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4. Clean coil using a commercial coil cleaner or dishwasher
detergent in a pressurized spray canister. Wash both sides
of coil and flush with clean water. For best results,
back-flush toward return-air section to remove foreign
material. Flush condensate pan after completion.
5. Reinstall economizer and filters.
6. Reconnect wiring.
7. Replace access panels.
Condenser Coil
Inspect coil monthly. Clean condenser coil annually, and as
required by location and outdoor air conditions.
One- -Row Coil
Wash coil with commercial coil cleaner. It is not necessary to
remove top panel.
2-Row Coils
Clean coil as follows:
1. Turn off unit power and tag disconnect.
2. Remove top panel screws on condenser end of unit.
3. Remove condenser coil corner post. (See Fig. 45.) To hold
top panel open, place coil corner post between top panel
and center post. (See Fig. 46.)
Fig. 45 --- Cleaning Condenser Coil
Fig. 46 --- Propping Up Top Panel
Fig. 47 --- Separating Coil Sections
4. Remove device holding coil sections together at return end
of condenser coil. Carefully separate the outer coil section
3 to 4 in. from the inner coil section. (See Fig. 47.)
5. Use a water hose or other suitable equipment to flush
down between the 2 coil sections to remove dirt and
debris. Clean the outer surfaces with a stiff brush in the
normal manner.
6. Secure the sections together. Reposition the outer coil
section and remove the coil corner post from between the
top panel and center post. Install the coil corner and center
posts. Replace all screws.
Condensate Drain
Check and clean each year at the start of the cooling season. In
winter, keep the drain dry or protect it against freeze-up.
Filters
Clean or replace at the start of each heating and cooling season, or
more often if operating conditions require it. Replacement filters
C06044
must be the same dimensions as the original filters.
Outdoor- -Air Inlet Screen
Clean the screen with steam or hot water and a mild detergent. Do
not use disposable filters in place of screens.
Step 2 —Lubrication
Compressor
The compressor is charged with the correct amount of oil at the
factory.
Fan Motor Bearings
Fan motor bearings are permanently lubricated. No further
lubrication is required.
evaporator-fan motors is required.
Evaporator Fan Belt Adjustment
Inspect evaporator fan belt for wear, proper belt tension, and
C06045
pulley alignment as conditions require or at the beginning of each
heating and air conditioning season. Refer to Step 7 - - Adjust
Evaporator Fan Speed for adjustment and alignment procedures.
51
No lubrication of condenser-fan or
C06046
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