Gas Pressure Check; Gas Connection - USSC Ambiance B9945L Installation And Operation Instructions Manual

FIGURE 6. Rear View of 9945 Vent-Free Gas Heater
The heater regulator controls the burner pressure which should be checked at the pressure test point located on the
front of the main control and is accessible through the front of the heater. (see FIGURE 6).
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.
Gas Inlet Connection (3/8" NPT)
FIGURE 7. Pressure Test Point Location
10

GAS CONNECTION

The gas inlet connection is 3/8" NPT, made at
the side 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.

GAS PRESSURE CHECK