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506109−01 10/08
1. Clean and inspect the outdoor coil. The coil may be
flushed with a water hose. Ensure the power is turned
off before you clean the coil.
2. Outdoor fan motor is pre−lubricated and sealed. No
further lubrication is needed.
3. Visually inspect connecting lines and coils for
evidence of oil leaks.
4. Check wiring for loose connections.
5. Check for correct voltage at the unit (with the unit
operating).
6. Check amperage draw outdoor fan motor.
UNIT NAMEPLATE: _________ ACTUAL: __________
NOTE − If owner reports insufficient cooling, the unit should
be gauged and refrigerant charge checked.
INDOOR COIL
1. Clean coil, if necessary.
2. Check connecting lines and coils for signs of oil leaks.
3. Check condensate line and clean, if necessary.
INDOOR UNIT
1. Clean or change filters.
2. Adjust blower speed for cooling. Measure the pressure
drop over the coil to determine the correct blower CFM.
Refer to the unit information service manual for pressure
drop tables and procedure.
3. Check blower drive belt for wear and proper tension.
4. Check all wiring for loose connections
5. Check for correct voltage at unit (blower operating).
6. Check amperage draw on blower motor.
UNIT NAMEPLATE: _________ ACTUAL: __________
Homeowner Information
MAINTENANCE
In order to ensure peak performance, your system must be
properly maintained. Clogged filters and blocked airflow
prevent your unit from operating at its most efficient level.
1.
Air Filter
Ask your Lennox dealer to show you where
your indoor unit’s filter is located. It will be either at the
indoor unit (installed internal or external to the cabinet)
or behind a return air grille in the wall or ceiling. Check
the filter monthly and clean or replace it as needed.
2.
Disposable Filter
Disposable filters should be
replaced with a filter of the same type and size.
NOTE − If you are unsure about the filter required for your
system, call your Lennox dealer for assistance.
IMPORTANT
Turn off electrical power to the unit at the discon-
nect switch before performing any maintenance.
The unit may have multiple power supplies.
3.
Reusable Filter
Many indoor units are equipped
with reusable foam filters. Clean foam filters with a
mild soap and water solution; rinse thoroughly; allow
filter to dry completely before returning it to the unit or
grille.
NOTE − The filter and all access panels must be in place
any time the unit is in operation.
4.
Electronic Air Cleaner
Some systems are
equipped with an electronic air cleaner, designed to
remove airborne particles from the air passing through
the cleaner. If your system is so equipped, ask your
dealer for maintenance instructions.
5.
Indoor Unit
The indoor unit’s evaporator coil is
equipped with a drain pan to collect condensate
formed as your system removes humidity from the
inside air. Have your dealer show you the location of
the drain line and how to check for obstructions. (This
would also apply to an auxiliary drain, if installed.)
IMPORTANT
Sprinklers and soaker hoses should not be installed
where they could cause prolonged exposure to the
outdoor unit by treated water. Prolonged exposure
of the unit to treated water (i.e., sprinkler systems,
soakers, waste water, etc.) will corrode the surface
of steel and aluminum parts and diminish
performance and longevity of the unit.
6.
Outdoor Unit
Make sure no obstructions restrict
airflow to the outdoor unit. Leaves, trash or shrubs
crowding the unit cause the outdoor unit to work harder
and use more energy. Keep shrubbery trimmed away
from the unit and periodically check for debris which
collects around the unit.
When removing debris from around the unit, be aware of
metal edges on parts and screws. Although special care
has been taken to keep exposed edges to a minimum,
physical contact with metal edges and corners while
applying excessive force or rapid motion can result in
personal injury.
Cleaning of the outdoor unit’s coil should be performed by
a trained service technician. Contact your dealer and set
up a schedule (preferably twice a year, but at least once a
year) to inspect and service your air conditioning or heat
pump system.
