Haier 4HP16 Installation Instructions Manual

507919-01Page 18 of 21Issue 1946MaintenanceRegular Maintenance RequirementsYour system should be regularly inspected by a qualifiedservice technician. These regular visits may include(among other things) checks for:• Motor operation• Ductwork air leaks• Coil & drain pan cleanliness (indoor & outdoor)• Electrical component operation & wiring check• Proper refrigerant level & refrigerant leaks• Proper airflow• Drainage of condensate• Air filter(s) performance• Blower wheel alignment, balance & cleaning• Primary & secondary drain line cleanliness• Proper defrost operation (heat pumps)Air FilterInspect air filters at least monthly and replace or clean asrequired. Disposable filters should be replaced. Washablefilters may be cleaned by soaking in mild detergent andrinsing with cold water. Allow filter to dry before reinstalling.Replace filters with the arrows pointing in the direction ofairflow. Dirty filters are the most common cause of poorheating / cooling performance and compressor failures.Indoor CoilIf the system has been operated with a clean filter in place,it should require minimal cleaning. If cleaning is needed,call your dealer for service.Condensate DrainDuring cooling season check at least monthly for free flowof drainage and clean if necessary.Condenser CoilsGrass cuttings, leaves, dirt, dust, lint from clothes dryers,and foliage from trees can be drawn into coils by movementof the air. Clogged condenser coils will lower the efficiencyof your unit and could cause damage to the condenser.Periodically, debris should be brushed from the condensercoils. Use a soft bristle brush with light pressure only. DONOT damage or bend condenser coil fins. Damaged orbent fins may affect unit operation.SHARP OBJECT HAZARD!Condenser coils have sharp edges. Wear adequatebody protection on body extremities (e.g. gloves).FAILURE TO FOLLOW THIS WARNING COULDRESULT IN BODILY INJURY.WARNINGPainted SurfacesFor maximum protection of the unit’s finish, a good gradeof automobile wax should be applied every year. Ingeographical areas where water has a high concentrationof minerals (calcium, iron, sulfur, etc.), it is recommendedthat lawn sprinklers not be allowed to spray the unit. Insuch applications, the sprinklers should be directed awayfrom the unit. Failure to follow this precaution may resultin premature deterioration of the unit finish and metalcomponents.In sea coast areas, special maintenance is required dueto the corrosive atmosphere provided by the high saltconcentration in ocean mists and the air. Periodic washingof all exposed surfaces and coil will add additional life toyour unit. Please consult your installing dealer for properprocedures in your geographic area.Homeowner InformationELECTRICAL SHOCK HAZARD!Turn OFF electric power to unit before performing anymaintenance or removing panels or doors.FAILURE TO DO SO COULD RESULT IN BODILYINJURY OR DEATH.WARNINGHeat Pump OperationYour new heat pump has several characteristics that youshould be aware of:• Heat pumps satisfy heating demand by delivering largeamounts of warm air into the living space. This is quitedifferent from gas-or oil-fired furnaces or an electricfurnace which deliver lower volumes of considerablyhotter air to heat the space.• Do not be alarmed if you notice frost on the outdoor coilin the winter months. Frost develops on the outdoorcoil during the heating cycle when temperatures arebelow 45°F. An electronic control activates a defrostcycle lasting 5 to 15 minutes at preset intervals to clearthe outdoor coil of the frost.

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