18
139435_A GZ
455
DV 8/28/12
6.3 Connecting the Gas Supply
Gas Supply Requirements
ALL INSTALLATIONS MUST COMPLY WITH LOCAL CODE
OR IN THE ABSENCE OF LOCAL CODE, MUST COMPLY WITH
THE MOST RECENT EDITION OF THE NATIONAL FUEL GAS
CODE ANSI Z223.1/NFPA 54 OR CAN-B149.
Shut-off Valve
A shut-off valve must be installed upstream of the
gas control valve. This allows for the disconnection of the
fireplace for servicing and maintenance. See Fig. 6.3.
The fireplace and gas control valve must be disconnected
from the gas supply piping during any pressure testing of
the system at test pressures in excess of 1/2 psig. For pres
-
sures lower than 1/2 psig, isolate the gas supply by closing
the manual shut-off valve.
Control Valve Connection
The gas supply line connection to the elbow above
the shut-off valve is made through the inlet in the left
side of the fireplace. The gas supply line should be a
minimum 3/8” inside diameter, or the appropriate size to
provide sufficient gas pressure to the valve regardless of
the input setting.
The use of flexible gas appliance connectors is accept-
able in many areas in the U.S. In Canada, methods vary
depending on local code. If local codes permit, use flex-
ible gas line for ease of installation and service. For those
locales where flexible gas lines are not permitted, use a
3/8” iron fitting.
Secure all joints tightly using appropriate tools and
sealing compounds (for propane units, be sure to use
compounds that are propane resistant). Turn on gas
supply and test for gas leaks using a leak test solution or
electronic gas sensor.
A T-HANDLE GAS SHUT-OFF VALVE IS
REQUIRED TO BE INSTALLED IN THE COMMON
-
WEALTH OF MASSACHUSETTS IN COMPLIANCE
WITH CODE
248CMR.
THIS PRODUCT MUST BE INSTALLED BY A
LICENSED MASTER OR JOURNEYMAN PLUMBER
OR GAS-FITTER WHEN INSTALLED IN THE
COMMONWEALTH OF MASSACHUSETTS.
Figure 6.3.
Typical gas supply fittings.
Liquid Leak Test
• Use a leak test solution available from any HVAC
supplier.
Do not use soap solutions as they may
contain caustic chemicals which themselves can
cause leaks.
• Light appliance - see lighting instructions on the
back cover of this manual or on the rating plate.
• Brush or spray all joints and connections with the
test solution.
• If bubbles appear at any connection or seam or a
gas odor is detected, immediately turn gas control
knob to the OFF position.
• Tighten or reconnect the leaking joint and retest
for any gas leaks.
NEVER USE AN OPEN FLAME TO CHECK FOR GAS
LEAKS.
ALWAYS REFER TO THE LIGHTING INSTRUCTIONS ON
THE INSIDE BACK COVER OF THIS MANUAL WHEN
LIGHTING THE FIREPLACE.
