© 2010 Pentair Technical Products
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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.
Should the refrigerant charge be lost, recharging ports (access ttings) on the suction and discharge sides of the
compressor are provided for recharging and/or checking suction and discharge pressures.
Under no circumstances should the access tting covers be loosened, removed or tampered with.
Breaking of seals on compressor access ttings during warranty period will void warranty on hermetic system.
Recharging ports are provided for the ease and convenience of reputable refrigeration repair service personnel for
recharging the air conditioner.
Inlet Air Filter
Proper maintenance of the inlet air lter, located behind the front cover, will assure normal operation of the air
conditioner. If lter 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 lter (or
plugged condenser coil), the air conditioner’s compressor will stop operating due to actuation of the thermal overload
cutout 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 lter has been cleaned or replaced.
It is recommended that power to the air conditioner be interrupted intentionally when abnormally high compressor
operating temperature causes automatic shutdown of the unit. The above described shutdown is symptomatic of
clogged or dirty lter, thus causing a reduction in cooling airow across the surface of the compressor and condenser
coil.
Do not run the air conditioner for extended periods of time with the lter removed. Particles of dust, lint, etc., can plug
the ns of the condenser coil which will give the same reaction as a plugged lter. The condenser coil is not visible
through the lter opening, so protect it with a lter.
Continued operation under the above conditions can and will damage and shorten compressor life. The air
conditioner is available with an easily removable inlet lter to facilitate necessary cleaning. There should be no reason
to neglect this necessary maintenance.
How To Remove, Clean or Install a New Inlet Air Filter
RP aluminum washable air lters are designed to provide excellent ltering eciency with a high dust holding
capacity and a minimum amount of resistance to air ow. Because they are constructed entirely of aluminum they are
lightweight and easy to service. Optimum lter performance is maintained by recoating the lters after washing with
RP Super Filter Coat adhesive. To achieve maximum performance from your air handling equipment, air lters should
be cleaned on a regular basis.
The inlet air lter is located behind the front cover. To access lter, pull ring protruding from slot in bottom of front
cover. The lter may now be cleaned or new lter installed.
Cleaning Instructions:
1. Flush the lter with warm water from the exhaust side to the intake side. DO NOT USE CAUSTICS.
2. After ushing, allow lter to drain. Placing it with a corner down will assure complete drainage.
3. Recoat the lters with RP Super Filter Coat adhesive. When spraying lter do so from both sides for
maximum concentration of adhesive.
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