87567377
7
E
2005 Hoffman Enclosures Inc.
MAINTENANCE PROCEDURES
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.
CAUTION
•
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 Hoffman
Enclosures Inc. 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.
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.
MAINTENANCE INFORMATION
•
Always disconnect power before inspecting or working on unit.
•
Access filter by lifting off grille.
•
Filter is reusable and can be cleaned by flushing with water.
•
For additional filtering capacity, coat both sides of filter with filter adhesive (catalog number AFLTAD)
