Panasonic service manual CS-S12NKUW-1+CS-S9NKUW-1 CU-2S18NBU-1

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16.1.5CS-S12NKUW-1+CS-S9NKUW-1 CU-2S18NBU-1

•Cooling Characteristic

o	Room temperature:	81°F (DBT), 66°F (WBT)
o	Operation condition:	High fan speed
o	Piping length:	24.6ft
o	Compressor Freq:	Fc

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Contents Table of Contents Disassembly and Assembly Instructions Items to be followed are classified by the symbols Safety PrecautionsPage Model Outdoor Unit CU-2S18NBU-1 SpecificationMulti split combination possibility Dimensions Refrigeration Cycle Diagram Block Diagram Wiring Connection Diagram Electronic Circuit Diagram Main Printed Circuit Board Printed Circuit BoardNoise Filter Printed Circuit Board Check Points Installation InformationOutdoor Unit Installation Diagram Installation InstructionOutdoor Unit Installation Guidelines Gas Leak Checking Connecting the Piping to Outdoor UnitEvacuation of the Equipment Heat Insulation Outdoor fan control Powerful OperationOperation Control Cooling OperationFreeze Prevention control Cool Electronic Parts Temperature Rise Protection 1 CoolElectronic Parts Temperature Rise Protection 2 Cool Protection Control12.7 30 seconds Force Operation Time Delay Safety Control Restart ControlIPM power transistor Protection Control Cooling overload control CoolCompressor Protection Control Gas leak detection control Valve close detection controlCompressor discharge high pressure protection control Test Operation Servicing ModeWiring Error Check Pump Down OperationMode priority function Power Save ModeSelf Diagnosis Function Troubleshooting GuideIndoor high Check indoor heat Exchanger Remove the Control Board Cover and Particular Plates Disassembly and Assembly InstructionsOutdoor Unit Removal Procedure Removing the Cabinet Top Plate and Cabinet Front PlateRemoving the Propeller Fan and Fan Motor Removing the Control P.C. BoardPage Technical Data Operation CharacteristicsCS-S9NKUW-1 CU-2S18NBU-1 Page CS-S9NKUW-1x2 CU-2S18NBU-1 Page CS-S12NKUW-1 CU-2S18NBU-1 Page CS-S12NKUW-1x2 CU-2S18NBU-1 Page CS-S12NKUW-1+CS-S9NKUW-1 CU-2S18NBU-1 Page Exploded View and Replacement Parts List REF. no Description & Name QTY Shock Absorber Left