Alpine 80% SINGLE-STAGE COUNTERFLOW FURNACE Guide

You have purchased a high efficiency, gas-fired, warm-air residential furnace. It is
designed to heat your home efficiently and safely. It is also designed to interface
with your cooling equipment and to assist in circulating conditioned air.
Your furnace functions are regulated by an integrated control module which
responds to your home thermostat. This module controls all aspects of operation,
including safety and is designed to assure efficiency, reliability, and comfort.
This furnace has been designed with flexibility in mind. It can be installed in an
upright or horizontal position and uses indoor air for combustion.
Your furnace is built to provide many years of safe and dependable service,
providing it is properly installed and maintained. Take time to familiarize yourself
with the information concerning furnace installation, features, operation, and
maintenance contained within this manual.
80% SINGLE-STAGE COUNTERFLOW FURNACE
USER’SINFORMATION MANUAL
March 2003
Part No. 20371804
Printed in U.S.A.
WARNING
If the information in these instructions is not followed exactly, a fire or explosion
may result causing property damage, personal injury 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 building.
• 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.
– Installation and service must be performed by a qualified installer, service
agency or the gas supplier.

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Contents
General Information ................................................................................ 4
Unit Location .................................................................................................... 4
Unit Installation ................................................................................................. 4
Air Requirements .............................................................................................. 5
Combustion Air ................................................................................................. 5
Indoor Humidity ................................................................................................ 5
For Propane (LP) Installations Only .................................................................. 6
Furnace Operation ............................................................................................ 7
Thermostat Functions ....................................................................................... 7
General Information .......................................................................................... 7
Operating Your Furnace ......................................................................... 8
Starting Your Furnace ....................................................................................... 8
Shutting Down Your Furnace ............................................................................ 8
Safety Circuits ......................................................................................... 9
Self Diagnostic Electronic Control Module ........................................................ 9
Auxiliary Limit ................................................................................................... 9
Roll-out Limit Switches ..................................................................................... 9
Safety Circuits ....................................................................................... 10
Resetting From Lockout ................................................................................. 10
Routine Maintenance ............................................................................ 11
Annual Inspection ........................................................................................... 11
Filters ............................................................................................................. 11
Safety Labels ......................................................................................... 13
For More Information ............................................................................ 14
Remember to leave this manual with the homeowner.
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation
to know the product better than the customer.
This includes all safety precautions and related
items.
Prior to actual installation, thoroughly familiarize
yourself with this Instruction Manual. Pay special
attention to all safety warnings. Often during
installation or repair it is possible to place
yourself in a position which is more hazardous
than when the unit is in operation.
Remember, it is your responsibility to install the
product safely and to know it well enough to be able
to instruct a customer in its safe use.
Safety is a matter of common sense...a matter of
thinking before acting. Most dealers have a list of
specific good safety practices...follow them.
The precautions listed in this Installation Manual are
intended as supplemental to existing practices.
However, if there is a direct conflict between existing
practices and the content of this manual, the
precautions listed here take precedence.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

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Your warranty certificate is also supplied with the unit. Read the warranty carefully and note what
is covered. Keep the warranty certificate in a safe place, so you can find it, if necessary.
Before using this manual, check the serial plate for proper model identification.
Installer - Affix this manual, the Installation Guide, and Specifications Sheet adjacent to the
appliance.
Owner - Keep all product literature in a safe place for future reference.
THE INSTALLATION AND SERVICING OF THIS EQUIPMENT MUST BE PERFORMED BY
QUALIFIED, EXPERIENCED TECHNICIANS ONLY.
WARNING
Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the furnace
before shutting off the electrical supply.
WARNING
To avoid death, personal injury or property damage, do not use this furnace if any part of the furnace 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 having been under water.

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Unit Location
1. The furnace area and the vicinity of any other gas ap-
pliances must be kept clear and free of combustible
materials, gasoline, and other flammable vapors and
liquids. Also, do not store or use flammable items
such as paint, varnish, or lacquer in the area.
2. Do not store or use chlorine or fluorine products
(bleaches, cements, strippers, aerosols) near the unit.
They can corrode the heat exchanger.
3. Do not use the furnace closet as storage for brooms,
mops, brushes and oily rags or cloths. The area must
be kept clear, clean and free of lint. Furnace must be
kept free and clear of exposed or loose insulation ma-
terials in the area of installation. Examine the furnace
area when the furnace or additional insulation is
added since some insulation materials may be com-
bustible.
4. Make sure the furnace is always connected to an ap-
proved vent, in good condition, to carry combustion
products outdoors.
5. Familiarize yourself with the controls that shut off the
gas and electrical power to the furnace. If the furnace
is to be shut down at the end of the heating season,
turn off both the gas and electrical power. For safety,
always turn the gas and electrical power off before
performing service or maintenance on the furnace.
6. Establish a regular maintenance schedule to insure
efficient and safe operation of the furnace. The fur-
nace should be checked at the beginning of each
heating and cooling season by a qualified service
technician.
WARNING
To avoid personal injury or fire, minimum clearances
to combustible surfaces must be followed.
7. Make certain the required clearances for the furnace
are always maintained. These clearances are listed
on the Furnace Clearance Label, attached to the fur-
nace unit. If any question develops, contact the in-
staller of the furnace, or another qualified servicer.
Unit Installation
Examine the furnace installation to determine the follow-
ing:
1. All flue product carrying passages external to the fur-
nace (i.e. chimney, vent connector) are clear and free
of obstructions.
2. The vent connector is in place, slopes upward and is
physically sound without holes or excessive corro-
sion.
3. The return air duct connection is physically sound,
sealed to the furnace casing, and terminates outside
the space containing the furnace.
4. The physical support of the furnace is sound without
sagging, cracks, or gaps around the base so as to
provide a seal between the support and the base.
5. There are no obvious signs of deterioration of the fur-
nace.
6. Check the burner flames for adjustment. Flames
should be stable, soft and blue, (dust may cause or-
ange tips but must not be yellow). The flames should
extend directly outward from the burner without curl-
ing, floating, or lifting off.
WARNING
This product contains or produces a chemical or chemicals which may cause serious illness or death and which
are known to the State of California to cause cancer, birth defects or other reproductive harm.
WARNING
To avoid possible equipment damage, personal injury, fire or death, the following instructions must be observed
regarding unit location, air requirements and operating procedures.
This furnace is built to provide many years of safe and dependable service, providing it is properly installed and
maintained. However, abuse and/or improper use can shorten the life of the furnace and create hazards for you, the
homeowner.
General Information

5
General Information
Check the burner flames for:
1. Good adjustment
2. Stable, soft and blue
3. Not curling, floating, or lifting off.
Burner
Air Requirements
WARNING
To avoid death, personal injury or property damage,
enough fresh air for proper combustion and
ventilation of flue gases must be provided to this
furnace. Most homes require outside air to be
supplied into the furnace area.
Improved construction and additional insulation in homes
have reduced the heat loss and made these homes
much tighter around doors and windows so that air
infiltration is minimal. This creates a problem to supply
ventilation and/or combustion air for gas fired or other
fuel burning appliances. Any use of appliances that pull
air out of the house (clothes dryers, exhaust fans,
fireplaces, water heaters, non-direct vent furnaces, etc.)
increases this problem and appliances could be starving
for air.
If fuel-burning appliances are starved for air, the flue
gases which these appliances produce as they operate
may not vent outdoors properly, but remain in the home
instead. These flue gases may include carbon monoxide.
WARNING
Death or personal injury from asphyxiation can result
from exposure to carbon monoxide.
Carbon monoxide or “CO” is a colorless and odorless gas
produced when fuel is not burned completely or when the
flame does not receive sufficient oxygen.
Be aware of these air starvation signals which
indicate conditions that may result in carbon monox-
ide or that carbon monoxide may be present:
1. Headaches-Nausea-Dizziness, Flu-Like Symptoms.
2. Excessive humidity-heavily frosted windows or a
moist “clammy” feeling in the home.
3. Smoke from a fireplace will not draw up the chimney.
4. Flue gases that will not draw up the appliance vent
pipe.
Combustion Air
The air for combustion and ventilation can typically be ob-
tained from the surrounding unconfined space or lou-
vered closet door. Observe the following precautions
concerning air availability:
• When a furnace is installed in a closet and the
closet door is louvered, DO NOT OBSTRUCT
LOUVERS. Louvers must be open and clear to
provide combustion air to the furnace.
• When a furnace is installed in a confined space
within a home and the air for combustion and venti-
lation enters the space through ducts from the out-
side, be sure to routinely check the entering and
outlet (grilled) openings to verify that they are al-
ways clear and clean.
• Do not partition off a small area around the furnace
utilizing a non louvered door. This could obstruct
the combustion air from reaching the furnace.
• The combustion and ventilation air must never
come from a corrosive atmosphere.
Indoor Humidity
Relative humidity is the amount of water vapor in the air
relative to the amount the air can hold at the same
temperature. Example: At 40% relative humidity, the air
could hold 2 1/2 times as much moisture (2.5 x 40 =
100%) before becoming saturated.
The colder the air; the less moisture it can hold. As air is
warmed, its ability to hold moisture is increased.
Example: A winter day, outdoor temperature 10°F, and
relative humidity of 70%. If that air enters a home and is
warmed to 72°F the relative humidity will drop to 6%
(very dry) if no more moisture is added.

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General Information
Relative humidity is important to your health and home as
proper humidification helps reduce respiratory difficulties
and helps improve the indoor air quality.
A good relative humidity is one just high enough to barely
start condensation along the lower edges or lower
corners of the windows. More than that can be damag-
ing.
Frequent fogging or excessive condensation on inside
windows indicates the indoor humidity level is too high
for outdoor weather conditions. Damage to the building
may result if the condition persists. Condensation on
inside of storm windows indicates loose inside windows.
Adding weather-stripping to tighten inside windows
usually corrects this problem.
The following table shows the recommended maximum
indoor humidity in relationship to the outdoor tempera-
tures.
Outdoo
r
Humidit
y
Temperature Single -Paned Double-Paned
Glass Glass
+30°F 30% 50%
+20°F 20% 40%
+10°F 15% 35%
0°F 10% 30%
-10°F 5% 25%
-20°F 5% 20%
-30°F 3% 18%
For Propane (LP) Installations Only
For furnaces operating on propane, please review the fol-
lowing warnings before use.
WARNING
To avoid death, personal injury or property damage
due to explosion or fire, install a gas detecting
warning device. Since the odorant in propane gas
can be reduced by iron oxide (rust), a gas detecting
warning device is the only reliable method to detect
propane gas leaks.
WARNING
If the gas furnace is installed in a basement, an
excavated area or a confined space, it is strongly
recommended to contact a propane supplier to install
a gas detecting warning device in case of a gas leak.
• Since propane gas is heavier than air, any leaking
gas can settle in any low areas or confined
spaces.
• Propane gas odorant may fade, making the gas
undetectable except with a warning device.
WARNING
An undetected gas leak will create a danger of
explosion or fire. If the presence of gas is suspected,
follow the instructions on the front cover of this
manual. Failure to do so could result in SERIOUS
PERSONAL INJURY OR DEATH.

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Furnace Operation
In the heating mode, gas is burned and the products of
combustion are drawn through a heat exchanger by an
induced draft blower. The flue gases are then exhausted
from your home through a flue pipe system. The furnace
circulator blower passes indoor air over the heat ex-
changer and then through the conditioned space.
Thermostat Functions
This furnace requires a two-stage thermostat. A two
stage thermostat controls which firing rate is used
depending on the temperature difference between the
set point and the room temperature. If the difference is
small, the thermostat will energize the furnace on the low
stage. If the temperature difference is high, the thermo-
stat will energize the furnace on high stage. A two stage
thermostat and furnace properly used will maintain a
much tighter control of temperature than a conventional
single stage thermostat and furnace.
For optimal operation of this furnace, set the thermostat to
the temperature desired. Do not over adjust the thermostat
to turn the heat on. This will cause the high stage heat to
come on when the low stage heat could have satisfied the
demand. Setting the temperature to the desired tempera-
ture will minimize temperature fluctuations.
In addition, there are thermostats that automatically
switch from Heating to Cooling and with night setbacks.
The night set-back, or multiple set-back type, will adjust
the temperature at night or during the day when no one
is at home, saving energy and lowering fuel bills.
General Information
Fan Switch
Cool/Heat
Switch
Cool/Heat
Temperature
Control Dials
Room Temperature
Thermostat
System
Switch
Fan
Switch Action
OFF
A
UTO None
COOL AUTO System only cools, fan
cycles off and on.
COOL ON System only cools, fan
runs all the time.
HEAT AUTO System only heats, fan
cycles off and on.
HEAT ON System only heats, fan
runs all the time.
OFF ON No heating or cooling,
fan runs all the time.
Typical Thermostat
General Information
WARNING
Electrical components are contained in both
compartments. To avoid electrical shock, injury or
death, do not remove any internal compartment
covers. Contact a qualified servicer at once if an
abnormal condition is noticed.
Notice:
Do not use this furnace if any part has been under water.
Immediately call a qualified servicer to inspect the
furnace and to replace any part of the control system and
any gas control which has been under water.
Keep both doors in place except for inspection and
maintenance. An interlock switch prevents furnace
operation if the blower door is not in place.
Dehumidistat
The dehumidistat (not included in furnace) controls
excessive humidity in the home. To operate, set the
dehumidistat to the desired relative humidity level. If the
cooling system is wired to the furnace controls and is
running, the furnace blower will lower its speed to
improve dehumidification, if needed.
Refer to Specification Sheet for available dehumidistats
(not included in furnace).
Self Diagnostic Electronic Control Module
Certain furnace models are equipped with a self-diag-
nostic electronic control module. If a furnace component
is not operating properly, the control module will repeat-
edly flash a red light on and off in a factory-programmed
sequence, depending on the problem encountered.
If a furnace equipped with a self-diagnostic module is not
operating properly, look through the observation window
in the blower access door and make note of the number
of flashes in the sequence. Contact a qualified servicer
for further information. Do not attempt to troubleshoot the
problem yourself.
Gas Valve
The gas valve regulates gas flow to the burners in
response to input from the integrated control module.
Igniter
The furnace has an electronic ignition device which lights
the burners automatically. Never try to light the burners
by hand.
Blowers
This furnace has an induced draft blower which draws
flue products through the heat exchanger and exhaust
them outdoors. It also has a circulator or main blower
that passes indoor air over the heat exchanger and into
the conditioned space. Both blowers are permanently
lubricated, no further oiling is required.

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Operating Your Furnace
Starting Your Furnace
WARNING
Personal Injury Hazard
To avoid death, personal injury, or property damage,
do not remove any internal compartment covers.
Electrical components are contained in both
compartments. Contact a qualified servicer at once if
any abnormal condition is noticed.
To put your furnace into operation, follow the steps listed
below.
1. Close the manual gas valve external to the furnace.
2. Turn off the electrical power supply to the furnace.
3. Set room thermostat to lowest possible setting.
4. Remove the louvered door on the front of the furnace
by loosening the two screws securing the door to the
blower deck.
5. This furnace is equipped with an ignition device to au-
tomatically light the burners. Do not try to light burn-
ers by hand.
6. Push the selctor switch to "OFF".
7. Wait five minutes to clear out any gas. Then smell for
gas, including near the floor. This is important. Some
types of gas are heavier than air and the smell will be
closer to the floor.
8. If gas can be smelled following the five minute waiting
period in Step 7, follow the instructions on the front
page of this manual. If gas can not be smelled:
Push the selector switch to "ON".
9. Replace the door on the front of the furnace.
10. Open the manual gas valve external to the furnace.
11. Turn on the electrical power supply to the furnace.
12. Set the room thermostat to the desired temperature.
NOTE: There is an approximate 20 second delay between
thermostat energizing and burner firing.
Shutting Down Your Furnace
To shut down your furnace, follow the steps listed below.
1. Set the thermostat to lowest setting.
2. Turn off the electrical power supply to the furnace.
3. Remove the louvered door on the front of the furnace
by loosening the two screws securing the door to the
blower deck.
4. Push the selector switch to "OFF".
5. Close manual gas shut-off valve external to the fur-
nace.
6. Replace the door on the furnace.
Pressure Regulator
Adjustment
(Under Cap Screw)
Gas Valve
On/Off
Selector
Switch
INLET OUTLET
Inlet Pressure
Tap
Outlet Pressure
Tap
OUTLET
INLET
Pressure Regulator
Adjustment
(Under Cap Screw)
Gas Valve
On/Off
Selector
Switch
Inlet Pressure Tap
(Side of Valve) Outlet (Manifold)
Pressure Tap
White-Rodgers Gas Valves 36F22 & 36G22

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Safety Circuits
A number of safety circuits are employed to ensure safe and proper furnace operation. These circuits serve to control
any potential safety hazards and, as inputs in the monitoring and diagnosis of abnormal function. These circuits are
continuously monitored by the integrated control module.
Self Diagnostic Electronic Control Module
Certain furnace models are equipped with a self-diag-
nostic electronic control module. If a furnace component
is not operating properly, the control module will repeat-
edly flash a red light on and off in a factory-programmed
sequence, depending on the problem encountered.
If a furnace equipped with a self-diagnostic module is not
operating properly, look through the observation window
in the blower access door and make note of the number
of flashes in the sequence. Contact a qualified servicer
for further information. Do not attempt to troubleshoot the
problem yourself.
Auxiliary Limit
The auxiliary limit control is located on the blower deck
and monitors heat exchanger compartment tempera-
tures. It is a normally-closed (electrically), manual-reset,
temperature-activated sensor. This limit guards against
overheating as a result of insufficient conditioned air
passing over the heat exchanger. Disconnect electrical
power prior to removing the non-louvered door to reach
the secondary limit control. The control is in addition to
the main limit control and shuts the furnace off in case of
a blower failure. This control is a manual reset control,
which can be reset only once. If the unit goes off on limit
a second time, contact a qualified servicer so the problem
causing the control to open can be corrected.
Roll-out Limit Switches
The roll-out limit switches are normally-closed (electri-
cally), manual-reset, temperature-activated sensors. The
switches are mounted on the burner/manifold assembly
and monitors the burner flame. If there is an improper
draw of burner flames into the heat exchanger, the roll-
out limit switches will detect it and shutdown the gas
flowing to the burners,
WARNING
To avoid death, personal injury, or property damage,
due to fire or explosion, do not reset the roll-out
protection device. If it opens, the cause must be
investigated by a qualified servicer before any
attempt is made to engage the roll-out protection
device and turn the furnace back on.
Resetting From Lockout
Furnace lockout is characterized by a non-functioning
furnace (circulator blower may be running continuously).
On furnaces with a self-diagnostic electronic control
module, the control diagnostic light will repeat a single
flash followed by a pause.
Furnace lockout results when a furnace is unable to
achieve ignition after three attempts, or when it has lost
flame five times during a single call for heat. When this
occurs, it is possible to reset the control by turning the
thermostat setting below room temperature for one to
twenty seconds then returning the setting to the desired
temperature. The control will automatically reset after
one hour. The control may also be reset after a lockout
by turning off the electrical disconnect switch to the
furnace for one to twenty seconds.
IMPORTANT: If the condition which originally caused the
lockout still exists, the control will return to lockout. If
your furnace frequently locks out, a problem exists which
must be corrected. Contact a qualified servicer.
Flame Roll-out
Protection Devices
Roll-out Protection Devices

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If filter replacement becomes necessary, it must be
replaced with a filter of the same type and size that
complies with UL900 or CAN/ULC-S111 standards.
See the Specification Sheet for filter sizes.
WARNING
PERSONAL INJURY HAZARD
To avoid death or personal injury due to electrical
shock, disconnect the electrical power before
removing filters or performing any maintenance.
Filters must be inspected, cleaned or changed every two
months or as required. It is the owner's responsibility to
keep air filters clean. NOTE: Dirty filters are the most
common cause of inadequate heating or cooling perfor-
mance.
Upflow Filters (Not Included With Furnace)
To remove the external upflow filter from the external
filter rack, disconnect electrical power to the furnace and
follow the directions provided with the external filter rack
kit.
NOTE: If using Media Air Cleaner MAC1 or Electronic Air
Cleaner EAC6, follow the directions that came with the air
cleaner for proper filter removal, cleaning, and replace-
ment procedures.
Remove the blower compartment. Using a vacuum
cleaner, clean out the blower area, external filter rack
area, and the adjacent area of the return air duct.
Annual Inspection
The furnace should be inspected by a qualified installer,
or service agency at least once per year. This check
should be performed at the beginning of the heating
season. This will ensure that all furnace components are
in proper working order and that the heating system
functions appropriately. Particular attention should be
paid to the following items. Repair as necessary.
• Flue pipe system. Check for any corrosion of the
flue pipe. If significant corrosion exists, have flue
pipe replaced.
• Wiring. Check electrical connections for tightness
and/or corrosion. Check wires for damage.
• Filters. Check that filters are clean and in the
proper placement in the furnace or duct system.
Filters
WARNING
To avoid death, personal injury or property damage,
never operate furnace without a filter installed. Dust
and lint will build up on internal parts resulting in loss
of efficiency, equipment damage and possible fire.
Even though a return air filter is not supplied with this
furnace, the return air must be filtered. The installer must
supply filters at the time of installation. Become familiar
with filter location and procedures for removing, cleaning
and replacing them. If needing help, contact the installer
of the furnace or another qualified servicer.
Routine Maintenance
If you perform maintenance on the furnace yourself, remember that certain mechanical and electrical knowledge, skills
and tools are required to perform maintenance on the furnace. Personal injury or death may result if you are not
properly trained. You should call your installing dealer or place of purchase if you are uncertain about your ability to
perform maintenance.
WARNING
To avoid death or personal injury due to electrical shock, disconnect the electrical power before performing any
maintenance.

11
Counterflow Filters (Not Included With Furnace)
The furnace-mounted filter rack includes a rack mounted
on the top of the furnace. Two filters fit into the rack and
rest against the sides of the return air plenum, forming a
“V” above the furnace.
FILTER
FILTER
ACCESS
DOOR
RETURN
DUCT
FILTER
Counterflow Furnace Mounted Filter Rack
Remember dirty filters are the most common cause of
inadequate heating or cooling performance.
The filters should be inspected and cleaned or changed
every two months or as required. In some installations,
the filters can be inspected and cleaned or changed after
disconnecting the electrical power and removing the
optional access door in the return air plenum. If the
installation does not have an access door proceed as
follows:
1. Disconnect the electrical power.
2. Remove the upper door from the furnace.
3. Remove the left filter first by reaching to the left side of
the blower, pushing the filter up slightly to remove it
from the filter rack. Then carefully pull the filter down
past the left side of the blower housing. Be careful not
to dislodge any trapped dirt or debris from the filter.
4. Remove the right filter by reaching to the left side of
the blower. Lift filter up slightly to remove it from the fil-
ter rack. Move the filter to the left side of the return air
plenum, and down past the left side of the blower
housing. Be careful not to dislodge any trapped dirt or
debris from the filter.
a. Some installations will have two throwaway filters.
If dirty, these filters must be thrown away and
replaced with two new similar size throwaway
filters.
b. Other installations will have two permanent filters.
Wash, rinse and dry dirty permanent filters. After
cleaning, both sides should be sprayed with a filter
adhesive (available in hardware stores) as in-
structed on the adhesive container.
When badly torn or uncleanable, permanent filters
must be replaced with permanent filters of the
same type and size.
Routine Maintenance
5. To reinstall the filters, first MAKE CERTAIN THE AIR-
FLOW DIRECTION ARROW POINTS TOWARDS THE
FURNACE. Then insert the filters from the left side of
the blower. Starting with the right filter, push the filter
into the plenum so that the bottom of the filter rests in
the filter rack and the upper edge rests against the
side of the plenum. Repeat with the left filter (Figure
8).
6. Replace the air circulation blower door, then reconnect
the electrical power.
Horizontal Filters (Not Included With Furnace)
For furnaces installed horizontally, filters must be in-
stalled external to the furnace casing. A central return
with filters installed in the duct behind the return grille
may be used. This would simplify filter replacement by
merely requiring the removal of the grille. Clean or replace
filters every two months or as required. Dirty filters are the
most common cause of inadequate heating or cooling
performance.
Induced Draft Motor Lubrication
The induced draft motor bearings are permanently lubri-
cated. No further lubrication is required.
Air Circulating Blower Motor Lubrication
The air circulation blower motor bearings are permanently
lubricated. No further lubrication is required.

12
For Additional Information
MODEL NUMBER: _ _ _ _ _ _ _ _ _ _ _
MANUFACTURING NUMBER: P _ _ _ _ _ _ _F
SERIAL NUMBER: _ _ _ _ _ _ _ _ _ _
To obtain the proper labels, the Model, Manufacturing Number and Serial Number of
the unit must be supplied. These numbers are recorded on the nameplate of the
furnace. For convenience, record this information here: