Assessments - 3, GPA: 3.7
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7 Functional Component Defi nitions ....................................8 Electronic Controls ......................................................... 8-9 Refrigeration Sequence of Operation ..............................10 Sealed Refrigeration Repairs...................................... 10-11 Refrigerant Charging ...................................................12-14 Troubleshooting ...........................................................15-22 Wiring Diagrams ......................................................... 23-35 The information contained in this manual is intended for use by a qualified service technician who is familiar with the safety procedures required in installation and repair, and who is equipped with the proper tools and test instruments. Installation or repairs made by unqualifi ed persons can result in hazards subjecting the unqualified person making such repairs to the risk of injury or electrical shock which can be serious or even fatal not only to them, but also to persons being served by the equipment. If you install or perform service on equipment, you must assume responsibility for any bodily injury or property damage which may result to you or others. Friedrich Air Conditioning Company will not be responsible for any injury or property damage arising from improper installation, service, and/or service procedures. INTRODUCTION This service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning system component. This service manual was written to assist the professional RAC service technician to quickly and accurately diagnose and repair malfunctions. This manual will deal with subjects in a general nature. (i.e. all text will not pertain to all models). IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a proper diagnosis and repair (See Unit Identifi cation). Return Air Grille/Filter Discharge Air Evaporator Coil Blower Wheel Capillary Tube Condenser Fan Blade Outdoor Grille Sleeve Condenser Coil Compressor Basepan Front Cover System Switches Reversing Valve (some models) Fresh Air Liquid Filter Driers Blower Motor TYPICAL UNIT COMPONENTS Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 ROOM AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible for service. Any additional labor cost for removing inaccessible units and/or charges for mileage related to travel by a Service Agency that exceeds 25 miles one way will be the responsibility of the owner. This remedy is expressly agreed to be the exclusive remedy within twelve months from the date of the original purchase. SECOND THROUGH FIFTH YEAR SEALED REFRIGERANT SYSTEM: If the Sealed Refrigeration System (defined for this purpose as the compressor, condenser coil, evaporator coil, reversing valve, check valve, capillary, filter drier, and all interconnecting tubing) supplied by FRIEDRICH in your Room Air Conditioner fails because of a defect in workmanship or material within sixty months from date of purchase, FRIEDRICH will pay a labor allowance and parts necessary to repair the Sealed Refrigeration System; PROVIDED FRIEDRICH will not pay the cost of diagnosis of the problem, removal, freight charges, and transportation of the air conditioner to and from the Service Agency, and the reinstallation charges associated with repair of the Sealed Refrigeration System. All such cost will be the sole responsibility of the owner. This remedy is expressly agreed to be the exclusive remedy within sixty months from the date of the original purchase. APPLICABILITY AND LIMITATIONS: This warranty is applicable only to units retained within the Fifty States of the U.S.A., District of Columbia, and Canada. This warranty is not applicable to: 1. Air filters or fuses. 2. Products on which the model and serial numbers have been removed. 3. Products which have defects or damage which results from improper installation, wiring, electrical current characteristics, or maintenance; or caused by accident, misuse or abuse, fire, flood, alterations and/or misapplication of the product and/or units installed in a corrosive atmosphere, default or delay in performance caused by war, government restrictions or restraints, strikes, material shortages beyond the control of FRIEDRICH, or acts of God. OBTAINING WARRANTY PERFORMANCE: Service will be provided by the FRIEDRICH Authorized Dealer or Service Organization in your area. They are listed in the Yellow Pages. If assistance is required in obtaining warranty performance, write to: Room Air Conditioner Service Manager, Friedrich Air Conditioning Co., P.O. Box 1540, San Antonio, TX 78295-1540. LIM...