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33D4047 21
WARNING
Test Port “A”
CHECKING GAS PRESSURE
Test all gas joints from the gas meter to the heater valve for leaks
using a gas analyzer or soap and water solution after completing
connection. DO NOT USE AN OPEN FLAME.
Check the gas pressure with the appliance burning and the control
set to HIGH.
Open control access door at bottom front of unit to find valve and
regulator referred to below.
MANUAL CONTROL (Figure 28)
The pressure regulator is preset and locked to dis-
courage tampering. If the pressure is not as specified,
replace the regulator with the correct part from the parts
list in this manual.
Remove 1/8" NPT plug, located on side of regulator
body. Install fitting and tubing to pressure gauge. After
taking pressure reading, reinstall test plug. Check for
gas leaks.
MILLIVOLT CONTROL (Figure 30)
The valve regulator controls the burner pressure which
should be checked at the pressure test point.
Turn captured screw counter clockwise two or three
turns and then place tubing to pressure gauge over test
point. (Use test point “A” closest to gas inlet). After
taking pressure reading, be sure and turn captured
screw clockwise firmly to reseal. Do not over torque.
Check for gas leaks.
Figure 28 - Pressure Test Point Location
Figure 30 - Pressure Test Point Location
NPT Test Plug
WARNING
Connecting directly to an
unregulated propane/LPG tank
can cause an explosion.
Test
Points
THERMOSTAT CONTROL (Figure 29)
Turn captured screw counter clockwise two or three
turns and then place tubing to pressure gauge over test
point (Use test point closest to control knob). After
taking pressure reading, be sure and turn captured
screw clockwise firmly to reseal. Do not over torque.
Check for gas leaks.
Figure 29 - Alternate Test Point Location for Thermostat
Control Unit