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

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Warning

If refrigerant gas blows off during the work, do not touch the refrigerant gas as it may cause frostbite.

 

 

Prohibit

If refrigerant gas leaks during the work, ventilate the room.

 

If refrigerant gas catches fire, harmful gas may be generated.

 

 

 

Do not mix any gas other than the specified refrigerant gas in the refrigerating cycle.

 

If air or other contaminants mix with the gas, pressure will become extremely high in the refrigerating cycle,

 

which may cause a unit breakdown."

Prohibit

 

 

When the welded section of the compressor intake or discharge pipe is to be disconnected, perform it in

 

a well-ventilated place after sufficiently recovering the refrigerant gas.

 

Any residue gas may jet out refrigerant or refrigerating machine oil, which may cause an injury.

 

 

 

When the work is to be performed in a high place (About 2 meters or more), make sure to wear a safety helmet,

 

gloves and safety belt. Insufficient safety gear may cause a serious injury in case of a fall.

 

 

 

When the unit is to be relocated, confirm that the new installation location has sufficient strength for the weight of the unit.

 

Insufficient strength of the installation location and incomplete installation work may cause an injury due to

 

the unit falling.

 

 

 

When the remote controller batteries are replaced, dispose of the old batteries out of the reach of children.

 

If a child swallows a battery, make sure that the child gets immediate medical attention.

 

 

 

Caution

Do not wash the air conditioner with water, as this may cause an electric shock or fire. Prohibit

For the repair work in places with high humidity or moisture, make sure to ground the unit.

Failure to do so may cause an electric shock.

Confirm that the component attachment position, wiring condition, soldering condition and connector connection are normal.

If not, it may cause overheating or fire.

Confirm that the temperature around the compressor is not too high, and then perform the repair work.

Failure to do so may cause a burn.

Perform welding work in a place with good ventilation.

If the work is performed in a poorly ventilated area, it might cause a lack of oxygen.

If the installation plate or attachment frame has deteriorated due to corrosion, etc., replace it.

Failure to do so may cause an injury due to the unit falling.

When the cleaning is to be performed, make sure to turn off the power and pull out the plug.

Touching the fan that is rotating at high speed may result in an injury.

When the indoor unit is to be removed, do not place it on an incline.

Doing so may cause wet furniture because water left inside may trickle down.

Prohibit

Do not hold the sharp end of the unit or the aluminum fins, as it may cause an injury to your hand or finger. Prohibit

After repairs, make sure to measure the insulation resistance and confirm that the value is 1 Mohm or more.

Any insulation error may cause an electric shock.

After repairs, make sure to check the drainage of the indoor unit.

Inappropriate drainage may cause wet furniture and floors due to water leakage.

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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 TempSpecifications Unit 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 Panel CZ-18BT1U Major Component SpecificationsIndoor Unit Indoor Unit Body CS-MKE9NB4UCB-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 DiagramsRemove the air intake grill MaintenanceDisassembly Procedure Disconnect the connectors in the control boxRemove 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 motorAuto cooling/heating operation FunctionsOperation Functions Emergency operationLamp colors Timer backupCold-air prevention during heating Protective FunctionsOverload prevention during heating Freeze preventionTroubleshooting Before Calling for Service Precautions before Performing Inspection or RepairMethod of Self-Diagnostics Indoor Unit Self-diagnostics LampsReplace the circuit board or the fuse Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Replace the controllerCondition E01 Serial Communication Error Identification ProcedureOff Blinking Illuminated Before the OperationFrom the previous page a Condition E12 Indoor Fan Motor Trouble Diagnosis of Fan MotorLocations most susceptible to noise Trouble Correction Noise Malfunction and Electromagnetic InterferenceNoise malfunction Electromagnetic interferencePage CS-MKE9NB4U & CZ-18BT1U CS-MKE12NB4U & CZ-18BT1U Appendix aCZ-18BT1U Model No Indoor UnitsCeiling Panel Product Information FeaturesContents Safety PrecautionsAvoid Installation LocationSafety Instructions Electrical RequirementsUnit Display and Operation Button Names of PartsSymbols Remote Controller DisplayRemote Controller Sensor HR. Timer button 1-HOUR OFF TimerTemperature setting buttons Temp Mode selector buttonSingle/Multiple switch Using the Remote ControllerStep Operation with the Remote ControllerAutomatic Operation Manual OperationAdjusting the Fan Speed Night Setback ModeHigh Power Mode Special Remarks Setting the Timer1030 pm 710 am 1100 am Present time How to set the OFF timeHow to set the on time How to set daily ON/OFF repeat timerOperation together with the daily ON/OFF repeat timer Using the 1-HOUR OFF TimerAdjusting the Airflow Direction Hour OFF TimerCleaning the main unit and Remote Controller Care and CleaningWhen the air conditioner is not running Cleaning the flapsCare After a prolonged idle period How to remove the filterHow to remove the air intake grille Air filterTroubleshooting Wired Remote ControllerOperating Range Model No Ceiling Panel SpecificationsModel No Indoor Unit Model No Outdoor UnitCS-KE18NB4UW & CZ-18BT1U Appendix BCZ-18BT1U CS-KE12NB41CU-KE12NK1 CS-KE18NB4UW CU-KE18NKUFan 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 Ceiling Panel CZ-18BT1U For Single useModel No Outdoor Unit Indoor Unit CS-KE12NB41For Multiple use Page 852-6-4190-585-00-1 For Indoor Unit ContentsPlease Read Before Starting Others When ServicingOptional Copper Tubing Kit Tools Required for Installation not suppliedAccessories Supplied with Unit Table General direct sunlight Installation Site SelectionAdditional Materials Required for Installation Indoor UnitEmbedding the Tubing and Wiring Placing the Unit Inside the Ceiling How to Install the Indoor UnitPreparation for Suspending Suspending the Indoor UnitDrain port Installing the Drain Piping Attach so that the hose band Fastener is on the side10a Checking the DrainageIndoor unit Gaps Ceiling surface Ceiling panel Installing the Ceiling PanelAttaching the air-intake grille Wiring the Ceiling Panel and the IndicatorWiring Instructions General precautions on wiring Checking After InstallationWhen Removing the Ceiling Panel for Servicing Adjusting the Auto FlapHow to connect wiring to the terminal For Indoor Unit For Outdoor Unit  For solid core wiring or F-cable For stranded wiring How to Test Run the Air Conditioner Mounting on a Wall Remote Controller Installation PositionRear side Remote control holder To take out the remote controller, pull it forwardAddress 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 Display910 pm 710 am 1130 pm Present time Backup functionProgrammed Daily on / OFFUsing the 1-HOUR OFF Timer Page Appendix E Installation Instructions CZ-RD515U Installation location Parts supplied with the remote controllerRemote controller installation guidelines How to install the remote controllerInstalling 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.