FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could
result in serious injury, death or property damage.
Improper servicing could result in dangerous opera-
tion, serious injury, death, or property damage.
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.
Safety signal words are used to designate a degree or
level of seriousness associated with a particular hazard.
The signal words for safety markings are DANGER,
WARNING, and CAUTION.
a. DANGER indicates an imminently hazardous
situation which, if not avoided, will result in death
or serious injury. This signal word is limited to the
most extreme situations.
b. WARNING indicates a potentially hazardous situa-
tion which, if not avoided, could result in death or
CAUTION indicates a potentially hazardous situa-
tion which, if not avoided, may result in minor or
moderate injury. It is also used to alert against
unsafe practices and hazards involving only prop-
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
These furnaces are not approved or intended for
installation in manufactured (mobile) housing, trailers,
or recreational vehicles. Failure to follow this warning
could result in property damage, personal injury, or
Do not touch igniter. It is extremely hot. Failure to
follow this warning could result in severe burns, other
injury, property damage, or death.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dan-
Verify proper operation after servicing.
CARBON MONOXIDE POISONING HAZARD
Failure to follow the installation and operation instruc-
tions for the venting system's operation could result in
carbon monoxide poisoning or death.
Pub. No. 32-5034-02