Monessen Hearth DBX24C* manual Checking GAS Pressure, Manual Control Figure

CHECKING GAS PRESSURE

WARNING WARNING

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 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.

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.

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.

NPT Test Plug

Figure 28 - Pressure Test Point Location

Test

Points

Figure 29 - Alternate Test Point Location for Thermostat

Control Unit

Test Port “A”

Figure 30 - Pressure Test Point Location

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