Manuals / Panasonic / Household Appliance / Air Conditioner

Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA service manual

Models: Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA

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17. Disassembly and Assembly Instructions

WARNING

High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks.

17.1Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures

17.1.1To remove front grille

17.1.1.1To remove power electronic controller

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Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA Disassembly and Assembly Instructions

Contents

CS-E9NKUAW TABLE OF CONTENTSIndoor Unit Outdoor UnitConnection 17. Disassembly and Assembly InstructionsExploded View and Replacement Parts 13. Operation Control For Multi Split1. Safety Precautions 20.During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck-inof air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc 2. Specification Type DRY BULB šServiceability Improvement 3. FeaturesšLong Installation Piping šEasy to use remote control šQuality Improvement4. Location of Controls and Components 4.1Indoor Unit 4.2Outdoor Unit 4.3Remote Control5.1Indoor Unit 5. Dimensions5.2Outdoor Unit 6. Refrigeration Cycle Diagram 7. Block Diagram 8.1Indoor Unit 8. Wiring Connection Diagram8.2Outdoor Unit 9.1Indoor Unit 9. Electronic Circuit Diagram9.2Outdoor Unit 10. Printed Circuit Board 10.1Indoor Unit10.1.1Main Printed Circuit Board 10.1.3Indicator Printed Circuit Board 10.1.2Power Printed Circuit Board10.2.1Main Printed Circuit Board 10.2Outdoor Unit11.1.1Indoor Unit 11. Installation Instruction11.1.3Indoor/Outdoor Unit Installation Diagram 11.1Select the Best Location11.2Indoor Unit 11.2.1How to Fix Installation Plate11.2.3.3For the embedded piping 11.2.3Indoor Unit Installation11.2.3.1For the right rear piping 11.2.3.2For the right bottom piping11.2.4Connect the Cable to the Indoor Unit 11.2.5.1Cutting and flaring the piping 11.2.5Wiring Stripping and connecting requirement11.3Outdoor Unit 11.3.1Install the Outdoor Unit11.3.2.1Connecting the piping to indoor 11.3.2.2Connecting the piping to outdoor11.3.2.3Connecting the piping to outdoor multi 11.3.2.4Gas Leak Checking11.3.3Evacuation of the equipment 11.3.3.2Piping Insulation 11.3.3.1Connect the Cable to the Outdoor Unit12.1.2Cooling Operation 12.1.1Internal Setting Temperature12. Operation Control 12.1Basic Function12.2Indoor Fan Motor Operation 12.1.4.2Automatic Operation12.2.1Basic Rotation Speed rpm 12.3Outdoor Fan Motor Operation 12.4Airflow Direction12.4.1Vertical Airflow 12.4.2Horizontal Airflow 12.6Quiet Operation Heating12.8.2OFF Timer Control 12.7Powerful Mode Operation12.8Timer Control 12.8.1ON Timer Control12.10Indication Panel 13.2Soft Dry Operation 13.3.2Temperature Sampling Control13. Operation Control For Multi Split Connection 13.1Cooling operation13.7Auto restart control 13.6Powerful Mode Operation13.4Automatic Operation 13.5Indoor Fan Motor Operation14.1Protection Control For All Operations 14.1.1Restart Control Time Delay Safety Control14.1.4IPM Power Transistor Prevention Control 14.Protection Control14.1.8Low Frequency Protection Control 14.2.1Outdoor Air Temperature Control14.1.5Compressor Overheating Prevention Control 14.1.7Low Frequency Protection Control14.2.4Freeze Prevention Control 14.2.6.1Intake Air Temperature Control14.2.2Cooling Overload Control 14.2.3Freeze Prevention Control14.2.6.6Deice Operation 14.2.6.2Outdoor Air Temperature Control14.2.6.3Overload Protection Control 14.2.6.5Cold Draught Prevention Control15.1Auto Off/On Button 15. Servicing Mode15.2.4TIMER 15.2Remote Control Button15.2.2RESET RC 15.2.3RESET AC16.1Refrigeration Cycle System 16. Troubleshooting GuidePage 16.2.2To Make a Diagnosis 16.2Breakdown Self Diagnosis Function16.3Error Code Table “” – Frequency measured and fan speed fixed Malfunction Decision Conditions Troubleshooting16.4 Self-diagnosisMethod 16.4.1H11 Indoor/Outdoor Abnormal CommunicationMalfunction Caused 16.4.2H12 Indoor/Outdoor Capacity Rank MismatchedTroubleshooting Malfunction Decision ConditionsMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingšCT defective šOutdoor PCB defective TroubleshootingMalfunction Decision Conditions Malfunction CausedšOperation stops due to Hall IC malfunction TroubleshootingMalfunction Decision Conditions Malfunction CausedMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingšWrong models interconnected TroubleshootingMalfunction Decision Conditions Malfunction CausedTroubleshooting 16.4.13 H36 Outdoor Gas Pipe Sensor AbnormalityšFaulty connector connection šFaulty sensor šFaulty PCBMalfunction Decision Conditions šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingšOperation stops due to Hall IC malfunction TroubleshootingMalfunction Decision Conditions Malfunction CausedMalfunction Caused 16.4.16 H98 Indoor High Pressure ProtectionTroubleshooting Malfunction Decision ConditionsšClogged air filter of the indoor unit TroubleshootingMalfunction Decision Conditions Malfunction CausedTroubleshooting šFaulty connector connectionšFaulty indoor pipe temperature sensor šFaulty indoor main PCBMalfunction Caused RemarkTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.20 F90 Power Factor Correction ProtectionTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.21F91 Refrigeration Cycle AbnormalityTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.22F93 Compressor Rotation FailureTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.23F95 Cooling High Pressure AbnormalityTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.24F96 IPM OverheatingTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.25F97 Compressor OverheatingTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.26F98 Input Over Current DetectionTroubleshooting Malfunction Decision ConditionsMalfunction Caused 16.4.27F99 Output Over Current DetectionTroubleshooting Malfunction Decision Conditions17. Disassembly and Assembly Instructions 17.1.1.1To remove power electronic controller17.1.1To remove front grille 17.1.1.2To remove discharge grille 17.1.1.3To remove control board Page 18. Technical Data 18.1Operation Characteristics18.1.1CS-E9NK CU-E9NK Operation condition šPiping Length Characteristic CoolingRoom temperature 81F DBT, 66F WBTOperation condition šHeating CharacteristicRoom temperature 68F DBTOperation condition šPiping Length Characteristic HeatingRoom temperature 68F DBT81F DBT, 66F WBT 18.1.2CS-E12NK CU-E12NKšCooling Characteristic Room temperatureOperation condition šPiping Length Characteristic CoolingRoom temperature 81F DBT, 66F WBTOperation condition šHeating CharacteristicRoom temperature 68F DBTOperation condition šPiping Length Characteristic HeatingRoom temperature 68F DBT19.1Indoor Unit 19. Exploded View and Replacement Parts ListšAll parts are supplied from PHAAM, Malaysia Vendor Code: 19.2Outdoor Unit CU-E12NKUA REF. NOPART NAME & DESCRIPTION CU-E9NKUA