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3.4 PLUMBING TECHNICAL REFERENCES
Gas Supply Requirements
NOTE: If Fireplace is to be operated with LP gas, see Chapter
manual before proceeding.
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 AND WATER
SOLUTION OR COMBUSTIBLE GAS SNIFFER.
BE SURE TO INSTALL CSST FLEX GAS LINE WITH BRASS-TO-BRASS FITTINGS TO PREVENT GAS LEAKS AT CONNECTIONS.
GAS SUPPLY PIPING MUST INCLUDE A DRIP LEG TO ELIMINATE THE POSSIBILITY OF CONTAMINANTS ENTERING THE GAS
TRAIN. ADHERE STRICTLY TO LOCAL AND NATIONAL CODES.
Gas Supply Line Sizing
This Mendota Gas Fireplace comes equipped with a 1/2" N.P.T. Female inlet. Gas supply piping must enter the Fireplace cabinet
on the left side.
Use the table, below, to determine the proper gas line diameter that must be installed to run from the supply regulator to the
inlet end of the main gas valve. Refer to the following table for proper gas pipe diameters.
PIPE LENGTH
[FEET]
0-10
10-40
40-100
100-150
150-200
NOTE: Some areas allow copper tubing or galvanized pipe - check with local approval agencies and codes NEVER use plastic
85-03-01116
SCHEDULE 40 PIPE
INSIDE DIA.
NAT.
1/2" [1.3 cm]
3/8" [1.0 cm]
1/2" [1.3 cm]
1/2" [1.3 cm]
1/2" [1.3 cm]
1/2" [1.3 cm]
3/4" [2.0 cm]
1/2" [1.3 cm]
3/4" [2.0 cm]
1/2" [1.3 cm]
Figure 3-33 Gas Pressure Test Ports
DXV42 TIMBERFIRE
4.3 Natural Gas to LPG Conversion
L.P.
NAT.
1/2" [1.3 cm]
5/8" [1.6 cm]
3/4" [2.0 cm]
7/8" [2.3 cm]
7/8" [2.3 cm]
pipe.
in this
TUBING, TYPE L
OUTSIDE DIAMETER
L.P.
3 /8" [1.0 cm]
1 /2" [1.3 cm]
1 /2" [1.3 cm]
5 /8" [1.6 cm]
3 /4" [2.0 cm]
Page 42
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