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.
SUPPLY
PRESSURE
MANIFOLD
PRESSURE
Figure 30: Test ports.
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.
Verify gas pressures with the fireplace lit and on the highest setting.
Please refer to the Burner Installation Manual for gas pressure testing
procedure.
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: 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 23).
2. Turn on the gas supply and check that all connections are tight and leak free.
17
TC42D 301015-48
5056.426D
Gas Supply
Gas Pressure Check
