Caution: The gas line should be installed by a qualifi ed service person in accordance with
all building codes. This section is intended as a guide for qualifi ed technicians installing this
appliance. Consult local and / or national building codes before proceeding.
This fi replace has two gas controls and gas lines must be run to both by the installer in order
for the fi replace to operate correctly.
Gas supply line access holes are located at the top and left sides of the Control Box. Gas
valve inlet accepts a 3/8" N.P.T. fi tting. Correct gas line diameter must be used to assure
proper operation and pressure.
The fi replace has an input rate of 83,700 BTU/HR on both Natural Gas and Propane.
Correct gas pressure requirement:
Natural
Gas
Propane
Min. Pressure
5.0" WC
12.5" WC
(For purpose of input adjustment)
Max. Pressure
13.9" WC
13.9" WC
Manifold
Pressure
Maximum
3.4" WC
11" WC
Minimum
1.8" WC
5.5" WC
Note: To test the gas pressure, turn off the gas supply before removing the plug from
the supply pressure test port or manifold pressure test port.
There are four ports on this fi replace. The top two are connected to the rear burner
and the bottom two are to the front burner. Manifold pressures should be checked on
both to ensure they are correct.
Verify gas pressures with the fi replace lit and on the highest setting.
Please refer to the Burner Installation Manual for gas pressure testing procedure.
It is essential that a union or fl anged connection be installed just upstream of the
valve and inside the control compartment to allow for repair or replacement of the
gas valve.
Check local codes for additional requirements.
1. Connect the gas supply to the valve (Fig. #19)
2. Turn on the gas supply and check that all connections are tight and leak free.
WARNING: The access panel including gasket must be
reinstalled after conversion/installation or servicing
has been completed. Failure to do so will cause
overheating and premature failure of the control system.
Fig. #25a
REAR
FRONT
MANIFOLD PRESSURE
SUPPLY PRESSURE
SUPPLY PRESSURE
MANIFOLD PRESSURE
15
TC54.CE2 080211-36
Gas Supply
Gas Pressure Check
