Panasonic CS-KE30NKU Technical & Service Manual Download Page 18

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Compressor

4-way
valve

Main
Accumulator

High pressure

switch

Wide tube
service
valve

Wide tube

Sub
Accumulator

Narrow
tube
service
valve

Narrow tube

Heat e

xchanger

Heat e

xchanger

Muffler

Cooling cycle
(Defrosting cycle)

Heating cycle

Indoor unit

Outdoor unit

Electric

expansion

valve

Strainer

O.D
5/8"

(15.88 mm)

O.D.

3/8"

(9.52 mm)

H.P.

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Indoor Unit

CS-KE30NKU

CS-KE36NKU

Outdoor Unit

CU-KE30NKU

CU-KE36NKU

Summary of Contents for CS-KE30NKU

Page 1: ...MANUAL CS KE30NKU CU KE30NKU CS KE36NKU CU KE36NKU DC INVERTER SPLIT SYSTEM AIR CONDITIONER Outdoor Model No CU KE30NKU CU KE36NKU Product Code No 1 852 360 82 1 852 360 83 Indoor Unit Outdoor Unit CS KE30NKU CS KE36NKU CU KE30NKU CU KE36NKU Indoor Model No CS KE30NKU CS KE36NKU Product Code No 1 852 360 88 1 852 360 89 REFERENCE NO SM700876 ...

Page 2: ...ection perform the repair work after sufficiently discharging it Insufficient capacitor discharge may cause an electric shock Do not perform repair work on the electric sections with wet hands Doing so may cause an electric shock Do not start or stop the air conditioner by means of connecting or disconnecting the power plug Doing so may cause an electric shock or fire When conducting repair work o...

Page 3: ...on Caution Do not wash the air conditioner with water as this may cause an electric shock or fire 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...

Page 4: ...acity Low Ambient 5 4 Heating Capacity 5 5 Air Throw Distance Charts 6 ELECTRICAL DATA 6 1 Electrical Characteristics 6 2 Electric Wiring Diagrams 7 FUNCTIONS 7 1 Operation Functions 7 2 Protective Functions 8 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 8 1 Precautions before Performing Inspection or Repair 8 2 Method of Self Diagnostics 8 3 Checking the Indoor and Outdoor Units 8 4 Trouble Diagnos...

Page 5: ...istics of New Refrigerant R410A 10 2 Checklist before Servicing 10 3 Tools Specifically for R410A 10 4 Tubing Installation Procedures 10 5 In Case of Compressor Malfunction 10 6 In Case Refrigerant is Leaking 10 7 Charging Additional Refrigerant 10 8 Retro Fitting Existing Systems APPENDIX A Operating Instructions APPENDIX B INSTALLAION INSTRUCTIONS 51 52 53 54 55 55 56 58 59 59 A 1 A 2 Page 5 ...

Page 6: ... F WB 67 F DB 57 F WB 80 F DB 67 F WB DB WB 1 OPERATING RANGE Maximum Minimum Maximum Minimum 115 F DB 0 F DB 75 F DB 65 F WB DB 0 F WB Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Heating 6 ...

Page 7: ...Voltage Range Running Amperes Refrigerant Tube Kit Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 32 0 39 7 4 59 14 5 18 0 0 13 185 2 207 2 15 88 84 0 94 0 0 45 42 3 8 s 40 s 16 3 8 1 076 s 1 016 s 416 300 s 1 065 s 230 910 s 940 s 340 12 7 32 s 44 7 8 s 14 31 32 310 s 1 140 s 380 Outdoor Unit Indoor Unit 11 13 16 s 41 15 16 s 9 1 16 35 13 16 s 37 1 32 s 13 3 8 3 8 9 52 5 8 15 88 ...

Page 8: ...Wh Air Circulation Hi Me Lo ft3 min m3 h Moisture Removal High Pints h COP W W EER BTU h W Fuse or Circuit Breaker Capacity A 14 000 to 33 000 4 1 to 9 7 18 0 3 290 5 0 to 18 0 1 000 to 3 290 16 8 3 070 4 5 to 16 8 900 to 3 070 30 600 9 0 33 000 9 7 10 900 to 30 600 3 2 to 9 0 Cooling Heating 18 600 12 000 187 to 253 32 0 39 7 4 59 14 5 18 0 0 13 185 2 207 2 15 88 84 0 94 0 0 45 300 s 1 065 s 230 ...

Page 9: ... Air Circulation Hi Me Lo ft3 min m3 h Moisture Removal High Pints h COP W W EER BTU h W Fuse or Circuit Breaker Capacity A 14 000 to 36 000 4 1 to 10 5 20 0 4 000 5 0 to 20 0 1 000 to 4 000 18 2 3 650 4 5 to 18 2 900 to 3 650 34 000 10 0 36 000 10 5 10 900 to 34 000 3 2 to 10 0 Cooling Heating 20 700 13 300 187 to 253 32 0 39 7 4 59 14 5 18 0 0 13 185 2 207 2 15 88 84 0 94 0 0 45 300 s 1 065 s 23...

Page 10: ...U h SEER BTU Wh Air Circulation Hi Me Lo ft3 min m3 h Moisture Removal High Pints h COP W W EER BTU h W Fuse or Circuit Breaker Capacity A 14 000 to 36 000 4 1 to 10 5 21 9 4 000 5 0 to 21 9 1 000 to 4 000 19 9 3 650 4 5 to 19 9 900 to 3 650 34 000 10 0 36 000 10 5 10 900 to 34 000 3 2 to 10 0 20 700 13 300 187 to 253 32 0 39 7 4 59 14 5 18 0 0 13 185 2 207 2 15 88 84 0 94 0 0 45 300 s 1 065 s 230...

Page 11: ...ICE Yes Control PCB Control Circuit Fuse Controls Part No Microprocessor 250V 3A CB CS KE30NKU 1 D3 15 16 L32 1 D100 L838 Cross Flow DC Motor SIC 41CVJ D847 1 1 8 47 1 370 1 450 Internal Controller Yes Fan Q ty Dia and Length Type inch mm Fan Motor Nominal Output Coil Resistance Rough Measure RPM Cool Heat Type Model Q ty No of Poles Safety Device Type Over Current Protection Over Heat Protection ...

Page 12: ...an Q ty Dia and Length Type inch mm Fan Motor Nominal Output Coil Resistance Rough Measure RPM Cool Heat Type Model Q ty No of Poles Safety Device Type Ambient Temp 68 F 20 C Run Capacitor Micro F VAC W Ohm Over Current Protection Over Heat Protection 24BYJ48 1256 Stepping Motor Each Pair of Terminal 200 7 DC 12V Aluminum Plate Fin Copper Tube 1 and 2 19 5 4 55 0 423 1 D3 15 16 L32 1 D100 L838 Cro...

Page 13: ...750 Ohm DC Motor Type Compressor Model Nominal Output Compressor Coil Resistance Ambient Temp 77 F 25 C Ohm DC Twin Rotary Hermetic C 9RVN273H0H 2 250W T R T S R S 0 169 0 169 0 169 CT Peak current cut off control Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Safety Device Micro F VAC Run Capacitor Crankcase Heater Yes Yes Yes Overload Relay CS 7L110 Model Op...

Page 14: ... Motor Type Compressor Model Nominal Output Compressor Coil Resistance Ambient Temp 77 F 25 C Ohm DC Twin Rotary Hermetic C 9RVN273H0H 2 500W T R T S R S 0 169 0 169 0 169 CT Peak current cut off control Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Safety Device Micro F VAC Run Capacitor Crankcase Heater Yes Yes Yes Overload Relay CS 7L110 Model Operation Te...

Page 15: ...10 15 20 25 30 35 40 Indoor air temp sensor Model KTEC 35 135 1 Indoor heat exchanger sensor Model PTM D51H S6 1 Compressor temp sensor Model TKS335B Resistance k ohm Resistance k ohm Temperature F C Outdoor air temp sensor Model TKS295B Outdoor heat exchanger sensor Model TKS334B Heat sink temp sensor HIC Board Model TKS316B 40 35 30 25 20 15 10 5 0 4 5 14 23 32 41 50 59 68 20 15 10 5 0 5 10 15 2...

Page 16: ... 15 88 Narrow tube dia 3 8 9 52 1 27 32 1 3 32 2 3 32 25 32 5 1 2 6 7 32 16 11 32 17 5 16 19 9 16 16 11 32 17 21 32 22 3 8 5 3 16 3 3 4 3 3 4 7 7 8 15 1 8 17 23 32 2 11 16 11 13 16 1 7 8 d i a 3 5 3 2 23 32 1 15 32 1 7 8 9 3 32 5 27 32 2 3 8 4 9 16 4 9 16 11 13 16 300 7 23 32 2 3 4 5 9 16 1 9 32 7 16 2 5 8 2 3 8 3 3 8 2 5 8 d i a 3 5 3 2 16 ...

Page 17: ...0 Refrigerant tubing joint Liquid tube Flare connection dia 3 8 9 52 Refrigerant tubing joint Gas tube Flare connection dia 5 8 15 88 2 3 8 3 4 1 15 16 1 27 32 1 3 16 4 11 32 13 9 32 14 11 32 Wiring outlet knock out holes dia 1 3 8 1 3 32 7 8 1 2 2 25 32 2 5 32 2 17 32 35 13 16 910 23 32 1 1 32 13 32 13 3 8 340 14 31 32 16 5 32 11 13 32 4 11 32 2 25 32 1 15 16 6 23 32 19 32 31 32 4 3 4 1 3 16 7 16...

Page 18: ...ce valve Narrow tube Heat exchanger Heat exchanger Muffler Cooling cycle Defrosting cycle Heating cycle Indoor unit Outdoor unit Electric expansion valve Strainer M O D 5 8 15 88 mm O D 3 8 9 52 mm H P 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Indoor Unit CS KE30NKU CS KE36NKU Outdoor Unit CU KE30NKU CU KE36NKU 18 ...

Page 19: ...r inlet air DB temp F C Operating current A Indoor discharge air temperature F C Low pressure at wide tube service valve psig MPaG 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 57 2 14 64 4 18 60 8 16 53 6 12 50 0 10 46 4 8 42 8 6 10 12 14 16 18 20 22 24 26 28 104 0 7 117 0 8 131 0 9 145 1 0 159 1...

Page 20: ...41 5 19 18 17 16 15 14 13 50 10 59 15 68 20 77 25 Operating current A 23 Ð5 32 0 41 5 50 10 131 55 122 50 113 45 104 40 95 35 86 30 59 15 68 20 77 25 Outdoor inlet air DB temp F C High pressure at wide tube service valve psig MPaG 494 3 4 421 2 9 348 2 4 275 1 9 Heating Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 High pressure performance chart 2 Operating current performance chart...

Page 21: ...10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value NOTE 57 2 14 60 8 16 64 4 18 53 6 12 50 0 10 46 4 8 42 8 6 10 12 14 16 18 20 22 24 26 28 104 0 7 117 0 8 131 0 9 145 1 0 159 1 1 174 1 2 Hi Fan Lo ...

Page 22: ...ormance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 7 2 Protective Functions Overload prevention during heating NOTE Heating Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 High pressure performance chart 2 Operating current performance chart...

Page 23: ... 2 12 2 48 2 85 3 07 3 04 2 40 72 22 2 SHC 18 330 17 970 17 600 17 360 15 150 11 730 63 76 24 4 SHC 20 660 20 290 19 920 19 680 17 480 14 050 17 2 80 26 7 SHC 23 100 22 740 22 370 22 120 20 050 16 500 84 28 9 SHC 25 430 25 060 24 690 24 450 22 370 17 560 88 31 1 SHC 27 750 27 510 27 020 26 770 24 690 17 560 TC 32 420 31 780 31 050 30 600 25 550 17 760 CI 2 17 2 55 2 93 3 14 3 04 2 40 72 22 2 SHC 1...

Page 24: ...35 010 34 360 33 600 33 100 24 850 16 910 72 22 2 SHC 20 170 19 800 19 310 19 070 15 030 11 480 63 76 24 4 SHC 22 490 22 120 21 760 21 390 17 360 13 810 17 2 80 26 7 SHC 24 940 24 570 24 200 23 840 19 800 16 250 84 28 9 SHC 27 260 26 890 26 530 26 280 22 120 16 910 88 31 1 SHC 29 580 29 220 28 850 28 610 24 450 16 910 TC 35 720 35 120 34 400 34 000 24 930 16 970 72 22 2 SHC 16 620 16 380 16 010 15...

Page 25: ...60 63 76 24 4 SHC 20 050 20 050 19 920 25 550 19 800 19 800 19 680 17 2 80 26 7 SHC 22 490 22 490 22 370 27 870 22 370 22 250 22 120 84 28 9 SHC 24 820 24 820 24 820 30 170 24 690 24 570 24 450 88 31 1 SHC 27 140 27 140 27 140 30 170 27 020 26 890 26 770 TC 30 490 30 480 30 450 30 400 30 330 30 160 30 020 CI 0 20 0 33 0 60 0 86 1 13 1 45 72 22 2 SHC 14 180 14 180 14 180 23 230 14 180 14 050 14 050...

Page 26: ... 76 24 4 SHC 20 410 20 410 20 290 25 550 20 290 20 170 20 170 17 2 80 26 7 SHC 22 860 22 860 22 740 27 870 22 740 22 610 22 610 84 28 9 SHC 25 180 25 180 25 180 30 200 25 060 25 060 24 940 88 31 1 SHC 27 510 27 510 27 510 30 950 27 380 27 380 27 260 TC 30 910 30 940 30 980 31 000 31 010 30 930 30 880 72 22 2 SHC 14 420 14 420 14 420 23 230 14 420 14 420 14 420 67 76 24 4 SHC 16 740 16 740 16 740 2...

Page 27: ...18 670 18 730 18 780 18 820 18 850 CI 1 80 1 88 1 97 2 05 2 14 8 13 3 TH 20 120 20 190 20 240 20 280 20 320 CI 1 87 1 96 2 06 2 15 2 24 13 10 6 TH 21 640 21 710 21 770 21 810 21 840 CI 1 95 2 05 2 15 2 25 2 35 18 7 8 TH 23 320 23 390 23 450 23 500 23 530 CI 2 04 2 15 2 26 2 37 2 47 23 5 0 TH 25 100 25 170 25 230 25 280 25 310 CI 2 14 2 26 2 37 2 49 2 61 28 2 2 TH 26 960 27 030 27 090 27 140 27 160...

Page 28: ...10 20 600 20 670 20 740 CI 2 11 2 21 2 31 2 40 2 50 8 13 3 TH 21 990 22 090 22 180 22 260 22 330 CI 2 20 2 31 2 41 2 52 2 62 13 10 6 TH 23 630 23 730 23 830 23 920 23 990 CI 2 30 2 42 2 53 2 65 2 76 18 7 8 TH 25 440 25 560 25 660 25 750 25 820 CI 2 42 2 54 2 67 2 79 2 91 23 5 0 TH 27 360 27 480 27 590 27 680 27 140 CI 2 54 2 68 2 81 2 94 3 01 28 2 2 TH 29 370 29 490 29 600 29 700 27 580 CI 2 68 2 ...

Page 29: ...is air velocity ft sec Vertical distance ft Room air temp 80 F 26 7 C Fan speed High Cooling Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 Flap angle 45 Axis air velocity 45 Flap angle 60 Axis air velocity 60 5 5 Air Throw Distance Charts Indoor Unit CS KE30NKU 0 5 10 15 0 5 10 15 20 25 30 0 5 10 15 0 5 10 15 20 25 30 29 ...

Page 30: ... distance ft Axis air velocity ft sec Vertical distance ft Room air temp 80 F 26 7 C Fan speed High Cooling Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 Flap angle 45 Axis air velocity 45 Flap angle 60 Axis air velocity 60 Indoor Unit CS KE36NKU 0 5 10 15 0 5 10 15 20 25 30 0 5 10 15 0 5 10 15 20 25 30 30 ...

Page 31: ...erformance at 230V Single phase 60Hz Rating conditions Running amp 0 5 Power input 43 14 8 3 027 15 3 3 070 Indoor UnitOutdoor Unit Fan Motor Fan Motor Compressor Performance at 208V Single phase 60Hz Rating conditions Running amp 0 4 Power input 39 17 6 3 251 Heating Cooling 230V 208V 2 Voltage 208V 1 Voltage 230V 18 0 3 290 Indoor UnitOutdoor Unit Fan Motor Fan Motor Compressor Performance at 20...

Page 32: ... phase 60Hz Rating conditions Running amp 0 5 Power input 43 17 7 3 607 18 2 3 650 Indoor UnitOutdoor Unit Fan Motor Fan Motor Compressor Performance at 208V Single phase 60Hz Rating conditions Running amp 0 4 Power input 39 21 5 3 961 Heating Cooling 230V 208V 2 Voltage 208V 1 Voltage 230V 21 9 4 000 Indoor UnitOutdoor Unit Fan Motor Fan Motor Compressor Performance at 208V Single phase 60Hz Rati...

Page 33: ... 4 WHT BLK BLK BLK BLK BLK BLK BLK BLK FLAP MOTOR EVAPORATOR GND RED ORG YEL PNK BLU 1 2 6 7 1 2 6 5 5 7 DCM 7P WHT RED WHT YEL 4 4 3 3 BLK BLU 4 5 6 1 2 3 T10 6P BLU AC IN TO OUTDOOR UNIT TERMINAL BASE FAN MOTOR 3 U2 2 U1 1 GND BLK BLK BLK BLK COIL THERMISTOR OPERATION SW ROOM THERMISTOR M M COM RED WHT BLK SI GRN YEL 1 1 2 2 PL ELEC J B GRN 8FA2 5251 12400 1 6 2 Electric Wiring Diagrams Indoor U...

Page 34: ...EM ASSY 1 2 3 4 5 6 REACTANCE WHT 2P CONNECTOR WHT 3P CONNECTOR WHT WHT WHT WHT RED RED PINK RED PINK WHT WHT WHT WHT WHT WHT BLU BLU U V W BLK BLK BLK BLK YEL YEL ORG GRY YEL WHT RED COMP A TH COIL OUTDOOR 7P CONNECTOR WHT 2P CONNECTOR RED 2P CONNECTOR BLK WHT WHT BLK BLK BLK WHT BLK BLK BLK 1 4 5 6 POWER RELAY GND GND TO INDOOR UNIT POWER SUPPLY V U W CM N L HIGH PRESSURE SWITCH FERRITE CORE TER...

Page 35: ...e Emergency operation is available when the remote controller malfunctions has been lost or otherwise cannot be used The set temperature is 4 F 2 C below the detected room temperature in the case of cooling operation and 4 F 2 C above the room temperature in the case of heating operation The flap and fan speed settings are AUTO GREEN RED Lamp Off COOL HEAT STOP When AUTO mode is selected the micro...

Page 36: ...k appears on the remote controller The main unit display lamp also becomes dimmer COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F 1 C when 30 minutes have passed after the selection was made and then another 2 F 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selecte...

Page 37: ...the outside temperature of 57 F 14 C or less or 63 F 17 C or more the noise reducing control is not available 2 In the noise reducing operation the fan s maximum motor speed is limited to 500rpm Also the maximum frequency Hz is controlled in the cooling 30Hz or heating operation 30Hz In Cooling Operation Specifications Cooling Heating Cooling Heating 55 dB A 55 dB A 47 dB A 47 dB A Noise Reducing ...

Page 38: ...Switch SW01 Switch No 2 ON OFF Max Current Value CU KE30NKU CU KE36NKU 14 0A 17 0A 22 0A 24 0A 1 When the high load is given Outside temperature is high in the cooling operation or outdoor temperature is low in the heating operation the capacity is reduced When the maximum current value change function is to be enabled make sure to receive the approval of the client 2 The maximum capacity for cool...

Page 39: ...e drops to below 36 F 2 C continuously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will work less than the maximum frequency until it is turned off Approx 133 56 At stability of operation At start of operation A High LL Stopped A B C B Indoor heat exchanger A Control start B Control end Set fan speed 77 25 86 30 Approx 95 35 a b c d a b c ...

Page 40: ...alve ON Outdoor heating exchanger temp is over 57 2 F 14 C Defrosting operation lasts 12 minutes maximum 2 minutes after it is stopped compressor is ON 4 way valve is ON Outdoor fan is ON If the air conditioner is turned off during the defrosting cycle it will continue defrosting and turn itself off after defrosting is completed Compressor 1 minute after it is stopped compressor is ON Outdoor fan ...

Page 41: ...s and hold the remote controller QUIET button and 1 HR TIMER button Then press and hold the ACL reset button with a pointed object such as the tip of a pen After 5 seconds release ACL button first then release QUIET and 1 HR TIMER buttons oP 1 test run appears blinking in the remote controller clock display area Step 2 Next press the 1 HR TIMER button twice to change the display from oP 1 to oP 2 ...

Page 42: ...R FAILURE 7 REACTOR FAILURE 8 HIGH PRESSURE SW FAILURE 9 OLR FAILURE 10 MAGNETIC COIL FAILURE 1 HIC OR POWER TR FAILURE 2 O D FAN NOT OPERATING 3 INSTANTANEOUS POWER STOPPAGE 4 SERVICE VALVE NOT OPENED 5 O D FAN BLOCKED 6 CONTINUOUS OVERLOAD OPERATION 7 COMPRESSOR FAILURE 8 O D PCB FAILURE 1 EXTERNAL ROM DATA FAILURE 2 O D PCB FAILURE 1 INSTANTANEOUS POWER STOPPAGE 2 HIC OR POWER TR FAILURE 3 O D ...

Page 43: ... function fails to operate Check the indoor unit Is the fuse blown Replace the controller Replace the circuit board or the fuse No indicators illuminate and the indoor fan does not rotate Check the power voltage Normal Blown 43 ...

Page 44: ...ent between inter unit wirings 1 and 2 Connect a 5 k ohm resistor between inter unit wirings 2 and 3 When the voltage at both ends is measured approximately 12 to 15V DC must be output and the multimeter pointer must bounce once every 8 seconds Or instead of measuring the voltage you can insert an LED jig and check that the LED flickers once every 8 seconds Control No Check items unit operation Ap...

Page 45: ...p short circuit work or inter unit wiring removal turn off the power to avoid an electric shock Release the terminal strip short circuit after the completion of self diagnostics Do not perform the short circuit work between any other terminals except for specified ones on the specified terminal strip If such work is performed between the incorrect terminals the unit might be broken Fig 1 Outdoor U...

Page 46: ...te controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after the operation start 1 Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Remove the short circuit between the terminals 2 and 3 on the outdoor unit terminal strip 3 Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 4 ...

Page 47: ...peration start 1 Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Disconnect the cable from the terminal 3 on the Outdoor unit terminal strip Fig 6 Defect in the inter unit cable 1 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after the oper...

Page 48: ...ouble symptom 1 The fan does not stop when the unit stops Indoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor unit controller 3 locations Diagnostic results All of the above measured values are normal Fan motor trouble Replace t...

Page 49: ...vides feedback of motor rotation speed from the motor to the outdoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during outdoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during outdoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble There...

Page 50: ...distance from the noise source 1 Use shielded wires 2 Move unit away from the noise source Trouble Either of the following trouble may occur 1 The unit may stop suddenly during operation 2 Indicator lamps may flicker 2 Electromagnetic interference This refers to noise generated by high speed switching of the microcomputer and compressor This noise radiates through space and returns to the electric...

Page 51: ...g 1 9 1 2 Indoor Unit Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Note that the ground line terminal should be skipped for the check 9 1 3 Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and meas...

Page 52: ...5 Fig 6 Fuse 9 2 Checking Continuity of Fuse on PCB Ass y Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 Check for continuity using a multimeter as shown in Fig 6 52 ...

Page 53: ...use of a change in composition of the remaining refrigerant Therefore do not add new refrigerant Instead recover the remaining refrigerant with the refrigerant recovery unit Then after evacuation totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state in liquid phase When refrigerant R410A is used the composition will differ depending on ...

Page 54: ...n R410A refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work Caution in case of R410A leak Check for possible leak points with the special leak detector for R410A If a leak occurs inside the room immediately provide thorough ventilation A D Flare tool for R410A A D Conventional flare tool R22 Spacer 10 2 Checklist before Servicing Use a clutch type...

Page 55: ...s which can be com monly used for R22 R407C and R410A CAUTION The above tools specifically for R410A must not be used for R22 and R407C Doing so will cause malfunction of the unit For the above vacuum pump 1 2 and vacuum pump adapter 3 those for R22 type units can be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C For details on tubing i...

Page 56: ...it quickly 3 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 4 Evacuation Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back The equipment may be damaged i...

Page 57: ...use an electronic scale for charging refrigerant In this case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air condi...

Page 58: ...lux and wax for R410A Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 5 Evacuation Use a solenoid valve installed vacuum pump s...

Page 59: ... R410A for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 10 8 2 Use of Existing Tubing If replacing an older unit that used refrigerant R22 with a R410A unit do not use its existing tubing Instead completely new tubing must be used CAUTION Never charge additional refrigerant if refrigerant is leaking from the unit Fol...

Page 60: ...Operating Instructions CS KE30NKU CU KE30NKU CS KE36NKU CU KE36NKU 852 6 4181 221 00 2 APPENDIX A A 1 ...

Page 61: ...s CU KE30NKU CU KE36NKU Operating Instructions Panasonic Corporation 1006 Kadoma Kadoma City Osaka Japan 85264181221002 CV6233187112 This air conditioner uses the refrigerant R410A Before operating the unit read these operating instructions thoroughly and keep them for future reference ...

Page 62: ...ration If not in Auto Operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Quiet Operation The fan rotates slower than the fan speed setting to provide a quieter operating sound Unoccupied This function prevents the room temperature from decreasing too much or increasing too much when no one is in the room and operate...

Page 63: ... outdoor units by users Engage authorized dealer or specialist for cleaning In case of malfunction of this appliance do not repair by yourself Contact to the sales dealer or service dealer for a repair Refrigerant gas leakage may cause fire For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning Pull off the power plug from a receptacle or switch off the...

Page 64: ...cted by copper tubes through which refrigerant gas flows Drain Hose Moisture in the room condenses and drains off through this hose Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components INDOOR UNIT Air Intakes Remote Controller Refrigerant Tubes Drain Hose OUTDOOR UNIT Air Outlet Air Outlet NOTE REMOTE CONTROL receiver This s...

Page 65: ...k with ON OFF program Timer ON Timer OFF Timer 1 hour OFF Timer 5 NIGHT SETBACK 6 Confirmation of transmission 7 Auto flap indication Flap angle indication Sweep indication 8 High power operation 9 UNOCCUPIED 10 Quiet operation Displayed when setting timer Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is s...

Page 66: ... follows NOTE SWEEP CANCEL button SENSOR button When you press this button use a small tipped object such as a ballpoint pen the mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly If the remote controller is located near a heat source such as a space heater or in direct sunlight pr...

Page 67: ...is button in the HEAT DRY or COOL mode the mark appears in the display and the remote controller will automatically adjust the set temperature to save energy HIGH POWER button If this button is pressed during HEAT DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1step above HIGH UNOCCUPIED button For details see 8 U...

Page 68: ...nd during air conditioner operation the transmitter on the remote controller should be pointed towards the receiver on the indoor unit Make sure that there are no objects between the remote controller and receiver which could block the signal The batteries last about six months depending on how much you use the remote controller Replace the batteries when the remote controller s display fails to l...

Page 69: ...and change the settings as desired STEP 1 Press the MODE selector button and select the desired mode For heating operation For dehumidifying operation For cooling operation For fan only operation o o o o STEP 2 To start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature rang...

Page 70: ...circulate air without any temperature control follow these steps STEP 1 Press the MODE selector button to switch to the fan mode STEP 2 Press the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice or STEP 2 STEP 1 STEP 3 NOTE When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 mi...

Page 71: ...h when no one is in the room and operates automatically to save energy Press the UNOCCUPIED button The mark appears in the display To release the unoccupied function press the UNOCCUPIED button again Unoccupied Indication Even if Unoccupied Mode is ON it will be disabled if the air conditioner is in operation Unoccupied Function can be set and released through all operational modes regardless of w...

Page 72: ... 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 t...

Page 73: ...he setting of the current time NOTE Operation Indication 1 Press the OFF TIME setting button once The timer indication is displayed and the present OFF time is shown 2 Press the Advance Return button until AM 11 00 is displayed The timer indication blinks The time can be set in 10 minute increments Holding down the button advances the time rapidly in 10 minute increments 3 Wait a few seconds and t...

Page 74: ...tton appears in the display Cancellation procedure Press the ON OFF operation button to turn the unit off wait for the unit to stop operating and then press the ON OFF operation button again The 1 Hour Timer function is now cancelled and the unit operates normally If while the 1 Hour Timer function is operating the 1HR TIMER button is pressed once to cancel the function and then again the unit con...

Page 75: ...r and the actual flap position may no longer match If this should happen shut off the unit wait for the flap to close and then turn on the unit again the flap position will now be normal again Do not have the flap pointed down during cooling operation Condensation may begin to form around the air vent and drip down OPERATION WITHOUT THE REMOTE CONTROLLER If you have lost the remote controller or i...

Page 76: ...ide while pulling the panel towards you If the front panel is difficult to remove grasp both ends of it and lift it up slightly Move it to the left and disengage the left arm then move it to the right and disengage the right arm Remounting Grasp the sections near the front panel arms on both sides and hold the front panel so that it is nearly horizontal Push the arm shafts towards the outside so t...

Page 77: ...r coil Outdoor Unit Remove obstruction Poor cooling or heating performance 1 Dirty or clogged air filter 1 Clean air filter to improve airflow 2 Heat source or many people in room 2 Eliminate heat source if possible 3 Doors and or windows are open 3 Shut them to keep the heat or cold out 4 Obstacle near air intake or air discharge port 4 Remove it to ensure good airflow 5 Thermostat is set too hig...

Page 78: ...door Hi Indoor H M L Heating Operation dB A dB A 185 2 84 0 11 13 16 41 15 16 9 1 16 300 1065 230 32 0 14 5 Model No Outdoor Unit Indoor Unit CS KE36NKU CU KE36NKU 34 000 10 900 34 000 55 Single phase 208 230 V 60 Hz 10 00 3 20 10 00 10 50 4 10 10 50 36 000 14 000 36 000 55 35 13 16 37 1 32 13 3 8 910 940 340 49 44 39 49 44 39 Heating Capacity Operation Sound Unit Dimensions H W D Indoor unit Incl...

Page 79: ......

Page 80: ...INSTALLATION INSTRUCTIONS APPENDIX B CS KE30NKU CU KE30NKU CS KE36NKU CU KE36NKU 852 6 4190 587 00 0 A 2 ...

Page 81: ... Inter unit Connections 3 9 Mounting 3 10 Frame Fastening Method 3 11 Drain Hose 4 HOW TO INSTALL THE OUTDOOR UNIT 23 4 1 Wiring Instructions for the Outdoor Unit 4 2 Routing the Tubing and Wiring 5 REFRIGERANT TUBING 24 5 1 Use of the Flaring Method 5 2 Flaring Procedure with a Flare Tool 5 3 Caution before Connecting Tubes Tightly 5 4 Connecting Tubing between Indoor and Outdoor Units 5 5 Insula...

Page 82: ... connection points and a possible fire hazard 7R SUHYHQW SRVVLEOH KD DUGV IURP LQVXODWLRQ IDLOXUH the unit must be grounded 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 ...

Page 83: ...HFN that no metal scraps or bits of wiring have been left inside the unit being serviced Others 9HQWLODWH DQ HQFORVHG DUHDV ZKHQ LQVWDOOLQJ RU WHVWLQJ the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas RQILUP XSRQ FRPSOHWLQJ LQVWDOODWLRQ WKDW QR UHIULJHUDQW gas is leaking If escaped gas comes in contact with a stove gas water heater elec...

Page 84: ... Insulation Material If you wish to purchase these materials separately from a local source you will need 1 Deoxidized annealed copper tube for refrigerant tub ing as detailed in Table 2 Cut each tube to the appropriate lengths 1 to 1 4 30 cm to 40 cm to dampen vibration between units Table 2 2 Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing Wa...

Page 85: ...away from any antenna or power lines or connecting wires used for television radio telephone security system or intercom Electrical noise from any of these sources may affect operation Drain hose Indoor unit Outside drainage Fig 1 3 304 3 304 Front View 3 304 Fig 2 INDOOR UNIT Tubing length L OUTDOOR UNIT Elevation difference H Fig 3a WARNING To prevent abnormal heat genera tion and the possibilit...

Page 86: ...so that the flow of air at the intake port or exhaust port is not blocked and so that sufficient space is ensured for maintenance to be carried out without trouble In general the top also must be unob structed Fig 5a provide a solid base level concrete pad concrete block 6 x 1 4 15 x 40 cm beams or equal a minimum of 6 15 cm above ground level to reduce humidity and pro tect the unit against possi...

Page 87: ...558 4 3 45 8 4 4 3 5 40 3 5 8 8 3 45 08 25 04 3 8 D 4 89 54 49 8 68 99 8 3 856 9 5 9 854 04 4 04 558 40 3 8 D 2 2 2 Precautions for Installation in a Snowy Area 62 583 9 5 2 0 8 4 3 03 3 945 6 0 4 5804 5 5 558 40 9 5 2 9 58 62 583 4 62 583 9 5 2 049 22 4 08 04 1 90 5 5 558 40 62 583 5 4 054 3 9 083 4 40 3 9 9 8 0 4 58 52 9 4 9 5 049 22 054 54 855 9 C 5 9 854 04 5 4 83 9 8 9 3 9 1 4 5 68 4 40 853 0...

Page 88: ...2 14 31 32 13 32 25 32 Air Intake Air discharge Unit inch Air Air Intake 1 4 11 32 discharge Air discharge 2 2 3 Dimensions of Wind proof Duct Reference diagram for CU KE30NKU CU KE36NKU 9 16 21 9 16 1 4 22 1 4 23 7 16 4 31 32 4 31 32 21 25 32 11 13 16 11 13 16 1 5 16 15 16 18 15 16 1 31 32 1 31 32 1 31 32 8 21 32 1 3 16 22 7 8 Equivalent to the reverse side Unit inch 4 1 4 hole Reference diagram ...

Page 89: ...8 5 9 2 9 5 854 4 8 8 5 5 558 40 5 9 2 0 8 854 58 8 8 3 9 45 22 8 4 0 5 5 558 40 2 062 40 049 22 054 49 22 054 04 2 8 2 85 9 CAUTION 854 4 56 3 9 8 3 04 56 4 5 9 2 9 3 9 45 22 8 4 0 5 5 558 40 CAUTION 854 4 5 90 9 3 9 8 3 04 56 4 49 22 054 04 854 8 8 85 9 49 22 054 0 04 1 9 04 5 2 9 49 22 054 0 04 1 9 04 04 1 9 58 5 2 9 04 5 2 9 04 58 358 04 58 358 4 8 5 58 4 58 4 58 4 40 04 40 04 58 4 58 4 58 4 4...

Page 90: ...for snow proof duct Unit left reinforcement bracket for snow proof duct Fastened by screws at 14 locations Fastened by screws at 3 locations Fixing with front panel 2 9 32 hole 2 9 32 hole 2 9 32 hole 2 9 32 hole 9 32 X13 32 hole 15 11 32 Fastened by screws Same on the reverse side Fastened by screws at 2 locations 28 13 16 16 15 16 9 1 8 31 32 2 7 32 24 3 16 28 3 16 23 Fixing with rear panel 5 8 ...

Page 91: ... the front of unit 04 58 358 Obstacle to the rear of unit 04 2 40 049 22 054 2 062 40 049 22 054 58 358 40 9 Note 4 9 9 4 0 5 5 9 2 3 9 45 22 8 4 0 5 5 558 40 9 2 9 54 5 90 9 56 09 56 4 56 09 56 4 56 09 25 1 4 5 9 2 56 09 25 1 4 5 9 2 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 04 58 358 ...

Page 92: ...lation in front rear rows Obstacles to the front and rear of unit 56 4 5 90 9 3 9 8 3 04 56 4 0 8 5 9 2 5 854 58 5 9 2 5 8 8 3 9 45 22 8 4 0 5 5 558 40 56 4 5 90 9 3 9 8 3 04 56 4 0 8 5 9 2 5 854 58 5 9 2 5 8 8 3 9 45 22 8 4 0 5 5 558 40 40 04 4 0 8 5 3 8 5 4 0 8 5 3 8 5 4 0 8 5 3 8 5 04 58 358 04 58 358 4 0 8 5 3 8 5 4 0 8 5 3 8 5 4 0 8 5 3 8 5 ...

Page 93: ...ap For details refer to Switching drain hose and drain cap on page 21 3 2 Make a Hole 1 Place the rear panel from the indoor unit on the wall at the location selected Make sure the panel is horizontal using a carpenter s level or tape measure to measure down from the ceiling Wait until after cutting the hole before attaching the rear panel to the wall 2 Determine which side of the unit you should ...

Page 94: ...n the rear panel Using the 8 screw holes with mark is recommended to attach the rear panel securely to the wall See either Item a or b below depending on the wall type a If Wooden Wall 1 Attach the rear panel to the wall with the 8 screws provided Fig 13 If you are not able to line up the holes in the rear panel with the beam locations marked on the wall use rawl plugs or toggle bolts to go throug...

Page 95: ... to remove it Fig 17d How to replace the grille 1 While aligning the top edge of the grille with the frame move the grille horizontally and insert the top and bottom into the frame 2 Press the grille firmly with your hand to ensure no gap exists between the frame and grille 3 Tighten the 6 screws And fix the removed covers in place 4 Grasp the sections near the front panel arms on both sides and h...

Page 96: ...ring diagram 2 Provide a power outlet to be used exclusively for each unit with a power supply disconnect and cir cuit breaker for overcurrent protection provided in the exclusive line 3 To prevent possible hazards due to insulation failure the unit must be grounded 4 Each wiring connection must be done tightly and in accordance with the wiring system diagram Wrong wiring may cause the unit to mis...

Page 97: ...tdoor units Electrical noise may affect the operation To avoid the risk of electric shock each air conditioner unit must be grounded For the installation of a grounding device please observe local electrical codes Grounding is necessary especially for units using inverter circuits in order to release charged electricity and electrical noise caused by high tension Otherwise electrical shock may occ...

Page 98: ...the right arm 3 Remove the screw on the right side cover plate and open the cover Fig 25 4 Route the inter unit wiring from the back of the indoor unit and pull it toward the front for connec tion Fig 26a 26b 5 Connect the inter unit wiring to the corresponding terminals on the terminal plate Fig 26a 26b while referring to the wiring diagram 6 Be sure to secure the wiring with the provided clamp W...

Page 99: ...the terminal screw 4 Shape the loop wire properly place it on the termi nal plate and fix it securely with the removed termi nal screw using a screwdriver For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insulation to expose the stranded wiring about 3 8 10 mm and tightly twist the wire ends Figs 30 and 31 2 Using a screwdriver remove the terminal screw s on the terminal...

Page 100: ...t the indoor unit so it is securely seated on the rear panel Fig 36 3 Carefully bend the tubing if necessary to run along the wall in the direction of the outdoor unit and then tape as far as the fittings See Caution on page 25 The drain hose should come straight down the wall to a point where water runoff won t stain the wall 4 Connect the refrigerant tubing to the outdoor unit After performing a...

Page 101: ...in hose Slide the drain hose fully onto the drain pan outlet It will be easy to slide when water is added Check that the screw holes in the drain bracket and the drain pan outlet are aligned and securely in contact then fasten them with the screw After attaching the drain hose check that it is attached securely Fig 40b Drain cap Use a Phillips screwdriver to push the drain cap in firmly If it is d...

Page 102: ...nfirm that the gap is appropriate less than 2 mm 3 11 Drain Hose a The drain hose should be slanted downward to the outdoors Fig 44 b Never form a trap in the course of the hose c If the drain hose will run in the room insulate the hose with insulation so that chilled condensation will not damage furniture or floors Fig 45 Foamed polyethylene or its equivalent is recom mended NOTE WARNING Risk of ...

Page 103: ...tions are completed check that all connections are correct as shown in the wiring sys tem diagram 4 Be sure to ground the unit according to your local codes 4 2 Routing the Tubing and Wiring The tubing and wiring can be extended out in 3 direc tions front rear and right Use a nipper or similar tool to cut out the knockout holes for the inter unit control wiring outlet power wiring outlet and tubin...

Page 104: ...e tool Figs 49a and 49b Use RIDGID or equivalent A good flare should have the following characteristics inside surface is glossy and smooth edge is smooth tapered sides are of uniform length 5 3 Caution before Connecting Tubes Tightly a Be sure to apply a sealing cap or water proof tape to prevent dust or water from getting into the tubes before they are used b Be sure to apply refrigerant lubrica...

Page 105: ...turn Fig 55 3 Clamp the tubing bundle to wall using 1 clamp approx every 47 120 cm Do not wind the armoring tape too tightly since this will decrease the heat insulation effect Also be sure the con densation drain hose splits away from the bundle and drips clear of the unit and the tubing 5 7 Finishing the Installation After finishing insulating and taping over the tubing use sealing putty to seal...

Page 106: ...for evacuation Table 7 Hi Lo Indoor unit Outdoor unit Manifold valve Exclusively for R410A Pressure gauge Vacuum pump Charging hose Exclusively for R410A Vacuum pump adapter Exclusively for R410A with reverse flow prevention Fig 57 CAUTION Be sure to use a manifold valve for air purging If it is not avail able use a stop valve field sup ply for this purpose The Hi knob of the manifold valve must a...

Page 107: ...lightly to release the pressure Then remove the hose 11 Fasten the valve cap on the wide tube service port securely with an adjustable wrench or box wrench Next mount the valve cap on the service valve and tighten it to 170 lbs in 200 kgf cm with a torque wrench This process is very important to prevent gas from leaking from the system 12 Test run the air conditioner See next page 13 While the air...

Page 108: ...R lamp and on the main unit blinking Fig 59c IWHU PLQXWHV WKH V VWHP VKLIWV LQWR FRROLQJ RSHUD tion and cool air will start to be felt Cooling mode test run is unaffected by the room temperature 3 Press the ON OFF operation button of the remote con troller again to stop the test run Fig 59a 4 Finally press the ACL Reset button of the remote con troller to release it from Test Run mode to return to...

Page 109: ...ide tube valve stem Then quickly stop the unit 5 Disconnect all gauges and hoses and replace the valve caps as they were before Basic Functions of the Service Valves The basic functions of the service valves are given in Table 8 below Action Narrow Tube Service Valve 2 Way Wide Tube Service Valve 3 Way CLOSED Fully OPEN Fully OPEN Shipping Operating and test running the air conditioner Measuring p...

Page 110: ...om the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic interference Where there is an obstacle between the remote con troller and the air conditioner since a check signal is sent from the remote controller every 5 minutes 7 1 Mounting on a Wall Before mounting the remote controller press the ...

Page 111: ...with a pointed object such as the tip of a pen After 5 seconds release the ACL button first then release the QUIET and 1HR TIMER buttons oP 1 Test Run appears blinking in the remote controller clock display area 4 Each time the 1HR TIMER button is pressed the display changes as shown below Press this button 3 times to change the display to oP 7 Address setting Fig 64 5 oP 7 has now been selected f...

Page 112: ...DC1111 0 ...

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Panasonic CS-KE30NKU, Technical & Service Manual

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