J952V Installation Manual

18
Bottom
Panel
Front
Brace
Door
Wiring
Harness
Screws
Blower
Assembly
Screws
Figure 16. Bottom Panel Removal
Figure 17. Alternate Removal Method
Screws
Front
Brace
Bottom
Panel
Screws
Blower
Deck
Door
GAS SUPPLY & PIPING
WARNING:
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly could
result in serious injury or property damage.
• Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
• Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the fire department.
• All gas piping must be installed in compliance with
local codes and utility regulations. In the absence of
local codes the gas line installation must comply with
the latest edition of the National Fuel Gas Code (ANSI
Z223.1) or (CAN/CGA B149.1) Installation Codes.
• Some local regulations require the installation of a
manual main shut-off valve and ground joint union
external to the furnace. The shut-off valve should be
readily accessible for service and/or emergency use.
Consult the local utility or gas supplier for additional
requirements regarding placement of the manual main
gas shut-off. See
Figure 18 (page 19).
• Per ANSI 21.47, A 1/8-inch NPT plugged tapping,
accessible for test gauge connection, must be installed
immediately upstream of the gas supply connection to
the furnace external to the cabinet. If local codes allow
the use of a flexible gas appliance connector, always
use a new listed connector. Do not use a connector
that has previously serviced another gas appliance.
• Gas piping must never run in or through air ducts,
chimneys, gas vents, or elevator shafts.
• Compounds used on threaded joints of gas piping
must be resistant to the actions of liquefied petroleum
gases.
• The main gas valve and main power disconnect to the
furnace must be properly labeled by the installer in
case emergency shutdown is required.
• Flexible gas connectors are not recommended for
this type of furnace but may be used if allowed by
local jurisdiction. Only new flexible connectors may
be used. Do not reuse old flexible gas connectors.
• A drip leg should be installed in the vertical pipe run
to the unit. See
Figure 18.