100001021-50
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
3.5" WC
10" WC
Minimum
1.6" WC
6.4" 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.
Caution:
The gas line should be installed by a qualified service person in accordance with all building codes. This
section is intended as a guide for qualified technicians installing this appliance. Consult local and / or national building
codes before proceeding.
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. fitting. Correct gas line diameter must be used to assure proper operation and pressure.
NOTE:
This fireplace has an input rate of 54,900 BTU/HR on both Natural Gas and Propane.
It is essential that a union or flanged connection be installed just upstream of the valve and inside the control compart-
ment to allow for repair or replacement of the gas valve.
NOTE:
A sediment trap, as per national fuel gas code, must be installed in the gas supply line no more than 6 feet from
the gas control valve to minimize the possibility of any loose scale or dirt within the gas supply line from entering the
control valve.
DO NOT HARD PIPE GAS LINE TO VALVE.
A method of disconnecting the valve from the gas line such as a union or
flare fitting must be provided to allow for repair or replacement of the gas valve.
Check local codes for additional requirements.
1. Connect the gas supply to the valve (Figure 26).
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.
Verify gas pressures with the fireplace lit and on the highest
setting.
Please refer to the Burner Installation Manual for gas pressure
testing procedure.
SUPPLY
PRESSURE
MANIFOLD
PRESSURE
Figure 33: Test ports.
19
TCWS54D2 091418-40
Gas Supply
Gas Pressure Check
