White Rodgers 36C74 user manual

Summary of the content on the page No. 1

ON
Type 36C74
Combination Gas Valve
WHITE-RODGERS
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
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 re

Summary of the content on the page No. 2

PRECAUTIONS DO NOT BEGIN INSTALLATION UNTIL YOU READ THE FOLLOWING PRECAUTIONS. If you do not follow these instructions exactly, a fire or explosion may ! WARNING result, causing property damage, personal injury or loss of life. 1. Failure to turn off electric or main gas supply 4. DO NOT USE WIRE JUMPER on pilot sys- to heating system could cause personal in- tems, such as standing pilot, proven pilot, or jury and/or property damage by shock, gas spark-to-pilot ignition–a fire and/or explo- su

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INSTALLATION MAIN PIPING CONNECTIONS Drop NOTE Horizontal 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 Gas Valve Riser NOTE: and electrical connections from the old control. 3 in. Always Include minimum A Drip Leg In Piping 3. The valve may be installed in any position except upside

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ON INSTALLATION (con’t) SYSTEM WIRING All wiring should be installed in accordance with local and NOTE national electrical codes and ordinances. REFER TO AND FOLLOW THE APPLIANCE Check that the electrical power supply used agrees with MANUFACTURER’S WIRING DIAGRAM. REFER TO the voltage and frequency shown on the gas control. FIG. 4 FOR TERMINAL IDENTIFICATION. Main Valve 12 Redundant Valve Coil (Pilot Valve) 34 Figure 4. Typical gas valve wiring ADJUSTMENT PILOT FLAME ADJUSTMENT PRESSURE REGUL

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OFF PILOT LIGHTING INSTRUCTIONS AND PRECAUTIONS FOR YOUR SAFETY READ BEFORE LIGHTING If you do not follow these instructions exactly, a fire or explosion ! WARNING may result causing property damage, personal injury or loss of life. A. This appliance is equipped with an intermittent ignition phone. Follow the gas supplier’s instructions. device which automatically lights the pilot. Do NOT try to • If you cannot reach your gas supplier, call the fire light the pilot by hand. department. B. BEFOR

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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