Operating instructions

18 39D3200
Test Port “OUT”
WARNING
Connecting directly to an
unregulated propane/LPG
tank can cause an explosion.
CHECKING GAS PRESSURE
The heater gas inlet connection is a
3
/8" NPT at the valve. On units
with Millivolt control, the inlet connection is on the right side, when
you face the unit. On units with manual control, the inlet connection
is on the right. 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.
NPT Test Plug
MANUAL CONTROL (Figure 14)
The pressure regulator is preset and locked to dis-
courage tampering. If the pressure is not as speci-
fied, 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. Af-
ter taking pressure reading, reinstall test plug. Check
for gas leaks.
MILLIVOLT CONTROL (Figure 15)
The valve regulator controls the burner pressure which
should be checked at the pressure test point.
Turn captured screw counter clockwise two or thre turns
and then place tubing to pressure gauge over test point
(Use test point “OUT” closest to control knob). After
taking pressure reading, be sure and turn captured screw
clockwise firmly to re-seal. Do not over torque. Check
for gas leaks.
Figure 14 - Pressure Test Point Location
Manual Control
Figure 15 - Pressure Test Point Location
Milli-Volt Control
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.