Desa (V)368ST - Manual (Page 12)

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Figure 28 - Gas Line Knockout
Side
Firebrick
Finished
Side
Refractory
Knockout
Plug
Outside of
Fireplace
Gas Line
Conduit
Insulation
Gas
Conduit
Cover
1/2" Dowel
Remove
Knockout
WARNING: A qualified ser-
vice person must connect gas
supply. Follow all local codes.
NOTICE: Before you proceed, make sure your
gas supply is turned off.
A gas line may be installed for the purpose
of installing a vented or vent-free decorative
gas appliance available through your local
distributor. Use only 1/2" black iron pipe and
appropriate fittings. When installing a gas
line, a shutoff valve designed for installation
outside the appliance is recommended.
1. Remove knockout indentation on refrac-
tory or firebrick wall located approximately
2" above the refractory hearth floor. The
knockout indentation must be firmly
tapped with any solid object such as a
1/2" dowel until it is released. Remove
fragmented portions of refractory (see
Figure 28).
2. Remove gas line cover plate located on
rear of fireplace and pull out insulation
from gas line conduit sleeve. Save insula-
tion for reuse.
3. Run 1/2" black iron gas line into the firebox
through the rear at 11 1 /
4
" from floor and
through gas line conduit sleeve (if using
a raised platform, add height). Provide
sufficient gas line into firebox chamber
for fitting connection (see Figure 29).
Note: Secure incoming gas line to wood
framing to provide rigidity for threaded end.
4. Repack insulation around gas line and into
sleeve opening. Seal any gaps between
gas line and refractory knockout hole with
refractory cement or commercial furnace
cement, Install the gas appliance or cap
off gas line if desired.
Seal
Opening
with
Refractory
Cement
Outside of
Fireplace
Gas
Line
Conduit
Repack
Insulation
Incoming
1/2" Black
Iron Pipe
Side
Firebrick
Finished
Side
Provide Enough Threaded
End for Fitting Connection
Figure 29 - Gas Line Installation
oPTionAL gAS Line inSTALLATion
CAUTION: All gas piping
and connections must be tested
for leaks after the installation
is completed. After ensuring
that the gas valve is on, apply
soap and water solution to all
connections and joints. Bubbles
forming show a leak. Correct
all leaks at once. DO NOT USE
AN OPEN FLAME FOR LEAK
TESTING AND DO NOT OPER-
ATE ANY APPLIANCE IF A LEAK
IS DETECTED. LEAK TESTING
ShOULD BE DONE BY A QUALI-
FIED SERVICE PERSON.
The gas pipe is intended for connection to
an unvented gas log set or a decorative gas
appliance.
If using an unvented gas log set, ONLY
UNVENTED GAS LOG SETS WHICH HAVE
BEEN FOUND TO COMPLY WITH THE
STANDARDS FOR UNVENTED ROOM
HEATERS, ANS/IAS/AGA Z21.11.2, ARE TO
BE INSTALLED IN THIS FIREBOX.
If installing a decorative gas appliance, the
decorative gas appliance must comply with
the Standard for Decorative Gas Appliances
for Installation in Solid Fuel Burning Fire-
places, ANS Z21.60-1996 and shall also be
installed in accordance with the National Fuel
Gas code, ANS Z223.1-1996.