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9
GAS CONNECTION
GAS PRESSURE CHECK
The heater regulator controls the burner pressure which should be checked at the pressure test point located on the
right side of the main control and is accessible from the side of the gas log assembly (see FIGURE 7).
The pressure should be checked with the heater burning and the control set to high (HI).
The pressure regulator is preset and locked to avoid tampering. If the pressure is not as specified in Product
Specifications (Page 5), contact your dealer and replace the regulator.
FIGURE 7. Pressure Test Point Location
Control Valve
Control Bracket
(Rightside view
facing heater)
Test Pressure
Input
Test Pressure
Output
Gas Inlet Connection (3/8" NPT)
FIGURE 6. Rear View of 9740 Vent-Free Gas Heater
The gas inlet connection is 3/8" NPT, made at
the rear of the main control through the area at
the rear of the pedestal.
Test all gas joints from the gas meter to the
heater for leaks using soap and water solution
after completing connection. DO NOT USE
AN OPEN FLAME.