Owner's Guide
Indoor Units:
Air Handlers
Gas Furnaces
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The Problem Solver – Air Handlers
Before you call for service, check the following:
Problem
Possible cause
Possible Remedy
Insufficient heating or cooling
1. Dirty filters
2. Air not circulating freely
3. Blocked outdoor coil
1. Clean or replace
2. Check supply registers and return grills for blockage
3. Clear away leaves or other debris
Failure to operate
Unusual Noise
1. Power off
2. Open circuit breaker or burned‑out fuses
3. Improperly adjusted thermostat
1. Make sure main switch is in on position
2. Reset circuit breaker, or replace burned‑out fuses
3. Check setting, adjust thermostat
Call your local servicer
Just set the temperature you want.
Set temperatures by using the indicators on the thermostat*
control. After that, your comfort control center (thermostat) will
maintain a constant indoor temperature, regardless of changes
in outdoor temperatures. Read your thermostat manual for
directions on setting the temperatures.
Whenever your house is to be vacant, arrange to have
someone inspect your house for proper temperature. This
is very important in below freezing weather. If for any reason
your unit should fail to operate, damage could result, such
as frozen water pipes.
Save energy with an electronic programmable thermostat.
NOTE: Improperly sized vents can cause the formation of
condensate, combustion gas leakage and spillage, and an
inoperable furnace.
With an electronic programmable thermostat* energy savings is
easy. Just program the thermostat for the temperatures you are
most comfortable with and it will automatically change settings
up to four times a day. Special weekend and vacation schedules
are also easily programmed for comfort and savings. Read your
thermostat manual for programming instructions. If you want
the optimum balance between comfort and the cost of running
your system, we recommend keeping the temperature settings
at 68°F for heating and 78°F for cooling.
This unit is not a household appliance. It is a complex
self-contained system that requires professional maintenance
and repair. That’s why attempts at do it yourself repairs on an
in-warranty unit may void the remainder of your warranty. Other
than performing the simple maintenance recommended in this
manual, you should not attempt to make any adjustments to
your system.
Save energy by letting the thermostat do its job. Once you
set the thermostat, keep subsequent adjustments to a minimum.
Adjust it only when a new program is needed.
NOTE: The blower motor bearings are factory lubricated and
under normal operating conditions usually do not require
servicing. Your local servicer can advise you if oiling is required.
Your dealer should be able to take care of any questions or
problems you may have.
*Optional accessory
Keep your unit looking like new for years.
Clean the enamel finish of your unit with ordinary soap and water.
For stubborn grease spots, use a household detergent. Lacquer
thinner or other synthetic solvents may damage the finish.
3
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Limited Warranty Information
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Safety Section – Gas Furnaces
IMPORTANT: Users MUST read all instructions in the manual. All manuals MUST be kept for future reference.
FIRE OR EXPLOSION HAZARD
EXPLOSION HAZARD
If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury
or loss of life.
In the event that electrical, fuel or mechanical failures occur,
shut off the gas supply at the manual gas shut off valve, located
on the supply gas piping coming into the furnace, before
turning off the electrical power to the furnace. Contact servicer.
— Do NOT store or use gasoline or other flammable vapors
and liquids or combustible materials in the vicinity of this or
any other appliance.
Failure to follow this warning could result in property damage,
personal injury or death.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
CARBON MONOXIDE POISONING HAZARD
• Do not touch any electrical switch; do not use any phone in
your building.
Failure to follow the installation and operation instructions for
the venting system’s operation could result in carbon monoxide
poisoning or death.
• 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.
EXPLOSION HAZARD
Should overheating occur, or the gas supply fail to shut off, shut
off the manual gas valve to the furnace before shutting off the
electrical supply.
— DO NOT RELY ON SMELL ALONE TO DETECT LEAKS.
DUE TO VARIOUS FACTORS, YOU MAY NOT BE ABLE
TO SMELL FUEL GASES.
• U.L. recognized fuel gas and CO detectors are recommended
in all applications, and their installation should be in accordance
with the manufacturer's recommendations and/or local laws,
rules, regulations, or customs.
Failure to follow this warning could result in property damage,
personal injury or death.
The following warning complies with State of California law, Proposition 65.
THIS PRODUCT CONTAINS FIBERGLASS WOOL INSULATION!
— Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
Fiberglass dust and ceramic fibers are believed by the State of
California to cause cancer through inhalation. Glasswool fibers
may also cause respiratory, skin, or eye irritation.
PRECAUTIONARY MEASURES
• Avoid breathing fiberglass dust.
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 WARNING and CAUTION.
• Use a NIOSH approved dust/mist respirator.
• Avoid contact with the skin or eyes. Wear long-sleeved,
loose-fitting clothing, gloves, and eye protection.
a. WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.
• Wash clothes separately from other clothing: rinse washer
thoroughly.
b. CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury. It is also used to alert against unsafe practices
and hazards involving only property damage.
• Operations such as sawing, blowing, tear-out, and spraying
may generate fiber concentrations requiring additional
respiratory protection. Use the appropriate NIOSH
approved respirator in these situations.
FIRST AID MEASURES
Eye Contact – Flush eyes with water to remove dust. If
symptoms persist, seek medical attention.
EXPLOSION HAZARD
Skin Contact – Wash affected areas gently with soap and
Do not use this unit if any part has been under water. A flood
damaged unit is extremely dangerous. Attempts to use the
furnace can result in fire or explosion. A qualified service
agency should be contacted to inspect the furnace and to
replace all gas controls, control system parts, electrical parts
that have been wet or the furnace if deemed necessary.
warm water after handling.
SAFETY HAZARD
Bodily injury can result from high voltage electrical components,
fast moving fans, and combustible gas. During installation and
servicing, the electrical supply must be disconnected and the
main gas valve must be turned off.
Failure to follow this warning could result in property damage,
personal injury or death.
Failure to follow this warning could result in property damage,
personal injury or death.
5
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Safety Section – Gas Furnaces
BURN HAZARD
CARBON MONOXIDE HAZARD
Do not attempt to manually light the furnace. Failure to follow
this warning could result in property damage, personal injury
or death.
For proper and safe operation of the furnace, air for combustion
and ventilation must be provided. Do not block or obstruct air
openings on the furnace, air openings to the area in which the
furnace is installed, or the space around the furnace.
Failure to follow this warning could result in property damage,
personal injury or death.
The furnace is equipped with a blocked vent shut-off system.
When the furnace vent is blocked, a pressure switch will shut
off the furnace. Call a qualified servicer.
EXPLOSION HAZARD
Should overheating occur, or the gas supply fail to shut off, shut
off the manual gas valve to the furnace before shutting off the
electrical supply.
SAFETY HAZARD
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. See regular
maintenance on page 9 for annual general inspection. For
assistance or additional information consult a qualified installer,
service agency or the gas supplier. Failure to follow this warning
could result in property damage, personal injury or death.
Failure to follow this warning could result in property damage,
personal injury or death.
If the furnace is shut down during the cold weather months,
provisions must be taken to prevent freeze-up of all water
pipes and water receptacles.
EXPLOSION HAZARD
Propane gas is heavier than air and may collect in any low areas
or confined spaces. In addition, odorant fade may make the gas
undetectable except with a warning device. If the gas furnace is
installed in a basement, an excavated area or a confined space, it
is strongly recommended to contact a gas supplier to install a gas
detecting warning device in case of a gas leak. The manufacturer
of your furnace does not test any detectors and makes no
representations regarding any brand or type of detector.
Do NOT touch igniter. It is extremely hot.
The furnace area must be kept clear and free of combustible
materials, gasoline, and other flammable vapors and liquids.
Insulating materials may be combustible. The furnace must be
kept free and clear from insulating material. Examine the area
around the furnace for insulation after installation or when
insulation is added.
Never operate your unit for either heating or cooling with
filters removed.
SAFETY HAZARD
The combustion air for your furnace must be fresh
uncontaminated air. Paints, varnishes, laundry bleaches,
detergents, 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 types of products near
your furnace.
Sharp Edge Hazard. Be careful of sharp edges on equipment
or any cuts made on sheet metal while installing or servicing.
Personal injury may result.
ELECTRIC SHOCK HAZARD
These servicing instructions are for use by qualified personnel only.
To reduce the risk of electric shock, do not perform any servicing
other than that contained in these operating instructions unless
you are qualified to do so.
For horizontally vented furnaces, the vent and inlet terminals
must be located at least 12 inches minimum (18 inches in
Canada) above normally expected snow accumulation level.
Failure to follow this warning could result in property damage,
personal injury or death.
6
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Proper Maintenance – Gas Furnaces
Air Filters
Clean the filter once a month for optimum performance. A
monthly visual inspection of the furnace is also recommended.
See General Inspection on page 9, number 1.
slid all the way into the filter rack. Replace blower access door. A
bottom return air inlet as shown features a 17" x 25" x 1" filter in
the 17-1/2" wide furnace; cabinets; a 20" x 25" x 1" filter in the 21"
wide models; and a 24" x 25" x 1" filter in the 24-1/2" wide cabinet.
NOTE: Filters are NOT included with all Furnaces, however; the
Furnace should never be run without a filter.
A clean filter saves money.
Airflow
When the furnace circulates and filters the air in your home, dust
and dirt particles build up on the filter. Excessive accumulation
can block the airflow, forcing the unit to work harder to maintain
desired temperatures.
Airflow
And the harder your unit has to work, the more energy it
uses. So you pay more any time your system is running with
a dirty filter.
Upflow Bottom Return
Upflow Side Return
For vertical UPFLOW ONLY, a left
or right return air inlet as above
(left side shown) requires
trimming of the factory supplied
filter to 17" x 25" x 1" for both the
21" and 24-1/2" wide furnaces.
Never operate your unit for either heating or cooling with
filters removed.
Help ensure top efficiency by cleaning the filter once a month.
Clean it twice a month during seasons when the unit runs
more often.
Your filter may
You can clean the filter with a
vacuum, OR you can wash it with
Air filters may also be located
outside of the furnace using a side
filter frame.
or may not be
framed.
a household detergent.
Upflow Only
NOTE: Not all aftermarket filters
can be washed with a household
detergent. See the instructions
supplied by the aftermarket filter
manufacturer.
Upflow/Horizontal Furnace Filters
The Upflow/Horizontal furnace when installed horizontally
requires a horizontal filter kit. The filters may be located remote
to the furnace or in the return air duct near the furnace. Check
with your dealer for the location of your filters.
When replacing your furnace filters, always use a high velocity
type which are the same size as originally supplied. Filters are
available from your dealer.
An upflow/horizontal furnace in horizontal return air filter
application, as shown, features two 16" x 20" x 1" filters in the
17-1/2", 21" and 24-1/2" wide furnace cabinets.
Where disposable filters are used, they must be a high velocity
type which are the same size as originally supplied.
To replace filters, remove the filter access door, lift the filter
from the lower bracket and shift the filter to the side to free the
top filter from the bracket and slide the filters out through the
filter access door. After cleaning, replace the filters in the same
manner making sure that the filters are secured in place in both
top and bottom filter brackets. Replace filter access door.
How to remove the filter from your Gas Furnace.
ELECTRIC SHOCK HAZARD
Disconnect power to unit before removing blower door. Failure
to follow this warning could result in property damage, personal
injury or death.
Upflow furnaces use a high velocity type air filter which may
be located within the furnace blower compartment in either a
BOTTOM or SIDE (left or right) return air inlet. The filter may be
secured with filter retaining brackets (as shown) or a filter rack.
To clean or replace filters, remove blower access door, slide the
filter from the filter rack or remove the filter from the retaining
brackets. After cleaning, replace the filter in the same manner,
making sure that the filter is secured in place in both the front and
back filter retaining brackets, if present, or that the filter is securely
ntal
With Filter Kit
7
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Proper Maintenance – Gas Furnaces
Air filters may also be located
outside of the furnace using a
remote filter grille. The filter grille
could be in a hallway, wall, or in the
ceiling. Check with your dealer for
the exact location of your filter and
the method of changing the filters.
A downflow/horizontal furnace return air filter application, as
shown, features two 14" x 20" x 1" filters in the 17-1/2" wide
furnace cabinets; or two 16" x 20" x 1" filters in the 21" and
24-1/2" wide furnace cabinets.
For regular dealer maintenance please refer to
Downflow/Horizontal furnaces are
factory supplied with 2 standard
size permanent type air filters
which may be located remote
to the furnace or in the return air
duct. Check with your dealer for the
location of your filters.
Downflow Filter
Downflow/Horizontal
With Filter Kit
The Problem Solver – Gas Furnaces
Before you call for service, check the following:
Problem
Possible cause
Possible Remedy
No heating –
Blower does not operate
1. Thermostat set incorrectly
2. Blown fuse or tripped circuit breaker
3. Defective component
4. Burner does not ignite
5. Main gas line turned off
6. Blower door removed or ajar
7. Lockout
1. Adjust thermostat. See operating instructions.
2. Replace or reset protective device or call for servicer
3. Most controls are automatic and will recycle. If your unit
still does not operate call for servicer.
4. Call servicer
5. Have gas company check
6. Close door securely to restore power to blower
and gas valve
7. Turn power on‑off‑on‑off twice in 30 seconds
Insufficient heating or cooling
No Heat – Vent motor is running
1. Dirty filters
2. Air not circulating freely
3. Blocked outdoor coil
1. Clean or replace
2. Check supply registers and return grills for blockage
3. Clear away leaves or other debris
1. Restricted or plugged furnace
condensate drain
1. Remove drain clamps to condensate trap
and drain pan outlet
2. Flush or clean drain blockage
3. Reinstall clamps
Unusual Noise
Call your local servicer
Other than performing the simple maintenance recommended
in this manual, you should not attempt to make any adjustments
to your furnace. Your dealer will be able to take care of any
questions or problems you may have. A periodic inspection of
your furnace should be made by a qualified service agency at
the start of each heating season.
CARBON MONOXIDE POISONING HAZARD
DO not attempt to change the venting system. Failure to
follow the installation and operation instructions for the
venting system’s operation could result in carbon monoxide
poisoning or death.
In the event that electrical, fuel, or mechanical failures occur,
immediately turn the gas supply off at the manual gas valve located
on the gas pipe leading to the furnace before turning off electrical
power to the furnace. Contact a qualified service agency.
NOTE: Improperly sized vents can cause the formation of
condensate, combustion gas leakage and spillage, and an
inoperable furnace.
Keep your furnace looking like new for years.
A furnace is not a household appliance. It is complex and
requires professional maintenance and repair. Attempts at
“do-it-yourself” repairs on an in-warranty unit may void the
remainder of your warranty.
Clean the enamel finish of your furnace with ordinary soap and
water. For stubborn grease spots, use a household detergent.
Lacquer thinner or other synthetic solvents may damage the finish.
8
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Regular Dealer Maintenance
For regular dealer maintenance please refer to
1. GENERAL INSPECTION – Examine the furnace installation
for the following items:
To ensure proper operation of your furnace, the
recommended dealer inspection is once a year, before the
heating season. Regular maintenance must be performed by
a qualified service professional.
a. All flue product carrying areas external to the furnace
(i.e. chimney, vent connector) are clear and free of
obstruction.
b. The vent connector is in place, slopes upward and is
The servicer should perform steps 1–9 once a year before
the heating season.
physically sound without holes or excessive corrosion.
c. The return air duct connection(s) is physically sound, is
sealed to the furnace and terminates outside the space
containing the furnace.
The homeowner should perform the visual inspection in step
1 monthly when cleaning the furnace filter.
Unless it is an emergency, never stop the heating system by
shutting off the main power.
d. The physical support of the furnace should be sound
without sagging, cracks, gaps, etc., around the base so
as to provide a seal between the support and the base.
If the main power to your air conditioner is ever disconnected
for more than three hours, turn off the thermostat. Then wait
for at least three more hours after the power has been restored
before turning the thermostat back on. Failure to follow this
procedure could result in damage to your furnace.
e. There are no obvious signs of deterioration of the
furnace.
f. The burner flames are in good adjustment without
erratic flames. See illustration below.
The following warning complies with State of California law, Proposition 65.
g. Fresh air inlet and vent are not blocked and free from
obstruction. The horizontal or vertical vent and inlet
must be located at least 12 inches minimum (18 inches
in Canada) above the normally expected snow
accumulation level.
HAZARDOUS GASES
Exposure to fuel substances or by-products of incomplete
fuel combustion is believed by the state of California to cause
cancer, birth defects, or other reproductive harm.
Contact your service agent if you feel you are uncomfortable
performing any of the inspections noted in section 1.
HAZARDOUS GASES
Unit is equipped with a blower door switch which cuts power
to blower and gas valve causing shutdown when door is
removed. Unit must not be altered to allow operation with the
blower door removed. Operation with doors removed or ajar
can permit the escape of dangerous fumes. All panels must be
securely closed at all times for safe operation of the furnace.
Failure to follow this warning could result in property damage,
personal injury or death.
2. BLOWERS – The blower size and speed determine
the air volume delivered by the furnace. The blower
motor bearings are factory lubricated and under normal
operating conditions usually do not require servicing.
Annual cleaning of the blower wheel and housing is
recommended for maximum air output, and this must be
performed only by a qualified servicer or service agency.
EXPLOSION HAZARD
In the event that electrical, fuel or mechanical failures occur,
SHUT off the gas supply at the manual gas SHUT OFF valve,
located ON THE SUPPLY GAS PIPING COMING INTO THE
FURNACE, BEFORE TURNING OFF THE electrical power to the
furnace. contact servicer.
FLAME
Failure to follow this warning could result in property damage,
personal injury or death.
Do NOT touch igniter. It is extremely hot.
EXPLOSION HAZARD
Should overheating occur, or the gas supply fail to shut off, shut
off the manual gas valve to the furnace before shutting off the
electrical supply.
3. IGNITER – This unit has a special hot surface direct ignition
device that automatically lights the burners. Please note
that it is very fragile and should be handled with care.
Failure to follow this warning could result in property damage,
personal injury or death.
9
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Regular Dealer Maintenance
4. BURNER – Gas burners do not normally require scheduled
servicing, however, accumulation of foreign material
may cause a yellowing flame or delayed ignition. Either
condition indicates that a service call is required. For
best operation, burners must be cleaned annually using
brushes and vacuum cleaner.
6. CIRCUIT PROTECTION – If blower or gas valve fail to
operate, the cause could be the circuit breaker or a loose
or blown fuse. Replace fuse or reset circuit breaker.
7. OPERATION – Your warm air furnace should not be
operated in a corrosive atmosphere. Paint solvents,
cleaning chemicals, spray propellants, and bleaches
should not be used in the vicinity of the furnace during
normal operation.
Turn off gas and electric power supply. To clean burners, remove
top burner bracket and lift burner from orifice.
NOTE: Be careful not to break igniter when removing burners.
8. CONDENSATE DRAINS – If you have a cooling coil installed
with your furnace, condensate drains should be checked
and cleaned periodically to assure that condensate can
drain freely from coil to drain. If condensate cannot drain
freely water damage could occur. Furnace drain should also
be checked and cleaned at the start of each heating season.
Clean burners with brush and/ or vacuum cleaner. Reassemble
parts by reversal of the above procedure.
NOTE: On LP (propane) units, some light yellow tipping of the
outer mantle is normal. Inner mantle should be bright blue.
Natural gas units should not have any yellow tipped flames.
This condition indicates that a service call is required. For best
operation, burners must be cleaned annually using brushes and
vacuum cleaner.
9. AIR CIRCULATION – To ensure increased comfort, the
blower on this unit may be operated continuously for both
heating and cooling. This will result in constantly filtered air
and aid in maintaining more even temperatures by avoiding
temperature stratification throughout the conditioned area.
To accomplish constant air circulation, set your comfort
control fan selector to “ON.” Continuous fan mode during
COOLING operation may not be appropriate in humid
climates. If the indoor air exceeds 60% relative humidity or
simply feels uncomfortably humid, it is recommended that
the fan only be used in the “AUTO” mode.
NOTE: On LP (propane) units, due to variations in BTU content
and altitude, servicing may be required at shorter intervals.
5. HEAT EXCHANGER/FLUE PIPE – These items must be
inspected for signs of corrosion, and/ or deterioration
at the beginning of each heating season by a qualified
service technician and cleaned annually for best
operation.
10
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Limited Warranty Information
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Important Product Information
Thank you for purchasing Trane home comfort products. Registering your products helps us provide you with one of the strongest
manufacturer limited warranties available. Product registration can be completed either online at Trane.com or by calling
800-554-6413. You will need the serial number, model number, and installation date for each product being registered. Your dealer
may have included these on your invoice or can provide a list for you to use. Please take a few moments to record the following
information to ensure your product registration process is quick and easy:
Air Handler/Furnace Serial Number _________________________________________________________________________________
Air Handler/Furnace Model Number ________________________________________________________________________________
Indoor Coil Serial Number _________________________________________________________________________________________
Indoor Coil Model Number ________________________________________________________________________________________
Date of Installation _______________________________________________________________________________________________
Dealer __________________________________________________________________________________________________________
Service Information
Call your installing dealer if the unit is inoperative. Before you call, always check the following to be sure service is required:
a. Be sure the main switch that supplies power to the unit is in the ON position.
b. Replace any burned-out fuses or reset circuit breakers.
c. Be sure the thermostat is properly set.
Service Phone ___________________________________________________________________________________________________
Ingersoll Rand Residential Solutions, a business comprised of well-known brands like Schlage and Trane, delivers
safety, comfort and efficiency to homeowners throughout North America. Our quality products, services and
solutions include mechanical and electronic locks, heating and air conditioning systems, indoor air quality
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