Download Monessen Hearth DBX24 Operating instructions

WARNING
CHECKING GAS PRESSURE
Connecting directly to an
unregulated propane/LPG
tank can cause an explosion.
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 29)
The pressure regulator is preset and locked to discourage tampering. If the pressure is not as specified, replace the regulator with the correct part from the parts
list in this manual.
NPT Test Plug
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.
Figure 29 - Pressure Test Point Location
THERMOSTAT CONTROL (Figure 30)
Test
Points
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 30 - Alternate Test Point Location for Thermostat
Control Unit
MILLIVOLT CONTROL (Figure 31)
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.
33D0237
Test Port “A”
Figure 31 - Pressure Test Point Location
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