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Panasonic CS-KS18NKU Operating Instructions, Split System Air Conditioner, CU-KS18NKU, CS-KS24NKU

Models: CS-KS18NKU CU-KS18NKU

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Operating Instructions

Split System Air Conditioner

Model No.
Indoor Units	Outdoor Units
CS-KS18NKU	CU-KS18NKU
CS-KS24NKU	CU-KS18NKUA
	CU-KS24NKU
	CU-KS24NKUA

This air conditioner uses the refrigerant R410A.

Before operating the unit, read these operating instructions thoroughly and keep them for future reference.

Panasonic Corporation

1006 Kadoma, Kadoma City, Osaka, Japan

85264181210001

CV6233187228

Page 67

Image 67

Panasonic CS-KS18NKU Operating Instructions, Split System Air Conditioner, CU-KS18NKU, CS-KS24NKU, CU-KS24NKU, Model No

Contents

Outdoor Unit CS-KS18NKU+ CU-KS18NKU+ CU-KS18NKUACS-KS24NKU+ CU-KS24NKU+ CU-KS24NKUA Indoor UnitSAFETY PRECAUTIONS which may cause a unit breakdown 7. MAINTENANCE Table of ContentsSPECIFICATIONS 4. REFRIGERANT FLOW DIAGRAMAPPENDIX B SPECIAL PRECAUTIONS WHEN SERVICING UNIT11. REFRIGERANT R410A APPENDIX ACooling 1. OPERATING RANGEIndoor Air Intake Temp Outdoor Air Intake Tempical 2. SPECIFICATIONS2-1.Unit Specifications Voltage RatingCU-KS18NKU Indoor UnitCS-KS18NKU Outdoor Unitical CS-KS24NKUCU-KS24NKU Voltage Ratingical CS-KS24NKUCU-KS24NKU Voltage Ratingical CS-KS18NKUCU-KS18NKUA Voltage Ratingical CS-KS18NKUCU-KS18NKUA Voltage Rating< 230V > Indoor UnitCS-KS24NKU Outdoor Unit CU-KS24NKUACU-KS24NKUA Indoor UnitCS-KS24NKU Outdoor UnitFan Motor 2-2.Major Component Specifications2-2-1.Indoor Unit Control PCBFlap Motor Indoor Unit CS-KS24NKUControl PCB Fan MotorFan Motor 2-2-2.Outdoor UnitControl PCB CompressorHeat Exchanger Coil Control PCBCompressor Fan MotorHeat Exchanger Coil Control PCBCompressor Fan MotorHeat Exchanger Coil Control PCBCompressor Fan Motor2-3.Other Component Specifications CS-KS24NKU 3. DIMENSIONAL DATACU-KS18NKUA Unit: inchmm CU-KS24NKUA4-1.Refrigerant Flow Diagram 4. REFRIGERANT FLOW DIAGRAMInsulation of Refrigerant Tubing 5. PERFORMANCE DATA 5-1.Temperature ChartsIndoor Unit CS-KS18NKU Outdoor Unit CU-KS18NKUA 1 Low pressure performance chart2 Operating current performance chart 3 Indoor discharge air performance chartIndoor Unit CS-KS24NKU Outdoor Unit CU-KS24NKU 1 Low pressure performance chart2 Operating current performance chart 3 Indoor discharge air performance chartIndoor Unit CS-KS24NKU Outdoor Unit CU-KS24NKUA 1 Low pressure performance chart2 Operating current performance chart 3 Indoor discharge air performance chartCS-KS18NKU 5-2.Cooling CapacityOutdoor Unit CU-KS18NKU / CU-KS18NKUA Outdoor Unit : CU-KS24NKU / CU-KS24NKUA CS-KS24NKUOutdoor Unit : CU-KS18NKUA 5-3.Cooling Capacity Low AmbientPower Supply : 230V Single Phase 60Hz Indoor Unit : CS-KS18NKUCU-KS24NKUA CS-KS24NKU5-4.Air Throw Distance Charts Cooling CS-KS18NKU 6-1.Electrical Characteristics6. ELECTRICAL DATA Indoor UnitCS-KS24NKU Indoor UnitOutdoor Unit CU-KS24NKUA CONTROLLER 6-2.Electric Wiring DiagramsASSY LAMPOutdoor Unit CU-KS18NKU CU-KS18NKUA and/or cleaning any electrical partsand/or cleaning any electrical parts 1P-CONNECTORWHT and/or cleaning any electrical parts7-1.Address Setting of the Remote Control Unit 7. MAINTENANCEHow to Connect How to DisconnectPull the cover upward SENSOR DRY 8. FUNCTIONS8-1.Operation Functions Emergency operationLamp colors HIGH POWERTimer backup NIGHT SETBACKCT Peak current cut-offcontrol Compressor discharge temperature control8-2.Protective Functions Freeze prevention9-2.Method of Self-Diagnostics 9. TROUBLESHOOTING BEFORE CALLING FOR SERVICEPROCEDURE 3 QUIET lamp OPERATION button INDOOR UNIT 1 OPERATION lamp 2 TIMER lampREMOTE CONTROL receiver DIAGNOSIS CONTENTSNormal 2If the self-diagnosticsfunction fails to operateCheck the power voltage Blown Check the indoor unit Is the fuse blown?9-3.Checking the Indoor and Outdoor Units 3-1Condition: E01 < Before the Operation >Continued from the previous page A 3-2Condition E12 9-4-1.Indoor Fan Motor 9-4.Trouble Diagnosis of Fan MotorRemedy for symptom 3 to 9-4-2.Outdoor Fan MotorDiagnostic procedure Diagnostic resultsLocations most susceptible to noise Locations most susceptible to noiseTrouble Correction10-1-2.Indoor Unit 10-1-1.Power Supply Cord10. CHECKING ELECTRICAL COMPONENTS 10-1.Measurement of Insulation ResistanceFig. 10-2.Checking Continuity of Fuse on PCB Assy11-1-3.Characteristics SPECIAL PRECAUTIONS WHEN SERVICING UNIT11-1.Characteristics of New Refrigerant R410A 11-1-1.What is New Refrigerant R410A?No addition of compressor oil for R410A 11-2.Checklist before ServicingTubing precautions Size of flare11-3.Tools Specifically for R410A 11-4.Tubing Installation Procedures11-5.In Case of Compressor Malfunction 11-5-1.Procedure for Replacing CompressorPage 11-6.In Case Refrigerant is Leaking 11-8-1.Use of Existing Units 11-7-1.When Tubes are Extended11-7.Charging Additional Refrigerant 11-8. Retro-FittingExisting SystemsCS-KS18NKU+ CU-KS18NKU+ CU-KS18NKUA APPENDIX A Operating InstructionsCS-KS24NKU+ CU-KS24NKU+ CU-KS24NKUA CU-KS18NKU Operating InstructionsSplit System Air Conditioner CS-KS18NKUPRODUCT INFORMATION FEATURESCONTENTS SAFETY PRECAUTIONSSAFETY INSTRUCTIONS INSTALLATION LOCATIONELECTRICAL REQUIREMENTS •Refrigerant gas leakage may cause fire Air Intakes INDOOR UNIT Air Outlet NAMES OF PARTSRemote Controller Drain Hose Refrigerant Tubes Remote ControllerUNIT DISPLAY AND OPERATION BUTTON REMOTE CONTROLLER DISPLAY REMOTE CONTROLLER REMOTE CONTROLLER CONTINUED REMOTE CONTROLLER CONTINUED USING THE REMOTE CONTROLLERUSING THE REMOTE CONTROLLER CONTINUED 1. Operation OPERATION WITH THE REMOTE CONTROLLER2.Adjusting the Fan Speed OPERATION WITH THE REMOTE CONTROLLER CONTINUED3.Fan Only temperature 4. Night Setback ModeOPERATION WITH THE REMOTE CONTROLLER CONTINUED Setting5. QUIET Mode 6. HIGH POWER ModeOPERATION WITH THE REMOTE CONTROLLER CONTINUED Cooling Operation Remote ControllerSPECIAL REMARKS ‘‘DRY’’ Operation1.How to set the present time SETTING THE TIMERREPEAT timer SETTING THE TIMER CONTINUEDTIPS FOR ENERGY SAVING USING THE 1-HOUROFF TIMERADJUSTING THE AIRFLOW DIRECTION CARE AND CLEANING OPERATION WITHOUT THE REMOTE CONTROLLERCARE AND CLEANING CONTINUED CARE AND CLEANING CONTINUED WIRED REMOTE CONTROLLERWashing the grille with water Possible Cause TROUBLESHOOTING BEFORE CALLING FOR SERVICEOPERATING RANGE TroubleIndoor Unit SPECIFICATIONSModel No Outdoor UnitCS-KS24NKU+ CU-KS24NKU+ CU-KS24NKUA INSTALLATION INSTRCTIONSAPPENDIX B CS-KS18NKU+ CU-KS18NKU+ CU-KS18NKUAThis air conditioner uses the refrigerant R410A ContentsIn Case of Improper Installation SPECIAL PRECAUTIONSWhen Transporting When Installing…accidentally When ServicingOthers fins of the outdoor unit. You may get injured1-3.Optional Copper Tubing Kit 1. General1-1.Tools Required for Installation not supplied 1-2.Accessories Supplied with Unit Table2. Installation Site Selection About AboutBack FrontFig. 5f Fig. 5g For Air Intake Air Intake BaffleAir Discharge Baffle 1 Recommended dimensions of the baffle plates2. Air Discharge Baffle 3 Installation procedure4 Precautions for installation 1. Air Intake Baffle3-2.Make a Hole 3. How to Install the Indoor Unittrical wiring or conduits are 3-1.Remove the Rear Panel from the Unitb If Block, Brick, Concrete or Similar Type Wall 3-3.Install the Rear Panel on the WallTable a If Wooden WallFig. 19b 3-4.Remove the Grille to Install the Indoor UnitHow to remove the grille How to replace the grilleFig. 3-6.Wiring InstructionsGeneral precautions on wiring 3-5.Shape the Indoor Side Tubing3-7.Recommended Wire Length and Diameter Top of conduit connector 3-8.Wiring Instructions for Inter-unitConnectionsPlasticcover Wiring 10 25 cm Inter-unitwiring Earth plate Lock nutHow to connect wiring to the terminal Fig. 37b 3-9.MountingRight-sidetubing Fig. 37aLeft-sidetubing To unmount indoor unit 4-1.Wiring Instructions for the Outdoor Unit 4. How to Install the Outdoor UnitFig. 5-1.Use of the Flaring Method 5. Refrigerant Tubing5-2.Flaring Procedure with a Flare Tool 5-3.Caution before Connecting Tubes TightlyTable those used in automobile tires 6. Air PurgingAir Purging with a Vacuum Pump for Test Run tem. The valve core is similar toPage Fig. 59a Fig. 59b How to Test Run the Air ConditionerFig. 59c Pump Down Procedure Basic Functions of the Service ValvesPump Down When opening or closing the service valve stemFig. 60d Service Valve Connections7. Remote Controller Installation Position Fig. 60cFig. 8. Address Switch8-1.Address Setting of the Remote Controller Fig.Page DC1111-0

Operating Instructions

Split System Air Conditioner

Model No.

Indoor Units

Outdoor Units

CS-KS18NKU

CU-KS18NKU

CS-KS24NKU

CU-KS18NKUA

CU-KS24NKU

CU-KS24NKUA