White Rodgers 36C21 specifications Installation Instructions, Description, Specifications

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. (1⁄2 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.)
1⁄2” x 3⁄8”	100,000	162,000
1⁄2” x 1⁄2”	230,000	372,600
1⁄2” x 3⁄4”	230,000	372,600
3⁄4” x 3⁄4”	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