Valcourt L48, Инструкция по установке и руководство пользователя, Страница: 22 / 84

Page 22 Installation Instructions and Owner’s Manual - L48
ENGLISH
GAS SUPPLY
The gas pipeline can be brought in through the
right side of the fireplace. Consult the current
National Fuel Gas Code, ANSI Z223.1 CAN/
CGA-B149 (.1 or .2) installation code.
Recommended Gas Pipe Diameter
Pipe
Length
(in feet)
Schedule 40
Pipe Inside
Diameter
Tubing, Type
L Outside
Diameter
Natural Propane Natural Propane
0-10 1/2" 3/8" 1/2" 3/8"
10-40 1/2" 1/2" 5/8" 1/2"
40-100 1/2" 1/2" 3/4" 1/2"
100-150 3/4" 1/2" 7/8" 3/4"
NOTICE: Never use plastic pipe. Check to
confirm whether your local codes allow copper
tubing or galvanized.
NOTICE: Since some municipalities have
additional local codes, it is always best to
consult your local authority and installation
code.
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.
Figure 26
Gas Supply Pressure
(inches w.c.)
Minimum Normal Maximum
Natural Gas 4.5 7.0 14.0
Propane Gas 10.8 11.0 14.0
Manifold Pressure
(inches w.c.)
Normal (HI)
Natural Gas 3.5
Propane Gas 10.0
A gas valve and ground joint union should be
installed in the gas line upstream of the gas
control to aid in servicing. It is required by
the National Fuel Gas Code that a drip leg be
installed near the gas inlet. See
«Figure 27» .
This should consist of a vertical length of pipe
tee connected into the gas line that is capped
on the bottom in which condensation and
foreign particles may collect.
Figure 27