Panasonic CS-C12GKF Service Manual Download | Manualshive

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10 Printed Circuit Board

10.1. Indoor Unit

TOP VIEW

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Summary of Contents for CS-C12GKF

Page 1: ...ram 13 8 1 CS C12GK CU C12GK 13 9 Electronic Circuit Diagram 14 10 Printed Circuit Board 15 10 1 Indoor Unit 15 10 2 Indicator 17 11 Installation Instruction 18 11 1 Select The Best Location 18 11 2 Indoor Unit 19 11 3 Outdoor Unit 21 12 Operation and Control 24 12 1 Cooling Operation 24 12 2 Soft Dry Operation 25 12 3 Automatic Operation 26 12 4 Operation Control 27 12 5 Indoor Fan Speed Control ...

Page 2: ...ystem 43 15 Disassembly and Assembly Instructions 45 15 1 Indoor Electronic Controllers and Control Board Removal Procedures 45 15 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures 47 16 Technical Data 49 16 1 Thermostat Characteristics 49 16 2 Operation Characteristics 50 16 3 Cooling Capacity perfomance Data 52 17 Exploded View and Replacement Parts List 54 17 1 Indoor Unit 54 17 2 Outdoo...

Page 3: ...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 it will cause electrical shock or fire 6 Use the specified cable and connect tightly for indoor outdoor connection Connect tightly and clamp the cable so that no external forc...

Page 4: ...er supply cord of the air conditioner to the mains using one of the following methods Power supply point shall be the place where there is ease for 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 ...

Page 5: ...SUNISO 4GDID 350cm3 Refrigerant Charged R22 kg oz 0 87 30 7 Dimension Height mm inch 280 11 1 32 540 21 1 4 Width mm inch 799 31 15 32 780 30 23 32 Depth mm inch 183 7 7 32 289 11 3 8 Net Weight kg lbs 9 20 38 84 Pipe Diameter Gas mm inch 12 70 1 2 Liquid mm inch 6 35 1 4 Height Difference m ft 5 16 4 Pipe Length Range m ft 3 9 8 15 49 2 Additional Gas Amount g m oz ft 10 0 1 Refrigeration Charge ...

Page 6: ...ngle Single V 220 240 Hz 50 50 Input power kW 1 13 1 16 Starting Current A 29 5 29 5 Running Current Cooling A 5 3 5 1 Power Factor Cooling A 97 95 Power factor means total figure of compressor indoor fan motor and outdoor fan motor Power Cord Number of core 3 1 5mm Length m ft 2 6 Thermostat Protection Device 2 Stage Overload Protector ...

Page 7: ...ure dust particles and bring it back with a boomerang like mechanism 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 Condenser for high resistance to corrosion Operation Improvement Quiet mode to provide quiet ...

Page 8: ...8 4 Location of Controls and Components 4 1 Product Overview 4 1 1 Indoor Unit 4 1 2 Outdoor Unit 4 1 3 Remote Control ...

Page 9: ...9 5 Dimensions 5 1 Indoor Unit Remote Control 5 1 1 CS C12GK ...

Page 10: ...10 5 2 Outdoor Unit 5 2 1 CU C12GK ...

Page 11: ...11 6 Refrigeration Cycle Diagram ...

Page 12: ...12 7 Block Diagram ...

Page 13: ...r Fan Motor Windings Note Resistance at 25 C of ambient temperature Resistance of Compressor Windings Note Resistance at 20 C of ambient temperature MODEL CU C12GK CONNECTION CWA921324 BLUE YELLOW 371 0 Ω YELLOW RED 385 6 Ω MODEL CU C12GK CONNECTION CWA951120J BLUE YELLOW 200 4 Ω YELLOW RED 252 5 Ω MODEL CU C12GK CONNECTION 2KS210D5BA02 C R 1 930 Ω C S 2 449 Ω ...

Page 14: ...14 9 Electronic Circuit Diagram ...

Page 15: ...15 10 Printed Circuit Board 10 1 Indoor Unit TOP VIEW ...

Page 16: ...16 BOTTOM VIEW ...

Page 17: ...17 10 2 Indicator TOP VIEW BOTTOM VIEW ...

Page 18: ...the unit to prevent 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 ...

Page 19: ...ther method is by putting measur ing 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 11 2 2 To Drill A Hole In The Wall And Install A Sleeve Of Piping 1 Insert the piping ...

Page 20: ...e embedded piping Pull out the piping and drain hose How to keep the cover Insert the connecting cable Install the Indoor unit Secure the Indoor Unit This can be used for left rear piping left bottom piping also ...

Page 21: ... of the slipping out of the cord from the anchorage Secure the cable onto the control board with the holder clamper 11 3 Outdoor Unit 11 3 1 Install The Outdoor Unit After selecting the best location start installation according to Indoor Outdoor Unit Installation Diagram 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut ø10 mm 2 When installing at roof please consider ...

Page 22: ...rn the piping end down to avoid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes 11 3 3 Air Purging Of The Pipings And Indoor Unit The remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor 1 Remove the caps from the 2 way and 3 way valves 2 Remove the service port cap from the 3 way valves ...

Page 23: ...ver back to the original position with the screw 11 3 5 Pipe Insulation 1 Please carry out insulation at pipe connection portion as mentioned in Indoor Outdoor Unit Installation Diagram Please wrap the insulated piping end to prevent water from going inside the piping 2 If drain hose or connecting piping is in the room where dew may form please increase the insulation by using POLY E FOAM with thi...

Page 24: ...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 12 1 1 Cooling Operation Time Diagram ...

Page 25: ...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 26: ... 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 27: ...d the intake air temperature falls between the compressor ON temperature A and compressor OFF temperature B during the period This phenomenon is to reduce the built up humidity inside a room 12 4 3 60 Seconds Forced Operation Once the air conditioner is turned on the compressor will not stop within 60 seconds in a normal operation although the intake air temperature has reached the thermo off temp...

Page 28: ...re Compressor will turn off when indoor temperature falls below 2 C for more than 4 minutes It will restart again when indoor heat exchanger temperature rises to 10 C Restart control Time Delay Safety Control will be applied in this control 12 4 6 Compressor Reverse Rotation Protection Control If the compressor is operating continuously for 5 minutes or longer and the temperature difference betwee...

Page 29: ...ol 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 changed as below figure Note A Normal operation angle of rotation B Dew prevention angle of rotation Horizontal Louver Angle During Anti Dew condensation prevention the horizontal louver angle in Auto control are as below figure During Anti Dew condensation...

Page 30: ...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 C12GKF S Hi 1320 Hi 1270 Me 1060 H Lo 960 C Lo 900 Lo 850 S Lo 820 Q Hi 1170 Q Me 960 Q Lo 800 ...

Page 31: ...ser noise environment 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 a...

Page 32: ...hen stop operation using the remote control the discharge vent is reset and stop at the closing position 12 8 Horizontal Airflow Direction Control The horizontal airflow direction louvers can be adjusted manually by hand 12 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 th...

Page 33: ...or 3 dB A for 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 p...

Page 34: ...FF Timer setting will not be cancelled 2 To cancel the previous timer 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 12 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 resu...

Page 35: ...During cooling only operation Patrol button is pressed b Patrol operation stop condition When any of the following condition is fulfilled When OFF ON button is pressed During any operation with Patrol Patrol button is pressed again When e ion button is pressed When OFF Timer activates c Patrol operation disable To disable the Patrol Operation during unit start default with OFF ON button press Patr...

Page 36: ...evel 2 Contaminated Dirtiness level sensitivity adjustment It is possible to change the gas sensor sensitivity where the Threshold value G1 G4 will be shifted accordingly a Press and release SET button b Press Timer increment Timer decrement button to select sensitivity Low Standard Default High c Confirm setting by pressing Timer Set button LCD returned to original display after 2 seconds d LCD r...

Page 37: ...tioner and no change on LCD display During Patrol individual operation if e ion stops Airflow direction louver closed e Indicator When Patrol operation starts Patrol Sensor indicator ON When e ion operation starts based on dirtiness level e ion indicator ON f Remote Control Receiving Sound g Timer Control When ON timer activates when unit stops previous operation resumes without Patrol operation W...

Page 38: ...starts During unit is OFF if e ion button is pressed e ion individual operation starts b e ion operation stop condition When OFF ON button is pressed to stop the operation When e ion button is pressed again When Patrol button is pressed When OFF Timer activates c e ion operation pause condition When indoor fan stop during deice odor cut control thermostat off etc e ion operation resume after indoo...

Page 39: ...isplay c Timer control When ON timer activates when unit stops previous operation resumes without e ion operation When ON timer activates during any operation no change and carry on current operation When OFF timer activates during any operation all operation stops d Indicator When e ion operation starts e ion indicator ON e e ion Check Mode To check if e ion is malfunctioning during e ion operati...

Page 40: ... and check the e ion AIR PURIFYING SYSTEM main connector to PCB After that press e ion button again to confirm the e ion indicator not blinking The 24 times counter will be clear after 10 minutes of normal operation or when operation stops Error Reset Method Press OFF ON button to OFF the operation Press AUTO OFF ON button at indoor unit to OFF the operation OFF Timer activates Press e ion button ...

Page 41: ...occur at to identify the starting of Remote Control Receiving Sound Off On Mode Press Auto OFF ON button to toggle remote control receiving sound Short beep Turn ON remote control receiving sound Long beep Turn OFF remote control receiving sound After Auto OFF ON Button is pressed the 20 seconds counter for Remote Control Receiving Sound OFF ON Mode is restarted 13 2 Select Remote Control Transmis...

Page 42: ...und will be heard LCD returns to original display after 2 seconds LCD returns to original display if remote control does not operate for 30 seconds 13 3 2 CLOCK BUTTON To change the remote control s time format Press for more than 5 seconds 13 3 3 RESET RC To clear and restore the remote control setting to factory default Press once to clear the memory 13 3 4 TIMER To change indoor unit indicator ...

Page 43: ... 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 to the right ...

Page 44: ...logged 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 pre...

Page 45: ...s WARNING Cautions When handling electronic controller be careful of electrostatic discharge Be sure to return the wiring to its original position There are many high voltage components within the heat sink cover so never touch the interior during operation Wait at least two minutes after power has been turned off ...

Page 46: ...46 ...

Page 47: ...47 15 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures ...

Page 48: ...48 ...

Page 49: ...49 16 Technical Data 16 1 Thermostat Characteristics Cooling Soft Dry ...

Page 50: ...50 16 2 Operation Characteristics 16 2 1 CS C12GK CU C12GK ...

Page 51: ...51 ...

Page 52: ... 9963 1 1120 32 19 3 7469 3 8100 1 0246 3 6157 3 7130 1 1120 3 4110 3 5028 1 1897 22 4 0617 3 4220 1 1460 3 9253 3 3843 1 2431 3 7154 3 2819 1 3305 Indoor Air Temperature entering Condenser C D B Model Power Ambient 40 C 43 C 52 C Source Temp TC SHC IPT TC SHC IPT TC SHC IPT D B W B KW KW KW KW KW KW KW KW KW 17 2 9702 2 1933 1 2528 2 7918 2 1232 1 3257 2 4759 1 7584 1 5726 23 19 3 2116 1 8807 1 3...

Page 53: ...53 ...

Page 54: ...7 Exploded View and Replacement Parts List 17 1 Indoor Unit 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: ... DRAIN TRAY 1 CWH521096 18 HORIZONTAL VANE COMPLETE 1 CWE24C1183 19 BACK COVER CHASSIS 1 CWD932454 20 CONTROL BOARD CASING 1 CWH102321 21 TERMINAL BOARD COMPLETE 1 CWA28C2152 22 P S CORD W OUT PLUG 1 CWA20C2552 23 ELECTRONIC CONTROLLER MAIN 1 CWA73C2567 24 ELECTRONIC CONTROLLER POWER 1 CWA744780 25 SENSOR COMPLETE 1 CWA50C2122 26 CONTROL BOARD FRONT COVER 1 CWH131207 27 INDICATOR COMPLETE 1 CWE39C...

Page 56: ...56 17 2 Outdoor Unit 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: ...4 STRAINER 1 CWB111011 15 HOLDER COUPLING 1 CWH351023 16 2 WAY VALVE LIQUID 1 CWB021362 17 3 WAY VALVE GAS 1 CWB011482 18 OVERLOAD PROTECTOR 1 CWA121202J 19 HOLDER O L P 1 CWH7041200 20 TERMINAL COVER 1 CWH171011 21 NUT TERMINAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151023 23 TERMINAL BOARD ASS Y 1 CWA28K1064J 24 CAPACITOR COM 30μF 370V 30μF 400V 1 DS371356CPNC 25 HOLDER CAPACITOR 1 CWH300...

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