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GAS SUPPLY REQUIREMENTS
Correct gas pressure and proper gas supply line sizing is imperative to
the successful performance of your Mendota gas fireplace. Be sure
the gas supplier or plumber carefully checks for correct gas pressure
and gas line sizing when installing the fireplace.
It is critical to carefully check for gas leaks when hooking up the
fireplace -- check with soap & water solution.
Be sure to install "approved" flex gas line with brass-to-brass fit-
tings to prevent gas leaks at connections.
Gas supply piping must include a drip leg to eliminate the possibil-
ity of contaminants entering the gas train.
Adhere strictly to local and national codes for entire installation.
Correct gas pressure and proper gas supply line sizing is required.
GAS SUPPLY LINE SIZING
This Mendota Gas Fireplace comes equipped with a 1/2" N.P.T. Fe-
male inlet. Gas supply piping must enter the Fireplace cabinet on the
left side.
An approved manual shut-off ball valve, as required by local codes
must be installed at an accessible location. The appliance and its indi-
vidual shut-off 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 (3.5 kPa).
The appliance must be isolated from the gas supply piping system by
closing its manual shut-off ball valve during any pressure testing of the
gas supply piping system at test pressures equal to or less than 1/2
PSIG (3.5 kPa).
A proper gas line diameter must be selected to run from the supply
regulator to the Fireplace. Refer to the following table for proper gas
pipe diameters. Strictly adhere to the correct pipe sizes.
PIPE LENGTH
(FEET)
SCHEDULE 40 PIPE
INSIDE DIA.
TUBING, TYPE L
OUTSIDE DIA.
NAT.
L.P.
NAT.
L.P.
0-10
1/2" (1.3 cm)
3/8" (1.0 cm)
1/2" (1.3 cm)
3/8" (1.0 cm)
10-40
1/2" (1.3 cm)
1/2" (1.3 cm)
5/8" (1.6 cm)
1/2" (1.3 cm)
40-100
1/2" (1.3 cm)
1/2" (1.3 cm)
3/4" (2.0 cm)
1/2" (1.3 cm)
100-150
3/4" (2.0 cm)
1/2" (1.3 cm)
7/8" (2.3 cm)
5/8" (1.6 cm)
150-200
3/4" (2.0 cm)
1/2" (1.3 cm)
7/8" (2.3 cm)
3/4" (2.0 cm)
NOTE:
Some areas allow coated stainless steel (CSST), copper tubing or galvanized pipe - check with local ap-
proval agencies and codes. NEVER use plastic pipe.
GAS PRESSURE CHECKING REQUIREMENTS
Inlet and manifold gas pressure checking taps are located on gas valve. Perform inlet and outlet pressure tests before
completing the facing installation. Remove valve access cover box on left side of fireplace to access the gas valve and all
control components.
A qualified installer shall take pressure measurements at these ports to verify and set the correct inlet gas pressures dur-
ing initial installation. Outlet gas pressures are factory-set and cannot be field adjusted.
NOTE:
Check for gas leaks with soap and water solution on all factory joints and field installed joints during first firing of
this appliance.
Gas Supply and Electrical
Supply Inlets Locations
WARNING
: Never use any type of pipe thread sealants or compounds on the seats of flare or compression connections.
3 1/8
in
13 13/16 in
4 13/16 in
9 15/16 in
11
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IN
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14
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A
BL
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RE
Q
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A
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IN
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1/
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F
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