Manuals / Panasonic / Household Appliance / Air Conditioner

Panasonic CU-2S18NBU-1 Piping Length Characteristic, Room temperature, 81F DBT, 66F WBT

Models: CU-2S18NBU-1

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•Piping Length Characteristic

o	Room temperature:	81°F (DBT), 66°F (WBT)
o	Operation condition:	High fan speed

oOutdoor temperature: 95°F (DBT)

o Compressor Freq: Fc

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Panasonic CU-2S18NBU-1 service manual Piping Length Characteristic, Room temperature, 81F DBT, 66F WBT, Operation condition

Contents

TABLE OF CONTENTS Outdoor Unit CU-2S18NBU-18.1 Main Printed Circuit Board 8.2 Noise Filter Printed Circuit Board15. Disassembly and Assembly Instructions 17. Exploded View and Replacement Parts List..411. Safety Precautions Power supply connection to the air conditioner 2. Specification ModelOutdoor Unit CU-2S18NBU-1Multi split combination possibility 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 9. Installation Information 9.1Check PointsQUICK GUIDE 10. Installation Instruction 10.1 SELECT THE BEST LOCATIONOutdoor Unit Installation Guidelines 10.2 INSTALL THE OUTDOOR UNIT 10.3 CONNECT THE PIPING10.3.1Connecting the Piping to Outdoor Unit 10.3.2Gas Leak Checking10.4 EVACUATION OF THE EQUIPMENT 10.5 CONNECT THE CABLE TO THE OUTDOOR UNIT10.6 HEAT INSULATION Cutting and Flaring the Piping11. Operation Control 11.1 Cooling Operation12. Protection Control 12.1Freeze Prevention control Cool12.2Dew Prevention control Cool 12.6 Time Delay Safety Control Restart Control 12.9 IPM power transistor Protection Control12.5 Cooling overload control Cool 12.7 30 seconds Force Operation12.12 Valve close detection control 13.3 Wiring Error Check 13. Servicing Mode13.1 Pump Down Operation 13.2 Test Operation13.4Power Save Mode 13.5 Mode priority function14. Troubleshooting Guide 14.1 Self Diagnosis FunctionIlluminate ----------Flashing Blank ----------OFFDiagnosis Abnormality15. Disassembly and Assembly Instructions 15.1 Outdoor Unit Removal Procedure15.1.3Removing the Control P.C. Board 15.1.4Removing the Propeller Fan and Fan Motor3.Disconnect the fan motor connector from the control P.C. Board 16. Technical Data 16.1 Operation CharacteristicsPiping Length Characteristic Room temperatureoOutdoor temperature 95F DBT 81F DBT, 66F WBT16.1.2CS-S9NKUW-1x2 CU-2S18NBU-1 Piping Length Characteristic Room temperatureoOutdoor temperature 95F DBT 81F DBT, 66F WBT16.1.3CS-S12NKUW-1 CU-2S18NBU-1 Piping Length Characteristic Room temperatureoOutdoor temperature 95F DBT 81F DBT, 66F WBT16.1.4CS-S12NKUW-1x2 CU-2S18NBU-1 Piping Length Characteristic Room temperatureoOutdoor temperature 95F DBT 81F DBT, 66F WBT16.1.5CS-S12NKUW-1+CS-S9NKUW-1 CU-2S18NBU-1 Piping Length Characteristic Room temperatureoOutdoor temperature 95F DBT 81F DBT, 66F WBT17. Exploded View and Replacement Parts List REF. NO DESCRIPTION & NAMECU-2S18NBU-1 REMARKREF. NO DESCRIPTION & NAMECU-2S18NBU-1 REMARK