Monessen Hearth LSTF36 Indoor Fireplace User Manual


 
14 79D0004
CAUTION
Plumbing connections should only be performed by a
quali ed, licensed plumber. Main gas supply must be
off when plumbing gas line to replace or performing
service.
WARNING
Connecting directly to an unregulated
propane/LPG tank can cause an
explosion.
Consult all local codes. All gas piping must be installed to comply with local codes, or in the absence of local codes, with
the latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA54.
The gas supply line must have an ANSI approved manual shutoff valve, upstream of the appliance. Either a recessed valve
with a key should be mounted to the wall or floor outside the firebox, or an on/off appliance-style valve with union can be
placed inside the firebox. A plugged 1/8" NPT pressure taping point is recommended for service and may be incorporated
to the valve assembly. Bring a minimum 1/2" gas supply line through the knockout hole provided in the firebox.
A sediment trap may be upstream of the heater to prevent moisture and contaminants from passing through trap to
the heater controls and burners. Failure to do so could prevent the heater from operating reliably. Consult applicable
codes.
In addition to the regulator fitted to the heater, an external regulator must be used on all propane/LPG heaters to reduce
the supply tank pressure to 13" w.c. (maximum). Any copper tubing used to supply propane/LPG from the tank must be
internally tinned. Note: When connecting propane/LPG vent-free room heaters, you must use pipe sealant
resistant to propane/LPG.
Check gas type: The gas supply must be the same as stated on the heater’s rating plate. If the gas supply is different,
DO NOT INSTALL THE HEATER. Contact your dealer for the correct model.
After completing connection, test all gas joints from the gas meter to the gas heater regulator for leaks. Using soap and
water solution or a gas sniffer. DO NOT USE AN OPEN FLAME
GAS LINE INSTALLATION
WARNING
Do not connect directly to natural
gas 1/2 PSI or 2 PSI systems. Always
make sure natural gas pressure is
regulated 10.5 w.c. (maximum before
operating the unit).