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GAS SUPPLY
The gas pipeline can be brought in through the right or left side of
the fireplace. The fireplace has a Flexline located on the left side
when facing the fireplace. See Figures 14 and 15. Consult the
current National Fuel Gas Code, ANSI Z223.1 CAN/CGA-B149
(.1 or .2) installation code.
Recommended Gas Pipe Diameter
Pipe Length
(Dimensions
in feet)
Schedule 40 Pipe
Inside Diameter
Tubing, Type L
Outside Diameter
(Dimensions in Inches)
Nat.
L.P.
Nat.
L.P.
0-10
1/2
3/8
1/2
3/8
11-40
1/2
1/2
5/8
1/2
41-100
1/2
1/2
3/4
1/2
101-150
3/4
1/2
7/8
3/4
Caution
:
Never use plastic pipe. Check to confirm whether your
local codes allow copper or galvanized tubing.
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 Fireplace Connectors of Corrugated Metal
Tubing and Fittings.
— ANSI Z21.45 Assembled Flexible Fireplace Connectors of
Other Than All-Metal Construction
The above connectors may be used if acceptable by the authority
having jurisdiction. The state of Massachusetts requires that a
flexible fireplace connector cannot exceed three feet in length.
Figure 13
Installing the Main Gas Shut-Off
Each fireplace should have its own manual gas shut-off.
A manual main gas shut-off should be located in the vicinity of
the fireplace and can be easily accessed after assembly. Where
none exists, or where its size or location is not adequate, contact
your local authorized installer for installation or relocation.
Compounds used on threaded joints of gas piping shall be
resistant to the action of liquefied petroleum gases. The gas lines
must be checked for leaks by the installer. Testing for leaks on all
exposed connections should be done with leak test solution or
a soap solution. After testing is complete, all solution should be
cleaned off. On unexposed connections, a pressure test should
be made.
Never use an exposed flame to check for leaks. Fireplace must
be disconnected from piping at inlet of control valve and pipe
capped or plugged for pressure test. Never pressure test with
fireplace connected; control valve will sustain damage.
Notice:
The gas controls are equipped with a captured screw-
type pressure test point. It is not necessary to provide a 1/8-inch
test point up stream of the control.
When using copper or flex connector use only approved fittings.
The fireplace and its individual shut-off valve must be
disconnected from supply piping system during any pressure
testing of that system at test pressures in excess of 1/2 psig
(3.5kPa).
The fireplace must be isolated from the gas supply piping
system by closing its individual manual shut-off valve during any
pressure testing of the gas supply piping system at test pressures
equal to or less than 1/2 psig (3.5kPa).
WARNING
If one of the procedures results in pressures in excess of
1/2 psig (14 inches w.c.) (3.5 kPa) on the fireplace gas valve, it
will result in a hazardous condition.
Figure 14
Shut-off valve must be accessible after installation.
A gas valve and ground joint union should be installed in the gas
line upstream of the gas control to aid in servicing. The National
Fuel Gas Code requires that a drip leg be installed near the gas
inlet. See Figure 15
.
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.
GAS SUPPLY PLUMBING
MANUAL
SHUT-OFF VALVE
GAS SUPPLY
INLET
DRIP LEG
3” MINIMUM
TO CONTROL
VALVE
Figure 15
TEE HANDLE
FLEX TUBING
FLARE FITTING
FLEXIBLE GAS LINE CONNECTION
GAS SUPPLY
FRONT OF
FIREPLACE
LEFT SIDE
OF FIREPLACE
GAS FLEX LINE
Содержание VFLL60FP72LN-1
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