© 2016 Pentair Equipment Protection
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MAINTENANCE PROCEDURES
• Disconnect all power supplies to the air conditioner before performing any service inside the unit.
• Operation of the air conditioner in areas containing airborne caustics or chemicals can rapidly
deteriorate filters, condenser coils, blowers and motors, etc. Contact Pentair Equipment Protection for
special recommendations.
• In accordance with section 608 of the Clean Air Act, no person maintaining, servicing, repairing or
disposing of appliances may knowingly vent or otherwise release into the environment any class I or
class II substance used as refrigerant.
CAUTION
MAINTENANCE INFORMATION
• Always disconnect the power before inspecting or working on the unit.
• Access the filter by lifting off the grille.
• The filter is reusable and can be cleaned by flushing with water.
• For additional filtering capacity, coat both sides of the filter with filter adhesive (catalog number AFLTAD)
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 fittings) on the suction and discharge sides
of the compressor are provided for recharging and/or checking suction and discharge pressures.
In the event that service is required, use only certified refrigeration repair service personnel. Consult your
local listing for commercial air conditioning maintenance establishments.
REFRIGERANT LOSS
Your air conditioner was thoroughly tested before leaving the factory to insure against refrigerant leaks.
Shipping damage or microscopic leaks not found with sensitive electronic refrigerant leak-detection
equipment during manufacturing may require repair and recharging of the system. This work should be
performed by qualified professionals only, generally available in any reputable air conditioning repair or
service company in your local area.
Refer to the data on your nameplate which specifies the type of refrigerant and the charge sizes in ounces.
Prior to recharging, the system must be evacuated and checked for leaks.
FANS AND MOTORS
Fan motors require no maintenance. All bearings, shafts, etc. are lubricated during manufacturing for the
life of the motor. Access for fan replacement requires the removal of the air conditioner shroud.
CONDENSER AND EVAPORATOR
Condensers and evaporator coils are constructed with copper tubes with mechanically bonded aluminum
fins. No maintenance is ordinarily required. If the air conditioner is used in a dirty environment, periodic
cleaning of dirt and debris from the outside fin surface may be required to maintain design operating
performance. Care must be taken during cleaning to prevent damage to the coil fins.
CONDENSER INLET FILTER
Periodic maintenance of the inlet filter will assure normal operation of your air conditioner.
As the compressors operating temperature increases above normal due to dirty or clogged inlet filter (or
plugged condenser coil), it 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 inlet filter has been cleaned or replaced. It is recommended that the power
to the air conditioner be disconnected when abnormally high compressor operating temperatures cause
automatic shut−down of the unit. The above described shutdown is symptomatic of clogged or dirty filters,
thus causing a reduction in cooling air flow across the surface of the compressor and condenser coil.
Continued operation of the air conditioner with a clogged or dirty filter will damage and
shorten the compressor life. The air conditioner features an easily removable inlet filter to
facilitate necessary cleaning.
