Owner`s manual
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
ORINTHEABSENCEOFLOCALCODE,MUSTCOMPLYWITH
THE MOST RECENT EDITION OF THE NATIONAL FUEL GAS
CODEANSIZ223.1/NFPA54ORCAN-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
thesystemattestpressuresinexcessof1/2psig.Forpres-
sureslowerthan1/2psig,isolatethegassupplybyclosing
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
minimum3/8”insidediameter,ortheappropriatesizeto
provide sufficient gas pressure to the valve regardless of
the input setting.
The use of flexible gas appliance connectors is accept-
ableinmanyareasintheU.S.InCanada,methodsvary
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”ironfitting.
Securealljointstightlyusingappropriatetoolsand
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
REQUIREDTOBEINSTALLEDINTHECOMMON-
WEALTH OF MASSACHUSETTS IN COMPLIANCE
WITH CODE 248CMR.
THISPRODUCTMUSTBEINSTALLEDBYA
LICENSEDMASTERORJOURNEYMANPLUMBER
OR GAS-FITTER WHEN INSTALLED IN THE
COMMONWEALTH OF MASSACHUSETTS.
Figure 6.3.
Typical gas supply fittings.
Liquid Leak Test
• UsealeaktestsolutionavailablefromanyHVAC
supplier. Do not use soap solutions as they may
containcausticchemicalswhichthemselvescan
cause leaks.
• Lightappliance-seelightinginstructionsonthe
back cover of this manual or on the rating plate.
• Brushorsprayalljointsandconnectionswiththe
test solution.
• Ifbubblesappearatanyconnectionorseamora
gas odor is detected, immediately turn gas control
knob to the OFF position.
• Tightenorreconnecttheleakingjointandretest
for any gas leaks.
NEVER USE AN OPEN FLAME TO CHECK FOR GAS
LEAKS.
ALWAYS REFER TO THE LIGHTING INSTRUCTIONS ON
THEINSIDEBACKCOVEROFTHISMANUALWHEN
LIGHTING THE FIREPLACE.