White Rodgers 36C04U-438 Installation Instructions

Type 36C04, 36C14
OFF
PILOT
ON
Step-Opening
WHITE-RODGERS
INST ALLA TION INSTRUCTIONS
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.
This multi-function gas control combines, into a single compact package, the functions of a 3-position manual valve, a main gas valve, pressure regulator and 100% shut-off automatic pilot. The pilot gas outlet accepts a 1⁄4” pilot line connection.
Combination Gas Control
(24 Volt, 120 Volt & 750 mV Models)
DESCRIPTION
ON
OFF
PILOT
Model No. Voltage
36C04 36C04A 36C04U
36C14 36C14A 36C14U
24 Volt
120 Volt
750 mV
24 Volt
120 Volt
750 mV
Type of Gas
Nat Nat Nat
LP LP LP
Pilot Gas Outlet:
Located at outlet end of the valve
Type of Gas:
Suitable for all domestic heating gases
Pressure Rating:1⁄2 lb. per sq. in. Pressure Regulator Adjust Range (typical;see con-
trol label):
Natural Gas: 2.5 to 5.0” W.C. LP Gas: 7.5 to 12” W.C.
Ambient Temperature: -40° to 175°F Thermocouple (24 Volt and 120 Volt types):
Use W-R Type H06
Pilot Generator (750 mV types):
Use W-R Type G01A-32
Mounting: Any position except upside down
SPECIFICATIONS
PIPE SIZES/CAPACITIES
Capacity (BTU/hr) at
1” pressure drop across valve
Nat. Gas
Pipe Size
(inches)
1
⁄2” x 3⁄8”
1
⁄2” x 1⁄2”
1
⁄2” x 3⁄4”
3
⁄4” x 3⁄4”
UPRIGHT
(1000 BTU/cu. ft.,
64 Sp. Gr.)
100,000 230,000 230,000 280,000
Upright, 90° from upright or vertical
LEFT OR RIGHT
LP Gas
(2500 BTU/cu. ft.,
1.53 Sp. Gr.)
162,000 372,600 372,600 453,600
INLET BOSS UP OR DOWN
OFF
ON
NOTE: Control shown may not be identical to replacement control.
Figure 1. Mounting positions
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398
Printed in U.S.A.
PART NO. 37-5837B
Replaces 37-5837A
9947
PRECAUTIONS
DO NOT BEGIN INSTALLATION UNTIL YOU READ THE FOLLOWING PRECAUTIONS.
!
WARNING
result, causing property damage, personal injury or loss of life.
1. Failure to turn off electric or main gas supply to heating system could cause personal in­jury and/or property damage by shock, gas suffocation, fire, and/or explosion.
2. Do not use this control on circuits exceeding specified voltage. Higher voltage will dam­age the control and may cause shock or fire hazard.
3. NEVER USE FLAME OR ANY KIND OF SPARK TO CHECK FOR GAS LEAKS–COULD CAUSE FIRE AND/OR EXPLOSION.
If you do not follow these instructions exactly, a fire or explosion may
!
CAUTION
1. Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring can cause equipment damage, prop­erty damage, and/or personal injury.
4. DO NOT USE WIRE JUMPER on pilot sys­tems, such as standing pilot, proven pilot, or spark-to-pilot ignition–a fire and/or explo­sion may result.
5. Do not use a control set for natural gas with LP gas, or a control set for LP gas with natural gas. Personal injury and/or property damage, gas suffocation, fire, and/or explo­sion may result.
2. This control is not intended for use in loca­tions where it may come in direct contact with water. Suitable protection must be pro­vided to shield the control from exposure to water (dripping, spraying, rain, etc.).
INSTALLATION
MAIN PIPING CONNECTIONS
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.
2. If replacing an existing valve, disconnect all plumb­ing and electrical connections from the old control.
3. The valve may be installed in any position except upside down. The arrow on the bottom plate indi­cates the direction of gas flow through the valve.
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.
5. Apply pipe joint compound (pipe dope) or teflon tape
that is approved for all gases, only to the male
Always Include
A Drip Leg In Piping
Horizontal
minimum
2
Drop
Horizontal
NOTE:
Drop
3 in.
Piped Gas
Supply
Figure 2. Typical gas valve piping
Riser
minimum
Gas Valve
3 in.
Tubing Gas
Supply
Gas Valve
Riser
minimum
Piped Gas
Supply
Gas Valve
3 in.
INSTALLATION (cont’d)
threads of the pipe joints. DO NOT apply com-
pound or teflon tape to the first two threads (see fig. 2 for typical piping connections).
6. If you are using a vise or open-end wrench to hold the valve while installing piping, do not tighten exces­sively, as this may damage the valve.
7. 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 leak detection solution or soap suds. Bubbles form­ing indicate a leak. SHUT OFF GAS AND FIX ALL
LEAKS IMMEDIATELY.
PILOT GAS CONNECTION
Install fitting into pilot gas outlet (see fig. 3), 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
Pilot gas
outlet
PILOT
PRESS
SYSTEM WIRING
NOTE
REFER TO AND FOLLOW THE APPLIANCE MANUFACTURER’S WIRING DIAGRAM. REFER TO FIGS. 4 & 5 FOR TERMINAL IDENTIFICATION.
All wiring should be installed in accordance with local and national electrical codes and ordinances.
Always check that the electrical power supply used agrees with the voltage and frequency shown on the gas control.
High Limit
Thermostat
TH TH-PG PG
White-Rodgers 36C Gas Valve
To Pilot
Generator
Gas outlet
Figure 3. Gas valve side view
TAP
Figure 4. Wiring for 36C04U & 36C14U (.750 Volt)
Thermostat
Gas valve
terminal panel
High
TH TH-TR TR
24 VAC
Transformer
limit
Hot
Line
Figure 5. Wiring for 36C04 & 36C14 (24 Volt)
Line
Gas valve
Line voltage
operating
control
High
limit
Figure 6. Wiring for 36C04A & 36C14A (120 Volt)
3
ADJUSTMENT
THERMOCOUPLE CONNECTION
(For 24 VAC and 120 VAC Models)
The thermocouple connection should be clean to ensure good electrical contact. Run the thermocouple nut into the power unit tapping as far as possible by hand. Then use a small wrench to set the nut with a 1⁄4 to 1⁄2 additional turn. Do not overtighten.
PILOT GENERATOR CONNECTION
(For 750 mV Models)
Be sure the pilot generator is completely engaged into the pilot burner. Be sure that the two terminals from the pilot generator are securely tightened beneath the proper screws on the valve. Connect the power unit lead to the high limit and the high limit to the TH-PG terminal.
PILOT GAS ADJUSTMENT
If the pilot flame is low and does not engulf the bulb of the mercury flame sensor, the system will not energize the main valve. If pilot gas pressure is too high, gas will sputter past the ignition electrode, and may not ignite. High pilot gas pressure may also cause the flame to lift off the burner, causing the flame sensor bulb to sense “low” heat.
To adjust the pilot gas pressure, remove the cover screw (see fig. 7). 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.
PRESSURE REGULATOR
ADJUSTMENT
This valve is shipped from the factory with the regulator adjusted for 3.5” (natural gas). Consult the appliance rating plate to ensure that this is the proper burner manifold pressure. If another outlet pressure is required, adjustment can be made as follows. Do not force the
adjusting screw beyond the limits that it can easily be adjusted.
1. Turn off power to system at main fuse or circuit breaker.
2. Attach a manometer to the outlet pressure tap of the gas valve.
3. Turn on power to the system and energize second stage system to ignite main burner.
4. Remove plug from hole in plastic cover on top of control panel.
5. To DECREASE outlet pressure, turn the adjusting screw (beneath the plug) counterclockwise ( ).
To INCREASE outlet pressure, turn the adjusting screw clockwise ( ). Adjust regulator until pres­sure shown on manometer matches the pressure specified on the appliance rating plate.
6. Replace the plug. Cycle the valve two or three times to verify regulator setting.
Regulator adjust cover screw
ON
OFF
PILOT
Pilot adjust cover screw
Pilot adjust
cover screw
Gasket
Pilot adjust screw
Figure 7. Pilot flame adjustment
Figure 8. Gas valve top
4
PILOT LIGHTING INSTRUCTIONS
AND PRECAUTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
!
WARNING
If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
A. This appliance has a pilot that must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
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.
FOR YOUR SAFETY
“WHAT TO DO IF YOU SMELL GAS”
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
LIGHTING INSTRUCTIONS
1. STOP! Read the precautionary information above.
2. Set the thermostat to lowest setting.
3. Turn off all electrical power to the appliance.
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.
ON
OFF
PILOT
NOTE: Knob cannot be turned from PILOT to OFF unless knob is depressed slightly. Do not use tools or excessive force.
5. Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow B in the precautionary information above. If you don’t smell gas, go to next step.
6. Remove the pilot access panel(s) located under the gas control unit.
Gas control
36C Series
knob
• If you cannot reach your gas supplier, call the fire department.
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 techni­cian. Force or attempted repair may result in a fire of explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that has been under water.
7. Find pilot - follow small metal tubes from gas control.
PILOT
THERMO-
BURNER
COUPLE
8. Turn knob on gas control counterclockwise to PILOT.
9. Depress control knob all the way and hold in. 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.
If knob does not pop up when released, turn clockwise to OFF, stop and immediately call your service technician or gas supplier.
If the pilot will not stay lit after several tries, turn the gas control knob to OFF and call your service technician or gas supplier.
10.Replace pilot access panel(s).
11.Turn gas control knob counterclockwise to ON.
12.Turn on all electrical power to the appliance.
13.Set thermostat to desired setting.
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to lowest setting.
2. Turn off all electrical power to the appliance if service is to be performed.
Indicator
Figure 9. Gas cock knob
3. Turn gas control knob clockwise to PILOT.
4. Depress gas control knob slightly and turn clockwise to OFF. Do not use tools or excessive force.
OFF
PILOT
ON
Gas cock
knob
5
If you need more information about this product, please write to us at:
WHITE-RODGERS DIVISION, Emerson Electric Co. 9797 Reavis Road St. Louis, MO 63123-5398 Attn: Technical Service Department
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