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Panasonic CS-C9EKZW, Service Manual, Page: 48 / 57

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Panasonic CS-C9EKZW Service Manual Download Page 48

48

15.2.2.

CS-C9EKZW  CU-3C20EKH

Summary of Contents for CS-C9EKZW

Page 1: ...nd Components 10 4 1 Indoor Unit 10 4 2 Outdoor Unit 10 4 3 Remote Control 10 5 Dimensions 11 5 1 Indoor Unit Remote Control 11 5 2 Outdoor Unit 12 6 Refrigeration Cycle Diagram 13 7 Block Diagram 14 8 Wiring Connection Diagram 16 8 1 CS C9EKZW CU 2C18EKH 16 8 2 CS C9EKZW CU 3C20EKH 17 9 Printed Circuit Board 18 9 1 Indoor Unit 18 9 2 Indicator 20 9 3 Outdoor Unit 21 10 Installation Instruction 22...

Page 2: ... 39 12 2 Remote Control Button 39 12 3 Test Mode Timer Table 40 13 Troubleshooting Guide 41 13 1 Refrigeration Cycle System 41 13 2 Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current 42 13 3 Diagnosis Methods Of A Malfunction Of A Compressor 42 14 Disassembly and Assembly Instructions 43 14 1 Indoor Electronic Controllers Removal Procedures 43 14 2 Indoor F...

Page 3: ...rm location which is able to withstand the set s weight If the strength is not enough or installation is not properly done the set will drop and cause injury 5 For electrical work follow the local national wiring standard regulation and the installation instruction An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work ...

Page 4: ...g one of the following methods Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency In some countries permanent connection of this room air conditioner to the power supply is prohibited 1 Power supply connection to the receptacle using a power plug Use an approved power plug with earth pin for the connection to the socket 2 Power sup...

Page 5: ...1 unit 3 17 3 29 10 8 11 2 2 units 3 17 3 29 10 8 11 2 Starting Current A 15 0 Piping Connection Port Flare piping inch inch G Half Union 3 8 L Half Union 1 4 G 3 way valve 3 8 L 3 way valve 1 4 Pipe Size Flare piping inch inch G gas side 3 8 L liquid side 1 4 G gas side 3 8 L liquid side 1 4 Drain Inner diameter mm 12 Hose Length m 0 7 Dimensions Height inch mm 11 1 32 280 25 21 32 651 Width inch...

Page 6: ...W H L mm 610 x 315 x 25 4 560 x 609 6 x 44 Refrigerant Control Device Capillary Tube Refrigeration Oil c c SUNISO 4GDID or ATMOS M60 or ATMOS 56M Refrigerant R 22 g oz 700 x 2 24 7 x 2 Thermostat Protection Device Overload protector Capillary Length mm 680 Flow Rate l min 11 5 Inner Diameter mm 1 5 Air Filter Material Style P P Honeycomb Capacity Control Capillary Tube Compressor Capacitor µF VAC ...

Page 7: ... High 36 36 Low 26 26 High 56 54 Electrical Data Input Power W 55 50 820 770 1 120 1 070 1 210 1 150 1 850 1 750 1 920 1 840 Running Current A 0 25 0 23 3 6 3 7 4 9 5 1 5 3 5 5 8 1 8 3 8 3 8 7 EER W W BTU hW 2 93 3 04 10 0 10 4 2 52 2 60 8 6 8 9 2 98 3 06 10 2 10 5 2 82 2 93 9 6 10 0 3 13 3 18 10 7 10 9 Starting Current A A unit 15 0 15 0 B unit 21 0 21 0 Piping Connection Port Flare piping inch i...

Page 8: ...minium Blue Coat Fin Type Slit Fin Louver Fin Row Stage 2 x 15 Plate fin configuration forced draft 2 x 24 FPI 19 16 Size W H L mm 610 x 315 x 25 4 756 0 x 609 6 x 44 719 5 Refrigerant Control Device Capillary Tube Refrigeration Oil c c SUNISO 4GDID or ATMOS M60 or ATMOS 56M Refrigerant R 22 g oz A unit 770 27 2 B unit 990 34 9 Thermostat Protection Device Overload protector Capillary Tube Length ...

Page 9: ...nce the ability to collect dust and dirt in the air Auto Refresh Deo Regenerated the deodorizing performance so it stays the same as when it was first used Quality Improvement Random auto restart after power failure for safety restart operation Gas leakage protection Prevent compressor reverse cycle Inner protector to protect Compressor Noise prevention during soft dry operation Blue Coated Conden...

Page 10: ...10 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...

Page 11: ...11 5 Dimensions 5 1 Indoor Unit Remote Control 5 1 1 CS C9EKZW ...

Page 12: ...12 5 2 Outdoor Unit ...

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

Page 14: ...14 7 Block Diagram ...

Page 15: ...15 ...

Page 16: ...16 8 Wiring Connection Diagram 8 1 CS C9EKZW CU 2C18EKH ...

Page 17: ...17 8 2 CS C9EKZW CU 3C20EKH ...

Page 18: ...18 9 Printed Circuit Board 9 1 Indoor Unit TOP VIEW ...

Page 19: ...19 BOTTOM VIEW ...

Page 20: ...20 9 2 Indicator TOP VIEW BOTTOM VIEW ...

Page 21: ...21 9 3 Outdoor Unit ...

Page 22: ...vent direct 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 indicated by arrows from wall ceiling fence or other obstacles Do not place any obstacles which may cause a short circuit of the discharged air If piping length is over the rated length additional refr...

Page 23: ... method is by putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side 10 3 2 TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING 1 Insert the piping sleev...

Page 24: ...24 3 For the embedded piping This can be used for left rear piping and left bottom piping also ...

Page 25: ...loroprene sheathed 4 1 5 mm2 flexible cord type designation 245 IEC 57 or heavier cord Ensure the colour of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage Secure the cable onto the control board w...

Page 26: ...ers 2 Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench CUTTING AND FLARING THE PIPING 1 Please cut using pipe 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 avo...

Page 27: ...1 Measure the pressure 2 Keep it for 5 10 minutes Ensure if the pressure indicated on the gauge is as same as that of measured at first time 2 Air Purging The air remaining in the Refrigeration cycle which contains moisture may cause malfunction on the Compressor 1 To purge the air push the pin on the Gas side 3 way valve for three seconds with a Hexagonal wrench and set it free for one minute Rep...

Page 28: ...oved polychloroprene sheathed flexible cord type designation 245 IEC 57 or heavier cord 4 x 1 5 mm2 Power supply cord cable use 3 x 1 5 mm2 flexible cord type designation 245 IEC 57 or heavier cord 3 Secure the cable onto the control board with the holder clamper 4 Confirm the SW1 Switch at AUTO position CU 3C20EKH 5 Attach the control cover back to the original position with the screw ...

Page 29: ...the room temperature reaches the setting temperature set on the remote control The remote control setting temperature which takes the reading of intake air temperature sensor can be adjusted from 16 C to 30 C During cooling operation the compressor will stop running and restart as shown in below figure 11 1 1 Cooling Operation Time Diagram ...

Page 30: ...egins Soft Dry will be switched ON for a maximum 10 minutes then Soft Dry operation will be turned OFF for a minimum 6 minutes After that the Soft Dry operation will be ON and OFF based on the setting temperature as shown in below figure However after 3 minutes of compressor off during Soft Dry OFF within 6 minutes Soft Dry restart control the indoor unit will start to operate at normal Cooling mo...

Page 31: ... at determined operation mode until it is switched off using remote control with the setting temperature as shown in below table The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as shown in below table by pressing on the temperature up or temperature down button at remote control The operation mode judging temperature and st...

Page 32: ...ure has reached the thermo off temperature However force stop by pressing the OFF ON operation button at the remote control is permitted The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit 11 4 4 Starting Current Control When the compressor outdoor fan motor and indoor fan motor are simultaneou...

Page 33: ...l setting temperature is less than 25 C Fan speed is at Low or QLo Room temperature is constant 1 C for 30 minutes Compressor is continuously running Fan speed and angle of horizontal louver vertical airflow angle will be adjusted accordingly in this control Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode The angle of horizontal louver will be c...

Page 34: ...c Fan Speed Control When set to Auto Fan Speed the fan speed is adjusted between maximum and minimum setting as shown in the table Fan speed rotates in the range of Hi and Me Deodorizing Control will be activated Speed Fan Speed rpm CS C9EKZW S Hi 1300 Hi 1210 Me 1000 H Lo 790 C Lo 730 Lo 680 S Lo 630 Q Hi 1110 Q Me 900 Q Lo 630 ...

Page 35: ...ser noise envi ronment after 70 seconds from the restart of compressor Auto Fan Speed during Soft Dry operation 1 Indoor fan will rotate alternately between off and Lo 2 At the beginning of each compressor start operation indoor fan will increase fan speed gradually for deodorizing purpose 3 When compressor at turn off condition for 6 minutes indoor fan will start fan speed at Lo to circulate the ...

Page 36: ...ation using the remote control the discharge vent is reset and stop at the closing position 11 8 Horizontal Airflow Direction Control The horizontal airflow direction louvers can be adjusted manually by hand 11 9 Powerful Operation To achieve the setting temperature quickly When Powerful operation is set the setting temperature will be automatically decreased 3 C internally against the present set...

Page 37: ... Hi Me fan speed against the present operation sound level Dew formation become severe at Quiet Lo cool therefore Quiet Lo cool is operated only 1hr 30 min 1hr QLo 30 min QLo 50 rpm After that it goes back to Lo cool However Quiet LED remains on Manual Airflow Direction RPM control during Lo cool RPM control during Hi Me cool Auto Fan Speed Quiet operation stops when Quiet button is pressed again ...

Page 38: ...er setting press CANCEL button 3 To activate the previous timer setting press SET button 4 If main power supply is switched off the Timer setting will be cancelled 11 12 Random Auto Restart Control If there is a power failure during operation the air conditioner will automatically restart after 3 to 4 minutes when the power is resumed It will start with previous operation mode and airflow directio...

Page 39: ...d 12 1 2 Select Remote Control Transmission Code There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit The indoor unit will only operate when received signal with same transmission code from remote control This could prevent signal interference when there are 2 or more indoor unit installed nearby together To change remote control transmission ...

Page 40: ...peration and display changes as Celsius or Fahrenheit Above condition will not happen when Timer is set 12 3 Test Mode Timer Table Test Mode Name Time When test point Remarks Short circuited 1 hr 1 min Real Timer 10 min 10 sec 1 min 1 sec Timer Delay Safety Control 2 min 58 sec 0 sec Forced Operation 60 sec 0 sec Timer Save Control 7 min 4 2 sec Anti Freezing 4 min 0 sec Auto Mode Judgement 20 sec...

Page 41: ... 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 and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right ...

Page 42: ...gged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression Nature of fault Symptom Electric current during operation becomes approximately 20 lower than the normal value Insufficient compressing of a compressor The discharge tube of the compressor becomes abnormally hot normally 70 to 90 C The difference between high press...

Page 43: ... Release the taps on the top and on the right side of Control Board Front Cover Fig 3 Then remove the Control Board Front Cover Fig 3 Remove the Indicator Complete Fig 3 Fig 1 Fig 2 Fig 3 High voltages are generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electr...

Page 44: ...cular piece Fig 4 Release CN DISP Fig 4 Release CN STM Fig 4 Release CN TH Fig 4 Release CN SONIC Fig 4 Release CN FB Fig 4 Release CN DATA Fig 4 Release CN FM Fig 4 Remove RY PWR connector black and brown and AC WHT connector from power PCB Pull the hooks and remove the PCBs Fig 4 ...

Page 45: ...and 1 screw at the left side of control board Fig 6 Then pull out the control board from the unit Fig 6 Remove the cross flow fan bushing from the chassis Fig 7 Loosen the fan boss screw at the cross flow fan Pull the hook at the left side of evaporator Fig 7 Then push up the evaporator and remove cross flow fan by pulling both cross flow fan and fan motor Fig 8 Fig 5 Fig 6 Fig 7 Fig 8 ...

Page 46: ...46 15 Technical Data 15 1 Thermostat Characteristics Cooling Soft Dry ...

Page 47: ...47 15 2 Operation Characteristics 15 2 1 CS C9EKZW CU 2C18EKH ...

Page 48: ...48 15 2 2 CS C9EKZW CU 3C20EKH ...

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Page 52: ...16 Exploded View and Replacement Parts List 16 1 CS C9EKZW 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 53: ...1 CWA28C2128J O 22 ELECTRONIC CONTROLLER MAIN 1 CWA73C2036 O 23 ELECTRONIC CONTROLLER POWER 1 CWA744059 O 24 SENSOR COMPLETE 1 CWA50C2122 O 25 CONTROL BOARD FRONT COVER 1 CWH131207 26 INDICATOR COMPLETE 1 CWE39C1149 27 INDICATOR HOLDER 1 CWD932609 28 INDICATOR HOLDER 1 CWD932610 29 CONTROL BOARD TOP COVER 1 CWH13C1120 30 REMOTE CONTROL COMPLETE 1 CWA75C2815 O 31 FRONT GRILLE COMPLETE 1 CWE11C3401 ...

Page 54: ...54 16 2 CU 2C18EKH 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 55: ...220U 22 CABINET TOP PLATE COMPLETE 1 CWE03C026 23 CONTROL BOARD COVER 1 CWH13244 24 CABINET FRONT PLATE 1 CWE06C110A 25 CABINET SIDE PLATE 1 CWE04069A 26 FAN GUARD 1 CWD04183 27 HANDLE 1 CWE16000E 28 SOUND PROOF MATERIAL 2 CWG30267 29 ANTI VIBRATION BUSHING 6 CWH50049 30 STRAINER 2 CWB11002 31 OPERATING INSTRUCTION 1 CWF565222 32 INSTALLATION INSTRUCTION 1 CWF612961 33 NUT COMPRESSOR 6 CWH56000J 3...

Page 56: ...56 16 3 CU 3C20EKH 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 57: ...M 2 DS441256CPNA O 21 CAPACITOR F M 1 F0GAH305A002 O 22 TERMINAL BOARD 1 CWA28K1144 23 TERMINAL BOARD 1 CWA28064J 26 TERMINAL COVER COMPRESSOR 2 CWH171011 27 CABINET TOP PLATE 1 CWE03C026 28 3 WAY VALVE LIQUID SIDE 1 CWB011194 O 29 CONTROL BOARD COVER 1 CWH13322 30 CABINET FRONT PLATE 1 CWE06C111A 31 CABINET SIDE PLATE 1 CWE04131A 32 FAN GUARD 1 CWD04183 33 HANDLE 1 CWE16037C 34 CAPILLARY TUBE 1 C...

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