177820-YIM-A-0506
Unitary Products Group 35
the replacement filter must be the same as the
replaced filter.
MOTORS
Outdoor fan motors
are permanently lubricated and
require no maintenance.
Indoor Blower Motor and Drive
- The indoor blower
motor features ball bearings that do not require
periodic lubrication.
On an annual basis, check the motor for accumulations
of dust, etc. that may block the cooling slots in the
motor shell. Check for loose, damaged or misaligned
drive components. Check that all mounting bolts are
tight. Replace defective parts as required.
OUTDOOR COIL
Dirt should not be allowed to accumulate on the out-
door coil surface or other parts in the air circuit. Clean-
ing should be as often as necessary to keep coil clean.
Use a brush, vacuum cleaner attachment, or other suit-
able means. If water is used to clean coil, be sure elec-
tric power to the unit is shut off prior to cleaning.
NOTE: Exercise care when cleaning the coil so that
the coil fins are not damaged.
Perform all maintenance operations on the
blower motor with electric power disconnected
from the unit. Do not attempt to lubricate bear-
ings with the unit in operation.
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