User's Information Guide
Condensing Gas Furnaces
Fan Assisted Combustion System
Upflow / Horizontal and Downflow / Horizontal
If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal in-
jury or loss of life.
— 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 build-
Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
If you cannot reach your gas sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier.
WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury
or property damage. Refer to the installation in-
structions provided with the furnace and this
manual. For assistance or additional information
consult a qualified installer, service agency or the
This information is intended for use by individuals pos-
sessing adequate backgrounds of electrical and mechani-
cal experience. Any attempt to repair a central air condi-
tioning product may result in personal injury and/or prop-
erty damage. American Standard Inc. or seller cannot be
responsible for the interpretation of this information, nor
can it assume any liability in connection with its use.
Understand the signal words DANGER, WARNING, AND
CAUTION. These words are safety alert words. DANGER
indicates the most serious hazards which will result in
severe personal injury or death. WARNING indicates
hazards which could result in personal injury or death.
© American Standard Inc. 2001
CAUTION is used to indicate unsafe practices which could
result in minor injury or property damage.
There must be a free flow of fresh air sufficient for efficient
combustion and safe ventilation of your furnace. Do not
allow the louvers on the front panels of your furnace to
become blocked as this will restrict the flow of fresh air.
The combustion air for your furnace must be fresh uncon-
taminated air. Paints, varnishes, laundry bleaches, deter-
gents, many household cleaners, water softening salts,
adhesives, and all such products release fumes containing
compounds which could lead to early heat exchanger and
vent system deterioration. Do not store these type of
products near your furnace and consider fresh air for your
furnace during construction or remodeling.
Never store gasoline, combustible materials, or other
flammable liquids or vapors near your furnace.
If you have a problem, check the "Problem Solver" section
of this manual before you call for a possibly unneeded
Parts and controls of this furnace are unique. Should
service or modification be required, be sure your servicer
uses only factory authorized parts, kits, or accessories for
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous op-
HIGH VOLTAGE ELECTRICAL COMPONENTS, FAST MOVING FANS,
AND COMBUSTIBLE GAS. FOR PROTECTION FROM THESE
INHERENT HAZARDS DURING INSTALLATION AND SERVICING,
THE ELECTRICAL SUPPLY MUST BE DISCONNECTED AND THE
MAIN GAS VALVE MUST BE TURNED OFF. IF OPERATING CHECKS
MUST BE PERFORMED WITH THE UNIT OPERATING, IT IS THE
TECHNICIANS RESPONSIBILTY TO RECOGNIZE THESE HAZARDS
AND PROCEED SAFELY.
ANY PART HAS BEEN UNDER WATER. IMMEDIATELY
CALL A QUALIFIED SERVICE TECHNICIAN TO
INSPECT THE FURNACE AND TO REPLACE ANY
PART OF THE CONTROL SYSTEM AND ANY GAS
CONTROL WHICH HAS BEEN UNDER WATER.
BODILY INJURY CAN RESULT FROM
DO NOT USE THIS UNIT IF
Pub. No. 32-5022-10