Panasonic CS-RE18JKE Service Manual Download

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9 Electronic Circuit Diagram

9.1.

Indoor Unit

Summary of Contents for CS-RE18JKE

Page 1: ...8JKE CS RE24JKE CU RE24JKE TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions 3 2 Specifications 5 3 Features 8 4 Location of Controls and Components 9 4 1 Indoor Unit 9 4 2 Outdoor Unit 9 4 3 Remote Co...

Page 2: ...peration 42 13 3 Protection Control For Heating Operation 44 14 Servicing Mode 45 14 1 Auto OFF ON Button 45 14 2 Remote Control Button 46 15 Troubleshooting Guide 47 15 1 Refrigeration Cycle System 4...

Page 3: ...ion An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock or fire 9 This equipment is str...

Page 4: ...tenance 6 Pb free solder has a higher melting point than standard solder typically the melting point is 50qF 70qF 30qC 40qC higher Please use a high temperature solder iron In case of the soldering ir...

Page 5: ...utdoor Noise H L dB A 47 52 Power Level dB 61 66 H e a t i n g Capacity kW 0 90 5 80 8 00 0 90 8 60 9 90 BTU h 3070 19800 27300 3070 29300 33800 Kcal h 770 4990 6880 770 7400 8510 Running Current A 7...

Page 6: ...n 16 00 565 17 30 611 Hi Cool m3 min ft3 min 16 30 575 18 4 650 Heat m3 min ft3 min 17 90 630 19 5 690 SHi Cool m3 min ft3 min 18 10 639 19 30 682 Heat m3 min ft3 min 18 50 653 20 0 709 Outdoor Airflo...

Page 7: ...8JKE CU RE24JKE Indoor Heat Exchanger Fin Material Aluminium Pre Coat Aluminium Pre Coat Fin Type Slit Fin Slit Fin Row u Stage u FPI 2 u 15 u 19 2 u 15 u 21 Size W u H u L mm 810 u 315 u 25 4 810 u 3...

Page 8: ...Piping CS CU RE18JKE long piping up to 20 meter CS CU RE24JKE long piping up to 30 meter Easy to use remote control Quality Improvement Random auto restart after power failure for safety restart opera...

Page 9: ...9 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control...

Page 10: ...10 5 Dimensions 5 1 Indoor Unit Remote Control...

Page 11: ...11 5 2 Outdoor Unit 5 2 1 CU RE18JKE...

Page 12: ...12 5 2 2 CU RE24JKE...

Page 13: ...13 6 Refrigeration Cycle Diagram...

Page 14: ...14 7 Block Diagram 7 1 CS RE18JKE CU RE18JKE...

Page 15: ...15 7 2 CS RE24JKE CU RE24JKE...

Page 16: ...16 8 Wiring Connection Diagram 8 1 Indoor Unit...

Page 17: ...17 8 2 Outdoor Unit 8 2 1 CU RE18JKE...

Page 18: ...18 8 2 2 CU RE24JKE...

Page 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit...

Page 20: ...20 9 2 Outdoor Unit 9 2 1 CU RE18JKE...

Page 21: ...21 9 2 2 CU RE24JKE...

Page 22: ...22 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board...

Page 23: ...23 10 1 2 Power Printed Circuit Board 10 1 3 Indicator Printed Circuit Board...

Page 24: ...24 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board 10 2 1 1 CU RE18JKE...

Page 25: ...25 10 2 2 Main Printed Circuit Board 10 2 2 1 CU RE24JKE...

Page 26: ...26 10 2 3 Power Printed Circuit Board 10 2 3 1 CU RE24JKE...

Page 27: ...rect sunlight or rain be careful that heat radiation from the condenser is not obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the spaces indicate...

Page 28: ...extended line is the centre of the hole Another method is by putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the distance namely 128 mm for l...

Page 29: ...29 1 For the right rear piping 2 For the right and right bottom piping 3 For the embedded piping...

Page 30: ...outdoor unit shall be approved polychloroprene sheathed 4 u 1 5 mm2 flexible cord type designation 245 IEC 57 or heavier cord Secure the connecting cable onto the control board with the holder clampe...

Page 31: ...cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pipe 3 Please make...

Page 32: ...lign the center of piping and sufficiently tighten the flare nut with fingers Further tighten the flare nut with torque wrench in specified torque as stated in the table Connecting the Piping to Outdo...

Page 33: ...valves to OPEN using a hexagonal wrench 4 mm 8 Mount valve caps onto the 2 way valve and the 3 way valve Be sure to check for gas leakage 11 3 4 Connect the Cable to the Outdoor Unit 1 Remove the con...

Page 34: ...nnecting means should have minimum 3 0 mm contact gap Earth wire shall be Yellow Green Y G in colour and longer than other AC wires for safety reason 11 3 5 Pipe Insulation 1 Please carry out insulati...

Page 35: ...are depending on the air conditioner settings and the operation environment The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical...

Page 36: ...ue of T1 will increase up to 10qC T2 will decreased by 3qC and T3 will decreased up to 8qC The Auto Operation Mode shifting will take place whenever operation mode changed from Cooling Soft Dry to Hea...

Page 37: ...one fan speed only It starts when compressor starts operation and it stops 30 seconds after compressor stops operation 12 2 Airflow Direction 1 There are two types of airflow vertical airflow directe...

Page 38: ...ditioner is stopped using remote control the vane will shift to close position 12 2 2 Horizontal Airflow 1 Automatic horizontal airflow direction can be set using remote control the vane swings left a...

Page 39: ...ge the operation starting time From the above judgment the decided operation will start operate earlier than the set time as shown below 12 4 OFF Timer Control OFF timer can be set using remote contro...

Page 40: ...ing operation A will be applied 13 1 4 IPM Power transistor Prevention Control A Overheating Prevention Control 1 When the IPM temperature rises to 110qC compressor operation will stop immediately 2 C...

Page 41: ...es within 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 13 1 7 Compressor Tank Temperature Rise Protection Control a Control start conditions For 5 minutes the compressor...

Page 42: ...rature and Indoor pipe temperature judgment by microcontroller if fulfilled When Cooling or Dry mode is operated more than 20 minutes or more 3 This control stopped if Compressor stopped Remote contro...

Page 43: ...uring its normal operation 4 If indoor heat exchanger temperature is higher than 13qC for five minutes the fan speed will return to its normal operation 13 2 6 Freeze Prevention Control 2 1 Control st...

Page 44: ...e 14qC in order to avoid compressor overloading 13 3 3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown in below...

Page 45: ...ntrol to set change the advance setting of air conditioner operation 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF ON button is pressed co...

Page 46: ...onds by using pointer Press TIMER SET button until a beep sound is heard as confirmation of transmission code change To change the air quality sensor sensitivity Press and release by using pointer Pre...

Page 47: ...problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature a...

Page 48: ...s after an operation is started Cooling Mode Heating Mode Condition of the air conditoner Low Pressure High Pressure Electric current during operation Low Pressure High Pressure Electric current durin...

Page 49: ...on 2 Press the CHECK button on the remote controller continuously for 5 seconds 3 will be displayed on the remote controller display Note Display only for No transmitting signal no receiving sound and...

Page 50: ...tdoor air temperature sensor abnormality Continue for 5 sec O Outdoor temperature sensor defective or disconnected H28 Outdoor heat exchanger temperature sensor abnormality Continue for 5 sec O Outdoo...

Page 51: ...ransmission is checked whether it is normal Malfunction Caused Faulty indoor unit PCB Faulty outdoor unit PCB Indoor unit outdoor unit signal transmission error due to wrong wiring Indoor unit outdoor...

Page 52: ...re interconnected Malfunction Caused Wrong models interconnected Wrong indoor unit or outdoor unit PCBs mounted Indoor unit or outdoor unit PCBs defective Indoor outdoor unit signal transmission error...

Page 53: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors Malfunction Cause...

Page 54: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors Malfunction Caused F...

Page 55: ...ons A current transformer CT is detected by checking the compressor running frequency rated frequency and CT detected input current less than 0 65A for continuously 20 seconds Malfunction Caused CT de...

Page 56: ...termine abnormal fan motor feedback of rotation 2550rpm or 50rpm Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the...

Page 57: ...Decision Conditions During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused...

Page 58: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors Malfunction Caused Faul...

Page 59: ...tion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors Malfunction Caused Fau...

Page 60: ...ion Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors Malfunction C...

Page 61: ...lfunction Decision Conditions The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused Wrong models interconnected Wrong indoor unit and outdoor unit PCBs...

Page 62: ...ity Malfunction Decision Conditions If Patrol sensor feedback is 0V or 5V continuous for 6 hours Error will display only when the Patrol operation is ON Malfunction Caused Faulty connector connection...

Page 63: ...ration is used to determine abnormal fan motor Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operati...

Page 64: ...uring heating operation the temperature detected by the indoor pipe temperature sensor is above 60qC Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat...

Page 65: ...ecision Conditions Freeze prevention control takes place when indoor pipe temperature is lower than 2qC Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit he...

Page 66: ...nditions When heating operation when indoor pipe temperature is below 10qC When cooling operation when indoor pipe temperature is above 45qC Malfunction Caused Connector in poor contact Faulty sensor...

Page 67: ...eration of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level Malfunction Caused DC voltage peak due to power...

Page 68: ...checking the CT detected input current value and the compressor running frequency During startup and operating of cooling and heating input current 8 78 256 A Hz u compressor running frequency 0 25 G...

Page 69: ...lfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disco...

Page 70: ...detected by the outdoor pipe temperature sensor Malfunction Caused Outdoor pipe temperature rise due to short circuit of hot discharge air flow Outdoor pipe temperature rise due to defective of outdo...

Page 71: ...ated Heat Sink Overheating During operation of cooling and heating when heat sink temperature data 90 C is detected by the heat sink temperature sensor Malfunction Caused IPM overheats due to short ci...

Page 72: ...n of cooling and heating when compressor tank temperature data 112 C is detected by the compressor tank temperature sensor Malfunction Caused Refrigerant shortage refrigerant leakage 2 3 way valve clo...

Page 73: ...detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused Over current due to compressor failure Over current due to defectiv...

Page 74: ...eak due to compressor failure DC peak due to defective power transistor s DC peak due to defective outdoor unit PCB Troubleshooting Checking the power transistor Never touch any live parts for at leas...

Page 75: ...r Removal Procedures 16 1 1 To remove front grille 16 1 2 To remove horizontal vane WARNING High Voltage are generated in the electrical parts area by the capacitor Ensure that the capacitor has disch...

Page 76: ...76 16 1 3 To remove power electronic controller...

Page 77: ...77 16 1 4 To remove discharge grille 16 1 5 To remove control board...

Page 78: ...78 16 1 6 To remove cross flow fan and indoor fan motor...

Page 79: ...79...

Page 80: ...op Panel Fig 1 2 Remove the 10 screws of the Front Panel Fig 2 3 Remove the Top Cover of the Electronic Controller Fig 3 4 Remove the Control Board Fig 4 5 Remove the 8 screws of the Electronic Contro...

Page 81: ...ation Characteristics 17 1 1 CS RE18JKE CU RE18JKE Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature 27 19qC Remote control setting HI FAN COOL 16qC Compres...

Page 82: ...82 Cooling Characteristic at Different Piping Length Condition Indoor room temperature 27 19qC 35 qC Remote control setting HI FAN COOL 16qC Compressor frequency Fc Voltage 230 V...

Page 83: ...83 Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature 20 qC Remote control setting HI FAN HEAT 30qC Compressor frequency Fh Voltage 230 V...

Page 84: ...84 Heating Characteristic at Different Piping Length Condition Indoor room temperature 20 qC 7 6qC Remote control setting HI FAN HEAT 30qC Compressor frequency Fh Voltage 230 V...

Page 85: ...1 2 CS RE24JKE CU RE24JKE Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature 27 19qC Remote control setting HI FAN COOL 16qC Compressor frequency Fc Voltage...

Page 86: ...86 Cooling Characteristic at Different Piping Length Condition Indoor room temperature 27 19qC 35 qC Remote control setting HI FAN COOL 16qC Compressor frequency Fc Voltage 230 V...

Page 87: ...87 Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature 20 qC Remote control setting HI FAN HEAT 30qC Compressor frequency Fh Voltage 230 V...

Page 88: ...88 Heating Characteristic at Different Piping Length Condition Indoor room temperature 20 qC 7 6qC Remote control setting HI FAN HEAT 30qC Compressor frequency Fh Voltage 230 V...

Page 89: ...4 31 3 47 1 70 22 0qC 5 94 4 08 1 40 5 55 3 93 1 50 5 16 3 79 1 61 4 69 3 61 1 73 Outdoor Temp qC Indoor wet bulb temp 30 35 40 46 TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0qC 6 75 5 11 1 94 6 30 4...

Page 90: ...90 18 Exploded View and Replacement Parts List 18 1 Indoor Unit...

Page 91: ...H131350 m 21 INDICATOR HOLDER 1 CWD933021 m 22 CONTROL BOARD FRONT COVER 1 CWH13C1183 m 23 DISCHARGE GRILLE COMPLETE 1 CWE20C3007 m 24 FULCRUM 2 CWH621103 m 25 VERTICAL VANE 15 CWE241289 m 26 CONNECTI...

Page 92: ...8JKE CS RE24JKE REMARKS 49 INSTALLATION INSTRUCTION 1 CWF613910 m 50 INSTALLATION INSTRUCTION 1 CWF613911 m 51 INSTALLATION INSTRUCTION 1 CWF613912 m 52 INSTALLATION INSTRUCTION 1 CWF613913 m 53 INSTA...

Page 93: ...93 18 2 CU RE18JKE Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts...

Page 94: ...ER 1 CWH171039A 24 NUT TERMINAL COVER 1 CWH7080300J 25 SENSOR COMPLETE COMP TOP 1 CWA50C2185 26 HOLDER SENSOR 1 CWH32074 27 V COIL COMPLETE 4 WAYS VALVE 1 CWA43C2168J 28 V COIL COMPLETE EXPAND VALVE 1...

Page 95: ...95 18 3 CU RE24JKE Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts...

Page 96: ...1057 25 3 WAYS VALVE GAS 1 CWB011363 O 26 2 WAYS VALVE LIQUID 1 CWB021434 O 27 SOUND PROOF BOARD 1 CWH151197 28 TERMINAL COVER 1 CWH171039A 29 NUT TERMINAL COVER 1 CWH7080300J 30 SENSOR COMPLETE COMP...

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