Gasmac GARAGEMAC GM-40S, Installation & Operating Instructions Manual

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30
NATURAL GAS AND LIQUID PROPANE CONVERSION
INSTRUCTIONS (CONT.)
- Read the instructions supplied with the conversion kit for details unique to the
associated valve carefully. Failure to follow instructions provided with the
conversion kit can damage product or cause a hazardous condition, property
damage, personal injury or loss of life.
- Remove regulator cap screw and pressure regulator adjusting screw
- Replace the existing spring with the one provided by the manufacturer.
- Re-install regulator cap screw and pressure regulator adjusting screw.
- Replace gas orifice with the one provided by the manufacturer.
- Check the regulator setting using a manometer:
- Remove outlet pressure tap plug from gas control and connect pressure gauge.
- Turn gas control knob to ON position
- To obtain an accurate outlet pressure reading, main burner must be cycled on
and off several times to stabilize the pressure regulator.
- Operate heater and read pressure gauge. Adjust pressure regulator if necessary.
Refer to the valve conversion kit literature for details unique to the associated
valve.
- Remove pressure gauge and replace outlet pressure tap plug and pressure
regulator cap screw. Refer to chart below for manifold pressure and maximum
and minimum gas pressures of the converted heater
.
Gas Supply Natural Gas Propane
Manifold Pressure 3.5” W.C. 10.0” W.C.
Min. Inlet Pressure 7.0” W.C. 11.5” W.C.
Max. Inlet Pressure 14.0” W.C. 14.0” W.C.
Max. Outlet Pressure 3.5” W.C. 10.0” W.C.
- Mount the conversion label on the gas control.
- Mount the conversion label on the heater
- Perform gas leak test after completion of installation:
- Never use a match or other flame to test for gas leaks.
- Paint pipe connections upstream of gas control with rich soap and water solution
to check for leaks to all connections and joints and if bubbles appear, leaks have
been detected and must be corrected.
- Never operate the heater with leaking connections.
- Stand clear of main burner while lighting to prevent injury caused from hidden
leaks that could cause flashback in the appliance.
- With burner operating, paint pipe joints (including adapters) and control inlet and
outlet with rich soap and water solution.
- Replace part if gas leak cannot be stopped.
- Refer to the Operating Sequence to place system in operation and observe
through at least one complete cycle to assure all controls are operating properly.