Manuals / Panasonic / Household Appliance / Air Conditioner

Panasonic CS-KE18NB4UW Refrigerant Flow Diagram, Indoor Unit CS-MKE9NB4U& CZ-18BT1U, Indoor unit

Models: CZ-18BT1U CS-KE18NB4UW CS-MKE12NB4U CU-3KE19NBU CU-4KE24NBU CU-4KE31NBU CS-MKE9NB4U

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4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Indoor Unit CS-MKE9NB4U & CZ-18BT1U

CS-MKE12NB4U & CZ-18BT1U

Indoor unit

O.D. 3/8" (9.52 mm)

Heat exchanger
Strainer
O.D. 1/4" (6.35 mm)	Cooling cycle
	Cooling cycle
	Heating cycle

Indoor Unit CS-KE18NB4UW & CZ-18BT1U

Indoor unit

Heat exchanger

Strainer

O.D. 1/2" (12.7 mm)

	O.D. 1/4" (6.35 mm)
	O.D. 1/4" (6.35 mm)	Cooling cycle
		Cooling cycle
		Heating cycle

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Panasonic CS-KE18NB4UW Refrigerant Flow Diagram, Indoor Unit CS-MKE9NB4U& CZ-18BT1U, CS-MKE12NB4U& CZ-18BT1U, Indoor unit

Contents

DC INVERTER MULTI-SYSTEMAIR CONDITIONER INDOOR UNIT : CS-MKE9NB4U& CZ-18BT1UCS-MKE12NB4U& CZ-18BT1U CS-KE18NB4UW& CZ-18BT1U TECHNICAL & SERVICE MANUALSAFETY PRECAUTIONS which may cause a unit breakdown 6. MAINTENANCE TABLE OF CONTENTS2. SPECIFICATIONS 4. REFRIGERANT FLOW DIAGRAMCZ-RD515U CZ-RD515UAPPLICABLE MULTI-OUTDOORUNITS Outdoor Air Intake Temp 1. OPERATING RANGETemperature Indoor Air Intake Temp2-1-1. Indoor Unit CS-MKE9NB4U& CZ-18BT1U 2. SPECIFICATIONS2-1.Unit Specifications Dimensions & Weight Indoor UnitType Dimensions & Weight Indoor UnitCS-MKE9NB4U& CZ-18BT1U <208V>Type Dimensions & Weight Indoor Unit2-1-2. Indoor Unit CS-MKE12NB4U& CZ-18BT1U <230V>Type Dimensions & Weight Indoor UnitCS-MKE12NB4U& CZ-18BT1U <208V>Type Dimensions & Weight Indoor Unit2-1-3. Indoor Unit CS-KE18NB4UW& CZ-18BT1U <230V>Type Dimensions & Weight Indoor UnitCS-KE18NB4UW& CZ-18BT1U <208V>Fan Motor 2-2.Major Component Specifications2-2-1.Indoor Unit Control PCBHeat Exchanger Coil Control PCBFan Motor Drain PumpHeat Exchanger Coil Control PCBFan Motor Drain PumpIndoor Unit CS-MKE9NB4U& CZ-18BT1U 2-3.Other Component SpecificationsTemperature F C Temperature F CUnit inch mm 3. DIMENSIONAL DATAIndoor Unit CS-MKE9NB4U& CZ-18BT1U CS-MKE12NB4U& CZ-18BT1U CS-KE18NB4UW& CZ-18BT1UCS-MKE12NB4U& CZ-18BT1U 4-1.Refrigerant Flow Diagram4. REFRIGERANT FLOW DIAGRAM Indoor Unit CS-MKE9NB4U& CZ-18BT1UCS-MKE12NB4U& CZ-18BT1U CS-KE18NB4UW& CZ-18BT1U 5-1.Electric Wiring Diagrams5. ELECTRICAL DATA Indoor Unit CS-MKE9NB4U& CZ-18BT1UFig.1 6. MAINTENANCE6-1.Disassembly Procedure 6-1-1.Remove the air intake grillFig.8 6-1-3.Remove the ceiling panelFig.6 Fig.7Fig.12 6-1-4.Remove the indoor air temperature sensor6-1-5.Remove the power box and control box Fig.10Screw Ground cable Fig.13Fig.14 Fig.15 24Fig.17 6-1-6.Remove the main body lower sectionFig.18 Fig.20 6-1-8.Remove the drain pump and float switch6-1-7.Remove the heat exchanger sensor Fig.19Fig.25 6-1-9.Remove the turbo fan and fan motor6-1-10.Remove the heat exchanger Fig.23AUTO cooling/heating operation 7. FUNCTIONS7-1.Operation Functions Emergency operationLamp colors HIGH POWERTimer backup NIGHT SETBACKCold-airprevention during heating 7-2.Protective FunctionsOverload prevention during heating Freeze prevention8-2.Method of Self-Diagnostics 8. TROUBLESHOOTING BEFORE CALLING FOR SERVICEPROCEDURE REMOTE CONTROL receiver 1 Self-diagnosticsLampsTIMER lamp HIGH POWER lampCheck the indoor unit Is the fuse blown? 8-3.Checking the Indoor and Outdoor Units2If the self-diagnosticsfunction fails to operate Using the TEST/T-RUNterminals3-1Condition: E01 Before the OperationContinued from the previous page A 3-2Condition: E12 Diagnostic results 8-4.Trouble Diagnosis of Fan Motor8-4-1.Indoor Fan Motor Diagnostic procedureTrouble 1 Noise malfunction2 Electromagnetic interference Locations most susceptible to noisePage Operating Instructions APPENDIX ACS-MKE9NB4U& CZ-18BT1U CS-MKE12NB4U& CZ-18BT1U CZ-18BT1U Split System Air ConditionerCS-MKE9NB4U CU-3KE19NBU CS-MKE12NB4U CU-4KE24NBU CU-4KE31NBUPRODUCT INFORMATION FEATURESCONTENTS SAFETY PRECAUTIONSAvoid INSTALLATION LOCATIONSAFETY INSTRUCTIONS ELECTRICAL REQUIREMENTSAir Outlet NAMES OF PARTSUNIT DISPLAY AND OPERATION BUTTON Air IntakeSymbols REMOTE CONTROLLER DISPLAYCANCEL button SENSOR button REMOTE CONTROLLERHIGH POWER button ON TIME/OFF TIME setting buttons Advance buttonHEAT 1 HR. TIMER button 1-HOUROFF TIMERTemperature setting buttons TEMP AUTOHOW TO USE THE REMOTE CONTROLLER USING THE REMOTE CONTROLLERHOW TO INSTALL BATTERIES S/M Single/Multiple switchSTEP STEP OPERATION WITH THE REMOTE CONTROLLER1. Automatic Operation 2. Manual OperationA. Automatic fan speed 3. Adjusting the Fan Speed5. HIGH POWER Mode 4. Night Setback Mode1. How to set the present time SETTING THE TIMERPower failure during operation Remote ControllerOperation 2. How to set the OFF time3. How to set the ON time 4. How to set daily ON/OFF repeat timerTIPS FOR ENERGY SAVING USING THE 1-HOUROFF TIMERADJUSTING THE AIRFLOW DIRECTION 1. 1-HourOFF TimerCleaning the flaps CARE AND CLEANINGOPERATION WITHOUT THE REMOTE CONTROLLER When the air conditioner is not runningAir intake grille hinge Safety cord How to remove the filterHow to remove the air intake grille Safety cord Air filterOPERATING RANGE TROUBLESHOOTINGWIRED REMOTE CONTROLLER BEFORE CALLING FOR SERVICECS-MKE9NB4U SPECIFICATIONSModel No Indoor UnitCS-KE18NB4UW& CZ-18BT1U APPENDIX BOperating Instructions CU-KE18NKU CS-KE12NB41CU-KE12NK1 CS-KE18NB4UWPRODUCT INFORMATION FEATURESCONTENTS SAFETY PRECAUTIONSAvoid INSTALLATION LOCATIONSAFETY INSTRUCTIONS ELECTRICAL REQUIREMENTSAir Outlet NAMES OF PARTSUNIT DISPLAY AND OPERATION BUTTON Air IntakeSymbols REMOTE CONTROLLER DISPLAY1Operation mode AUTO HEAT MILD DRY COOL FAN CANCEL button SENSOR button REMOTE CONTROLLERHIGH POWER button ON TIME/OFF TIME setting buttons Advance buttonHEAT 1 HR. TIMER button 1-HOUROFF TIMERTemperature setting buttons TEMP AUTOHOW TO USE THE REMOTE CONTROLLER USING THE REMOTE CONTROLLERHOW TO INSTALL BATTERIES S/M Single/Multiple switchSTEP 1 Press the MODE selector button to OPERATION WITH THE REMOTE CONTROLLER1. Automatic Operation 2. Manual Operation3. Adjusting the Fan Speed 6. HIGH POWER Mode4. Fan Only 5. Night Setback Mode1. How to set the present time SETTING THE TIMERPower failure during operation Remote ControllerOperation 2. How to set the OFF time3. How to set the ON time 4. How to set daily ON/OFF repeat timerTIPS FOR ENERGY SAVING USING THE 1-HOUROFF TIMERADJUSTING THE AIRFLOW DIRECTION 1. 1-HourOFF TimerCleaning the flaps CARE AND CLEANINGOPERATION WITHOUT THE REMOTE CONTROLLER When the air conditioner is not runningAir intake grille hinge Safety cord How to remove the filterHow to remove the air intake grille Safety cord Air filterOPERATING RANGE TROUBLESHOOTINGWIRED REMOTE CONTROLLER BEFORE CALLING FOR SERVICEIndoor Unit SPECIFICATIONSModel No Outdoor UnitModel No SPECIFICATIONS CONTINUED•For Multiple use •For Multiple usePage APPENDIX C INSTALLATION INSTRUCTIONS5.REMOTE CONTROLLER INSTALLATION ContentsFor Indoor Unit 3. HOW TO INSTALL THE INDOOR UNITWhen Transporting SPECIAL PRECAUTIONSIn Case of Improper Installation WARNING When WiringOthers When Servicing1-3.Optional Copper Tubing Kit 1. General1-1.Tools Required for Installation not supplied 1-2.Accessories Supplied with Unit TableFig. 2. Installation Site Selection2-1.Indoor Unit AVOIDTable 2-2.Embedding the Tubing and Wiring3-3.Placing the Unit Inside the Ceiling 3. How to Install the Indoor Unit3-1.Preparation for Suspending 3-2.Suspending the Indoor UnitFig. 3-4.Installing the Drain PipingDo not use natural drainage Fig.3-5.Checking the Drainage utes after the FS 3P connector is reconnected3-6.How to Install the Ceiling Panel 3-6-1.Before Installing the Ceiling PanelFig. 3-6-2.Installing the Ceiling PanelFig. Fig.A. Attaching the corner cover 3-6-3.Wiring the Ceiling Panel and the IndicatorFig. Fig.General precautions on wiring 3-6-5.Checking After Installation3-6-7.Adjusting the Auto Flap 3-7.Wiring Instructionsa For Indoor Unit How to connect wiring to the terminalFor solid core wiring or F-cable For stranded wiringFig. Fig 4. How to Test Run the Air ConditionerFig. Mounting screws 5/32 5/8 4 16 mm included 5. Remote Controller Installation PositionRear side Remote control holder 5-1.Mounting on a WallFig. 6. Address Switch6-1.Address Setting of the Remote Controller Fig.8. Installation Check Sheet 7. Connecting a Home Automation DeviceCZ-RD515U APPENDIX DOperating Instructions Model No. CZ-RD515U Operating Instructions Wired Remote ControllerPRODUCT INFORMATION FEATURESCONTENTS SAFETY PRECAUTIONSAvoid INSTALLATION LOCATIONSAFETY INSTRUCTIONS ELECTRICAL REQUIREMENTSDisplay REMOTE CONTROLLERTemperature setting buttons TEMP Timer and Present Time setting buttonsHEAT 1 HR. TIMER button 1-HOUROFF TIMERTIMER SELECT button AUTOSymbols REMOTE CONTROLLER DISPLAY1Operation mode AUTO only for COOL/DRY/HEAT Model 2. Manual Operation 1.Automatic Operationonly for COOL/DRY/HEAT Model OPERATION WITH THE REMOTE CONTROLLERRemote Controller Remote Controller Display3. Adjusting the Fan Speed Power failure during operation2. How to set the OFF time 5. Backup functionSETTING THE TIMER 1. How to set the present timeADJUSTING THE AIRFLOW DIRECTION USING THE 1-HOUROFF TIMER1. 1-HourOFF Timer Page INSTALLATION INSTRUCTIONS APPENDIX ECZ-RD515U How to install the remote controller INSTALLATION INSTRUCTIONS Wired Remote ControllerParts supplied with the remote controller Remote controller installation guidelinesFig. 2-b A. Installing with in-walljunction boxB. Installing directly onto the wall Fig. 2-aFig. 8-b How to wire the remote controllerFig. Fig. 8-aFig. WI1011-0 Printed in China How to Test Run the Air ConditionerFig. Fig.Page DC1111-0