Preventive Maintenance Heating |
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Replacing your filter.
When replacing your furnace filters, use a high velocity type which are the same size as originally supplied. Filters are available from your dealer.
Where disposable filters are used, they must be a high velocity type which are the same size as originally supplied.
How to remove your filter.
WARNING: Disconnect power to the furnace unit before removing the blower door.
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 furnace filter may be secured with filter retaining brackets (as shown) or a filter retainer wire.
To replace filters, remove blower access door, push back to flex the filter and clear the filter retaining bracket at the front of the unit. Gently pull the filter out. After cleaning, replace the filter in the same manner making sure that filter is secured in place in both front and back filter retaining brackets of the unit. Replace blower access door.
A bottom return air inlet as shown features a 17" x 25" x 1" filter, (which must be trimmed to 14" x 25" x 1" for bottom usage), in the 14-1/2" wide furnace cabinets; and a 17" x 25" x 1" filter in the 17-a/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.
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For vertical UPFLOW ONLY, a left or right return air inlet as above (left side shown) requires trimming of factory supplied filter to 17" x 25" x 1" for both the 21" and 24-1/2" wide furnaces.
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Air filters may also be located outside to the furnace using s SIDE FILTER FRAME.
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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.
An upflow/horizontal furnace in horizontal return air filter application, as shown, features two 14" x 20" x 1" filters in the 14-1/2" wide furnace cabinets; or two 16" x 20" x 1" filters in the 17-1/2", 21", and 24-1/2" wide furnace cabinets.
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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 filer 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.
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.
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| Cabinet width | Filter quantity & size |
| 14-1/2" | 1 - 17" x 25" x 1" |
| 17-1/2" | 1 - 17" x 25" x 1" |
| 21" | 1- 20" x 25" x 1" |
| 24-1/2" | 1- 24" x 25" x 1" |
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| Cabinet width | Filter quantity & size |
| 14-1/2" | 1 - 14" x 25" x 1" |
| 17-1/2" | 1 - 17" x 25" x 1" |
| 21" | 1- 20" x 25" x 1" |
| 24-1/2" | 1- 24" x 25" x 1" |
Downflow/Horizontal furnaces use 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.
A downflow/horizontal furnace vertical return air filter application, as shown, features two 14" x 20" x 1" filter in the 14-1/2" wide furnace cabinets; or two 16" x 20" x 1" filter in the 17-1/2", 21", and 24-1/2" wide furnace cabinets.
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A donwflow/horizontal furnace with horizontal return air filter application, as shown, features two 14" x 20" x 1" filter in the 14-1/2" wide furnace cabinets; or two 16" x 20" x 1" filter in the 17-1/2", 21", and 24-1/2" wide furnace cabinets.
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| Cabinet width | Filter quantity & size |
| 14-1/2" | 2 - 14" x 20" x 1" |
| 17-1/2" | 2 - 16" x 20" x 1" |
| 21" | 2- 16" x 20" x 1" |
| 24-1/2" | 2- 16" x 20" x 1" |
The Problem Solver
A furnace is not a household appliance. It is complex and 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 furnace. Your dealer will be able tot 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.
Keep your furnace looking like new for years.
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.
| Problem | Possible Trouble | 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 secs. |
| Insufficient Heating - Blower operates
continuously No Heat - Vent motor is running |
1. Dirty air filters. 2. Blocked supply or return registers. Restricted or plugged furnace condensate drain. |
1. Clean or replace filters. 2. Make sure registers are open and no obstacles blocking off the air. 1. Remove drain clamps to condensate trap and drain pan outlet 2. Flush or clear drain blockage. 3. Reinstall clamps. |
| Unusual Noise | Call your servicer |
Do away with surprise repair bills with a Service Agreement
Service Agreements may be available from your Dealer or Installer. The agreement has the following advantages:
1. Established cost for service resulting from normal usage
2. No need for an unexpected service cost to "upset"
budgeted expenses
3. Includes both parts and labor for the duration of the Agreement.
Be certain you read the Agreement for complete details and exclusions.
4. Service is performed by servicers knowledgeable of the operation
of this equipment.
WARINING: This product
contains fiberglass wool insulation! Fiberglass dust and ceramic
fibers are believed by the state of California to cause cancer
through inhalation. Glasswool fibers may also cause respiratory,
shin, or eye irritation.
PRECAUTIONARY MEASURES
- Avoid breathing fiberglass dust.
- Use a NOSH approved dust/mist respirator.
- Avoid contact with the skin or eyes. Wear long-sleeved, loose fitting clothing, gloves, and eye protection.
- Wash clothes separately from other clothing; rinse washer thoroughly.
- 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 situation.
FIRST AID MEASURES
Eye Contact - Flush eyes with water to remove dust. If symptoms
persist, seek medical attention.
Skin Contact - Wash affected areas gently with soap and warm
water after handling.
Maintenance Information
Never stop the cooling system by shutting off the main power.
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 air conditioning system.
1. GENERAL INSPECTION - Examine the furnace installation for the following items:
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 inplace, slopes upward and is physically sound without holes or excessive corrosion
c. The return air duct connection9s0 is physically sound, is sealed to the furnace and terminates outside the space containing the furnace.
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.
e. There are no obvious signs of deterioration of the furnace.
WARNING: Hazardous Gases! Exposure to fuel substances or by-products of incomplete fuel combustion are believed by the State of California to cause cancer, birth defects, or other reproductive harm.
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.
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.
CAUTION: Do not touch igniter. It is extremely hot.
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.
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. 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 require. For best operation, burners must be cleaned annually using brushes and vacuum cleaner.
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.
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.
8. COOLING COIL CONDENSTATE DRAIN - 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.
9. AIR CIRCULATION - To ensure increased comfort, 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 thermostat fan switch to "ON".
WARNING: 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.
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.
In the event that electrical, fuel or mechanical failures occur, the owner should immediately turn off the gas supply at the manual gas valve located in the burner compartment and electrical power to the furnace and contact servicer.
For your safety
Furnace area must be kept clear and free of combustible materials, gasoline, and other flammable vapors and liquids.
Air for combustion and ventilation
The flow of combustion and ventilating air must not be obstructed from reaching the furnace. Air openings provided in the casing of furnace must be kept free of obstructions which would restrict airflow, thereby affecting efficiency and safe operation of your furnace.
Also, air openings provided to the area in which the furnace is installed and the space around the furnace shall not be blocked or obstructed. Keep this in mind should you choose to remodel the area which contains your furnace. Furnaces must have air for proper performance.
If additional insulation is added after the furnace is installed, the area around the furnace must be inspected to ensure it is free and clear of insulation. If this furnace is installed in an attic or other insulated space it must be kept free and clear of all insulating materials as some insulating materials are combustible.
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NOTE THE LOCATION OF THE MANUAL MAIN GAS SHUTOFF VALVE FOR YOUR FURNACE. Have your installer or servicer show you the location if you have any questions.
To Light Furnace
Lighting Instructions.
Your furnace is equipped with a hot surface direct ignition device.
WARNING: Do not attempt to manually light the furnace.
1. Please read all safety information in this book before operating furnace.
2. Set thermostat to lowest setting. Turn off all electric power to furnace.
3. Remove control access panel.
4. Turn gas cock knob on main gas valve with unit clockwise to "OFF" position. If external gas cock is used, turn to "OFF" position. Allow 5 minutes for any gas within the unit to escape. LP gas being heavier than air may require forced ventilation. If you smell gas STOP! Follow the "What To Do If You Smell Gas" instructions. If you don't smell gas, go to next step.
5. Turn gas cock knob counterclockwise to "ON" marker.
6. Replace control access panel.
7. Turn on main electrical supply and set thermostat to desired setting. Combustion blower will start and ignition device will start to heat up. After approximately 15 seconds main gas valve will open and burners will ignite.
8. When thermostat is satisfied, main burners will extinguish.
9. If main burners fail to ignite, lower thermostat setting or disconnect electrical supply, wait 5 minutes, raise thermostat setting above indicated temperature.
10. If furnace will not light, turn "OFF" all gas and electricity to unit and call servicer or gas supplier.
For complete shutdown.
Turn gas cock knob on main gas valve to "OFF" position. Disconnect electrical supply to unit.
CAUTION: If this is done during the cold weather months, provisions must be taken to prevent freeze-up of all water pipes and water receptacles.
Whenever your house is to be vacant, arrange to have someone inspect your house for proper temperature. If your furnace should fail to operate, damage could result, such as frozen water pipes.
Safety cutoff device (thermal limit).
All models are equipped with a fusible link behind gas valve. In case of main gas valve malfunction and consequent overheating, link will open and close off flow of all gas.
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Maintenance for Your Heat Pump
DANGER: Shut off electrical power before performing any maintenance to prevent serious injury from shock.
Filters
Keep your air filters clean. You may have any one of these types:
1. Glass Fiber (throwaway) - replace these when dirty. Do not clean.
2. Plastic Fiber or Foam - vacuum clean and reinstall these.
3. Aluminum Mesh - wash with detergent and water. Always recoat these per the manufacturer's instruction. They will not filter out dust and dirt without the adhesive coating.
Filters should be checked at least once a month and cleaned or replaced when needed. Replace throw away filters at least twice a year.
Lubrication
The compressor requires no oiling or other maintenance. The fan motors have prelubricated sleeve bearings and may not require attention for an indefinite period of time. However, our recommendations are as follows.
1. Motors without oiling ports - Prelubricated and sealed. No further lubrication should be required, but in case of bearing problems, the blower and the motor end bells can be disassembled and the bearings relubricated by a qualified service person.
2. Motors with oiling ports - Add from 10 to 20 drops of Electric Motor Oil or an SE grade of non-detergent SAE 10 or 20 motor oil to each bearing every two years for somewhat continuous duty, or at least every five years for light duty. Take care not to over oil, because excessive lubrication can damage the motor.
In any event, clean the indoor air blower motor periodically to prevent the possibility of overheating due to an accumulation of dust and dirt on the windings or on the motor exterior. And, as suggested elsewhere in the instructions, the air filters should be kept clean because dirty filters can restrict airflow. The indoor air blower motor depends upon sufficient air flowing across and through it to keep from overheating.
Cleanliness
Keep the outdoor coil clean and free of restrictions. Free air flow is essential. Keep fences, shrubs, snow drifts or other obstructions at least two feet from all coil air inlets.
Keep the coil free of grass clippings, weeds, leaves, etc. Turn electricity off before cleaning!
Cleaning and waxing the cabinet of the outdoor unit with automotive polish will improve its appearance and extend the life of the finish. Never use a weather cover over the outdoor unit, even if it is turned off for long periods of time. A cover will hold moisture in the unit and cause more rust buildup and damage to electrical parts than exposure to weather.
Never use your Heat pump as a stand for garden hoses or tools. Do not permit children to play near its moving parts or electrical components. Use caution with lawn mower and trimmer to avoid damaging refrigerant piping or electrical wiring.
Keep your filters clean!
Protecting Equipment from the Environment
The metal parts of this unit may be subject to rust or deterioration in adverse environmental condition. This oxidation could shorten the equipment's useful life. Salt spray, fog or mist in seacoast areas, sulphur or chlorine lawn watering systems, and various chemical contaminants from industries such as paper mills and petroleum refineries are especially corrosive.
WARNING: Disconnect all power to unit before starting maintenance!
1. Avoid having lawn sprinkler heads spray directly on the unit cabinet.
2. Frequent washing of the cabinet, fan blade and coil with fresh water will remove most of the salt or other contaminants that build up on the unit.
3. Regular cleaning and waxing of the cabinet with a good automobile polish will provide some protection.
4. A good liquid cleaner may be used several times a year to remove matter that will not wash off with water.
Several different types of protective coatings are offered in some areas. These coatings may provide some benefit, but the effectiveness of such coating materials cannot be verified by the equipment manufacturer.
The best protection is frequent cleaning, maintenance and minimal exposure to contaminants.
If you don't know which firm to call, ask if the contractor is a member of the Air Conditioning Contractors of America (ACCA). consumers can call (972)247-5383 or 1-800-260-8041 to confirm the contractor is a member or to locate a contractor who subscribes to the organization's code or ethics.
1701 North Greenville Ave. Suite 606
Richardson, Texas 75081
972-664-0055
TACL B00027067E