035-18877-001-B-0203
18
Unitary Products Group
MAINTENANCE
INDOOR COIL
Do not allow dirt to accumulate on the indoor coil or other
parts of the supply/return air circuit. Clean as often as neces-
sary to assure good system performance. Use a brush vac-
uum cleaner attachment or other suitable means.
If the coil becomes extremely dirty, it may be necessary to
use an industrial grade detergent and a hose to clean the
finned surfaces. This is recommended to prevent any loss in
capacity and efficiency.
FILTERS
The filters must be replaced as often as necessary to assure
good air flow and filtering action. Clean filters will prevent any
loss in capacity and efficiency.
Refer to the unit drawing in Figure 15 for the location of the
filter access panel.
DRAIN PAN
The condensate drain pan should be inspected regularly to
assure proper drainage.
LUBRICATION
The bearings for the blower shaft and the blower motor are
permanently lubricated and should not require any additional
lubricant.
BELTS
Maintain belt tension to extend belt life. Replace the signs if
failure begins to appear.
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