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Friedrich 2007 service manual Model, SL28L30-A

Models: 2007

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SL28L30-A

MODEL

SL28L30-A

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Friedrich 2007 service manual Model, SL28L30-A

Contents

Room Air Conditioners TimerPower 2007TABLE OF CONTENTS INTRODUCTION TYPICAL UNIT COMPONENTSFIRST YEAR ROOM AIR CONDITIONERS LIMITED WARRANTYSECOND THROUGH FIFTH YEAR ROUTINE MAINTENANCE UNIT IDENTIFICATION S S 08 LRAC Serial Number Identiﬁcation Guide Chassis-Q ELECTRICAL DATA ELECTRIC SHOCK HAZARDFUNCTIONAL COMPONENT DEFINITIONS ELECTRONIC CONTROLSTESTING THE ELECTRONIC CONTROLS MECHANICAL COMPONENTSTESTING THE ELECTRONIC CONTROL ELECTRONIC CONTROLSREFRIGERATION SYSTEM SEQUENCE OF OPERATION Refrigerant System ComponentsHERMETIC COMPONENT REPLACEMENT HERMETIC COMPONENT REPLACEMENT cont’dEQUIPMENT REQUIRED EQUIPMENT MUST BE CAPABLE OFREFRIGERANT CHARGING METHOD OF CHARGINGREFRIGERANT CHARGING cont’d UNDERCHARGED REFRIGERANT SYSTEMSNOTE Heat pump refrigeration drawing OVERCHARGED REFRIGERANT SYSTEMSREFRIGERANT CHARGING cont’d RESTRICTED REFRIGERANT SYSTEMPOSSIBLE CAUSES CORRECTIONSNORMAL FUNCTION OF VALVE MALFUNCTION OF VALVEProblem ProblemProblem Possible CauseReplace fuse, reset breaker. If repeats, check Overload inoperative. Opens too soon Sublimation Heat anticipator resistor shorted on applicable TROUBLESHOOTING CHART - COOLING REFRIGERANT SYSTEM DIAGNOSIS - HEATINGTROUBLESHOOTING CHART - HEATING ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMPREFRIGERANT SYSTEM DIAGNOSIS - HEATING HEAT PUMPMODELS MODELS MODELS MODEL SL36L30-AMODEL SL28L30-ASL36L30-B MODELSMODEL EQ08L11-AES12L33-A, ES16L33-A, EM18L34-A, EM24L35-A MODELSMODEL EL36L35-AMODEL YS09L10-A, YS09L10-BYS13L33-A, YM18L34-A MODELSYL24L35-A MODELSFriedrich Air Conditioning Co Post Office Box 1540 San Antonio, Texas4200 N. Pan Am Expressway San Antonio, Texas RAC-Svc-07