20
14D9999
14D9999
21
CHECKING GAS PRESSURE
NPT Test Plug
Test Port “OUT”
Test
Points
Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after com-
pleting connection.
DO NOT USE AN OPEN FLAME.
Check the gas pressure with the appliance burning and the control set to
HIGH
.
MANUAL CONTROL
(Figure 16)
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 either side of regu-
lator body. Install fitting and tubing to pressure gauge.
After taking pressure reading, reinstall test plug. Check
for gas leaks.
THERMOSTAT CONTROL
(Figure 17)
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 tak-
ing pressure reading, be sure and turn captured screw
clockwise firmly to reseal. Do not over torque. Check
for gas leaks.
MILLIVOLT CONTROL
(Figure 18)
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 “OUT” 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 16 - Pressure Test Point Location
Figure 17 - Alternate Test Point Location for Thermostat
Control Unit
Figure 18 - Pressure Test Point Location
The heater gas inlet connection is a
3
/
8
" NPT at the valve. To connect from
the opposite side, route the pipe under the rear portion of the unit.
When tightening up the joint to the valve, hold the valve securely to prevent
movement.
Connecting directly to
an unregulated propane/
LPG tank can cause an
explosion.
W
ARNING