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14.4 Troubleshooting

Flowchart

14.4.1 H11 (Indoor/Outdoor Abnormal Communication)

Malfunction Decision Conditions

•

During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal

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 waveform.

Troubleshooting

When abnormality indication starts again

Is there any wiring error?

•

Correct the indoor-outdoor units
connection wires

Check the indoor-outdoor units’ connection wires.

Disconnect terminal 3 wire and measure Vdc between terminal
2 & 3 from the outdoor unit.

Is the Vdc fluctuate between 20-70Vdc?

•

Replace

outdoor

PCB

Reconnect terminal 3 wire and measure Vdc between terminal
2 & 3 from the outdoor unit.

Is the Vdc fluctuate between 20-50Vdc?

•

Replace indoor unit PCB.

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Содержание CS-PS9JKT

Страница 1: ...KT 12 7 Wiring Connection Diagram 13 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings...

Страница 2: ...ention Control35 12 5 Low Pressure Prevention Control Gas Leakage Detection 36 12 6 Compressor Tank Temperature Rise Protection Control 36 12 7 Low Frequency Protection Control 1 36 12 8 Low Frequency...

Страница 3: ...rical shock or 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...

Страница 4: ...nt 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...

Страница 5: ...G20K1 Motor Type Induction 4 poles Induction 4 poles Input Power W 42 3 48 8 42 3 48 8 Output Power W 22 22 Lo rpm 710 750 Me rpm 840 900 Indoor Fan Speed Hi rpm 980 1060 Type Propeller Propeller Mate...

Страница 6: ...25 4 Fin Material Aluminium Blue coated Aluminium Blue coated Fin Type Slit Fin Louver Fin Row x Stage x FPI 2 x 23 x 17 1 x 20 x 19 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 483 0 x 553 4 573 4...

Страница 7: ...7 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control...

Страница 8: ...8 4 Dimensions 4 1 Indoor Unit...

Страница 9: ...ecessary for installation Anchor Bolt Pitch 261 x 474 Top View Front View 18 650 88 474 88 79 134 261 293 736 18 70 131 510 12 15 230 Side View Side View 3 way valve at Gas side Low Pressure 2 way val...

Страница 10: ...10 5 Refrigeration Cycle Diagram...

Страница 11: ...11 6 Block Diagram 6 1 CS PS9JKT CU PS9JKT...

Страница 12: ...12 6 2 CS PS12JKT CU PS12JKT...

Страница 13: ...13 7 Wiring Connection Diagram 7 1 Indoor Unit...

Страница 14: ...14 7 2 Outdoor Unit 7 2 1 CU PS9JKT...

Страница 15: ...15 7 2 2 CU PS12JKT...

Страница 16: ...16 8 Electronic Circuit Diagram 8 1 Indoor Unit...

Страница 17: ...17 8 2 Outdoor Unit 8 2 1 CU PS9JKT...

Страница 18: ...18 8 2 2 CU PS12JKT...

Страница 19: ...19 9 Printed Circuit Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board CN DATA1 CN FB CN TH CN STM1 SW01 CN DISP...

Страница 20: ...20 9 1 2 Power Printed Circuit Board 9 1 3 Indicator Printed Circuit Board CN DISP AC303 RY PWR CN PCFM AC301 AC304 CN DATA1...

Страница 21: ...21 9 2 Outdoor Unit 9 3 Main Printed Circuit Board 9 3 1 CU PS9JKT...

Страница 22: ...22...

Страница 23: ...23 9 3 2 CU PS12JKT...

Страница 24: ...he unit in excessive oil fume area such as kitchen workshop and etc There should not be any heat source or steam near the unit There should not be any obstacles blocking the air circulation A place wh...

Страница 25: ...t 6 from this line 1 Mount the installation plate on the wall with 5 screws or more at least 5 screws If mounting the unit on the wall consider using anchor bolts o Always mount the installation plate...

Страница 26: ...installation plate until hooks engages with their slot sound click Unit s hoo k Insert the connecting cable To take out the unit push the marking at the bottom unit and pull it slightly towards you to...

Страница 27: ...2 3 3 For the embedded piping This can be used for left rear piping left bottom piping also Replace the drain hose Bend the embedded piping Install the Indoor Unit Cut and flare the embedded piping Pu...

Страница 28: ...e indoor and outdoor cable connection onto the control board with the holder 7 Close grille door by tighten with screw and close the front panel This unit must be properly earthed Ensure the color of...

Страница 29: ...nnecting the Piping 10 3 2 1 Connecting the piping to indoor unit Please make flare after inserting flare nut locate at joint portion of tube assembly onto the copper pipe In case of using long piping...

Страница 30: ...does not move from 0cmHg 0Mpa to 76cmHg 0 1Mpa in step 3 above take the following measure If the leak stops when the piping connections are tightened further continue working from step 3 If the leak...

Страница 31: ...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 S...

Страница 32: ...ately 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 coun...

Страница 33: ...e control 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...

Страница 34: ...ncelled 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 b...

Страница 35: ...compressor operation will be decreased 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...

Страница 36: ...s 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 op...

Страница 37: ...re is higher than 13 C for 5 minutes the fan speed will return to its normal operation 12 12 Freeze Prevention Control 2 Control start conditions o During Cooling operation and soft dry operation Duri...

Страница 38: ...d 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 nea...

Страница 39: ...of transmission code change 13 2 2 CLOCK Button To change the remote control time format o Press for more than 5 seconds 13 2 3 RESET RC Button To clear and restore the remote control setting to facto...

Страница 40: ...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 i...

Страница 41: ...w 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 out...

Страница 42: ...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 sign...

Страница 43: ...irculation short circuit H99 Indoor heat exchanger freeze prevention protection Insufficient refrigerant Air filter dirty F11 4 way valve switching failure 4 occurrences within 30 minutes 4 way valve...

Страница 44: ...oor and outdoor units Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform Troubleshooting When abnormality indication starts again Is there any wiring error Corre...

Страница 45: ...he indoor and outdoor units Troubleshooting When abnormality indication starts again Is there any wiring error YES Matched compatibility Correct the indoor outdoor unit s connection wires Check the in...

Страница 46: ...Check the indoor intake air temperature sensor Plug out connector from the indoor unit PCB Measure the resistance of the indoor intake air temperature sensor For safety reason and to prevent componen...

Страница 47: ...mpressor temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor compressor temperature sensor For safety reason and to prevent component breakdown always...

Страница 48: ...sion Troubleshooting When abnormality indication starts again Check the functionality of current transformer CT Replace Compressor due to compressor low compression Is the CT open circuit Force heatin...

Страница 49: ...rn off power supply and rotate fan by hand Replace fan motor Does fan rotate smoothly Turn power supply on and operate fan Replace indoor PCB Replace fan motor For safety reason and to prevent compone...

Страница 50: ...ature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Defect in outdoor intake air temperature sensor Replace the outdoor intake...

Страница 51: ...starts again Turn off the power and reconnect CN CLN connector Turn on the power and measure again the DC voltage between CN CLN channel 4 2 Is the voltage measured at 5Vdc Defect in indoor unit e ion...

Страница 52: ...starts again Check the outdoor air temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor air temperature sensor Is the measured resistance of the outdoo...

Страница 53: ...er temperature sensor matches the value specified in its characteristic chart YES When abnormality indication starts again Check the outdoor heat exchanger temperature sensor Plug out connector from t...

Страница 54: ...installation Has the indoor and outdoor model matched in voltage rating Match the compatible model follow specification YES NO NO For safety reason and to prevent component breakdown always switch off...

Страница 55: ...Patrol sensor Troubleshooting NO When abnormality indication starts again Defective Patrol sensor Replace the Patrol sensor Has the error occurred after 6 hours continuous of PATROL ON function Check...

Страница 56: ...oor unit PCB Troubleshooting When abnormality indication starts again Is the air filter dirty Clean the air filter Check the indoor unit air filter Is the indoor unit heat exchanger dirty Clean the in...

Страница 57: ...ror due to faulty indoor unit PCB Troubleshooting When abnormality indication starts again Is the air filter dirty Clean the air filter Check the air filter Is the indoor unit heat exchanger dirty Cle...

Страница 58: ...20 10 10 0 10 20 30 40 50 0 1 Pipe temp Sensor 2 Intake Air Temp Sensor 1 2 When abnormality indication starts again Does it cable connection loose or connector broken Check the indoor pipe temperatu...

Страница 59: ...dc Correct the power supply Is the DC voltage between P and N terminal normal between 285 315Vdc Check the supply voltage Operate the system Verify PFC abnormality by measuring DC voltage between P an...

Страница 60: ...from the 2 3 way valve Replace the capillary tube or dryer When F91 indication happens For safety reason and to prevent component breakdown always switch off the power before remove and connect the c...

Страница 61: ...ircuit Malfunction Caused Compressor terminal disconnect Outdoor PCB malfunction Troubleshooting Normal When F93 indication happens For safety reason and to prevent component breakdown always switch o...

Страница 62: ...ensor Outdoor pipe temperature rise due to defective outdoor unit PCB Troubleshooting Is outdoor fan motor operating When F95 indication happens For safety reason and to prevent component breakdown al...

Страница 63: ...rcuitry of IPM IPM overheats due to defective IPM temperature sensor Troubleshooting Is outdoor fan motor operating When F96 indication happens For safety reason and to prevent component breakdown alw...

Страница 64: ...nent breakdown always switch off the power before remove and connect the component Check the compressor tank temperature sensor Open the 2 3 way valve YES NO Does it conform to the sensor characterist...

Страница 65: ...pacitor Over current due to excessive refrigerant Troubleshooting Turn off power supply Check the main circuit electrolytic capacitor When F98 indication happens For safety reason and to prevent compo...

Страница 66: ...on terminal on the board of the relay connector Tester s negative terminal Power transistor UVW Power transistor UVW Tester s positive terminal UVW Power transistor UVW Power transistor Normal resista...

Страница 67: ...in electric shocks 15 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 15 1 1 To remove front grille Figure 1 15 1 2 To remove power electronic controller Figure...

Страница 68: ...5 Detach the Earth wire 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 conne...

Страница 69: ...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 evapora...

Страница 70: ...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...

Страница 71: ...5 5 16 0 16 5 17 0 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Temperature Outlet Air 220V 2 0 2 2 2 4 2 6 2 8 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Temperature Capacity kW 220V 3 2...

Страница 72: ...5 8 16 0 16 2 16 4 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air 220V 2 30 2 40 2 50 2 60 2 70 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Capacity kW 220V 3 50 3 55 3 60 3 65 3 70 3...

Страница 73: ...32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Temperature Outlet Air 220V 2 6 2 8 3 0 3 2 3 4 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Temperature Capacity kW 220V 4 2 4 4 4 6 4 8 5 0 5 2 5 4 3...

Страница 74: ...4 14 6 14 8 15 0 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Outlet Air C 220V 3 00 3 10 3 20 3 30 3 40 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Capacity kW 220V 4 60 4 65 4 70 4 75 4 80 3...

Страница 75: ...Exploded View and Replacement Pars 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 p...

Страница 76: ...1 24 BACK COVER CHASSIS 1 CWD933019 25 FULCRUM 1 CWH621102 26 VERTICAL VANE 11 CWE241287 27 CONNECTING BAR 1 CWE261152 28 CONNECTING BAR 1 CWE261154 29 CONNECTING BAR 1 CWE261155 30 CONNECTING BAR 1 C...

Страница 77: ...77 17 2 Outdoor Unit 17 2 1 CU PS9JKT 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...

Страница 78: ...78 17 2 2 CU PS12JKT 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...

Страница 79: ...CWH7080300J 19 SOUND PROOF BOARD 1 CWH151185 CWH151172 20 SOUND PROOF MATERIAL 1 CWG302478 CWG302436 21 SOUND PROOF MATERIAL 1 CWG302479 CWG302431 22 SENSOR CO COMP TEMP 1 CWA50C2205 O 23 CONTROL BOAR...

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