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Panasonic CS-PS12NKH Service Manual Download Page 73

73 

14.4.10    H33 (Unspecified Voltage between Indoor and Outdoor) 

Malfunction Decision Conditions 

š

  The supply power is detected for its requirement by the indoor/outdoor transmission. 

 
Malfunction Caused 

š

  Wrong models interconnected. 

š

  Wrong indoor unit and outdoor unit PCBs used. 

š

  Indoor unit or outdoor unit PCB defective. 

 
Troubleshooting 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 

Summary of Contents for CS-PS12NKH

Page 1: ...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 injury or dea...

Page 2: ...ntrol 54 11 6 Random Auto Restart Control 54 11 7 Indication Panel 54 12 Protection Control 55 12 1 Restart Control Time Delay Safety Control 55 12 2 30 Seconds Forced Operation 55 12 3 Total Running Current Control 55 12 4 IPM Power Transistor Prevention Control 55 12 5 Low Pressure Prevention Control Gas Leakage Detection 56 12 6 Compressor Tank Temperature Rise Protection Control 56 12 7 Low Fr...

Page 3: ...fire 9 This equipment is strongly recommended to install with Earth Leakage Circuit Breaker ELCB or Residual 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 ...

Page 4: ...y 5 Select an installation location which is easy for maintenance 6 Pb free solder has a higher melting point than standard solder typically the melting point 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 Po...

Page 5: ...6 9 1 28k Starting Current A 3 7 5 0 Type Hermetic Motor Hermatic Motor Motor Type Brushless 6 poles Brushless 6 poles Compressor Output Power W 500 650 Type Cross flow fan Cross flow fan Material ASG20K1 ASG20K1 Motor Type Transistor 8 poles Induction 4 poles Input Power W 48 5 48 5 Output Power W 40 24 Lo rpm 680 720 Me rpm 840 900 Indoor Fan Speed Hi rpm 1000 1080 Type Propeller Propeller Mater...

Page 6: ...ated Fin Type Slit Fin Slit Fin Row x Stage x FPI 2 x 15 x 17 2 x 15 x 17 Indoor Heat Exchanger Size W x H x L mm 610 x 315 x 25 4 610 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 18 x 17 2 x 23 x 17 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 482 6 x 567 4 25 4 x 483 0 x 553 4 573 4 Material Polypropelene Polypropelen...

Page 7: ...0 650 Type Cross flow fan Cross flow fan Material ASG20K1 ASG20K1 Motor Type Transistor 8 poles Induction 4 poles Input Power W 47 0 50 0 47 0 50 0 Output Power W 40 24 Lo rpm 680 720 Me rpm 840 900 Indoor Fan Speed Hi rpm 1000 1080 Type Propeller Propeller Material PP Resin PP Resin Motor Type Induction 6 poles Induction 6 poles Input Power kW Output Power W 30 30 Outdoor Fan Speed Hi rpm 730 770...

Page 8: ...10 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 19 x 17 2 x 23 x 17 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 482 6 x 567 4 25 4 x 483 0 x 553 4 573 4 Material Polypropelene Polypropelene Air Filter Type One touch One touch Power Supply Indoor Indoor Power Supply Cord A 10 10 Thermostat Protection Device DRY BULB WET...

Page 9: ...W 900 900 Type Cross flow fan Cross flow fan Material ASG20K1 ASG30K1 Motor Type Transistor 8 poles Transistor 8 poles Input Power W Output Power W 40 40 Lo rpm 850 930 Me rpm 1090 1120 Indoor Fan Speed Hi rpm 1320 1300 Type Propeller Propeller Material PP Resin PP Resin Motor Type Induction 8 poles Induction 6 poles Input Power kW Output Power W 40 80 Outdoor Fan Speed Hi rpm 840 780 Moisture Rem...

Page 10: ...810 x 315 x 25 4 Fin Material Aluminium Blue coated Aluminium Blue coated Fin Type Slit Fin Slit Fin Row x Stage x FPI 2 x 23 x 17 1 x 31 x 19 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 504 x 693 4 713 4 12 7 x 651 0 x 868 0 Material Polypropelene Polypropelene Air Filter Type One touch One touch Power Supply Indoor Indoor Power Supply Cord A 15 20 Thermostat Protection Device DRY BULB WET BU...

Page 11: ...put Power W 900 900 Type Cross flow fan Cross flow fan Material ASG20K1 ASG30K1 Motor Type Transistor 8 poles Transistor 8 poles Input Power W Output Power W 40 40 Lo rpm 850 930 Me rpm 1090 1120 Indoor Fan Speed Hi rpm 1320 1300 Type Propeller Propeller Material PP Resin PP Resin Motor Type Induction 8 poles Induction 6 poles Input Power kW Output Power W 40 80 Outdoor Fan Speed Hi rpm 840 760 80...

Page 12: ...810 x 315 x 25 4 Fin Material Aluminium Blue coated Aluminium Blue coated Fin Type Slit Fin Slit Fin Row x Stage x FPI 2 x 23 x 17 1 x 31 x 19 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 504 x 693 4 713 4 12 7 x 651 0 x 868 0 Material Polypropelene Polypropelene Air Filter Type One touch One touch Power Supply Indoor Indoor Power Supply Cord A 15 20 Thermostat Protection Device DRY BULB WET BU...

Page 13: ...13 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control ...

Page 14: ...14 4 Dimensions 4 1 Indoor Unit 4 1 1 CS PS9NKH CS PS12NKH CS PS18NKH ...

Page 15: ...15 4 1 2 CS PS24NKH ...

Page 16: ...16 4 2 Outdoor Unit 4 2 1 CU PS9NKH CU PS12NKH 4 2 2 CU PS18NKH ...

Page 17: ...17 4 2 3 CU PS24NKH ...

Page 18: ...18 5 Refrigeration Cycle Diagram 5 1 CS PS9NKH CU PS9NKH CS PS12NKH CU PS12NKH ...

Page 19: ...19 5 2 CS PS18NKH CU PS18NKH CS PS24NKH CU PS24NKH ...

Page 20: ...20 6 Block Diagram 6 1 CS PS9NKH CU PS9NKH ...

Page 21: ...21 6 2 CS PS12NKH CU PS12NKH ...

Page 22: ...22 6 3 CS PS18NKH CU PS18NKH ...

Page 23: ...23 6 4 CS PS24NKH CU PS24NKH ...

Page 24: ...24 7 Wiring Connection Diagram 7 1 Indoor Unit 7 1 1 CS PS9NKH CS PS18NKH CS PS24NKH ...

Page 25: ...25 7 1 2 CS PS12NKH ...

Page 26: ...26 7 2 Outdoor Unit 7 2 1 CU PS9NKH Resistance of Compressor Windings MODEL CU PS9NKH CONNECTION 5SS072XGA21 U V 3 034Ω U W 3 021Ω V W 3 009Ω ...

Page 27: ...27 7 2 2 CU PS12NKH Resistance of Compressor Windings MODEL CU PS12NKH CONNECTION 5RS092XCE21 U V 1 152Ω U W 1 152Ω V W 1 152Ω ...

Page 28: ...28 7 2 3 CU PS18NKH Resistance of Compressor Windings MODEL CU PS18NKH CONNECTION 5RD132XDA21 U V 1 152Ω U W 1 152Ω V W 1 152Ω ...

Page 29: ...29 7 2 4 CU PS24NKH Resistance of Compressor Windings MODEL CU PS24NKH CONNECTION 5RD132XBA21 U V 1 897Ω U W 1 907Ω V W 1 882Ω ...

Page 30: ...30 8 Electronic Circuit Diagram 8 1 Indoor Unit 8 1 1 CS PS9NKH CS PS18NKH CS PS24NKH ...

Page 31: ...31 8 1 2 CS PS12NKH ...

Page 32: ...32 8 2 Outdoor Unit 8 2 1 CU PS9NKH ...

Page 33: ...33 8 2 2 CU PS12NKH ...

Page 34: ...34 8 2 3 CU PS18NKH ...

Page 35: ...35 8 2 4 CU PS24NKH ...

Page 36: ...36 9 Printed Circuit Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board 9 1 1 1 CS PS9NKH CS PS18NKH CS PS24NKH ...

Page 37: ...37 9 1 1 2 CS PS12NKH 9 1 2 Indicator Printed Circuit Board ...

Page 38: ...38 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board 9 2 1 1 CU PS9 12NKH ...

Page 39: ...39 9 2 1 2 CU PS18NKH ...

Page 40: ...40 9 2 1 3 CU PS24NKH ...

Page 41: ...41 9 2 2 Noise Filter Printed Circuit Board 9 2 2 1 CU PS9NKH CU PS12NKH ...

Page 42: ...ded 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 43: ...ligning 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 Putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the distance namely 128 mm for left and right hole respectively Another method is intersection point of arrow mark extension The meeting point of the extension arrow...

Page 44: ...0 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 This can be used for left rear piping and bottom piping also ...

Page 45: ...he existing wire from concealed wiring or otherwise is too short o In unavoidable case joining of power supply cord between isolating devices and terminal board of air conditioner shall be done by using approved socket and plug rated 15 16A 1 0 1 5HP or 16A 2 0HP or 20A 2 5HP Wiring work to both socket and plug must follow to national wiring standard 4 Bind all the power supply cord lead wire with...

Page 46: ...ose grille door by tighten with screw and close the front panel Note Isolating Devices Disconnecting means should have minimum 3 0 mm contact gap 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 the other AC wires as shown in the figure for the electrical safety in case of the sl...

Page 47: ...47 10 2 5 Wire Stripping And Connecting Requirement ...

Page 48: ...of tube assembly onto the copper pipe In case of using long piping Connect the piping Align 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 10 3 2 2 Connecting the piping to outdoor Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Make flare after in...

Page 49: ...the gauge moves from 0 cmHg 0 MPa to 76 cmHg 0 1 MPa Then evacuate the air approximately 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 REFRIGERENT GAS LEAKAGE 5 Disconnect the charging hose from the vacuum pump and fro...

Page 50: ...r to instruction 10 2 4 of the indoor unit Earth wire shall be Yellow Green Y G in colour and longer than the other AC wires for safety reason 10 3 5 Piping 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 pipin...

Page 51: ... supplied to the unit 11 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 Temperatur...

Page 52: ... Medium Lower 1 pattern 10s Feedback control o Immediately 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 ...

Page 53: ...n 1 2 3 4 5 Automatic 5 35 Cooling Manual 5 12 5 20 27 5 35 Automatic 5 35 Dry Manual 5 12 5 20 27 5 35 Automatic vertical airflow direction can be set using remote control the vane swings up and down within the angles as stated above When the air conditioner is stopped using remote control the vane will shift to close position Manual vertical airflow direction can be set using remote control the ...

Page 54: ...ancelled 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 11 6 Random Auto Restart Control When 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 selec...

Page 55: ...or 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 PS9 PS12 PS18 PS24 Operation Mode X A Y A X A Y A X A Y A X A Y A Cooling Soft Dry A 5 6 15 0 6 5 15 0 10 8 15 0 13 0 19 0 Cooling Soft Dry B 5 2 15 0 6 2 15 0 10 3 15 0 12 5 19 0 The first 30 minutes of cooling operation A...

Page 56: ...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 57: ...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 Outdoor air temperature and indoor pipe temperature judgment by microcontroller is fulfill...

Page 58: ...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 59: ...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 60: ... 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 61: ...h Pressure Electric current during operation Insufficient refrigerant gas leakage Ô Ô Ô Clogged capillary tube or strainer Ô Ô Ô Short circuit in the indoor unit Ô Ô Ô Heat radiation deficiency of the outdoor unit Ò Ò Ò Inefficient compression Ò Ô Ô Carry out the measurement of pressure electric current and temperature fifteen minutes after an operation is started ...

Page 62: ...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 63: ...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 64: ...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 65: ...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 66: ...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 67: ...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 68: ...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 69: ...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 70: ... 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 71: ...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 72: ...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 73: ...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 74: ...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 75: ...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 76: ...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 77: ...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 78: ... 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 79: ...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 80: ...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 81: ...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 82: ...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 83: ...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 84: ...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 85: ...ufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 15 1 CS PS9 12 18NKH 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 4 Remove the control board cover by releasing the hook ...

Page 86: ...86 Figure 3 Figure 4 15 1 3 To remove discharge grille Figure 5 11 Pull out to remove the drain hose from the discharge grille 12 Then pull the discharge grille downward gently to dismantle it ...

Page 87: ...n and indoor fan motor Figure 7 Figure 8 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 88: ...oval 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 10 ...

Page 89: ...s discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 15 2 CS PS24NKH 15 2 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 15 2 1 1 To remove front grille Figure 11 15 2 2 To remove horizontal vane Figure 12 ...

Page 90: ...90 15 2 3 To remove power electronic controller Figure 13 Figure 14 15 2 4 To remove discharge grille Figure 15 ...

Page 91: ...91 15 2 5 To remove control board Figure 16 15 2 6 To remove cross flow fan and indoor fan motor Figure 17 Figure 18 ...

Page 92: ...92 Figure 19 Figure 20 ...

Page 93: ... 800 16 000 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Tempeature C 230 2 200 2 300 2 400 2 500 2 600 2 700 2 800 2 900 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 3 400 3 600 3 800 4 000 4 200 4 400 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 1 060 1 070 1 080 1 090 1 100 1 110 30 31 ...

Page 94: ...0 2 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Cooling Capacity kW 3 600 3 650 3 700 3 750 3 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A 1 080 1 085 1 090 1 095 1 100 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 14 800 14 900 15 000 15 100 15 200 15 300 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 230 ...

Page 95: ...8 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Temperature C 220 240 2 200 2 300 2 400 2 500 2 600 2 700 2 800 2 900 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 3 300 3 500 3 700 3 900 4 100 4 300 4 500 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 1 060 1 070 1 080 1 090 1 100 1 110 30 31 32 33 34 35 36 37 38 39 40...

Page 96: ...2 750 2 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Cooling Capacity kW 1 080 1 085 1 090 1 095 1 100 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 14 800 14 900 15 000 15 100 15 200 15 300 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 240 3 500 3 600 3 700 3 800 3 900 4 000 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Curren...

Page 97: ... 38 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Tempeature C 230 3 100 3 200 3 300 3 400 3 500 3 600 3 700 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 4 700 4 900 5 100 5 300 5 500 5 700 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 0 980 0 990 1 000 1 010 1 020 1 030 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdo...

Page 98: ...0 3 600 3 700 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Cooling Capacity kW 4 900 4 950 5 000 5 050 5 100 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A 1 000 1 005 1 010 1 015 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 14 300 14 400 14 500 14 600 14 700 14 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 230 ...

Page 99: ...36 37 38 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Temperature C 220 240 3 100 3 200 3 300 3 400 3 500 3 600 3 700 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 4 600 4 800 5 000 5 200 5 400 5 600 5 800 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 0 980 0 990 1 000 1 010 1 020 1 030 30 31 32 33 34 35 36 37 38 39 4...

Page 100: ... 3 700 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Cooling Capacity kW 1 000 1 005 1 010 1 015 1 020 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Gas Side Piping Pressure MPa 14 300 14 400 14 500 14 600 14 700 14 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air Temperature C 220 240 4 800 4 900 5 000 5 100 5 200 5 300 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Current A ...

Page 101: ... 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Tempeature C 230 4 300 4 500 4 700 4 900 5 100 5 300 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 6 200 6 400 6 600 6 800 7 000 7 200 7 400 7 600 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 1 010 1 030 1 050 1 070 1 090 1 110 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Ou...

Page 102: ... 11 12 13 14 15 16 17 18 19 20 Piping Length m Cooling Capacity kW 6 700 6 800 6 900 7 000 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Current A 1 020 1 030 1 040 1 050 1 060 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Gas Side Piping Pressure MPa 14 900 15 000 15 100 15 200 15 300 15 400 15 500 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Ou...

Page 103: ...8 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Temperature C 220 240 4 300 4 500 4 700 4 900 5 100 5 300 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 6 100 6 600 7 100 7 600 8 100 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 0 890 0 900 0 910 0 920 0 930 0 940 0 950 0 960 0 970 0 980 30 31 32 33 34 35 36 37 38 39 40...

Page 104: ...8 19 20 Piping Length m Cooling Capacity kW 0 890 0 900 0 910 0 920 0 930 0 940 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Gas Side Piping Pressure MPa 14 800 14 900 15 000 15 100 15 200 15 300 15 400 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Outlet Air Temperature C 220 240 6 400 6 500 6 600 6 700 6 800 6 900 7 000 7 100 7 200 7 300 3 4 5 6 7 8 9 10 11 12 ...

Page 105: ... 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Outlet Air Tempeature C 230 5 500 5 700 5 900 6 100 6 300 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 7 900 8 400 8 900 9 400 9 900 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 0 870 0 890 0 910 0 930 0 950 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Te...

Page 106: ... 12 13 14 15 16 17 18 19 20 Piping Length m Cooling Capacity kW 8 500 8 600 8 700 8 800 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Current A 0 880 0 890 0 900 0 910 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Gas Side Piping Pressure MPa 13 700 13 800 13 900 14 000 14 100 14 200 14 300 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Outlet Air ...

Page 107: ...40 41 42 43 Outdoor Air Temperature C Outlet Air Temperature C 220 240 5 500 5 700 5 900 6 100 6 300 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 7 600 8 100 8 600 9 100 9 600 10 100 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Current A 0 840 0 850 0 860 0 870 0 880 0 890 0 900 0 910 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoo...

Page 108: ...8 19 20 Piping Length m Cooling Capacity kW 0 840 0 850 0 860 0 870 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Gas Side Piping Pressure MPa 13 600 13 700 13 800 13 900 14 000 14 100 14 200 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Outlet Air Temperature C 220 240 8 200 8 300 8 400 8 500 8 600 8 700 8 800 8 900 9 000 9 100 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...

Page 109: ... Replacement Parts List 17 1 Indoor Unit 17 1 1 CS PS9NKH CS PS12NKH CS PS18NKH 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 110: ...E 1 CWE20C3236 27 BACK COVER CHASSIS 1 CWD933233 28 FULCRUM 1 CWH621131 29 VERTICAL VANE 8 CWE241374 30 CONNECTING BAR 2 CWE261251 33 AIR SWING MOTOR 1 CWA981264 O 34 CAP DRAIN TRAY 1 CWH521096 35 HORIZONTAL VANE COMPLETE 1 CWE24C1385 36 REMOTE CONTROL COMPLETE 1 CWA75C3716 O 37 FRONT GRILLE COMPLETE 1 CWE11C5055 O 38 INTAKE GRILLE COMPLETE 1 CWE22C1757 39 GRILLE DOOR COMPLETE 1 CWE14C1090 40 AIR ...

Page 111: ...LETE 1 CWE20C3236 27 BACK COVER CHASSIS 1 CWD933233 28 FULCRUM 1 CWH621131 29 VERTICAL VANE 8 CWE241374 30 CONNECTING BAR 2 CWE261251 33 AIR SWING MOTOR 1 CWA981264 O 34 CAP DRAIN TRAY 1 CWH521096 35 HORIZONTAL VANE COMPLETE 1 CWE24C1385 36 REMOTE CONTROL COMPLETE 1 CWA75C3716 O 37 FRONT GRILLE COMPLETE 1 CWE11C5055 O 38 INTAKE GRILLE COMPLETE 1 CWE22C1757 O 39 GRILLE DOOR COMPLETE 1 CWE14C1090 40...

Page 112: ...112 17 1 2 CS PS24NKH 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 113: ...8 29 VERTICAL VANE 11 CWE241374 30 CONNECTING BAR RIGHT 1 CWE261263 31 CONNECTING BAR LEFT 1 CWE261260 33 AIR SWING MOTOR 1 CWA981241 O 34 CAP DRAIN TRAY 1 CWH521096 35 HORIZONTAL VANE COMPLETE 1 CWE24C1392 36 REMOTE CONTROL COMPLETE 1 CWA75C3716 O 37 FRONT GRILLE COMPLETE 1 CWE11C5157 O 38 INTAKE GRILLE COMPLETE 1 CWE22C1740 39 GRILLE DOOR COMPLETE 1 CWE14C1090 40 AIR FILTER 2 CWD001283 41 SCREW ...

Page 114: ...21138 29 VERTICAL VANE 11 CWE241374 30 CONNECTING BAR RIGHT 1 CWE261263 31 CONNECTING BAR LEFT 1 CWE261260 33 AIR SWING MOTOR 1 CWA981241 O 34 CAP DRAIN TRAY 1 CWH521096 35 HORIZONTAL VANE COMPLETE 1 CWE24C1392 36 REMOTE CONTROL COMPLETE 1 CWA75C3716 O 37 FRONT GRILLE COMPLETE 1 CWE11C5157 O 38 INTAKE GRILLE COMPLETE 1 CWE22C1740 O 39 GRILLE DOOR COMPLETE 1 CWE14C1090 40 AIR FILTER 2 CWD001283 41 ...

Page 115: ...115 17 2 Outdoor Unit 17 2 1 CU PS9NKH CU PS12NKH 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 116: ... CWB021463 O 19 SOUND PROOF BOARD 1 CWH151185 20 TERMINAL COVER 1 CWH171041 CWH171039A 21 NUT TERMINAL COVER 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 CWA73C6302R O 27 ELECTRONIC CONTROLLER NF 1 CWH14C7640 CWH14C6052 O 28 CONTROL BOARD COVER TOP 1 CWH131324 29 CABINET S...

Page 117: ...63 O 19 SOUND PROOF BOARD 1 CWH151185 20 TERMINAL COVER 1 CWH171041 CWH171039A 21 NUT TERMINAL COVER 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 CWA73C6302R CWA73C6303R O 27 ELECTRONIC CONTROLLER NF 1 CWH14C7640 CWH14C6052 O 28 CONTROL BOARD COVER TOP 1 CWH131324 29 CABIN...

Page 118: ...118 17 2 2 CU PS18NKH 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 119: ...51172 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 CWA50C2764 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6340R O 28 CONTROL BOARD COVER TOP 1 CWH131264 29 CABINET SIDE PLATE CO 1 CWE04C1102 30 CABINET SIDE PLATE LEFT 1 CWE041031A 31 CABINET FRONT PLATE CO 1 CWE06C10...

Page 120: ...1 CWH7080300J 22 SENSOR CO COMP TEMP 1 CWA50C2205 O 24 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWA50C2764 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6340R O 28 CONTROL BOARD COVER TOP 1 CWH131264 29 CABINET SIDE PLATE CO 1 CWE04C1102 30 CABINET SIDE PLATE L 1 CWE041031A 31 CABINET FRONT PLATE CO 1 CWE06C1039 32 CABINET TOP PLATE 1 CWE031014A 33 CONTROL BOARD COVER CO...

Page 121: ...121 17 2 3 CU PS24NKH 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 122: ...CWH151257 20 TERMINAL COVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SENSOR CO COMP TEMP 1 CWA50C2185 O 27 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWA50C2769 O 28 REACTOR 1 G0C153J00005 29 TERMINAL BOARD ASSY 1 CWA28K1036J O 30 ELECTRONIC CONTROLLER MAIN 1 CWA73C6341R O 31 CONTROL BOARD COVER TOP 1 CWH131333 32 CABINET SIDE PLATE CO 1 CWE041554A 33 HANDLE 1 CWE161010 34 CABINET SIDE PLATE LE...

Page 123: ...J 22 SENSOR CO COMP TEMP 1 CWA50C2185 O 27 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWA50C2769 O 28 REACTOR 1 G0C153J00005 29 TERMINAL BOARD ASSY 1 CWA28K1036J O 30 ELECTRONIC CONTROLLER MAIN 1 CWA73C6341R O 31 CONTROL BOARD COVER TOP 1 CWH131333 32 CABINET SIDE PLATE CO 1 CWE041554A 33 HANDLE 1 CWE161010 34 CABINET SIDE PLATE LEFT 1 CWE041560A 35 CABINET FRONT PLATE CO 1 CWE06K1077 36 CABINET TOP PLATE...

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