main burner.
Pilot adjust
ON
O F F
cover screw
P I L O T
2. Remove “Reg. Adj.” cover screw (see fig. 6).
3. To DECREASE outlet pressure, turn the adjusting
screw (beneath the cover screw) counterclockwise.
To INCREASE outlet pressure, turn the adjusting
screw clockwise.
4. Replacethecoverscrew. Cyclethevalvetwoorthree
times to verify regulator setting.
Figure 6. Pressure regulator adjustment
NOTE
If adjustment to higher range (4.2” W.C. to 11.0” W.C.) is
required, use conversion kit packed with control.
4
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PILOT LIGHTING INSTRUCTIONS
AND PRECAUTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
!
WARNING
A. This appliance has a pilot that must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
•
•
Immediatelycallyourgassupplierfromaneighbor's
phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire
department.
B. BEFORE LIGHTING, smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by
hand, don't try to repair it; call a qualified service techni-
cian. Force or attempted repair may result in a fire of
explosion.
FOR YOUR SAFETY
"WHAT TO DO IF YOU SMELL GAS"
•
•
Do not try to light any appliance.
D. Donotusethisapplianceifanyparthasbeenunderwater.
Immediately call a qualified service technician to inspect
theapplianceandtoreplaceanypartofthecontrolsystem
and any gas control that has been under water.
Do not touch any electrical switch; do not use any
phone in your building.
LIGHTING INSTRUCTIONS
1. STOP! Read the precautionary information above.
7. Findpilot-followsmallmetaltubesfromgas
control.
2. Set the thermostat to lowest setting.
PILOT
THERMO-
3. Turn off all electrical power to the appliance.
BURNER COUPLE
8. Turn knob on gas control counterclockwise to PILOT.
4. Depress gas control knob slightly and turn clockwise to
OFF (see fig. 6). If knob is in ON, turn clockwise to PILOT,
then depress knob slightly and turn clockwise to OFF.
9. Depresscontrolknoballthewayandholdin. Immediately
light the pilot with a match. Continue to hold the control
knob down for about one (1) minute after the pilot is lit.
Release knob and it will pop back up. Pilot should remain
lit. If it goes out, repeat steps 4, 5, 8, and 9.
ON
Gas control
O F F
P I L O T
knob
•
If knob does not pop up when released, turn clockwise to
OFF, stop and immediately call your service technician or
gas supplier.
36C Series
•
If the pilot will not stay lit after several tries, turn the gas
controlknobtoOFFandcallyourservicetechnicianorgas
supplier.
NOTE: Knob cannot be turned from PILOT to OFF unless
knob is depressed slightly. Do not use tools or excessive
force.
10. Replace pilot access panel(s).
5. Wait fifteen (15) minutes to clear out any gas. If you then
smell gas, STOP! Follow B in the precautionary informa-
tion above. If you don't smell gas, go to next step.
11. Turn gas control knob counterclockwise to ON.
12. Turn on all electrical power to the appliance.
13. Set thermostat to desired setting.
6. Remove the pilot access panel(s) located under the gas
control unit.
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to lowest setting.
3. Turn gas control knob clockwise to PILOT.
2. Turn off all electrical power to the appliance if service is to 4. Depress gas control knob slightly and turn clockwise to
be performed.
OFF. Do not use tools or excessive force.
Gas cock
knob
Indicator
Figure 7. Gas cock knob
5
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If you need further information about this product, please write to
White-Rodgers Division, Emerson Electric Co.
9797 Reavis Road
St. Louis, MO 63123-5398
Attention: Technical Service Department
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