Panasonic CU-3KE19NBU, CS-MKE9NB4U, CU-4KE31NBU, CU-4KE24NBU, CS-MKE12NB4U, CS-KE18NB4UW Air filter

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Air intake grille

Air filter

The air filter collects dust and other particles from the air and should be cleaned once every 6 months.

If the filter gets blocked, the efficiency of the air conditioner drops greatly.

NOTE

The frequency with which the filter should be cleaned depends on the environment in which the unit is used.

How to remove the filter

1.Slide the two latches of the air intake grille with your thumbs in the direction of the arrow to open the grille.

Latch

 

Ceiling

Air intake grille hinge

panel

 

2.Open the air intake grille downward.

Air intake grille

3.Press the tabs on both sides of the air filter (indicated with marks on the grill) to release the filter, and then, lift and pull the filter up and out using the tabs to remove it.

Safety cord

Air filter

4.Use a vacuum cleaner to remove light dust. If there is sticky dust on the filter, wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it.

5.Insert the filter correctly again inside the grille, close the grille letting the latches slide towards the outside and fix again the latch.

How to remove the air intake grille

1.Open the air intake grille.

2.Detach the safety cord from the frame (remember to attach it again after cleaning or maintenance).

3.Hold on the air intake grille and pull it towards you to detach the two air intake grille hinges.

4.Clean the grille gently using a soft sponge, or the like. Then dry it with care.

Neutral detergent may be used to remove stubborn dirt. Then rinse thoroughly with water and dry it.

Air intake grille hinge

Safety cord

• When cleaning the air filter, never

CAUTION remove the safety cord. If it is necessary to remove it for servicing and maintenance inside, be sure to reinstall the safety cord securely (hook on the grille side) after the work.

When the air intake grille has been opened, rotating parts (such as the fan), electrically charged areas, etc. will be exposed in the unit’s opening. Bear in mind the dangers that these parts and areas pose, and proceed with the work carefully.

Periodically check the outdoor unit to see if the air outlet or air intake is clogged with dirt or soot.

Care: After a prolonged idle period

Check the indoor and outdoor unit air intakes and outlets for blockage; if there is a blockage, remove it.

Care: Before a prolonged idle period

Operate the fan for half a day to dry out the inside.

Disconnect the power supply and also turn off the circuit breaker.

Clean the air filter and replace it in its original position.

Outdoor unit internal components must be checked and cleaned periodically.

Contact your local dealer for this service.

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Contents 17,500BTU / h 11,900BTU / hSafety Precautions Prohibit Table of Contents CZ-RD515U Applicable MULTI-OUTDOOR Units Operating Range Temperature Indoor Air Intake Temp Outdoor Air Intake TempUnit Specifications SpecificationsIndoor Unit CS-MKE9NB4U & CZ-18BT1U 208V Indoor UnitIndoor Unit CS-MKE12NB4U & CZ-18BT1U CS-MKE12NB4U & CZ-18BT1U Indoor Unit CS-KE18NB4UW & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U Indoor Unit Major Component SpecificationsIndoor Unit Body CS-MKE9NB4U Indoor Unit Panel CZ-18BT1UCB-CS-MKE12NB4U Indoor Unit Body CS-MKE12NB4UCB-CS-KE18NB4U Indoor Unit Body CS-KE18NB4UWCS-MKE12NB4U & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U Other Component SpecificationsView Dimensional DataIndoor Unit CS-KE18NB4UW & CZ-18BT1U Indoor unit Refrigerant Flow DiagramElectrical Data Electric Wiring DiagramsDisassembly Procedure MaintenanceDisconnect the connectors in the control box Remove the air intake grillRemove the ceiling panel Remove the power box and control box Remove the indoor air temperature sensorScrew Ground cable CN07 CN03 CN09 CN06 Remove the main body lower section Remove the heat exchanger sensor Remove the drain pump and float switchRemove the heat exchanger Remove the turbo fan and fan motorOperation Functions FunctionsEmergency operation Auto cooling/heating operationLamp colors Timer backupOverload prevention during heating Protective FunctionsFreeze prevention Cold-air prevention during heatingPrecautions before Performing Inspection or Repair Troubleshooting Before Calling for ServiceMethod of Self-Diagnostics Indoor Unit Self-diagnostics LampsChecking the Indoor and Outdoor Units Using the TEST/T-RUN terminalsReplace the controller Replace the circuit board or the fuseOff Blinking Illuminated Serial Communication Error Identification ProcedureBefore the Operation Condition E01From the previous page a Condition E12 Indoor Fan Motor Trouble Diagnosis of Fan MotorNoise malfunction Noise Malfunction and Electromagnetic InterferenceElectromagnetic interference Locations most susceptible to noise Trouble CorrectionPage CS-MKE9NB4U & CZ-18BT1U CS-MKE12NB4U & CZ-18BT1U Appendix aModel No Indoor Units CZ-18BT1UCeiling Panel Contents FeaturesSafety Precautions Product InformationSafety Instructions Installation LocationElectrical Requirements AvoidUnit Display and Operation Button Names of PartsSymbols Remote Controller DisplayRemote Controller Temperature setting buttons Temp HR. Timer button 1-HOUR OFF TimerMode selector button SensorSingle/Multiple switch Using the Remote ControllerAutomatic Operation Operation with the Remote ControllerManual Operation StepNight Setback Mode Adjusting the Fan SpeedHigh Power Mode Special Remarks Setting the TimerHow to set the on time How to set the OFF timeHow to set daily ON/OFF repeat timer 1030 pm 710 am 1100 am Present timeAdjusting the Airflow Direction Using the 1-HOUR OFF TimerHour OFF Timer Operation together with the daily ON/OFF repeat timerWhen the air conditioner is not running Care and CleaningCleaning the flaps Cleaning the main unit and Remote ControllerHow to remove the air intake grille How to remove the filterAir filter Care After a prolonged idle periodWired Remote Controller TroubleshootingOperating Range Model No Indoor Unit SpecificationsModel No Outdoor Unit Model No Ceiling PanelCS-KE18NB4UW & CZ-18BT1U Appendix BCU-KE12NK1 CS-KE12NB41CS-KE18NB4UW CU-KE18NKU CZ-18BT1UFan Only Installation Location DRY orange, Cool green and FAN green Remote Controller Display Remote Controller FAN Using the Remote Controller Operation with the Remote Controller Fan Only Special Remarks How to set the OFF time Sweep Cool Drysweep FAN Heat Care and Cleaning Air filter Max Min For Single use For Multiple Use Model No Outdoor Unit Indoor Unit For Single useCS-KE12NB41 Model No Ceiling Panel CZ-18BT1UFor Multiple use Page 852-6-4190-585-00-1 For Indoor Unit ContentsPlease Read Before Starting Others When ServicingAccessories Supplied with Unit Table Tools Required for Installation not suppliedGeneral Optional Copper Tubing KitAdditional Materials Required for Installation Installation Site SelectionIndoor Unit  direct sunlightEmbedding the Tubing and Wiring Preparation for Suspending How to Install the Indoor UnitSuspending the Indoor Unit Placing the Unit Inside the Ceiling Attach so that the hose band Installing the Drain PipingFastener is on the side Drain port10a Checking the DrainageIndoor unit Gaps Ceiling surface Ceiling panel Installing the Ceiling PanelAttaching the air-intake grille Wiring the Ceiling Panel and the IndicatorWhen Removing the Ceiling Panel for Servicing Checking After InstallationAdjusting the Auto Flap Wiring Instructions General precautions on wiringFor Outdoor Unit  For solid core wiring or F-cable How to connect wiring to the terminal For Indoor Unit For stranded wiring How to Test Run the Air Conditioner Rear side Remote control holder Remote Controller Installation PositionTo take out the remote controller, pull it forward Mounting on a WallAddress Setting of the Remote Controller Address SwitchInstallation Check Sheet Connecting a Home Automation DeviceCZ-RD515U Appendix DModel No. CZ-RD515U Operating Instructions Wired Remote ControllerAutomatic Switching between Cooling and Heating Installation Location SET button Timer and Present Time setting buttonsTimer Select button Remote Controller Display Automatic Operation Only for COOL/DRY/HEAT Model Heating Mode Only for COOL/DRY/HEAT Model Remote Controller DisplayProgrammed Backup functionDaily on / OFF 910 pm 710 am 1130 pm Present timeUsing the 1-HOUR OFF Timer Page Appendix E Installation Instructions CZ-RD515U Remote controller installation guidelines Parts supplied with the remote controllerHow to install the remote controller Installation locationInstalling directly onto the wall Installing with in-wall junction boxHow to wire the remote controller WI1011-0 Page DC1111-0
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CZ-18BT1U, CS-KE18NB4UW, CS-MKE12NB4U, CU-3KE19NBU, CU-4KE24NBU 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.