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Unitary Products Group
P.O. Box 1592, York, Pennsylvania USA17405-1592
Subject to change without notice. Printedin U.S.A
Copyright ©by York International Corporation 1994. All Rights Reserved.
550.39-N4YI
MAINTENANCE
FILTERS — The filters must be replacedas often as necessary
to assure good air flow and filtering action.
Refer to the unit dimension detail (Figure 9) for the location of
the filter access panel.
EVAPORATOR COIL —Do notallow dirtto accumulateon the
evaporator coil or other parts of the evaporator air circuit. Clean
as often as necessary to assure good system performance.
Use a brush, vacuum cleaner attachment or other suitable
means.
LUBRICATION — The bearings for the blower shaft and
the blower motors are permanently lubricated and
should not require additional lubricant.
DRAIN PAN — The drain pan should be inspected regu
-
larly to assure proper drainage.
BELTS — Maintain belt tension to extend belt life. Re
-
place when signs of failure begin to appear.