Panasonic CS-KE36NKU, CU-KE36NKU, CU-KE30NKU, CS-KE30NKU service manual Please Read Before Starting

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IMPORTANT!

Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

Carefully read this instruction booklet before beginning.

Follow each installation or repair step exactly as shown.

Observe all local, state, and national electrical codes.

Pay close attention to all warning and caution notices given in this manual.

When Transporting

Be careful when picking up and moving the indoor and out- door units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum fins on the air conditioner can cut your fingers.

When Installing…

Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

…In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

WARNING

CAUTION

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can result in personal injury or prod- uct or property damage.

…In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause dripping and water damage to walls and floors.

Keep the fire alarm and the air

CAUTION outlet at least 1.5 m away from the unit.

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improp- er installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

WARNING When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

‡'RQRWVXSSO\SRZHUWRWKHXQLWXQWLODOOZLULQJDQGWXELQJ are completed or reconnected and checked.

‡+LJKO\GDQJHURXVHOHFWULFDOYROWDJHVDUHXVHGLQWKLV system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death.

‡*URXQGWKHXQLW following local electrical codes.

‡&RQQHFWDOOZLULQJWLJKWO\/RRVHZLULQJPD\FDXVHRYHU heating at connection points and a possible fire hazard.

‡7RSUHYHQWSRVVLEOHKD]DUGVIURPLQVXODWLRQIDLOXUH

the unit must be grounded.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

…In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

…In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

‡:KHQSHUIRUPLQJpiping work do not mix air except for speci- fied refrigerant (R410A) in refrigeration cycle. It causes capacity down, and risk of explosion and injury due to high tension inside the refrige- rant cycle.

WARNING

‡5HIULJHUDQWJDVOHDNDJHPD\ cause fire.

‡'RQRWDGGRUUHSODFHUHIULJHUDQW other than specified type.

It may cause product damage, burst and injury etc.

‡9HQWLODWHWKHURRPZHOOLQWKHHYHQWWKDWUHIULJHUDQW gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas.

2

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Contents Outdoor Model No Product Code No CS-KE30NKU + CU-KE30NKU CS-KE36NKU + CU-KE36NKUIndoor Model No Product Code No 852 360Safety Precautions Prohibit Table of Contents Checking Electrical Components Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Operating RangeIndoor Unit SpecificationsUnit Specifications Outdoor Unit208V CS-KE36NKU 21.9 19.9 Indoor Unit Major Component SpecificationsIndoor Unit CS-KE30NKU Indoor Unit CS-KE36NKU CB-CS-KE36NKUBoard Outdoor UnitOutdoor Unit CU-KE30NKU CompressorOutdoor Unit CU-KE36NKU Other Component Specifications Dimensional Data Inchmm 194-00-1 Unit Indoor Unit CS-KE30NKU Outdoor Unit CU-KE30NKU Refrigerant Flow DiagramRefrigerant Flow Diagram Indoor unit Outdoor unitTemperature Charts Performance DataHigh pressure performance chart Indoor Unit CS-KE36NKU Outdoor Unit CU-KE36NKU Discharge 9535 8630 Indoor CS-KE30NKU Power Supply 230V Single Phase 60Hz Cooling CapacityCooling Capacity CU-KE30NKU34,000 BTU/h Cooling Capacity Low Ambient Outdoor30,900 30,870 30,800 30,710 30,590 30,400 30,210 Heating Capacity Power Supply 230V Single Phase 60Hz Heating CapacityTH Total Heating Capacity BTU/h 36,000 BTU/h Air Throw Distance Charts Cooling Voltage230V Cooling Electrical CharacteristicsElectrical Data Heating650 Electric Wiring Diagrams 8FA2-5251-12400-18FA2-5251-15200-0 ControllerEmergency operation FunctionsOperation Functions Auto cooling/heating operationTimer backup Lamp colorsNoise Reducing Control Outdoor Unit Switching Procedure to Noise Reducing ControlOperation Sound Description of function Maximum Current Value Change ProcedureMaximum Current Value Change Function CU-KE36NKUOverload prevention during heating Compressor discharge temperature controlProtective Functions Freeze preventionCT Peak current cut-off control Defrost detection and releaseReverse-Cycle Defrosting Precautions before Performing Inspection or Repair Troubleshooting Before Calling for ServiceMethod of Self-Diagnostics Self-diagnostics Lamps Diagnosis ContentsReplace the controller NormalReplace the circuit board or the fuse Checking the Indoor and Outdoor Units Using the TEST/T-RUN terminalsChecking the indoor unit Control Check items unit operation Off Blinking Illuminated Serial Communication Error Identification ProcedureAlarm Code E05 Before the OperationFrom the previous page a Alarm Code E07/P04/P05/P20/P27 Trouble Diagnosis of Fan Motor Indoor Fan MotorPin 1 Vcc brown Outdoor Fan MotorPin 3 Gnd blue Pin 2 PG whiteElectromagnetic interference Noise Malfunction and Electromagnetic InterferenceNoise malfunction Locations most susceptible to noise Trouble CorrectionMeasurement of Insulation Resistance Power Supply CordChecking Electrical Components Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy What is New Refrigerant R410A? Refrigerant R410A Special Precautions When Servicing UnitCharacteristics of New Refrigerant R410A CharacteristicsChecklist before Servicing Tubing Installation Procedures Tools Specifically for R410AProcedure for Replacing Compressor Case of Compressor MalfunctionExample Configuration and characteristics of cylindersAmount in the charging cylinder is less than 20% To prevent the compositionWelding leaking points Case Refrigerant is LeakingRecharging Retro-Fitting Existing Systems When Tubes are ExtendedCharging Additional Refrigerant Use of Existing UnitsAppendix a Operating Instructions CS-KE30NKU CS-KE36NKUSafety Precautions FeaturesContents Product InformationElectrical Requirements Installation LocationSafety Instructions AvoidNames of Parts Unit Display and Operation ButtonRemote Controller Display SymbolsRemote Controller Mode selector button HR. Timer button 1-HOUR OFF TimerTemperature setting buttons Temp High Power button32 x 13/16 Using the Remote ControllerACL button 20 mmOperation with the Remote Controller Automatic OperationAutomatic fan speed Cooling and DRY ModeHeating Mode Manual fan speedHigh Power Mode Unoccupied Indication StatusSpecial Remarks Setting the Timer Operation IndicationTips for Energy Saving Using the 1-HOUR OFF Timer1030 pm 710 am 1100 am Present time Adjusting the Airflow Direction When the air conditioner is not runningRemoving and remounting the front panel How to replace the filterCleaning the main unit and Remote Controller Washing the front panel with waterOperating Range Wired Remote ControllerTrouble Possible Cause Remedy Specifications Model No Outdoor Unit Indoor UnitPage 852-6-4190-587-00-0 Installation Instructions Split System Air Conditioner ContentsPlease Read Before Starting Fins of the outdoor unit. You may get injured AccidentallyGeneral Tools Required for Installation not suppliedAccessories Supplied with Unit Table Optional Copper Tubing KitInstallation Site Selection Additional Materials Required for InstallationSolid base must not cover the hole of the bottom plate  Countermeasures against snow and wind Precautions for Installation in a Snowy Area $/,8,3?,4508-25=  $/,04.3?-8,,D,4+89 Unit inch 4922054=0/041,9-*04.52,9 Required space around the outdoor unit$/,-8544+5/90+,9398,30456,4 27-5/8 11-5/8 Air Intake 25/32 13/32 13-3/8 14-31/32 4522,8/4/,/,0./5-/,5+55840  #04.2,4004922054  9*2,9545/90+,9 #04.2,4004922054 Installation in front-rear rowsObstacles to the front and rear of unit  9*2,9545/90+,9Remove the Rear Panel from the Unit How to Install the Indoor UnitTrical wiring or conduits are Make a HoleIf Block, Brick, Concrete or Similar Type Wall Install the Rear Panel on the WallIf Wooden Wall Hole DiaHow to remove the grille Removing and Installing the GrilleHow to replace the grille Wiring Instructions General precautions on wiring Shape the Indoor Side TubingWire Size and Length Wiring Instructions for Inter-unit Connections For Outdoor Unit  For solid core wiring or F-cable How to connect wiring to the terminal For Indoor Unit For stranded wiring Mounting  Right-side tubing Left-side tubing Switching drain hose and drain capDrain cap To unmount indoor unit Do not supply power toTubing and wiring to the out Frame Fastening MethodRouting the Tubing and Wiring How to Install the Outdoor UnitWiring Instructions for the Outdoor Unit Cover BRefrigerant Tubing Flaring Procedure with a Flare ToolTo 0.5 mm Adjust so that the amount of tube Use of the Flaring MethodInsulation of Refrigerant Tubing Connecting Tubing between Indoor and Outdoor UnitsFinishing the Installation Taping the TubesAir Purging Hex wrench before Be sure to completely insertAttempting to turn the valve How 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 ControllerDC1111-0

CS-KE30NKU, CS-KE36NKU, CU-KE30NKU, CU-KE36NKU specifications

The Panasonic CU-KE36NKU, CS-KE36NKU, CU-KE30NKU, and CS-KE30NKU air conditioning units represent the brand's commitment to delivering high-performance cooling solutions backed by innovative technologies. These units cater to both residential and commercial applications, ensuring users experience maximum comfort throughout the year.

One of the standout features of these models is their energy efficiency. Both units are equipped with advanced inverter technology, which allows for variable speed operation. This means they can adjust their power output according to the room's cooling needs, reducing energy consumption and minimizing electric bills while maintaining a consistent temperature. The models boast impressive SEER (Seasonal Energy Efficiency Ratio) ratings, making them environmentally friendly options.

Panasonic's nanoe-G technology is another remarkable feature incorporated into these models. This technology helps to purify the air by generating hydroxyl radicals, which eliminate airborne particles, odors, and harmful bacteria. This results in a healthier indoor environment, conducive to both comfort and well-being. The air purification aspect not only enhances the air quality but also extends the lifespan of the HVAC system by reducing the buildup of dust and contaminants.

In terms of user convenience, both the CU-KE and CS-KE series are equipped with programmable timers, allowing users to set their desired operation schedules. They also come with a remote control for ease of use, enabling adjustments from a distance. The installation process is straightforward, and the sleek design blends seamlessly with various interior aesthetics, making them a suitable choice for any room.

Durability is a key characteristic of Panasonic air conditioning units, and the CU-KE36NKU, CS-KE36NKU, CU-KE30NKU, and CS-KE30NKU are designed to withstand varying environmental conditions. Their robust construction ensures reliability and performance over the years. Additionally, both models come with a quiet operation feature that minimizes noise levels, allowing for comfortable use without disturbing daily activities.

In summary, the Panasonic CU-KE36NKU, CS-KE36NKU, CU-KE30NKU, and CS-KE30NKU are exceptional air conditioning units that combine energy efficiency, innovative purification technology, user-friendly features, and robust durability. These models are an ideal investment for anyone seeking a reliable and high-performance cooling solution.