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Friedrich service manual Standard Chassis R-410AModels, Room Air Conditioners, Service Manual

Models: R-410A

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Service Manual

Room Air Conditioners

AUTO
AUTO	°F °C
CONTINUOUS
AUTO
SYSTEM	FAN MODE
SCHEDULE	FAN SPEED

Standard Chassis R-410A Models

Cool Only

115-Volt:SS08M10, SS10M10, SS12M10, SS14M10

208-230-Volt:SS12M30, SS15M30, SM18M30, SM21M30

SM24M30, SL28M30, SL36M30

Cool with Electric Heat

208-230-Volt:ES12M33, ES15M33, EM18M34, EM24M35, EL36M35

Heat Pump with Electric Heat

208-230-Volt:YS12M33, YM18M34, YL24M35

Heat Pump

115-Volt: YS10M10

Kuhl-ServMan (5-10)

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Friedrich service manual Standard Chassis R-410AModels, Room Air Conditioners, Service Manual, Cool Only

Contents

Service Manual Standard Chassis R-410AModelsRoom Air Conditioners Cool OnlyTable Of Contents PERSONAL INJURY OR DEATH HAZARDS IMPORTANT SAFETY INFORMATIONELECTRICAL HAZARDS MECHANICAL HAZARDS REFRIGERATION SYSTEM REPAIR HAZARDSFIRE DAMAGE HAZARDS PROPERTY DAMAGE HAZARDSWATER DAMAGE HAZARDS MODEL AND SERIAL NUMBER LOCATION INTRODUCTIONRegister the air conditioner Model Number Code UNIT IDENTIFICATIONRAC Serial Number Identiﬁcation Guide S S 08 M 1 0 APERFORMANCE DATA SPECIFICATIONSKühl Kühl + Heat PumpKeep the filter clean Installation Information / Sleeve DimensionsProper installation of seal gasket Unit placementELECTRICAL DATA NOTICEELECTRIC SHOCK HAZARD FIRE HAZARDTest the power cord Make sure the wiring is adequate for your unitWARNING: Before Operating Your Unit DO NOT use an extension cordFigure Control Panel OperationCHECK FILTER Special FunctionsPress the UP to go to the next menu BAND Key Sequence DIGITAL CONTROL PANELS ACCESS CODES SUMMARYAction Remote Effectiveness Remote Control OperationSIDE VIEW TOP VIEWFigure Remote Control Operation ContinuedTesting the Display ELECTRONIC CONTROL SYSTEM MAINTENANCEIntroduction DisplayElectronic Control System Maintenance Operation To Enter the Maintenance SectionMaintenance Sub-Menus Temperature Low Limit Temperature High LimitM3 – Test Mode Access The Following functions Can be TestedM4 – Switch Access Unit Configuration FACTORY USE ONLYM5 – Error Codes & History To Clear Error Codes’ HistoryFront Panel UNIT OPERATIONSystem Set Point Mapping Figure COOL-HEATSET POINTSCompressor and Reversing Valve Control ELECTRONIC CONTROL SEQUENCE OF OPERATIONCooling Mode Compressor OperationHeat Control Operation Heat Pump Only Heating Mode Control OperationHeat Control Heat Pump Only If Electric Heat is Available Heat Pump With Electric Heat OperationCondition Heat Pump With Electric Heat Operation Continued Automatic Change Over Delay Cool with Heat UnitsSystem Mode Auto ConditionHeating Fan Delay Cooling Fan DelayFan Speed Change Delay Compressor Lock Out TimeFan ICON Detail Fan Operation Front Panel ModeFan Mapping ModeFront Panel Display Operation in Wall-StatMode UNIT OPERATION WITH A WALL-STATThermostat terminals requirements During Heat ModeREMOVING THE CHASSIS REMOVING THE FRONT COVERELECTRIC SHOCK HAZARD ELECTRIC SHOCK HAZARDREPLACING THE CONTROL BOARD REPLACING THE INDOOR COIL THERMISTORELECTRIC SHOCK HAZARD Up Swing OutLow Voltage Interface Connector Connecting a Remote Wall ThermostatAdding a Remote Wall Thermostat Interface Connector Location Figure TableRemote Wall Thermostat Location Air flow direction adjustmentFresh air and exhaust control Airflow Selection and AdjustmentCAPACITORS COMPONENTS TESTINGCapacitor Check with Capacitor Analyzer Capacitor ConnectionsNOTE: Always replace with the exact replacement COMPONENTS TESTINGTESTING THE HEATING ELEMENT HEATING ELEMENTREFRIGERATION SEQUENCE OF OPERATION Refrigeration system under high pressure R-410ASEALED SYSTEM REPAIR CONSIDERATIONSRefrigerant Charging R-410ASEALED REFRIGERATION SYSTEM REPAIRSEQUIPMENT REQUIRED EQUIPMENT MUST BE CAPABLE OFBURN HAZARD Method Of Charging / RepairsFREEZE HAZARD BURN HAZARDOvercharged Refrigerant Systems Undercharged Refrigerant SystemsELECTRIC SHOCK HAZARD HIGH PRESSURE HAZARDRestricted Refrigerant System METERING DEVICE HERMETIC COMPONENTS CHECKCHECK VALVE Capillary Tube SystemsELECTRIC SHOCK HAZARD REVERSING VALVE DESCRIPTION/OPERATIONCHECKING THE REVERSING VALVE TESTING THE REVERSING VALVE SOLENOID COILELECTRIC SHOCK HAZARD HIGH PRESSURE HAZARDNOTICE Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle BURN HAZARDSingle Phase Connections COMPRESSOR CHECKSSingle Phase Running and L.R.A. Test Locked Rotor Voltage L.R.V. TestELECTRIC SHOCK HAZARD Single Phase Resistance TestGROUND TEST CHECKING COMPRESSOR EFFICIENCYRecommended procedure for compressor replacement COMPRESSOR REPLACEMENTHIGH TEMPERATURES NOTICEHIGH PRESSURE HAZARD ELECTRIC SHOCK HAZARDEXPLOSION HAZARD EXCESSIVE WEIGHT HAZARD ROUTINE MAINTENANCEBLOWER WHEEL / HOUSING / CONDENSER FAN / SHROUD NOTICEROUTINE MAINTENANCE Continued STEP ROUTINE MAINTENANCE ContinuedFigure STEPNOTE: This is a warm weather appliance CONTROL PANEL BATTERY CHANGE PROCEDURECondensation is normal FrostingAvailable Accessories Service and AssistanceIf you require further assistance Our specialists are able to assist you withGOOD HOW IS ALL OF THE INSTALLATION?= SQ/CU/FT DATE: _______________Error ERROR CODES AND ALARM STATUSKey Sequence Problem TROUBLESHOOTING TIPSPossible Solution Possible CauseProblem TROUBLESHOOTING TIPS ContinuedPossible Solution Possible CausePossible Solution ProblemProblem Possible SolutionPossible Solution ProblemProblem Possible SolutionPossible Solution ProblemProblem Possible SolutionProblem Possible Solution ProblemProblem Possible SolutionREFRIGERANT SYSTEM DIAGNOSIS - COOLING CYCLE TROUBLESHOOTING CHART - HEAT PUMPProblem ProblemREFRIGERANT SYSTEM DIAGNOSIS - HEATING CYCLE ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMPHEAT PUMP SYSTEM COOLS WHEN HEATING IS DESIREDCORRECTIONS POSSIBLE CAUSESNORMAL FUNCTION OF VALVE MALFUNCTION OF VALVEReversing Valve Battery Compartment Max Speed Transformer voltage Selector Switch 115/230 VoltsUser Interface connector DISCHARGECOOL W/O ELECTRIC HEAT REMOTE WALL THERMOSTAT WIRING DIAGRAMSHEAT PUMP ONLY AND HEAT PUMP WITH ELECTRIC HEAT SS08M10A, SS10M10A, SS12M10A, SS14M10A KUHL ELECTRONIC CONTROL COOL ONLY MODELSSS12M30A, SS15M30A SM18M30A, SM21M30A, SM24M30A SCHEMATICWIRING DIAGRAM SL28M30A, SL36M30ASCHEMATIC KUHL ELECTRONIC CONTROL COOL ONLY MODELSCOOL WITH ELECTRIC HEAT MODELS ES12M33A, ES15M33A KUHL+ ELECTRONIC CONTROLEM18M34A, EM24M34A SCHEMATICKUHL+ ELECTRONIC CONTROL COOL WITH ELECTRIC HEAT MODEL EL36M35AS C HE MAT IC L E G E N DYS10M10A KUHL+ ELECTRONIC CONTROL HEAT PUMP ONLY MODELSCHEMATIC L E G E N DPUMP WITH ELECTRIC HEAT MODELS YS12M33A, YM18M34A HEATSCHEMATIC KUHL+ ELECTRONIC CONTROLSCHEMATIC HEAT PUMP WITH ELECTRIC HEAT MODEL YL24M35AKUHL+ ELECTRONIC CONTROL L E G E N DThis Table Applies to All Thermistors THERMISTORS’ RESISTANCE VALUESKühl Remote Control Step 4 Checking the Remote Control’s OPT # Code Kühl Remote ControlRemote Control Remote Control’s OPT# Code see example below FigKühl User Interface Service Kit Replacement InstructionsRibbon cable connection Mounting screws FORM FOR ROOM AIR CONDITIONERS INSTRUCTIONS FOR USING COOLING LOAD ESTIMATEAHAM PUB. NO. RAC-1 HEAT GAIN FROM COOLING LOAD ESTIMATE FORMQUANTITY FACTORSFollowing is an example using the heat load form HEAT LOAD FORMWINDOWS & DOORS Area, sq. ft HEATING LOAD FORM FRIEDRICH ROOM UNIT HEAT PUMPSINFILTRATION - WINDOWS & DOORS: AVG FIRST YEAR ROOM AIR CONDITIONERS LIMITED WARRANTYSECOND THROUGH FIFTH YEAR TECHNICAL SUPPORT CONTACT INFORMATION FRIEDRICH AIR CONDITIONING COPost Ofﬁce Box 1540 · San Antonio, Texas 4200 N. Pan Am Expressway · San Antonio, TexasPost Ofﬁce Box 1540 · San Antonio, Texas FRIEDRICH AIR CONDITIONING CO4200 N. Pan Am Expressway · San Antonio, Texas Printed in the U.S.A