Gas Supply - Empire Comfort Systems MILLIVOLT DVCD FP3-4 Series Installation Instructions Manual

The gas pipeline can be brought in through left or right side of
the fireplace. Consult the current National Fuel Gas Code, ANSI
Z223.1 CAN/CGA-B149 (.1 or .2) installation code.
GAS LINE HOLE
(BOTH SIDES)
10"
FROM FRONT OF
FIREPLACE TO
GAS LINE HOLE
RECOMMENDED GAS PIPE DIAMETER
Schedule 40 Pipe
Inside Diameter
Pipe
Length Natural
0-10 feet 1/2
10-40 feet 1/2
40-100 feet 1/2
100-150 feet 3/4
NOTICE: Check to confirm whether your local codes allow
copper tubing or galvanized.
NOTICE: Because some municipalities have additional local
codes, consult your local authority and installation code.
Page 12

GAS SUPPLY

2"
Figure 10
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
The use of the following gas connectors is recommended:
— 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.
FLEXIBLE GAS LINE CONNECTION
FLARE FITTING
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 12.
GAS SUPPLY PIPING
SHUT-OFF VALVE
GAS SUPPLY
INLET
3/8
1/8 NPT PLUGGED HOLE
1/2
FOR TEST GAGE
1/2
3/4
TEE HANDLE
FLEX TUBING
FLARE SHUT
OFF VALVE
Figure 11
GROUND JOINT UNION
3" MINIMUM
CAP
Figure 12
GAS SUPPLY
DRIP LEG
38712-4-0920