White Rodgers Offroad Vehicle 37 6658D User Manual

36H UNIVERSAL GAS VALVES  
FIELD  
CONVERSION INSTRUCTIONS  
FAILURE TO READAND FOLLOWALL INSTRUCTIONS CAREFULLY BEFORE  
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL  
INJURY AND/OR PROPERTY DAMAGE.  
DESCRIPTION  
The36Huniversalgasvalvesaredesignedforuseonautomatic  
spark ignition systems. The valves are shipped from the factory  
set for natural gas non-piloted applications. See the Installation  
Instructions included with the valves for proper installation.  
This document shows the modifications required if the valve is  
to be installed on an LP gas and/or piloted gas application.  
Model  
No.  
No.  
of Stages  
Opening  
Characteristics  
36H32-XXX  
36H33-XXX  
36H64-XXX  
36H65-XXX  
1
1
2
2
Fast  
Slow  
Fast  
Slow  
LP GAS CONVERSION  
For LP gas conversion, use the LP conversion kit supplied  
separately with this control. Refer to the instructions packed  
separately with LP conversion kit.  
PILOTED GAS APPLICATIONS  
WIRING  
PILOT GAS CONNECTION  
These valves are shipped with an external wire jumper installed  
fornon-pilotedgasapplications.Forapplicationsrequiringpiloted  
gas, such as intermittent pilot or spark-to-pilot systems, remove  
the external wire jumper from the main (M) and pilot (P) valve  
terminals (see figure 1).  
These gas valves are shipped with the pilot outlet plugged. For  
installations requiring pilot gas, remove the plug from the pilot  
gas outlet (see figure 2) and use the fitting packed separately  
with the valve.  
Install the fitting into the pilot gas outlet, turning until finger tight.  
Insert clean, de-burred ¼” O.D. tubing all the way through the  
fitting. While holding the tubing securely, slowly tighten the fit-  
ting until you feel a slight “give”. Tighten the fitting an additional  
1-1/2 turns.  
SW1  
SW2  
C
EXTERNAL  
JUMPER  
(+)  
(-)  
(+)  
(-)  
RECTIFIER  
The plug should not be removed for a Direct Burner Ignition  
system such as Direct Spark or Hot Surface Ignition.  
RECTIFIER  
SW1  
SW2  
P
Refer to the 36H Series Installation Instructions for pilot flame  
adjustment information.  
PILOT (REDUNDANT)  
M
Pilot Gas  
Outlet  
MAIN  
(+)  
TWO STAGE  
MODELS ONLY  
(-)  
RECTIFIER  
2ND  
STAGE  
HI  
Outlet  
Pressure  
Tap  
Figure 1. Gas valve internal wiring and terminal  
identification  
Main Gas  
Outlet  
Refer to the 36H Series Installation Instructions for additional  
system wiring information.  
Figure 2. Gas valve outlet end  
PART NO. 37-6658D  
Replaces 37-6658C  
0927  
White-Rodgers is a division  
of Emerson Electric Co.  
The Emerson logo is a  
trademark and a service mark  
of Emerson Electric Co.  
 

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