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Indoor-Fan Motor, Outdoor-Fan Motor, and
Combustion Fan Motor —
Lubrication is not recom-
mended. Bearings will not require lubrication for at least
5 years of normal operation. After 5 years, motor life can be
extended by having the motors serviced at an authorized motor
service shop.
Fan Shaft Bearings — The bearings should be greased
with Shell Alvania no. 2 grease or equivalent. The bearings
will need to be greased annually, dependent on fan usage. Do
not grease more than once a year.
Evaporator and Condenser Coils — Cleaning of
the coils should be done by qualified service personnel.
Contact your dealer for the required annual maintenance.
Condensate Drain — The drain pan and condensate
drain line should be checked and cleaned at the same time the
cooling coils are checked by your dealer.
Compressor — All compressors are factory supplied with
a normal charge of the correct type of refrigeration-grade oil in
them and should not require additional oil.
Condenser Fan
The fan must be kept free of all obstructions to ensure prop-
er cooling. Contact your dealer for any required service.
Electrical Controls and Wiring — Electrical con-
trols are difficult to check without proper instrumentation. If
there are any discrepancies in the operating cycle, contact your
dealer and request service.
Refrigerant Circuit — The refrigerant circuit is difficult
to check for leaks without the proper equipment. If inadequate
cooling is suspected, contact your local dealer for service.
Combustion Area and Vent System — The com-
bustion area and vent system should be visually inspected be-
fore each heating season. The normal accumulation of dirt,
soot, rust, and scale can result in loss of efficiency and im-
proper performance if allowed to build up.
See Fig. 1 and 2 and proceed as follows to inspect the com-
bustion area and power-venting system of your unit.
1. Turn off gas supply to your unit.
2. Turn off electrical power to your unit.
3. Remove gas section access panels.
4. Using a flashlight, carefully inspect the burner areas for
dirt, soot, rust, or scale.
5. When you have completed your inspection, follow the To
Light Unit section in this manual to restore your unit to
operation.
6. Observe unit heating operation. Watch the burner flame
to see if it is bright blue. If you observe a suspected mal-
function or if the flame is not bright blue, call your dealer.
7. Replace gas section access panels.
Unit Panels — After performing any maintenance or
service on the unit, be sure all panels are securely fastened in
place to prevent rain from entering unit cabinet and to prevent
disruption of the correct unit airflow pattern.
REGULAR DEALER MAINTENANCE
In addition to the type of routine maintenance you might be
willing to perform, your unit should be inspected regularly by a
properly trained service technician. An inspection (preferably
each year, but at least every other year) should include the
following:
1. Inspection of all flue product passages — including the
burners, heat exchanger, and flue collector box.
2. Inspection of all combustion and ventilation-air passages
and openings.
3. Close inspection of all gas pipes leading to and inside
your unit.
4. Inspection and if required, cleaning of the condenser and
evaporator coils.
5. Inspection and if required, cleaning of the condensate
drain pan.
6. Inspection and cleaning of blower wheel housing and
motor.
7. Inspection of all supply and return-air ducts for leaks, ob-
structions, and insulation integrity. Any problems found
should be resolved at the time of inspection.
8. Inspection of the unit base for cracks, gaps, etc., which
may cause a hazardous condition.
9. Inspection of the unit casing for signs of deterioration.
10. Inspection of all electrical wiring and components to
ensure proper connection.
11. Inspection for leaks in the refrigerant circuit. Pressure-
check to determine appropriate refrigerant charge.
12. Inspection of fan wheels and housings, belt tension, and
fan motor shaft bearings.
13. Operational check of the unit to determine working
conditions. Repair or adjustment should be made at the
time of inspection.
Your servicing dealer may offer an economical service con-
tract that covers seasonal inspections. Ask for further details.
Complete service instructions can be found in the unit
Controls, Start-Up, Operation, Service and Troubleshooting
literature.
WARNING
Do not poke sticks, screwdrivers, or any other object into
revolving fan blades. Severe bodily injury may result.
CAUTION
If your unit makes any unusual or especially loud noises
during heating, shut down the heating section and call your
dealer.
CAUTION
If dirt, soot, rust, or scale accumulations are found, call
your dealer and do not operate your heating section.
WARNING
Components in heat section may be hot after unit has been
started. When observing flame, be careful not to get close
to or touch heating components. Serious personal injury
may result.