Manuals / Panasonic / Household Appliance / Air Conditioner

Panasonic CU-2E18NBU service manual

Models: CU-2E18NBU

1 57

Download 57 pages 29.38 Kb

Page 34

Manual background

3Disconnect the fan motor connector from the control P.C. Board.

4Loosen the 4 fan motor mounting screws then remove the fan motor.

34

Image 34

Panasonic CU-2E18NBU service manual

Contents

TABLE OF CONTENTS Outdoor Unit CU-2E18NBU18. Exploded View and Replacement Parts 16. Disassembly and Assembly InstructionsList 1. Safety Precautions 7.Power supply connection to the air conditioner Unit 2. Specifications2.1CU-2E18NBU OUTDOOR UNITUnit šMulti split combination possibilityOUTDOOR UNIT Indoor unit combination 3. Dimensions 4. Refrigeration Cycle Diagram 5. Block Diagram 6. Wiring Connection Diagram 7. Electronic Circuit Diagram 8. Printed Circuit Board 8.1Main Printed Circuit Board8.2Noise Filter Printed Circuit Board 8.3Display Printed Circuit Board9.1Check Points 9. Installation Information68.6 - 65.6 ft x 0.2 oz/ft = 0.6 oz 10. Installation Instruction 10.1 Select The Best LocationOutdoor Unit Installation Guidelines 10.2 Install The Outdoor Unit10.3 Connect the Piping Gas Leak Checking10.4 Evacuation of the Equipment CUTTING AND FLARING THE PIPING10.5 Connect The Cable To The Outdoor Unit 10.6 Heat Insulation11. Operation Control 11.1 Cooling Operation11.2.3Powerful Operation 11.2 Heating Operation11.2.2Powerful Operation 11.2.1Outdoor fan control12.Simultaneous Operation Control 13.1 Freeze Prevention control Cool 13. Protection Control13.2 Dew Prevention control Cool 13.5 Cooling overload control Cool 13.6 Heating overload control Heat13.8 Deice Control 13.9 Time Delay Safety Control Restart Control13.12 IPM power transistor Protection Control 13.10 30 seconds Force Operation13.15 Valve close detection control 14. Servicing Mode 14.1 CU-2E18NBU14.1.5Mode priority function 14.1.3Wiring Error check14.1.4Power Save Mode 14.1.6Cooling only function15. Troubleshooting Guide 15.1 Self Diagnosis FunctionPage Page 16. Disassembly and Assembly Instructions 16.1 Outdoor Unit Removal Procedure16.1.3Removing the Control P.C. Board 16.1.4Removing the Propeller Fan and Fan MotorPage 17.1 Operation Characteristics 17. Technical DatašCooling Characteristic šCooling Characteristic Compressor Freq FcšPiping Length Characteristic Cooling šPiping Length Characteristic Cooling Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq FcšHeating Characteristic šHeating Characteristic Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq FhšPiping Length Characteristic Heating šPiping Length Characteristic Heating Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq Fh17.1.2Two Indoor Unit Operation šCooling CharacteristicCompressor Freq Fc šCooling Characteristic Compressor Freq FcšCooling Characteristic Compressor Freq FcšPiping Length Characteristic Cooling Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq FcšPiping Length Characteristic Cooling Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq FcšPiping Length Characteristic Cooling Condition Room temperature 81F DBT, 66F WBT Operation condition High fan speed Outdoor temperature 95F DBT Compressor Freq FcšHeating Characteristic Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq FhšHeating Characteristic Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq FhšHeating Characteristic Condition Room temperature 68F DBT Operation condition High fan speed Piping Length 24.6ft Compressor Freq FhšPiping Length Characteristic Heating Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq FhšPiping Length Characteristic Heating Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq FhšPiping Length Characteristic Heating Condition Room temperature 68F DBT Operation condition High fan speed Outdoor temperature 47F DBT, 43F WBT Compressor Freq Fh18. Exploded View and Replacement Parts List Q’TY REF. NODESCRIPTION & NAME CU-2E18NBU