UNIT PLACEMENT
Place the entire unit system in the center of the fireplace to allow proper air flow on all sides of the unit.
GAS PIPING AND GAS PRESSURE REQUIREMENTS
Check the type of gas that is supplied to your fireplace. Use only the gas type indicated on the heat-
er’s rating plate. If the gas listed on the plate is not your type of gas supply, DO NOT INSTALL
THE SYSTEM. Contact your dealer.
All gas piping must be installed to comply with local and National Fuel Gas codes. Do not use
flexible hose unless it is allowed by local codes. Compounds used on threaded joints of gas
piping must be resistant to the action of LP gas.
The gas supply line to the fireplace should not be less than 1/2” inside dimension.
GAS PRESSURE
:
Minimum inlet gas supply pressure
must be 7.0" WC for natural gas or
11"
WC for LP gas for the purpose of input adjustment. Maximum inlet gas supply pressure
must not exceed 10.5" WC for natural gas, or 13" WC for LP gas. The gas line supplying the
appliance must be
of
sufficient size to furnish the appropriate supply pressure to the
appliance when being operated on the high setting. Manifold pressure for natural gas is 4”
WC and 10” WC for LP gas.
Include a manual shutoff valve and union in the line so the appliance may be disconnected for
servicing. Provide a 1/8” NPT plugged tapping for pressure gauge connection between shutoff
valve and the appliance. Test for leaks using a soap and water solution after completing the
connection. DO NOT USE AN OPEN FLAME!
The appliance and its appliance main gas valve must be disconnected from the gas
supply piping system during any pressure testing of that system at test pressures in
excess of ½ psig (3.5kPa).
The appliance must be isolated from the gas supply piping
system by closing its equipment shut-off valve during any pressure testing of the gas
supply piping system at test pressures equal to or less than ½ psig (3.5kPa).
W
A
R
N
IN
G
FLAME APPEARANCE
Periodically check the pilot and burner flame:
The pilot flame must always be present when the heater is in operation. It should just touch the top
of the thermocouple tip.
Flames from the pilot should be visually checked as soon as the heater is installed. Periodically
check the flames visually during operation. See Figure 18.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably.
Refer to Figure 19 for incorrect shape of the pilot flame.
Figure 18.
Correct
appearance
of pilot flame.
Figure 19.
Incorrect
appearance
of pilot flame.
Page 16
