Panasonic CZ-18BT1U, CU-KE12NK1 Care and Cleaning, When the air conditioner is not running

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OPERATION WITHOUT THE REMOTE CONTROLLER

INDOOR UNIT

OPERATION button

OPERATION lamp

If you have lost the remote controller or it has trouble, follow the steps below.

When the air conditioner is not running

CARE AND CLEANING

• Cleaning and maintenance operations must be carried out by specially trained personnel.

While working in high places, slipping or falling may result in serious injury.

For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning.

Do not pour water on the indoor unit to clean it. This will damage the internal components and cause an electric shock hazard.

Ceiling panel (Indoor Unit)

Clean the ceiling panel of the indoor unit with a vacuum cleaner brush, or wipe it with a clean, soft cloth.

If it is stained, use a clean cloth moistened with a mild liquid detergent. When cleaning it, be careful not to force the flaps out of place.

Each time the OPERATION button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp. Press the button and select the lamp color that suits your preference for operation.

Cooling operation

 

Heating

 

Stop

 

 

(green)

 

operation (red)

(lamp off)

NOTE

The temperature is set to the room temperature minus 4°F during the cooling operation and to the room temperature plus 4°F during

CAUTION

Never use solvents, or harsh chemicals when cleaning the indoor unit. Do not wipe the plastic casing using very hot water.

Some metal edges and the fins are sharp and may cause injury if handled improperly; be especially careful when you clean these parts.

The internal coil and other components of the outdoor unit must be cleaned every year. Consult your dealer or service center.

the heating operation, and the fan speed and flap are set to Auto.

Cleaning the flaps

The air outlet flap can be removed and washed with water.

Be sure to always stop operation before removing the flap.

After washing with water, allow it to dry, and then remount it.

CAUTION

Do not move the flap with your hands.

When using a footstool or the like, be careful not to let it tip over.

Cleaning the main unit and Remote Controller

Wipe clean using a soft, dry cloth.

To remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °F, wring thoroughly, and then wipe.

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Contents Outdoor Model No. Product Code No 852 361Safety Precautions Prohibit Table of Contents 11-2 11-411-7 11-8Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Operating RangeSpecifications Unit SpecificationsIndoor Unit CS-KE12NB41 & CZ-18BT1UDimensions & Weight Indoor Unit Dimensions & Weight Outdoor UnitCU-KE18NKU 230VCU-KE18NKU 208V CZ-KE18NB4UW & CZ-18BT1U Major Component Specifications Indoor UnitIndoor Unit Body CS-KE12NB41 Indoor Unit Panel CZ-18BT1UIndoor Unit Body CS-KE18NB4UW CB-CS-KE18NB4UOutdoor Unit Outdoor Unit CU-KE12NK1Compressor External FinishOutdoor Unit CU-KE18NKU Other Component Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1UIndoor air temp sensor ModelKTEC-35-S98 Outdoor air temp sensorDimensional Data Unit inch mmUnit inch mm 852-0-0010-12700-0 Unit inch mm 852-0-0010-13200-0 Refrigerant Flow Diagram Refrigerant Flow DiagramOutdoor unit Outdoor unit Temperature Charts Performance DataIndoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 High pressure performance chart Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU At wide Pressure Power Supply 115V Single Phase 60Hz Cooling Capacity Cooling CapacityCU-KE12NK1 Power Supply 230V Single Phase 60Hz Cooling Capacity CS-KE18NB4UW & CZ-18BT1UCooling Capacity Low Ambient 740 11,860 800 24.4 Power Supply 115V Single Phase 60Hz Heating Capacity Heating CapacityTH Total Heating Capacity BTU/h Power Supply 230V Single Phase 60Hz Heating Capacity Electrical Characteristics Electrical DataCooling HeatingVoltage230V Cooling Voltage208V CoolingCS-KE12NB41 18BT1U8FA2-5250-46900-2 Outdoor Unit CU-KE12NK1 8FA2-5251-12200-2 Controller Maintenance Address Setting of the Remote ControllerHow to Disconnect How to ConnectDisassembly Procedure Disconnect the connectors in the control boxRemove the air intake grill Remove the ceiling panel Remove the indoor air temperature sensor Remove the power box and control boxScrew Ground cable CN07 CN03 CN09 CN06 Remove the main body lower section Remove the drain pump and float switch Remove the heat exchanger sensorRemove the turbo fan and fan motor Remove the heat exchangerFunctions Operation FunctionsEmergency operation Auto cooling/heating operationTimer backup Lamp colorsCompressor discharge temperature control Protective FunctionsOverload prevention during heating Freeze preventionDefrost detection and release CT Peak current cut-off controlReverse-Cycle Defrosting Troubleshooting Before Calling for Service Precautions before Performing Inspection or RepairMethod of Self-Diagnostics Self-diagnostics Lamps Indoor UnitUsing the TEST/T-RUN terminals Checking the Indoor and Outdoor UnitsReplace the controller Replace the circuit board or the fuseSerial Communication Error Identification Procedure Off Blinking IlluminatedBefore the Operation Condition E01From the previous page a Condition E12 Trouble Diagnosis of Fan Motor Indoor Fan MotorOutdoor Fan Motor Noise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Locations most susceptible to noise Trouble CorrectionPower Supply Cord Checking Electrical ComponentsMeasurement of Insulation Resistance Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy Refrigerant R410A Special Precautions When Servicing Unit Characteristics of New Refrigerant R410AWhat is New Refrigerant R410A? CharacteristicsChecklist before Servicing Tubing Installation Procedures Tools Specifically for R410AProcedure for Replacing Compressor Case of Compressor MalfunctionConfiguration and characteristics of cylinders Amount in the charging cylinder is less than 20%Example To prevent the compositionCase Refrigerant is Leaking Welding leaking pointsRecharging When Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing UnitsPage Appendix a CS-KE12NB41CU-KE12NK1 CS-KE18NB4UW CU-KE18NKU CU-3KE19NBU CU-4KE24NBU CU-4KE31NBUCZ-18BT1U Features ContentsSafety Precautions Product InformationInstallation Location Safety InstructionsElectrical Requirements AvoidNames of Parts Unit Display and Operation ButtonRemote Controller Display SymbolsRemote Controller HR. Timer button 1-HOUR OFF Timer Temperature setting buttons TempMode selector button SensorUsing the Remote Controller Single/Multiple switchOperation with the Remote Controller Automatic OperationManual Operation StepAdjusting the Fan Speed Night Setback ModeHigh Power Mode Fan OnlySetting the Timer Special RemarksHow to set the OFF time How to set the on timeHow to set daily ON/OFF repeat timer 1030 pm 710 am 1100 am Present timeUsing the 1-HOUR OFF Timer Adjusting the Airflow DirectionHour OFF Timer Operation together with the daily ON/OFF repeat timerCare and Cleaning When the air conditioner is not runningCleaning the flaps Cleaning the main unit and Remote ControllerHow to remove the filter How to remove the air intake grilleAir filter Care After a prolonged idle periodTroubleshooting Wired Remote ControllerOperating Range Specifications For Single useModel No Outdoor Unit Indoor Unit CS-KE12NB41Model No Indoor Unit Model No Outdoor UnitPage Appendix B Installation Instructions Installation Instructions Split System Air Conditioner ContentsPlease Read Before Starting When Servicing OthersSource, it can produce dangerously toxic gas Fins of the outdoor unit. You may get injuredTools Required for Installation not supplied Accessories Supplied with Unit TableGeneral Optional Copper Tubing KitInstallation Site Selection Additional Materials Required for InstallationSolid base must not cover Hole of the bottom plateHow to Install the Indoor Unit Preparation for SuspendingSuspending the Indoor Unit Placing the Unit Inside the CeilingInstalling the Drain Piping  Attach so that the hose bandFastener is on the side Drain portChecking the Drainage 10aInstalling the Ceiling Panel Indoor unit Gaps Ceiling surface Ceiling panelWiring the Ceiling Panel and the Indicator Attaching the air-intake grilleChecking After Installation When Removing the Ceiling Panel for ServicingAdjusting the Auto Flap Wiring Instructions General precautions on wiringDisconnect switch may be required by national or local codes Always comply with national and local code requirementsWiring Instructions for Inter-unit Connections How to connect wiring to the terminal For Indoor UnitFor Outdoor Unit  For solid core wiring or F-cable How to Install the Outdoor Unit  For stranded wiringFirst refer to . Installation Site Selection Wiring Instructions for the Outdoor UnitFlaring Procedure with a Flare Tool To 0.5 mm Adjust so that the amount of tubeRefrigerant Tubing Use of the Flaring MethodConnecting Tubing between Indoor and Outdoor Units Insulation of Refrigerant TubingTaping the flare nuts Insulation materialFinishing the Installation Air PurgingTaping the Tubes  Air Purging with a Vacuum Pump for Test RunSoap with a clean cloth Degrees 1/4 turn for 10 seconds, and then turnStem clockwise to close it again. Fig Be sure to completely insert the hexHow to Test Run the Air Conditioner  Basic Functions of the Service Valves  Pump Down Service Valve Connections Remote Controller Installation PositionAddress Switch Address Setting of the Remote ControllerAppendix C CZ-RD515UOperating Instructions Wired Remote Controller Model No. CZ-RD515UAutomatic Switching between Cooling and Heating Installation Location Timer and Present Time setting buttons SET buttonTimer Select button Remote Controller Display Automatic Operation Only for COOL/DRY/HEAT Model Remote Controller Display Heating Mode Only for COOL/DRY/HEAT ModelBackup function ProgrammedDaily on / OFF 910 pm 710 am 1130 pm Present timeUsing the 1-HOUR OFF Timer Page Appendix D Installation Instructions CZ-RD515U Parts supplied with the remote controller Remote controller installation guidelinesHow to install the remote controller Installation locationInstalling with in-wall junction box Installing directly onto the wallHow to wire the remote controller How to Test Run the Air Conditioner WI1011-0Page DC1111-0
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CZ-18BT1U, CS-KE12NB41, CS-KE18NB4UW, CU-KE18NKU, CU-KE12NK1 specifications

The Panasonic CS-KE18NB4UW and CU-KE12NK1, along with the CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU, represent a suite of advanced air conditioning solutions built with cutting-edge technologies designed to provide optimal comfort, energy efficiency, and air quality in various settings.

One of the standout features of this lineup is the inverter technology. Inverter air conditioners adjust the compressor speed to maintain the desired temperature efficiently. This leads to significant energy savings compared to traditional air conditioners, which tend to frequently cycle on and off, consuming more power. By continuously regulating the temperature, the Panasonic units not only save electricity but also prolong the lifespan of the compressor.

Another noteworthy characteristic is the nanoe™ technology integrated into some of these models. Nanoe™ technology uses hydroxyl radicals to purify the air, minimizing harmful bacteria and allergens. This makes the Panasonic units particularly suitable for users with allergies or respiratory issues, providing a cleaner and healthier indoor environment.

In terms of design, these models are sleek and compact, allowing them to fit seamlessly into any room decor, whether in a home, office, or commercial space. The quiet operation is another advantage, making them ideal for bedrooms and study areas where minimal noise is essential.

Furthermore, the CS-KE18NB4UW and CU-KE12NK1 offer a range of powerful cooling and heating capacities, making them versatile solutions for various climate conditions. The cold climate performance ensures consistent heating in colder regions, while the robust cooling capabilities make them perfect for hot summer months.

The user-friendly features include a smart remote control system, allowing users to adjust settings with ease from a distance. Some models are equipped with Wi-Fi capability, enabling integration with smart home systems for enhanced control and programmability.

In conclusion, the Panasonic CS-KE18NB4UW, CU-KE12NK1, CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU air conditioning units exemplify innovation and efficiency. With their inverter technology, air purification features, compact designs, and smart functionalities, they stand out as ideal choices for maintaining comfortable and healthy indoor environments throughout the year.