Panasonic CU-KE36NKU, CU-KE30NKU, CS-KE36NKU, CS-KE30NKU service manual Special Remarks

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A.In Heating Mode: ( )

(1)When the room temperature drops below 46°F, Heating Operation will begin.

(2)When the room temperature rises to above 53°F, Heating Operation will stop.

The above actions will repeat so that the room temperature is maintained at about 50°F.

Room

 

 

Temperature (°F)

 

 

53

 

(2)

50

 

 

 

46

(1)

 

 

 

 

Heating

Time

 

Heating

 

starts

stops

B. In Cooling Mode: ( )

(1)When the room temperature rises above 89°F, Cooling Operation will begin.

(2)When the room temperature drops below 82°F, Cooling Operation will stop.

The above actions will repeat so that the room temperature is maintained at about 86°F.

Room

 

 

 

Temperature (°F)

 

(1)

 

 

89

 

 

 

 

 

86

 

 

 

82

 

(2)

 

 

 

 

 

Cooling

Time

 

 

Cooling

 

 

starts

stops

Unoccupied Mode triggers Heating or Cooling Operation in response to the room temperature, but when this happens, the remote controller will continue to display the Operation mode set by the user.

If the room temperature rapidly changes, the room temperature may get over the upper or lower limit when the unoccupied function is activated.

NOTE

The remote controller should be used in the location specified in “REMOTE CONTROLLER INSTALLATION POSITION” on page 8.

The air conditioner’s stop order (stated in (2) / above) is valid only when the unoccupied function is operated.

SPECIAL REMARKS

‘‘DRY’’ ( ) Operation

How it works?

Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically.

During DRY operation, the fan speed automatically runs at lower speed for providing a comfortable breeze.

‘‘DRY’’ operation is not possible if the indoor temperature is 59 °F or less.

Heating ( ) Operation

Heating performance

When High power operation , Fan speed Automatic operation

, HIGH or MEDIUM has been changed to Fan speed

LOW , Quiet operation or Night Setback , the fan speed may not be reduced to the desired setting immediately but rather it may be reduced slowly in steps due to the operating status of the air conditioner. (A maximum of 5 minutes are required for the change to be completed.)

Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system), the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance together with it.

Defrosting

When the outdoor temperature is low, frost or ice may form on the heat exchanger coil, reducing heating performance. When this happens, a microcomputer defrosting system operates. At the same time, the fan on the indoor unit stops and the OPERATION lamp lights red and orange alternately until defrosting is completed. Heating operation restarts after several minutes. (This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms.)

Cold draft prevention

For several minutes after the start of heating operation, the indoor fan runs at a lower speed until the indoor heat exchanger coil has warmed up sufficiently. However, the fan may remain stopped when the room temperature is low. This is because the COLD DRAFT PREVENTION SYSTEM is in operation.

Cooling () operation

Sometimes the indoor unit may not get to the set fan speed such as LOW under cool operation at very low outdoor temperatures due to the indoor unit being protected from ice or frost.

Power failure during operation

In the event of power failure, the unit will stop. When the power is resumed, the unit will restart automatically in approximately

5 minutes by the remote controller.

If the remote controller is on and left in a location where the unit can receive a signal, then the unit will automatically restart in approximately 5 minutes of power being restored.

Clicking Sound

Clicking sound is heard from the air conditioner

In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change. In this event, a clicking sound may occur. This is normal, and the sound will soon disappear.

Remote Controller

The remote controller sends the setting condition to the air conditioner regularly at five minute intervals.

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Contents CS-KE30NKU + CU-KE30NKU CS-KE36NKU + CU-KE36NKU Indoor Model No Product Code NoOutdoor 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 RangeSpecifications Unit SpecificationsIndoor Unit Outdoor Unit208V CS-KE36NKU 21.9 19.9 Major Component Specifications Indoor UnitIndoor Unit CS-KE30NKU Indoor Unit CS-KE36NKU CB-CS-KE36NKUOutdoor Unit Outdoor Unit CU-KE30NKUBoard CompressorOutdoor Unit CU-KE36NKU Other Component Specifications Dimensional Data Inchmm 194-00-1 Unit Refrigerant Flow Diagram Refrigerant Flow DiagramIndoor Unit CS-KE30NKU Outdoor Unit CU-KE30NKU Indoor unit Outdoor unitTemperature Charts Performance DataHigh pressure performance chart Indoor Unit CS-KE36NKU Outdoor Unit CU-KE36NKU Discharge 9535 8630 Indoor Power Supply 230V Single Phase 60Hz Cooling Capacity Cooling CapacityCS-KE30NKU CU-KE30NKU34,000 BTU/h Cooling Capacity Low Ambient Outdoor30,900 30,870 30,800 30,710 30,590 30,400 30,210 Power Supply 230V Single Phase 60Hz Heating Capacity Heating CapacityTH Total Heating Capacity BTU/h 36,000 BTU/h Air Throw Distance Charts Cooling Electrical Characteristics Electrical DataVoltage230V Cooling Heating650 Electric Wiring Diagrams 8FA2-5251-12400-18FA2-5251-15200-0 ControllerFunctions Operation FunctionsEmergency operation Auto cooling/heating operationTimer backup Lamp colorsSwitching Procedure to Noise Reducing Control Noise Reducing Control Outdoor UnitOperation Sound Maximum Current Value Change Procedure Maximum Current Value Change FunctionDescription of function CU-KE36NKUCompressor 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 Diagnosis ContentsNormal Replace the controllerReplace the circuit board or the fuse Using the TEST/T-RUN terminals Checking the Indoor and Outdoor UnitsChecking the indoor unit Control Check items unit operation Serial Communication Error Identification Procedure Alarm Code E05Off Blinking Illuminated Before the OperationFrom the previous page a Alarm Code E07/P04/P05/P20/P27 Trouble Diagnosis of Fan Motor Indoor Fan MotorOutdoor Fan Motor Pin 3 Gnd bluePin 1 Vcc brown Pin 2 PG whiteNoise 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 UnitsAppendix a Operating Instructions CS-KE30NKU CS-KE36NKUFeatures 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 High Power buttonUsing the Remote Controller ACL button32 x 13/16 20 mmOperation with the Remote Controller Automatic OperationCooling and DRY Mode Heating ModeAutomatic fan speed Manual fan speedHigh Power Mode Unoccupied Indication StatusSpecial Remarks Setting the Timer Operation IndicationUsing the 1-HOUR OFF Timer Tips for Energy Saving1030 pm 710 am 1100 am Present time Adjusting the Airflow Direction When the air conditioner is not runningHow to replace the filter Cleaning the main unit and Remote ControllerRemoving and remounting the front panel Washing the front panel with waterWired Remote Controller Operating RangeTrouble 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 AccidentallyTools 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 the hole of the bottom plate Precautions for Installation in a Snowy Area  Countermeasures against snow and wind $/,8,3?,4508-25=  $/,04.3?-8,,D,4+89 Unit inch Required space around the outdoor unit 4922054=0/041,9-*04.52,9$/,-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+,9Installation in front-rear rows Obstacles to the front and rear of unit #04.2,4004922054  9*2,9545/90+,9How to Install the Indoor Unit Trical wiring or conduits areRemove the Rear Panel from the Unit Make a HoleInstall the Rear Panel on the Wall If Wooden WallIf Block, Brick, Concrete or Similar Type Wall Hole DiaRemoving and Installing the Grille How to remove 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 How to connect wiring to the terminal For Indoor Unit For Outdoor Unit  For solid core wiring or F-cable For stranded wiring Mounting  Right-side tubingSwitching drain hose and drain cap  Left-side tubingDrain cap Do not supply power to Tubing and wiring to the outTo unmount indoor unit Frame Fastening MethodHow to Install the Outdoor Unit Wiring Instructions for the Outdoor UnitRouting the Tubing and Wiring Cover BFlaring 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 Finishing the InstallationInsulation of Refrigerant Tubing Taping the TubesAir Purging Be sure to completely insert Hex wrench beforeAttempting 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.