White Rodgers 36C74 - Manual
White Rodgers 36C74 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – PRECAUTIONS; WARNING
- Page 3 – Figure 2. Typical gas valve piping; NOTE; Figure 3. Gas valve side view
- Page 4 – SYSTEM WIRING; Pilot Adjust; Figure 5. Pilot flame adjustment; Figure 4. Typical gas valve wiring; ADJUSTMENT; Energize valve to ignite main burner.; Figure 6. Gas valve top
- Page 5 – FOR YOUR SAFETY READ BEFORE LIGHTING; Figure 7. Gas Cock Knob
Printed in U.S.A.
PART NO. 37-5868A
Replaces 37-5153A
9732
WHITE-RODGERS
CONTENTS
Description ......................................................... 1
Specifications ..................................................... 1
Precautions ........................................................ 2
Installation .......................................................... 3
Main Piping Connection
Pilot Gas Connection
System Wiring
Adjustment ......................................................... 4
Pilot Flame Adjustment
Pressure Regulator Adjustment
Pilot Lighting Instructions and Precautions ........ 5
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
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
The 36C74 Gas Valve is for use on systems providing
automatic ignition of the pilot and/or main burners and
incorporates the following features: pilot/redundant sole-
noid valve, main valve, integral pressure regulator and
male spade terminals for point-to-point wiring.
This gas valve is also equipped with a step-opening
feature to provide for quieter main burner ignition. The
valve opens partially until main burner flame is estab-
lished, then the valve opens to full operating pressure.
Electrical Rating:
24 VAC (30 Volts max. Voltage), 60 Hz.
Types of Gases: Natural or LP Gas
Pressure Rating: 14” W.C. (
1
⁄
2
PSI)
Ambient Temperature: -40
°
to 175
°
F (-40
°
to 79
°
C)
Regulator Adjustment Range:
Natural Gas: 2.5” to 5.0” W.C. (Full flow)
LP Gas: 7.5” to 12.0” W.C. (Full flow)
(Step pressure not adjustable)
SPECIFICATIONS
INSTALLATION INSTRUCTIONS
Type 36C74
Combination Gas Valve
INLET BOSS
UP OR DOWN
UPRIGHT
LEFT OR RIGHT
Upright, 90
°
from upright or vertical
NOTE: Control shown may not be identical
to replacement control.
ON
OFF
Figure 1. Mounting Positions
PIPE SIZES/CAPACITIES
Pipe Size
(inches)
Capacity (BTU/hr) at
1" pressure drop across 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
Nat. Gas
(1000 BTU/cu. ft.,
64 Sp. Gr.)
LP Gas
(2500 BTU/cu. ft.,
1.53 Sp. Gr.)
OFF
ON
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
2 DO NOT BEGIN INSTALLATION UNTIL YOU READTHE FOLLOWING PRECAUTIONS. PRECAUTIONS 1. Failure to turn off electric or main gas supplyto heating system could cause personal in-jury and/or property damage by shock, gassuffocation, fire, and/or explosion. 2. Do not use this control on circuits exceedings...
3 INSTALLATION MAIN PIPING CONNECTIONS 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 boxor circuit breaker. Also turn off the main gas supply. 2. If replacing an existing valve, disconnect all plumbingand el...
4 SYSTEM WIRING R E F E R T O A N D F O L L O W T H E A P P L I A N C EMANUFACTURER’S WIRING DIAGRAM. REFER TOFIG. 4 FOR TERMINAL IDENTIFICATION. INSTALLATION (con’t) Pilot Adjust Cover Screw Gasket Pilot AdjustScrew Figure 5. Pilot flame adjustment NOTE PILOT FLAME ADJUSTMENT This control was facto...
