© 2015 Pentair Equipment Protection
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MAINTENANCE
COMPRESSOR
The compressor requires no maintenance. It is hermetically sealed, properly lubricated at the factory and should
provide years of satisfactory operating service.
Under no circumstances should the access fitting covers be loosened, removed or tampered with.
Breaking of seals on compressor access fittings during warranty period will void warranty on hermetic system.
Recharging ports are provided for the ease and convenience of certified refrigeration repair service personnel for
recharging the air conditioner.
INLET AIR FILTER
This air conditioner was designed with a dust resistant condenser coil. This allows it to be run filterless in most
applications. The air conditioner is shipped with a filter in place for your convenience. For filterless operation,
simply remove the filter. Should you decide the filter is necessary in your application, regular maintenance
to clean this filter will assure normal operation of the air conditioner. The easily removable inlet air filter is
located inside the filter slot opening in the front cover. If necessary filter maintenance is delayed or ignored, the
maximum ambient temperatures under which the unit is designed to operate will be decreased.
If the compressor’s operating temperature increases above designed conditions due to a dirty or clogged filter
(or plugged condenser coil), the air conditioner’s compressor will stop operating due to actuation of the thermal
overload cut-out switch located on the compressor housing. As soon as the compressor temperature has dropped
to within the switch’s cut-in setting, the compressor will restart automatically. However the above condition will
continue to take place until the filter or coil has been cleaned. It is recommended that power to the air conditioner
be interrupted intentionally when abnormally high compressor operating temperature causes automatic shut-
down of the unit. The above described shut-down is symptomatic of a clogged or dirty filter, thus causing a
reduction in cooling air flow across the surface of the compressor and condenser coil.
HOW TO REMOVE, CLEAN OR INSTALL A NEW INLET AIR FILTER
Aluminum washable air filters are designed to provide excellent filtering efficiency with a high dust holding
capacity and a minimum amount of resistance to air flow. Because they are constructed entirely of aluminum
they are lightweight and easy to service. To achieve maximum performance from your air handling equipment, air
filters should be cleaned on a regular basis.
Cleaning Instructions:
1. Flush the filter with warm water from the exhaust side to the intake side. DO NOT USE CAUSTICS.
2. After flushing, allow filter to drain. Placing it with a corner down will assure complete drainage.