Gas Supply - Empire Comfort Systems DVC28IN71 Installation Instructions And Owner's Manual

If the factory-built fireplace has no gas access hole(s) provided,
an access hole of 1.5 inch (37.5 mm) or less may be drilled
through the lower sides or bottom of the firebox in a proper
workmanship-like manner. This access hole must be plugged
with non-combustible insulation after the gas supply line has
been installed.
The gas pipeline can be brought in through the right or left side of
the appliance. The insert has a Flexline with shutoff valve located
on the right side when facing the unit. See Figures 3 and 4.
Consult the current National Fuel Gas Code, ANSI Z223.1 CAN/
CGA-B149 (.1 or .2) installation code.
NOTICE: Once the gas access hole is drilled through the bottom
of the firebox and through the fireplace, the fireplace cannot be
converted back to a solid-fuel burning fireplace.
RECOMMENDED GAS PIPE DIAMETER
Schedule 40 Pipe
Inside Diameter
Pipe
Length Natural
0-10ft 1/2
11-40ft 1/2
41-100ft 1/2
101-150ft 3/4
NOTICE: Never use plastic pipe. Check local codes before using
copper tubing or galvanized.
NOTICE: Some municipalities have additional codes. Consult
your local authority and installation code.
Page 12

GAS SUPPLY

Figure 3
Tubing, Type L
Outside Diameter
Propane Natural Propane
(Dimensions in Inches)
3/8 1/2
1/2 5/8
1/2 3/4
1/2 7/8
Use the following gas connectors:
— ANSI Z21.24 Appliance Connectors of Corrugated Metal
Tubing and Fittings.
— ANSI Z21.45 Assembled Flexible Appliance Connectors of
Other Than All-Metal Construction
The above connectors may be used if acceptable by the authority
having jurisdiction. The Commonwealth of Massachusetts
requires that a flexible appliance connector cannot exceed three
feet in length.
Install a gas valve and ground joint union in the gas line upstream
of the gas control to aid in servicing. The National Fuel Gas
Code requires installing a drip leg near the gas inlet. The drip
leg consists of a vertical length of capped pipe installed before
the gas inlet to collect condensation and foreign particles. See
Figure 5.
GAS SUPPLY PLUMBING
MANUAL
SHUT-OFF VALVE
GAS SUPPLY
INLET
1/8 NPT PLUGGED
3/8
HOLE FOR
TEST GAGE
1/2
1/2
3/4
Figure 4
TO CONTROL
3"
MINIMUM
Figure 5
41380-0-0120
VALVE