36C21 Series

WHITE-RODGERS

Main Gas Valves

INSTALLATION 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.

DESCRIPTION

These Gas Valves control the flow of gas to the main burner under command of a room thermostat. They are suitable for use on all gases and may be used with all types of gas heating equipment. They may be mounted in any position except upside down.

NOTE

Some parts of this gas valve are also used to make more complex combination gas controls. Disregard the nota- tions “Pilot”, “Pilot Adj.” and “Vent ”. Although these notations do appear on the valve, they are not functional on model 36C21 Series controls.

SPECIFICATIONS

Electrical Rating:

Main Valve

Model No.

Voltage

Current

36C21U

750 MV

D.C.

36C21

24 volts

.23 Amp

36C21A

120 volts

.035 Amp

Maximum Pressure Rating:

14" W.C. (12 lb. per sq. in.) Ambient Temperature: -40°to 175°F

PIPE SIZES/CAPACITIES

 

Capacity (BTU/hr) at

 

1” pressure drop across valve

 

Nat. Gas

LP Gas

Pipe Size

(1000 BTU/cu. ft.,

(2500 BTU/cu. ft.,

(inches)

64 Sp. Gr.)

1.53 Sp. Gr.)

12” x 38

100,000

162,000

12” x 12

230,000

372,600

12” x 34

230,000

372,600

34” x 34

280,000

453,600

!CAUTION

Do not use this valve on indoor LP gas furnaces except with 100% shut-off system.

Mounting: Any position except upside-down

MOUNTING POSITIONS:

Upright, 90°from upright or vertical

 

 

UPRIGHT

 

 

 

 

 

 

 

INLET BOSS

 

 

 

 

 

 

 

 

 

UP OR DOWN

 

 

 

 

 

 

 

 

 

 

 

LEFT OR RIGHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

360°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHITE-RODGERS DIVISION

 

 

EMERSON ELECTRIC CO.

Printed in U.S.A.

PART NO. 37-4048B

9797 REAVIS ROAD

Replaces 37-4048, 37-2570, 37-1972

ST. LOUIS, MISSOURI 63123-5398

 

9615

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White Rodgers 36C21 specifications Installation Instructions, Description, Specifications