Panasonic CS-YS12MKV-7 Service Manual Download Page 99

Page: 99 / 108

REF. NO.

PART NAME & DESCRIPTION

QTY

CS-YS9MKV-7

CS-YS12MKV-7

REMARK

1 CHASSY

COMPLETE

1 CWD50C1653

←

2 FAN

MOTOR

1 CWA921443

←

CROSS-FLOW FAN COMPLETE

CWH02C1076

←

4 BEARING

ASSY

1 CWH64K007

←

SCREW - CROSS-FLOW FAN

CWH551146

←

6 EVAPORATOR

1 CWB30C2961 CWB30C3362

FLARE NUT (LIQUID)

CWT251030

←

FLARE NUT (GAS)

CWT251031

CWT251032

CLIP FOR SENSOR

CWH32143

←

10 BACK

COVER

CHASSIS

1 CWD933233

←

CONTROL BOARD CASING

CWH102370

←

TERMINAL BOARD COMPLETE

CWA28C2435

CWA28C2437

ELECTRONIC CONTROLLER - MAIN

CWA73C5651

CWA73C5652

ELECTRONIC CONTROLLER - POWER

CWA745289

←

15 ELECTRONIC

CONTROLLER-INDICATOR

1 CWA745300

←

16 INDICATOR

HOLDER

1 CWD933021

←

17 SENSOR

COMPLETE

1 CWA50C2122 CWA50C2401

DISCHARGE GRILLE COMPLETE

CWE20C3137

←

19 VERTICAL

VANE

11 CWE241350

←

20 CONNECTING

BAR

1 CWE261152

←

22 CONNECTING

BAR

1 CWE261153

←

24 CONNECTING

BAR

1 CWE261154

←

26 CONNECTING

BAR

1 CWE261155

←

AIR SWING MOTOR

CWA981264

←

HORIZONTAL VANE COMPLETE

CWE24C1268

←

CAP - DRAIN TRAY

CWH521096

←

CONTROL BOARD TOP COVER

CWH131350

←

CONTROL BOARD FRONT COVER CO.

CWH13C1183

←

32 REMOTE

CONTROL

COMPLETE

1 CWA75C3716

←

FRONT GRILLE COMPLETE

CWE11C4516

←

INTAKE GRILLE COMPLETE

CWE22C1507

←

35 GRILLE

DOOR

1 CWE14C1029

←

37 AIR

FILTER

2 CWD001279

←

SCREW - FRONT GRILLE

XTT4+16CFJ

←

CAP - FRONT GRILLE

CWH521194

←

41 DRAIN

HOSE

1 CWH851174

←

BAG COMPLETE - INSTALLATION SCREW

CWH82C1705

←

43 INSTALLATION

PLATE

1 CWH361097

←

44 FULCRUM

1 CWH621102

←

45 OPERATING

INSTRUCTION

1 CWF567871

←

46 INSTALLATION

INSTRUCTION

1 CWF614616

←

47 INSTALLATION

INSTRUCTION

1 CWF614617

←

SUPER ALLERU BUSTER FILTER

CWD00C1132

←

POWER SUPPLY CORD-COMPLETE

CWA20C2851

←

(Note)



All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).



“O” marked parts are recommended to be kept in stock.

Summary of Contents for CS-YS12MKV-7

Page 1: ...for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the products dealt with in this service information by anyone else could result in serious injur...

Page 2: ...mer Control 50 11 6 Random Auto Restart Control 51 11 7 Indication Panel 51 12 Protection Control 52 12 1 Restart Control Time Delay Safety Control 52 12 2 30 Seconds Forced Operation 52 12 3 Total Running Current Control 52 12 4 IPM Power Transistor Prevention Control 52 12 5 Low Pressure Prevention Control Gas Leakage Detection 53 12 6 Compressor Tank Temperature Rise Protection Control 53 12 7 ...

Page 3: ...al Current Device RCD Otherwise it may cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint cable for indoor outdoor connection cable Use the specified indoor outdoor connection cable refer to installation instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor outdoor connection Clamp the cable so that no external force wi...

Page 4: ...t is 50 F 70 F 30 C 40 C higher Please use a high temperature solder iron In case of the soldering iron with temperature control please set it to 700 20 F 370 10 C Pb free solder will tend to splash when heated too high about 1100 F 600 C 7 Power supply connection to the air conditioner Connect the power supply cord of the air conditioner to the mains using one of the following methods Power suppl...

Page 5: ...wer W 650 Type Cross flow fan Material ASG20K1 Motor Type Induction 4 poles Input Power W 54 9 Output Power W 16 Lo rpm 710 Me rpm 850 Indoor Fan Speed Hi rpm 1000 Type Propeller Material PP Motor Type Induction 6 poles Input Power W Output Power W 20 Outdoor Fan Speed Hi rpm 790 Moisture Removal L h Pt h 1 6 3 4 Lo m 3 min ft 3 m 6 9 244 Me m 3 min ft 3 m 8 5 300 Indoor Airflow Hi m 3 min ft 3 m ...

Page 6: ...mm 610 x 315 x 25 4 Fin Material Aluminium Blue coated Fin Type Slit Fin Row x Stage x FPI 2x 23 x 17 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 483 x 553 4 557 4 Material Polypropelene Air Filter Type One touch Power Supply Indoor Power Supply Cord A 10 Thermostat Protection Device DRY BULB WET BULB Maximum 32 23 Indoor Operation Range Minimum 16 11 Maximum 43 26 Outdoor Operation Range Mini...

Page 7: ...ow fan Cross flow fan Material ASG20K1 ASG30K1 Motor Type Induction 4 poles Transistor 8 poles Input Power W 54 9 69 5 Output Power W 16 40 Lo rpm 790 840 Me rpm 930 1050 Indoor Fan Speed Hi rpm 1070 1260 Type Propeller Propeller Material PP PP Motor Type Induction 6 poles Induction 6 poles Input Power W Output Power W 28 40 Outdoor Fan Speed Hi rpm 790 840 Moisture Removal L h Pt h 2 0 4 2 2 9 6 ...

Page 8: ... x 315 x 25 4 Fin Material Aluminium Blue coated Aluminium Blue coated Fin Type Louver Fin Slit Fin Row x Stage x FPI 1 x 20 x 19 2 x 24 x 17 Outdoor Heat Exchanger Size W x H x L mm 22 0 x 508 0 x 708 4 25 4 x 504 0 x 693 4 713 4 Material Polypropelene Polypropelene Air Filter Type One touch One touch Power Supply Indoor Indoor Power Supply Cord A 10 15 Thermostat Protection Device DRY BULB WET B...

Page 9: ...e Cross flow fan Material ASG30K1 Motor Type Transistor 8 poles Input Power W 69 5 Output Power W 40 Lo rpm 1050 Me rpm 1220 Indoor Fan Speed Hi rpm 1400 Type Propeller Material PP Motor Type Induction 6 poles Input Power W Output Power W 66 Outdoor Fan Speed Hi rpm 760 Moisture Removal L h Pt h 3 6 7 6 Lo m 3 min ft 3 m 13 0 459 Me m 3 min ft 3 m 15 7 554 Indoor Airflow Hi m 3 min ft 3 m 18 5 650...

Page 10: ...m 810 x 315 x 25 4 Fin Material Aluminium Blue coated Fin Type Slit fin Row x Stage x FPI 2 x 34 x 17 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 714 0 x 826 2 846 2 Material Polypropelene Air Filter Type One touch Power Supply Indoor Power Supply Cord A 20 Thermostat Protection Device DRY BULB WET BULB Maximum 32 23 Indoor Operation Range Minimum 16 11 Maximum 43 26 Outdoor Operation Range Mi...

Page 11: ...11 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control ...

Page 12: ...12 4 Dimensions 4 1 Indoor Unit 4 1 1 CS YS9MKV 7 CS YS12MKV 7 ...

Page 13: ...13 4 1 2 CS YS18MKV 7 CS YS22MKV 7 ...

Page 14: ...14 4 2 Outdoor Unit 4 2 1 CU YS9MKV 7 4 2 2 CU YS12MKV 7 CU YS18MKV 7 ...

Page 15: ...15 4 2 3 CU YS22MKV 7 ...

Page 16: ...16 5 Refrigeration Cycle Diagram 5 1 CS YS9MKV 7 CU YS9MKV 7 CS YS12MKV 7 CU YS12MKV 7 ...

Page 17: ...17 5 2 CS YS18MKV 7 CU YS18MKV 7 CS YS22MKV 7 CU YS22MKV 7 ...

Page 18: ...18 6 Block Diagram 6 1 CS YS9MKV 7 CU YS9MKV 7 ...

Page 19: ...19 6 2 CS YS12MKV 7 CU YS12MKV 7 ...

Page 20: ...20 6 3 CS YS18MKV 7 CU YS18MKV 7 ...

Page 21: ...21 6 4 CS YS22MKV 7 CU YS22MKV 7 ...

Page 22: ...22 7 Wiring Connection Diagram 7 1 Indoor Unit 7 1 1 CS YS9MKV 7 CS YS12MKV 7 ...

Page 23: ...23 7 1 2 CS YS18MKV 7 CS YS22MKV 7 ...

Page 24: ...24 7 2 Outdoor Unit 7 2 1 CU YS9MKV 7 Resistance of Compressor Windings MODEL CUYS9MKV 7 CONNECTION 5RS092XCE21 U V 1 152 U W 1 152 V W 1 152 ...

Page 25: ...25 7 2 2 CU YS12MKV 7 Resistance of Compressor Windings MODEL CU YS12MKV 7 CONNECTION 5RS092XCD21 U V 1 152Ω U W 1 152Ω V W 1 152Ω ...

Page 26: ...26 7 2 3 CU YS18MKV 7 Resistance of Compressor Windings MODEL CU YS18MKV 7 CONNECTION 5CS130XAD04 U V 0 902Ω U W 0 903Ω V W 0 900Ω ...

Page 27: ...27 7 2 4 CU YS22MKV 7 Resistance of Compressor Windings MODEL CU YS22MKV 7 CONNECTION 5CS130XAD04 U V 0 902Ω U W 0 903Ω V W 0 900Ω ...

Page 28: ...28 8 Electronic Circuit Diagram 8 1 Indoor Unit 8 1 1 CS YS9MKV 7 CS YS12MKV 7 ...

Page 29: ...29 8 1 2 CS YS18MKV 7 CS YS22MKV 7 ...

Page 30: ...30 8 2 Outdoor Unit 8 2 1 CU YS9MKV 7 ...

Page 31: ...31 8 2 2 CU YS12MKV 7 ...

Page 32: ...32 8 2 3 CU YS18MKV 7 ...

Page 33: ...33 8 2 4 CU YS22MKV 7 ...

Page 34: ...34 9 Printed Circuit Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board ...

Page 35: ...35 9 1 2 Power Printed Circuit Board 9 1 2 1 CS YS9 12MKV 7 AC303 RY PWR CN PCFM AC301 AC304 CN DATA1 9 1 2 2 CS YS18 22MKV 7 ...

Page 36: ...36 9 1 3 Indicator Printed Circuit Board ...

Page 37: ...37 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board 9 2 1 1 CU YS9MKV 7 ...

Page 38: ...38 9 2 1 2 CU YS12MKV 7 ...

Page 39: ...39 9 2 1 3 CU YS18 22MKV 7 ...

Page 40: ...ed installation height for indoor unit shall be at least 2 5 m 10 1 2 Outdoor Unit If an awning is built over 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 ...

Page 41: ...igning the marking off line with the thread and using a level gauge 2 Drill the piping plate hole with ø70 mm hole core drill o Line according to the left and right side of the installation plate The meeting point of the extended line is the center of the hole Another method is by putting measuring tape at position as shown in the diagram above The hole center is obtained by measuring the distance...

Page 42: ...42 10 2 3 Indoor Unit Installation 10 2 3 1 For the right rear piping 10 2 3 2 For the right and right bottom piping 10 2 3 3 For the embedded piping ...

Page 43: ...43 This can be used for left rear piping and bottom piping also ...

Page 44: ...tdoor unit shall be approved polychloroprene sheathed 4 x 1 5 mm2 746 1119W 1 0 1 5HP or 4 x 2 5 mm2 1492 1865W 2 0 2 5HP flexible cord type designation 245 IEC 57 or heavier cord Note Ensure the colour of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth wire shall be Yellow Green Y G in colour and longer than other AC wires for safety reason ...

Page 45: ...1 Connecting the piping to indoor Please make flare after inserting flare nut locate at joint portion of tube assembly onto the copper pipe In case of using long piping Connect the piping Align the center of piping and sufficiently tighten Further tighten the flare nut with torque wrench in specified torque as stated in the table 10 3 2 2 Connecting the piping to outdoor Decide piping length and t...

Page 46: ...y ten minutes 4 Close the Low side valve of the charging set and turn off the vacuum pump Make sure that the needle in the gauge does not move after approximately five minutes Note BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE 5 Disconnect the charging hose from the vacuum pump and from the service port of the 3 way valve 6 Tighten the service port caps of the 3 way valv...

Page 47: ... shall be Yellow Green Y G in colour and longer than other AC wires for safety reason 10 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 ins...

Page 48: ...1 2 Cooling Operation 11 1 2 1 Thermostat control Compressor is OFF when intake Air Temperature Internal Setting Temperature 0 5 C Compressor is ON after waiting for 3 minutes if the Intake Temperature Internal Setting Temperature Compressor OFF point 11 1 3 Soft Dry Operation 11 1 3 1 Thermostat control Compressor is OFF when Intake Temperature Internal Setting Temperature 1 0 C Compressor is ON ...

Page 49: ...iately after the fan motor is started feedback control is performed once every second o During fan motor on if fan motor feedback 2550 rpm or 50 rpm continuously for 10 seconds the fan motor error counter increased fan motor is then stopped and restarted If the fan motor error counter increased to 7 then H19 fan motor error is detected Operation stopped and could not be restarted 11 3 Outdoor Fan ...

Page 50: ...ntrol the angles of the vane are as stated above and the positions of the vane are as figure below When the air conditioner is stopped using remote control the vane will shift to close position 11 4 2 Horizontal Airflow The horizontal airflow direction louvers can be adjusted manually by hand 11 5 Timer Control 11 5 1 ON Timer Control ON timer can be set using remote control where the unit with ti...

Page 51: ... the power supply is cut off during the operation of air conditioner the compressor will re operate within three to four minutes There are 10 patterns to be selected randomly after power supply resumes This control is not applicable during OFF ON Timer setting This control can be omitted by open the circuit of JP1 at indoor unit printed circuit board 11 7 Indication Panel LED POWER TIMER Color Gre...

Page 52: ...ecreased If the running current does not exceed X value for 5 seconds the frequency instructed will be increased However if total outdoor unit running current exceeds Y value compressor will be stopped immediately for 3 minutes Model YS9 YS12 YS18 YS22 Operation Mode X A Y A X A Y A X A Y A X A Y A Cooling Soft Dry A 5 5 15 0 6 8 15 0 10 4 14 8 11 1 19 0 Cooling Soft Dry B 5 0 15 0 6 3 15 0 9 3 14...

Page 53: ...is 30 5 C Remote Control setting 16 C and Hi Fan Speed Control contents o Compressor stops and restart after 3 minutes o If the conditions above happened 2 times within 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 12 7 Low Frequency Protection Control 1 When the compressor operates at frequency lower than 24Hz continued for 20 minutes the operation frequency will be c...

Page 54: ...C or Compressor stops for freeze prevention control o Either one of the conditions above occurs 5 times in 60 minutes Control contents o Operation stops o Timer LED blinks and H99 indicated 12 13 Dew Prevention Control To prevent dew formation at indoor unit discharge area This control will be activated if o Cooling mode or Quiet mode is activated o Remote control setting temperature is less than ...

Page 55: ...ld be selected 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 units installed nearby together To change remote control transmission code short or open jumpers at the remote control printed circuit board Remote Control Printed Circuit Board Jumper A J A Jumper B J B Remote Control...

Page 56: ...ton unit a beep sound is heard as confirmation of transmission code change 13 2 2 RESET RC Button To clear and restore the remote control setting to factory default o Press once to clear the memory 13 2 3 TIMER To change indoor unit indicators intensity o Press continuously for 5 seconds 13 2 4 TIMER To change remote control display from Degree Celsius C to Degree Fahrenheit F o Press continuously...

Page 57: ... Mpa kg cm 2 G Outlet air Temperature C Cooling Mode 0 9 1 2 9 12 12 16 Condition Indoor fan speed High Outdoor temperature 35 C at cooling mode Compressor operate at rated frequency Different in the intake and outlet air temperatures Normal Value of electric current during operation Dusty condenser preventing heat radiation Excessive amount of refrigerant Gas side pressure Inefficient compressor ...

Page 58: ...ow Pressure High Pressure Electric current during operation Insufficient refrigerant gas leakage Clogged capillary tube or strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression Carry out the measurement of pressure electric current and temperature fifteen minutes after an operation is started ...

Page 59: ...4 2 3 To Display Memorized Error Code Protective Operation 1 Turn power on 2 Press the CHECK button on the remote control 3 will be displayed on the remote control display Note Display only for No signal transmission no receiving sound and no Power LED blinking 4 Press the TIMER or button on the remote control The code H00 no abnormality will be displayed and signal will be transmit to the main un...

Page 60: ...ntion protection Insufficient refrigerant Air filter dirty F11 4 way valve switching failure 4 occurrences within 30 minutes 4 way valve v coil F90 System and compressor microcomputer communication error for S10 only 2 occurrences within 5 seconds Compressor Outdoor PCB F90 Power factor correction abnormality 4 occurrences within 20 minutes Outdoor PCB F91 Refrigerant cycle abnormal 2 occurrences ...

Page 61: ...l transmission 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 unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units Indoor unit outdoor unit signal transmission error due to disturbed power supply...

Page 62: ...are 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 due to wrong wiring Indoor outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor and outdoor units Troubleshooting ...

Page 63: ...ction 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 Caused Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 64: ...n 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 Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 65: ...ions A current transformer CT is detected by checking the compressor running frequency rated frequency and CT detected input current less than 1 14A for continuously 20 seconds Malfunction Caused CT defective Outdoor PCB defective Compressor defective low compression Troubleshooting ...

Page 66: ...etermine 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 fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty indoor unit PCB Troubleshooting ...

Page 67: ... 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 Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 68: ...ction 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 Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 69: ...ction 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 Faulty connector connection Faulty sensor Faulty PCB Troubleshooting ...

Page 70: ...alfunction 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 used Indoor unit or outdoor unit PCB defective Troubleshooting ...

Page 71: ...During heating operation the temperature detected by the indoor pipe temperature sensor is above 60 C Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat exchanger Air short circuit Detection error due to faulty indoor pipe temperature sensor Detection error due to faulty indoor unit PCB Troubleshooting ...

Page 72: ...on control takes place when indoor pipe temperature is lower than 2 C Malfunction Caused Clogged air filter of the indoor unit Dust accumulation on the indoor unit heat exchanger Air short circuit Detection error due to faulty indoor pipe temperature sensor Detection error due to faulty indoor unit PCB Troubleshooting ...

Page 73: ...function Decision Conditions When cooling operation when indoor pipe temperature or indoor heat exchanger temperature sensor is above 45 C Malfunction Caused Faulty connector connection Faulty indoor pipe temperature sensor Faulty indoor main PCB Troubleshooting ...

Page 74: ...peration 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 supply surge DC voltage peak due to compressor windings not uniform Faulty outdoor PCB Troubleshooting ...

Page 75: ... cooling and heating operation running current 0 65A I 1 65A During cooling indoor intake indoor pipe 4 C Malfunction Caused Refrigerant shortage refrigerant leakage Poor compression performance of compressor 2 3 way valve closed Detection error due to faulty indoor intake air or indoor pipe temperature sensors Troubleshooting ...

Page 76: ...alfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disconnect Outdoor PCB malfunction Troubleshooting ...

Page 77: ...s 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 outdoor fan motor Outdoor pipe temperature rise due to defective outdoor pipe temperature sensor Outdoor pipe temperature rise due to defective outdoor unit PCB Troubleshooting ...

Page 78: ...ature data 100 C is detected by the IPM temperature sensor Malfunction Caused IPM overheats due to short circuit of hot discharge air flow IPM overheats due to defective of outdoor fan motor IPM overheats due to defective of internal circuitry of IPM IPM overheats due to defective IPM temperature sensor Troubleshooting ...

Page 79: ...on 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 closed Detection error due to faulty compressor tank temperature sensor Troubleshooting ...

Page 80: ...rrent Control is 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 defective outdoor unit PCB Over current due to defective inverter main circuit electrolytic capacitor Over current due to excessive refrigerant Troubleshooting ...

Page 81: ...door unit PCB Troubleshooting Checking the power transistor Never touch any live parts for at least 10 minutes after turning off the circuit breaker If unavoidable necessary to touch a live part make sure the power transistor s supply voltage is below 50V using the tester For the UVW make measurement at the Faston terminal on the board of the relay connector Tester s negative terminal Power transi...

Page 82: ...ks 15 1 CS YS9MKV 7 CS YS12MKV 7 15 1 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 15 1 1 1 To remove front grille Figure 1 15 1 2 To remove power electronic controller Figure 2 1 Lift to open the horizontal vane gently 3 Hold both sides of the front grille and remove it by pulling up and toward yourself gently 2 Remove 2 caps and 2 screws at the bottom of...

Page 83: ...tach the Earth wire screw 7 Remove screw to remove terminal board complete 7 Pull out the main electronic controller and power electronic controller halfway 10 Detach the AC303 RY PWR and CN PCFM connectors from the electronic controller Then pull out power electronic controller gently RY PWR connector Black and brown CN PCFM AC303 White 11 Pull out to remove the drain hose from the discharge gril...

Page 84: ...n and indoor fan motor Figure 8 Figure 9 13 Remove 4 screws holding the control board then pull out the control board 16 Remove the bearing by pulling it out gently 15 Remove the screw from the evaporator 14 Remove the screw that holding the cross flow fan and fan motor axis ...

Page 85: ...moval of cross flow fan Reminder To reinstall the fan motor adjust the fan motor connector to 45 towards you before fixing control board 18 Remove the cross flow fan from the unit by pulling it to the left and downward Evaporator Reminder To reinstall the cross flow fan ensure cross flow fan is in line as shown in figure 11 ...

Page 86: ...arged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 15 2 CS YS18MKV 7 CS YS22MKV 7 15 2 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 15 2 1 1 To remove front grille Figure 12 15 2 2 To remove horizontal vane Figure 13 ...

Page 87: ...87 15 2 3 To remove power electronic controller Figure 14 Figure 15 Figure 16 ...

Page 88: ...88 15 2 4 To remove discharge grille Figure 17 15 2 5 To remove control board Figure 18 15 2 6 To remove cross flow fan and indoor fan motor Figure 19 ...

Page 89: ...89 Figure 20 Figure 21 Figure 22 ...

Page 90: ...l Data 16 1 Operation Characteristics 16 1 1 CS YS9MKV 7 CU YS9MKV 7 Cooling Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Piping length 7 5m o Compressor Frequency Fc ...

Page 91: ...91 Piping Length Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Outdoor temperature 35 C DBT 24 C WBT ...

Page 92: ...92 16 1 2 CS YS12MKV 7 CU YS12MKV 7 Cooling Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Piping length 7 5m o Compressor Frequency Fc ...

Page 93: ...93 Piping Length Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Outdoor temperature 35 C DBT 24 C WBT o Compressor Frequency Fc ...

Page 94: ...94 16 1 3 CS YS18MKV 7 CU YS18MKV 7 Cooling Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Piping length 5m o Compressor Frequency Fc ...

Page 95: ...95 Piping Length Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Outdoor temperature 35 C DBT 24 C WBT o Compressor Frequency Fc ...

Page 96: ...96 16 1 4 CS YS22MKV 7 CU YS22MKV 7 Cooling Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Piping length 5m o Compressor Frequency Fc ...

Page 97: ...97 Piping Length Characteristic o Room temperature 26 7 C DBT 19 4 C WBT o Operation condition High fan speed o Outdoor temperature 35 C DBT 24 C WBT o Compressor Frequency Fc ...

Page 98: ...and Replacement Parts List 17 1 Indoor Unit 17 1 1 CS YS9MKV 7 CS YS12MKV 7 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 99: ...TING BAR 1 CWE261152 22 CONNECTING BAR 1 CWE261153 24 CONNECTING BAR 1 CWE261154 26 CONNECTING BAR 1 CWE261155 27 AIR SWING MOTOR 1 CWA981264 O 28 HORIZONTAL VANE COMPLETE 1 CWE24C1268 29 CAP DRAIN TRAY 1 CWH521096 30 CONTROL BOARD TOP COVER 1 CWH131350 31 CONTROL BOARD FRONT COVER CO 1 CWH13C1183 32 REMOTE CONTROL COMPLETE 1 CWA75C3716 O 33 FRONT GRILLE COMPLETE 1 CWE11C4516 O 34 INTAKE GRILLE CO...

Page 100: ...100 17 1 2 CS YS18MKV 7 CS YS22MKV 7 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 101: ...CONNECTING BAR 1 CWE261233 24 CONNECTING BAR 1 CWE261232 25 CONNECTING BAR 1 CWE261230 26 CONNECTING BAR 1 CWE261231 27 A S MOTOR DC SINGLE 12V 300OHM 1 CWA981241 O 28 HORIZONTAL VANE 1 CWE24C1295 29 CAP DRAIN TRAY 1 CWH521096 30 CONTROL BOARD TOP COVER 1 CWH131350 31 CONTROL BOARD FRONT COVER 1 CWH13C1183 32 REMOTE CONTROL CO WIRELESS 1 CWA75C3716 O 33 FRONT GRILLE COMPLETE 1 CWE11C4515 O 34 INTA...

Page 102: ...102 17 2 Outdoor Unit 17 2 1 CU YS9MKV 7 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service part ...

Page 103: ...021421 O 18 3 WAY VALVE GAS 1 CWB011366 O 19 SOUND PROOF BOARD 1 CWH151185 20 TERMINAL COVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SENSOR CO COMP TEMP 1 CWA50C2205 O 24 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWA50C2502 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C5422R O 27 ELECTRONIC CONTROLLER NF 1 CWH14C6052 O 28 CONTROL BOARD COVER TOP 1 CWH131324 29...

Page 104: ...104 17 2 2 CU YS12MKV 7 CU YS18MKV 7 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 105: ...LVE GAS 1 CWB011367 O 19 SOUND PROOF BOARD 1 CWH151172 20 TERMINAL COVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SENSOR CO COMP TEMP 1 CWA50C2205 O 24 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWA50C2559 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C5656R O 28 CONTROL BOARD COVER TOP 1 CWH131264 29 CABINET SIDE PLATE CO 1 CWE04C1159 30 CABINET SIDE PLATE 1 CWE...

Page 106: ...1 CWH7080300J 22 SENSOR CO OUTDOOR COMP TEMP 1 CWA50C2205 O 23 HOLDER SENSOR 2 CWH32143 24 SENSOR CO OUTDOOR AIR HEAT EXCHANGE TEMP 1 CWA50C2559 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C5657R O 28 CONTROL BOARD COVER TOP 1 CWH131264 29 CABINET SIDE PLATE CO 1 CWE04C1159 30 CABINET SIDE PLATE L 1 CWE041248A 31 CABINET FRONT PLATE CO 1 CWE06C1039 32 CABINET TOP ...

Page 107: ...107 17 2 3 CU YS22MKV 7 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service part ...

Page 108: ...1039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SENSOR CO OUTDOOR COMP TEMP 1 CWA50C2185 O 23 HOLDER SENSOR 1 CWMH320001 24 HOLDER SENSOR 1 CWH32143 26 SENSOR CO OUTDOOR AIR HEAT EXCHANGE TEMP 1 CWA50C2181 O 28 REACTOR 1 G0C153J00005 29 TERMINAL BOARD ASSY 1 CWA28K1036J O 30 ELECTRONIC CONTROLLER MAIN 1 CWA73C5658R O 31 CONTROL BOARD COVER TOP 1 CWH131167 32 CABINET SIDE PLATE 1 CWE041082A 33 HANDLE ...

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Panasonic CS-YS12MKV-7, Service Manual

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