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NOTE: The appliance and the appliance main gas valve must be disconnected from the gas
supply system during any pressure testing of that system at test pressures in excess of 0.5 psig
(3.5 kPa). The appliance must be isolated from the gas supply piping system by closing its
equipment shut-off valve during any pressure testing of the gas supply piping system at test
pressures equal to or less than 0.5 psig (3.5 kPa).
1. The gas valve controls the gas pressure, which can be checked at the pressure test point
(1/8" NPT plug) located on the side of the valve (see schematic below).
2. The pressure should be checked with the heater burner and the control set to high (HI).
3. The pressure is preset and locked to avoid tampering. If the pressure is not as specified in
"BTU Rating and Pressure Requirements" (pg. 3), contact your dealer.
4. Replace the test plug after measuring gas pressure. Check for gas leaks.
IMPORTANT: Do not use the appliance if any part has been submerged under water.
Immediately call a qualified technician to inspect the appliance and to replace any part of the
control system and any gas control which has been under water.
OUTLET
PRESSURE
TAP
INLET
PRESSURE
TAP
CAUTION: Label all wire prior to disconnection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper operation after service.
***If installing a remote control, thermostat, or timer, attach the leads from the optional item to the
same terminals as the Wall Switch on the Millivolt Valve.
GAS PRESSURE CHECK
MILLIVOLT WIRING SCHEMATIC
THE ODS PILOT OR MAIN BURNER
WILL NOT LIGHT IF WIRES COME IN
CONTACT WITH METAL PARTS
SUCH AS THE GRATE OR BURNER!
SWITCHING
DEVICES:
REMOTE
TIMER
THERMOSTAT
THERMOPILE
7
8
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