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ZH 036, 048, 060
D - Supply Air Blower Wheel
Annually inspect supply air blower wheel for accumulated
dirt or dust. Turn off power before attempting to remove
access panel or to clean blower wheel.
E - Indoor Coil
Inspect and clean coil at beginning of each cooling and
heating season. Clean using mild detergent or
commercial coil cleanser. Flush coil and condensate
drain with water taking care not to get insulation, filters
and return air ducts wet.
F - Outdoor Coil
Clean outdoor coil annually with detergent or commercial
coil cleaner and inspect monthly during the cooling
season.
Outdoor coils are made of single and two formed slabs.
On units with two slabs, dirt and debris may become
trapped between the slabs. To clean between slabs,
carefully separate coil slabs and wash them thoroughly.
See figure 16. Flush coils with water following cleaning.
Note - Remove all screws and gaskets prior to cleaning
procedure and replace upon completion.
G - Filter Drier
The unit is equipped with a biflow filter drier. if
replacement is necessary, order another of like design.
ENDPLATE IS SECURED TO MULLION
TOP VIEW
OUTDOOR
COILS
FIGURE 16
1- Remove screws securing coil end plate to mullion.
2- Remove wire ties connecting coils slabs and separate
slabs 3-4” (76-102mm).
3- Clean coils with detergent or commercial coil cleaner.
4- Rinse thoroughly with water and reassemble
.
5- Secure coil slabs together using field-provided wire
ties.
CLEAN OUTDOOR COIL
SUPPLY
AIR
RETURN
AIR
