Hearthstone Quality Home Heating Products, Inc.
Bristol DX Model 8763
19
Gas Supply & Connections
Connection Location
The gas supply connection is made to the Bristol
’s
gas control valve under the bottom right center of the
unit using a 3/8” male NPT fitting. The supply line
should be ½” diameter, or appropriately sized to
provide a sufficient gas supply to meet the maximum
demand of the unit without undue loss of pressure.
We recommend a flexible line to avoid undue
mechanical load on the valve and to ease thread
alignment, but refer to local codes.
The Bristol is factory equipped to use natural gas
(NG) and requires conversion for use with propane
(LP). A propane (LP) fuel conversion kit is included
with your stove purchase.
Gas Supply
This appliance and its individual shutoff valve must be
disconnected from the gas supply piping system
during any pressure testing of that system at test
pressures in excess of ½ psig. The Bristol must be
isolated from the gas supply piping system by closing
its individual manual shutoff valve
during any
pressure testing of the gas supply piping system at
test pressures equal to or greater than ½ psig. Over
pressurizing can damage the control resulting in
leakage or control malfunction.
NOTICE:
A
QUALIFIED
TECHNICIAN
MUST
CONNECT THE HEATER TO THE GAS SUPPLY
AND LEAK TEST THE UNIT BEFORE
IT IS
APPROVED FOR USE. CONSULT ALL CODES.
WARNING: THE UNIT MUST BE INSTALLED AND
CONNECTED
IN ACCORDANCE
WITH LOCAL
CODES, OR IN THE ABSENCE OF LOCAL CODES,
WITH THE MOST CURRENT EDITION OF THE
NATIONAL FUEL GAS CODE ANSI Z223.1 (NFPA
54) OR CAN/CGA B149 INSTALLATION CODE.
INSTALLER L'APPAREIL SELON LES CODES OU
RÈGLEMENTS LOCAUX, OU, EN L'ABSENCE DE
TELS
RÈGLEMENTS,
SELON
LES
CODES
D'INSTALLATION CAN/CGA-B149
NFPA Code and Hearthstone require the use of a
dedicated sediment trap just upstream of the unit.
Damage to the valve, or other components due to
the lack of a sediment trap are not covered by
warranty
(see figure 14)
.
High Altitude Installations
For high altitude installations consult the local gas
distributer or the authority having jurisdiction for
proper rating methods.
The decreased atmospheric pressure at higher
altitudes affects the heat value of fuel gases. Gas
suppliers typically de-rate the gas intended for use at
elevations above 2000 feet (610 meters). This is not
necessary with the Bristol. If necessary, increase
valve outlet pressure to compensate.
WARNINGS
•
Fire or Explosion Hazard. Can cause property
damage, severe injury,
or
death. Do NOT bend
tubing at gas valve connection point after
compression fitting has been tightened. This
can result in gas leakage at the connection.
•
Use new properly prepared pipe free from metal
or material chips. When tubing is used, assure
that ends are square, de-burred and clean. All
tubing bends must be smooth and free of
distortion.
•
Do NOT over tighten connections.
Over tightening can damage the control body
resulting in leakage or control malfunction.
•
Do NOT remove screws from the gas valve
.
Do
NOT adjust and/or alter any components
marked with tamper indicating paint. Motor
knob is not to be removed.
•
Turn off gas supply at the appliance service
valve before starting installation, and perform a
Gas Leak Test after the installation is complete.
•
Install the sediment trap (where required) in the
gas supply line to prevent contamination of the
gas valve (
see figure 14
).
•
Use only your hand to push in or turn, the
gas Control knobs. Never use tools. If a
knob will not push in or turn by hand, do
NOT try to repair it. Call a qualified service
technician. Force or attempted repair will
void warranty and can result in a fire or
explosion.
