Panasonic CS-KE30NKU Service Manual

AIR CONDITIONERIMPORTANTThese air conditioners employ newrefrigerant R410A.Pay special attention whenservicing the unit.TECHNICAL & SERVICE MANUAL

Indoor Unit CS-KE36NKUOutdoor Unit CU-KE36NKU< 208V >DATA SUBJECT TO CHANGE WITHOUT NOTICE.VerticaldB-AdB-AIndoor : Hi/Me/Lo/Qt*Outdoor : HiAir

203-9. Mounting(1) To install the indoor unit, mount the indoor unit ontothe 3 tabs on the upper part of the rear plate. (2) Hold down the air discha

21Hole in wallBent partNarrow tubeWide tubeRear panelFig. 38Drain capDrain hoseClampFig. 39 Left-side tubing(1) Lead the tubing and drain hose throug

22To unmount indoor unitPress the 2 marks on the lower part of the indoor unitand unlatch the tabs. Then lift the indoor unit andunmount. (Fig. 42)3-

234. How to Install the Outdoor UnitFirst refer to Section 2. Installation Site Selection.4-1. Wiring Instructions for the Outdoor UnitRegulations o

245. Refrigerant Tubing5-1. Use of the Flaring MethodMany of the conventional split system air conditionersemploy the flaring method to connect refr

255-4. Connecting Tubing between Indoor and Outdoor Unitsa) Tightly connect the indoor side refrigerant tubing exten-ded from the wall with the outdoo

266. Air PurgingAir and moisture remaining in the refrigerant systemhave undesirable effects as indicated below. Therefore,they must be purged comple

27(5) With the vacuum pump still running, close the “Lo”knob of the manifold valve. Then stop the vacuumpump.(6) With the hex wrench, turn the valve s

28How to Test Run the Air ConditionerAfter turning on the power of the air conditioner, use theremote controller and follow the steps below to conduct

29 Pump DownPump down means collecting all refrigerant gas in thesystem back into the outdoor unit without losing any ofthe gas. Pump down is used wh

Indoor Unit CS-KE30NKU24BYJ48-1256Flap MotorType Stepping MotorRating ModelCoil Resistance Ohm(Ambient Temp. 77 °F (25 °C))Each Pair of Terminal : 200

30( $,3658(8?*544,*:054#*8,=04@:;849)?/(4+0.*) $5-(9:,4:/,-2(8,4;:9(662?96,*0-0,+:587;,(9$()2,(4+0.+Fig. 60c

318. Address Switch8-1. Address Setting of the Remote ControllerThe address can be set in order to prevent interferencebetween remote controllers wh

DC1111-0

Indoor Unit CS-KE36NKUFlap MotorTypeRating ModelCoil Resistance Ohm(Ambient Temp. 77 °F (25 °C)) Face Area CoilRowsFins Per inchHeat Exchanger Coilft2

Outdoor Unit CU-KE30NKU2-2-2. Outdoor UnitP.C.BoardCircuit Fuse ControlsPart No.-250V 25APOW-CH3082-B2Noise Filer P.C.BMicroprocessor400V 3.15ACR-CH3

Outdoor Unit CU-KE36NKUP.C.BoardCircuit Fuse ControlsPart No.-250V 25APOW-CH3082-B2Noise Filer P.C.BMicroprocessor400V 3.15ACR-CH3682-FControl P.C.B--

2-3. Other Component Specifications Indoor Unit CS-KE30NKU CS-KE36NKUOutdoor Unit CU-KE30NKU CU-KE36NKU032 50 68 86 104 122 140 158 176 194(0) (10)

3. DIMENSIONAL DATAIndoor Unit CS-KE30NKU CS-KE36NKUUnit: inch(mm)(852-0-0010-196-00-0)41-15/16 (1065)9-1/16 (230) (3/32)7-25/32Wide tube dia. 5/8&

Outdoor Unit CU-KE30NKU CU-KE36NKUUnit: inch(mm)(852-0-0010-194-00-1)6-11/6 25-31/324-11/322-15/162-3/82-ID:1-1/4 holes (holes for drain)Of the 4-ID

Compressor4-wayvalveMainAccumulatorHigh pressureswitchWide tubeservicevalveWide tubeSubAccumulatorNarrowtubeservicevalveNarrow tubeHeat exchangerHeat

5. PERFORMANCE DATA5-1. Temperature ChartsIndoor Unit CS-KE30NKUOutdoor Unit CU-KE30NKU• Check each performance value in test-run mode. Electrical

• Before doing repair work, please read the " SAFETY PRECAUTIONS" carefully and fully understand them. • The precautionary items here

Indoor Unit CS-KE30NKUOutdoor Unit CU-KE30NKU• Check each performance value in test-run mode. Electrical performance values represent a combined i

Indoor Unit CS-KE36NKUOutdoor Unit CU-KE36NKUCooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V)(1) Low pressure performa

Indoor Unit CS-KE36NKUOutdoor Unit CU-KE36NKUIndoor discharge air temperature °F(°C)23(Ð5)32(0)41(5)50(10)59(15)68(20)77(25)Outdoor inlet air DB t

1.Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB: Outdoor Ambient Temp. 95 °F (35 °C) DB2.3. Above d

Indoor Unit : CS-KE36NKUOutdoor Unit : CU-KE36NKUPower Supply : 230V Single Phase 60Hz< Cooling Capacity >TC : Total Cooling Capacity (BTU/

Indoor Unit : CS-KE30NKUOutdoor Unit : CU-KE30NKUPower Supply : 230V Single Phase 60Hz< Cooling Capacity (Low Ambient) >5-3. Cooling Capac

Indoor Unit : CS-KE36NKUOutdoor Unit : CU-KE36NKUPower Supply : 230V Single Phase 60Hz< Cooling Capacity (Low Ambient) >TC : Total Cooling

Indoor Unit : CS-KE30NKUOutdoor Unit : CU-KE30NKUPower Supply : 230V Single Phase 60Hz< Heating Capacity >5-4. Heating CapacityTH : Total

Indoor Unit : CS-KE36NKUOutdoor Unit : CU-KE36NKUPower Supply : 230V Single Phase 60Hz< Heating Capacity >TH : Total Heating Capacity (BTU/

Horizontal distance (ft.)Axis air velocity (ft./sec.)Vertical distance (ft.)Room air temp.:70°F (21.1°C)Fan speed:HighHeatingHorizontal distance (ft.)

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

Horizontal distance (ft.)Axis air velocity (ft./sec.)Vertical distance (ft.)Room air temp.:70°F (21.1°C)Fan speed:HighHeatingHorizontal distance (ft.)

6. ELECTRICAL DATA6-1. Electrical CharacteristicsIndoor Unit CS-KE30NKUOutdoor Unit CU-KE30NKUIndoor UnitOutdoor UnitFan Motor Fan Mot

Indoor Unit CS-KE36NKUOutdoor Unit CU-KE36NKUIndoor UnitOutdoor UnitFan Motor Fan Motor + CompressorPerformance at 230V Single-phase 6

CONTROLLERIND LAMP ASSY12451243351239123454567678 891239123454567678 89LAMP9P (WHT)1212COIL2P (WHT)ROOM/UV4P (WHT)S-LINK (RAC)4P (BLU)FLAP5P (WHT)GND2

Outdoor Unit CU-KE30NKU CU-KE36NKU8FA2-5251-15200-025ACONTROLLERDCFM MV0FAN MOTOR12 3 4 5 6 7BLUREDBRNWHTORGBLUREDBRNWHTORGwwwwwww1 2 3 4 551 2 431 2

Emergency operation SENSOR DRYAUTO cooling/heating operation Selecting the operation mode During DRY operation, the system adjusts the room temperat

HIGH POWERNIGHT SETBACKLamp colorsTimer backupThis function acts to raise the power but keeps the AC system in the same operating mode.This function i

The noise reducing control is the function used for silent operation of the air conditioner by means of setting the dip switch on the outdoor unit P.C

The maximum current value is changed to 14A (for CU-KE30NKU) or 17A (for CU-KE36NKU) to prevent powerbreaker tripping. (It is set to 24A (in cooling)

Overload prevention during heatingDuring HEAT operation, the temperature of the indoor heat exchanger is used to control the frequency and lessen the

Table of Contents SAFETY PRECAUTIONSTABLE OF CONTENTS1. OPERATING RANGE2. SPECIFICATIONS2-1. Unit Specifications 2-2. Major Component Specific

This function prevents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due t

8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)8-1. Precautions before Performing Inspection or RepairNOTEAfter checking the self-diagnostics monito

INDICATION ON INDOOR UNIT... OFFDIAGNOSIS CONTENTS POSSIBLE MALFUNCTIONROOM TEMP. SENSOR TROUBLEI/D HEAT EXCHANGER TEMP. SENSOR TROUBLEHUMIDITY SEN

(2) If the self-diagnostics function fails to operateCheck the indoor unit.Is the fuse blown?Replace the controller.Replace the circuitboard or the fu

8-3. Checking the Indoor and Outdoor Units(1) Checking the indoor unit(2) Checking the outdoor unit Using the TEST/T-RUN terminalsControlNo. Check ite

(3) Serial Communication Error Identification ProcedureRefer to "Method of Self-Diagnostics" for the self-diagnostics procedure.(3-1) Alarm

What is the latest self-diagnosis result ?Alarm Code : E07/P04/P05/P20/P27Alarm Code : E07/P04/P05/P20/P27Defect in the outdoor unitP.C. board.Alarm C

(3-2) Alarm Code : E07/P04/P05/P20/P27Troubleshooting Serial Communication1. Turn off the power and wait until the power lamp (LED) of the outdoor un

[Trouble symptom 3] Motor rotates for some time (several seconds), but then quickly stops, when the indoor unit operates.(There is trouble in the sys

8-4-2. Outdoor Fan MotorThis outdoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil resistance, and

9. CHECKING ELECTRICAL COMPONENTS9-1. Measurement of Insulation Resistance9-2. Checking Continuity of Fuse on PCB Ass'y10. REFRIGERANT R410A:

8-5. Noise Malfunction and Electromagnetic InterferenceAn inverter A/C operates using pulse signal control and high frequencies. Therefore, it is sus

Insulation testerProbeClipGround wireTerminal plateCoppertube ormetallic partClipInsulation testerProbeFig. 1Fig. 2Fig. 3Fig. 4Coppertube ormetallic p

FusePCB Ass'yFig. 5Fig. 6Fuse9-2. Checking Continuity of Fuse on PCB Ass'yRemove the PCB Ass'y from the electrical component box. Then

10. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT10-1. Characteristics of New Refrigerant R410A10-1-1. What is New Refrigerant R410A?R

Tubing precautionsRefrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the t

10-3. Tools Specifically for R410A For servicing, use the following tools for R410AGauge manifoldCharging hoseGas leak detectorRefrigerant cylinderCh

10-5. In Case of Compressor Malfunction CAUTIONShould the compressor malfunction, be sure to make the switch to a replacement compressor as quickly a

ValveSingle valveCharge liquid refrigerant with cylinder in up-side-down position.Single valve (with siphon tube)Charge with cylinder in normal positi

Length of tubingEvacuation timeLess than 33 ft. (10 m)More than 10 minutesMore than 33 ft. (10 m)More than 15 minutes10-6. In Case Refrigerant is Le

10-7. Charging Additional Refrigerant10-7-1. When Tubes are ExtendedObserve the proper amount of refrigerant as stated in this service manual or the

95 °F DB / 71 °F WB67 °F DB / 57 °F WB80 °F DB / 67 °F WB– DB / – WB1. OPERATING RANGEMaximumMinimumMaximumMinimum115 °F DB0 °F DB75 °F DB / 65 °F WB

Operating InstructionsCS-KE30NKU + CU-KE30NKUCS-KE36NKU + CU-KE36NKU(852-6-4181-221-00-2)APPENDIX AA-1

Split System Air ConditionerModel No.Indoor UnitsCS-KE30NKUCS-KE36NKUOutdoor UnitsCU-KE30NKUCU-KE36NKUOperating InstructionsPanasonic Corporation1006

2FEATURESThis air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided b

3INSTALLATION LOCATION• We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Inst

4NAMES OF PARTSThis illustration is based on the external view of a standard model.Consequently, the shape may differ from that of the air conditioner

5REMOTE CONTROLLER (DISPLAY)(1) Operation modeAUTO ...HEAT ...MILD DRY ...

6REMOTE CONTROLLERTransmitterWhen you press the buttons on the remote controller, the mark appears in the display to transmit the setting changes to

7SensorA temperature sensor inside the remote controller senses the room temperature.(Cover closed)CLOCK buttonACL button (ALL CLEAR)Puts the remote c

8USING THE REMOTE CONTROLLERHOW TO INSTALL BATTERIES1. Slide the cover in the direction indicated by the arrow and remove it.2. Install two AAA alkali

9OPERATION WITH THE REMOTE CONTROLLER1. Automatic OperationThis unit automatically switches between cooling operation and heating operation according

2. SPECIFICATIONS2-1. Unit SpecificationsIndoor Unit CS-KE30NKUOutdoor Unit CU-KE30NKU< 230V >DATA SUBJECT TO CHANGE WITHOUT NOTICE.Remarks: R

103. Adjusting the Fan SpeedA. Automatic fan speedSimply set the FAN SPEED selector button to the position.This automatically sets the best fan spe

117. HIGH POWER ModeHIGH POWER mode can be used to increase the output of the indoor unit for all operation modes except automatic operation.Press th

12A. In Heating Mode: ( )B. In Cooling Mode: ( )• Unoccupied Mode triggers Heating or Cooling Operation in response to the room temperature, but when

13SETTING THE TIMERIn the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom fro

144. How to set daily ON/OFF repeat timer(Example) To start operation at 7:10 am. and stop the air conditioner at 11:00 am.• The ON/OFF combination ti

15ADJUSTING THE AIRFLOW DIRECTION1. HorizontalThe horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right

16CARE AND CLEANINGCasing and Grille (Indoor Unit)Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or wipe them with a clea

17TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)If your air conditioner does not work properly, first check the following points before requesting serv

18SPECIFICATIONSModel No.Outdoor Unit Indoor UnitCS-KE30NKUCU-KE30NKU30,600 [ 10,900 ~ 30,600 ]55Single-phase, 208-230 V, 60 Hz9.00 [ 3.20 ~ 9.00 ]9.

Indoor Unit CS-KE30NKUOutdoor Unit CU-KE30NKU< 208V >DATA SUBJECT TO CHANGE WITHOUT NOTICE.VerticaldB-AdB-AIndoor : Hi/Me/Lo/Qt*Outdoor : HiAir

INSTALLATION INSTRUCTIONSAPPENDIX BCS-KE30NKU + CU-KE30NKUCS-KE36NKU + CU-KE36NKU(852-6-4190-587-00-0)A-2

$/09(08*54+0:054,8;9,9:/,8,-80.,8(4:">:,84(2+0(3,:,85-9,8<0*,658:"Split System Air Conditioner

2IMPORTANT! Please Read Before StartingThis air conditioning system meets strict safety and operatingstandards. As the installer or service person, it

 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJ $SSO\UHIULJHUDQWOXEULFDQWWRWKHPDWFKLQJVXUIDFHVRIthe flare and union tubes before connecting them

41. GeneralThis booklet briefly outlines where and how to install theair conditioning system. Please read over the entire setof instructions for the

51-5. Additional Materials Required for Installation1. Refrigeration (armored) tape2. Insulated staples or clamps for connecting wire(See local codes

6 Concerning air-intake side distance “A” (Fig. 5a)The minimum for distance “A” is 6" if there are noobstructions on the air-discharge side (wal

7Fig. 5eFig. 5fFig. 5g2-2-1. Installing the Unit in an Area with High Winds and in a Snowy Area 425*(:0549=0://0./=04+9(=04+6855-+;*:9/5

811-13/16" 13-3/8"25-3/16"22-7/8"(6-21/32")6-5/16"21-25/32" (12-9/16")2-11/16"35-13/16"37-1/32"

9Required space around the outdoor unit-:/,=04+6855-+;*:09;9,+:/,96(*,9/5=4),25=3;9:),9,*;8,+(85;4+:/,5;:+558;40:-:/,;40:09;9

Indoor Unit CS-KE36NKUOutdoor Unit CU-KE36NKU< 230V >DATA SUBJECT TO CHANGE WITHOUT NOTICE.VerticaldB-AdB-AIndoor : Hi/Me/Lo/Qt*Outdoor : HiAir

1025-13/32"3/32"13-3/8"(11-15/16")16-15/16"Air IntakeAirdischarge39-1/4"27-7/32"7-1/32"35-15/16"28-15/16&

11Reference diagram for snow-proof duct Space requirements for setting CU-KE30NKU, CU-KE36NKU with STK-BDV80E0458358,#04.2,;40:049:

120458358,0458358,0458358,0458358,0458358,0458358,#04.2,;40:049:(22(:0

13Rear panelFig. 7cRear panelFig. 7bSet screw only for transportationFig. 6Rear panelmarksFig. 7a,-::;)04."0./::;)04."0./:8,(8:;)04.8,*53

14IndoorsideOutdoorsideHole should be made at a slight downward slant to theoutdoor side.NOTEFig. 10Plastic coverINSIDE OUTSIDEWallSlightanglePVC pipe

153-4. Removing and Installing the GrilleBasically, these models can be installed and wired with-out removing the grille. If access to any internal p

163-5. Shape the Indoor Side Tubing(1) Arrangement of tubing by directiona) Right or left tubingCut out the corner of the right/left frame with ahack

173-7. Wire Size and LengthRegulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your local

183-8. Wiring Instructions for Inter-unit Connections(1) Insert the inter-unit wiring (according to local codes)into the through-the-wall PVC pipe. R

19When connecting each power wire to the correspondingterminal, follow the instructions “How to connect wiringto the terminal” and fasten the wire sec