18 |
P a g e
FRONT
110VAC INLET
14-2 CABLE REQ'D
GAS L
INE
IN
L
ET
1/
2" F
NPT
REQ
'D
12
1
16
9
15
16
14
1
4
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 instal-
ling 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 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 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. Female 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 individual shut-off valve must be dis-
connected 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.
Figure 8: 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.
