Panasonic CS-PS9NKV Service Manual Download

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14.4.12 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)

Malfunction Decision Conditions

•

Freeze prevention 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

Summary of Contents for CS-PS9NKV

Page 1: ...se 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...

Page 2: ...trol 49 11 6 Random Auto Restart Control 50 11 7 Indication Panel 50 12 Protection Control 51 12 1 Restart Control Time Delay Safety Control 51 12 2 30 Seconds Forced Operation 51 12 3 Total Running C...

Page 3: ...ire 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 breakd...

Page 4: ...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...

Page 5: ...Hermetic Motor Rotary Hermetic Motor Rotary Motor Type Brushless 6 poles Brushless 6 poles Compressor Output Power W 650 650 Type Cross flow fan Cross flow fan Material ASG20K1 ASG20K1 Motor Type Ind...

Page 6: ...coated 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...

Page 7: ...Cross flow fan Material ASG30K1 ASG30K1 Motor Type Transistor 8 poles Transistor 8 poles Input Power W 94 8 94 8 Output Power W 40 40 Lo rpm 930 960 Me rpm 1110 1140 Indoor Fan Speed Hi rpm 1300 1330...

Page 8: ...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 24 x 17 1 x 31 x 19 Outdoor Heat Exchanger Size W x H x L mm 25 4 x 504 x 693 4...

Page 9: ...9 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control...

Page 10: ...10 4 Dimensions 4 1 Indoor Unit 4 1 1 CS PS9NKV CS PS12NKV...

Page 11: ...11 4 1 2 CS PS18NKV CS PS24NKV...

Page 12: ...12 4 2 Outdoor Unit 4 2 1 CU PS9NKV 4 2 2 CU PS12NKV CU PS18NKV...

Page 13: ...13 4 2 3 CU PS24NKV...

Page 14: ...14 5 Refrigeration Cycle Diagram 5 1 CS PS9NKV CU PS9NKV CS PS12NKV CU PS12NKV...

Page 15: ...15 5 2 CS PS18NKV CU PS18NKV CS PS24NKV CU PS24NKV...

Page 16: ...16 6 Block Diagram 6 1 CS PS9NKV CU PS9NKV...

Page 17: ...17 6 2 CS PS12NKV CU PS12NKV...

Page 18: ...18 6 3 CS PS18NKV CU PS18NKV...

Page 19: ...19 6 4 CS PS24NKV CU PS24NKV...

Page 20: ...20 7 Wiring Connection Diagram 7 1 Indoor Unit 7 1 1 CS PS9NKV CS PS12NKV...

Page 21: ...21 7 1 2 CS PS18NKV CS PS24NKV...

Page 22: ...22 7 2 Outdoor Unit 7 2 1 CU PS9NKV Resistance of Compressor Windings MODEL CU PS9NKV CONNECTION 5RS092XCE21 U V 1 152 U W 1 152 V W 1 152...

Page 23: ...23 7 2 2 CU PS12NKV Resistance of Compressor Windings MODEL CU PS12NKV CONNECTION 5RS092XCD21 U V 1 152 U W 1 152 V W 1 152...

Page 24: ...24 7 2 3 CU PS18NKV Resistance of Compressor Windings MODEL CU PS18NKV CONNECTION 5RD132XDA21 U V 1 152 U W 1 152 V W 1 152...

Page 25: ...25 7 2 4 CU PS24NKV Resistance of Compressor Windings MODEL CU PS24NKV CONNECTION 5RD132XBA21 U V 1 897 U W 1 907 V W 1 882...

Page 26: ...26 8 Electronic Circuit Diagram 8 1 Indoor Unit 8 1 1 CS PS9NKV CS PS12NKV...

Page 27: ...27 8 1 2 CS PS18NKV CS PS24NKV...

Page 28: ...28 8 2 Outdoor Unit 8 2 1 CU PS9NKV...

Page 29: ...29 8 2 2 CU PS12NKV...

Page 30: ...30 8 2 3 CU PS18NKV...

Page 31: ...31 8 2 4 CU PS24NKV...

Page 32: ...32 9 Printed Circuit Board 9 1 Indoor Unit 9 1 1 Main Printed Circuit Board 9 1 1 1 CS PS9NKV CS PS12NKV...

Page 33: ...33 9 1 1 2 CS PS18NKV CS PS24NKV 9 1 2 Indicator and Receiver Printed Circuit Board...

Page 34: ...34 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board 9 2 1 1 CU PS9NKV...

Page 35: ...35 9 2 1 2 CU PS12NKV...

Page 36: ...36 9 2 1 3 CU PS18NKV...

Page 37: ...37 9 2 1 4 CU PS24NKV...

Page 38: ...38 9 2 2 Noise Filter Printed Circuit Board 9 2 2 1 CU PS9NKV...

Page 39: ...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 conden...

Page 40: ...ts o Always mount the installation plate horizontally by aligning the marking off line with the thread and using a level gauge 2 Drill the piping plate hole with 70 mm hole core drill o Line according...

Page 41: ...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...

Page 42: ...indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1 5 mm2 1 0 1 5HP or 4 x 2 5 mm2 2 0 2 5HP flexible cord type designation 245 IEC 57 or heavier cord Do not use joint conne...

Page 43: ...hown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage 10 2 5 Wire Stripping And Connecting Requirement 10 2 6 Cutting and flaring the piping 1 Please...

Page 44: ...f 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 t...

Page 45: ...g 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 m...

Page 46: ...board with the holder clamper 4 Attach the control board cover back to the original position with the screw 5 For wire stripping and connection requirement refer to instruction 10 2 4 of the indoor u...

Page 47: ...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...

Page 48: ...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...

Page 49: ...rol the vane will shift to close position Manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as figure below...

Page 50: ...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...

Page 51: ...creased 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...

Page 52: ...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...

Page 53: ...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 P...

Page 54: ...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 ne...

Page 55: ...on 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...

Page 56: ...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...

Page 57: ...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...

Page 58: ...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...

Page 59: ...ir filter dirty Air circulation short circuit H99 Indoor heat exchanger freeze prevention protection Insufficient refrigerant Air filter dirty F11 4 way valve switching failure 4 occurrences within 30...

Page 60: ...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 outdo...

Page 61: ...re 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...

Page 62: ...tion 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 Cause...

Page 63: ...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 F...

Page 64: ...ons 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 de...

Page 65: ...termine 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...

Page 66: ...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...

Page 67: ...tion 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 Faul...

Page 68: ...tion 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 Fau...

Page 69: ...lfunction 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...

Page 70: ...uring 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...

Page 71: ...n 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 Dete...

Page 72: ...unction 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 p...

Page 73: ...eration 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...

Page 74: ...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 com...

Page 75: ...lfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused Compressor terminal disco...

Page 76: ...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 outdo...

Page 77: ...ture 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 overhe...

Page 78: ...n 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 clo...

Page 79: ...rent 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...

Page 80: ...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...

Page 81: ...the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 15 1 CS PS9 12NKV 15 1 1 Indoor Electronic Controllers Cross Fl...

Page 82: ...82 Figure 3 Figure 4 15 1 3 To remove discharge grille Figure 5 10 Pull out to remove the drain hose from the discharge grille 11 Then pull the discharge grille downward gently to dismantle it...

Page 83: ...and indoor fan motor Figure 7 Figure 8 12 Remove 4 screws holding the control board then pull out the control board 15 Remove the bearing by pulling it out gently 14 Remove the screw from the evapora...

Page 84: ...val of cross flow fan Reminder To reinstall the fan motor adjust the fan motor connector to 45 towards you before fixing control board 17 Remove the cross flow fan from the unit by pulling it to the l...

Page 85: ...charged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 15 2 CS PS18 24NKV 15 2 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan...

Page 86: ...86 Figure 13 Figure 14 15 2 3 To remove discharge grille Figure 15...

Page 87: ...87 15 2 4 To remove control board Figure 16 15 2 5 To remove cross flow fan and indoor fan motor Figure 17 Figure 18...

Page 88: ...88 Figure 19 Figure 20...

Page 89: ...16 100 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outlet Air Tempeature C Outdoor Air Temperature C 220 2 100 2 200 2 300 2 400 2 500 2 600 2 700 2 800 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor...

Page 90: ...3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Cooling Capacity kW 3 300 3 350 3 400 3 450 3 4 5 6 7 8 9 10 11 12 13 14 15 Current A Piping Length m 1 140 1 142 1 144 1 146 1 148 1 150 1 152 1 154 3...

Page 91: ...1 42 43 Outlet Air Tempeature C Outdoor Air Temperature C 220 2 600 2 700 2 800 2 900 3 000 3 100 3 200 3 300 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 3...

Page 92: ...100 3 200 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Cooling Capacity kW 3 900 3 950 4 000 4 050 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...

Page 93: ...9 40 41 42 43 Outlet Air Tempeature C Outdoor Air Temperature C 220 4 600 4 800 5 000 5 200 5 400 5 600 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor Air Temperature C Cooling Capacity kW 6 100 6...

Page 94: ...16 17 18 19 20 Piping Length m Cooling Capacity kW 6 600 6 700 6 800 6 900 7 000 7 100 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Current A 0 970 0 975 0 980 0 985 0 990 0 995 3 4...

Page 95: ...38 39 40 41 42 43 Outlet Air Tempeature C Outdoor Air Temperature C 220 5 300 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 5...

Page 96: ...16 17 18 19 20 Piping Length m Cooling Capacity kW 8 000 8 100 8 200 8 300 8 400 8 500 8 600 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m Current A 0 890 0 895 0 900 0 905 0 910 0 91...

Page 97: ...and Replacement Parts List 17 1 Indoor Unit 17 1 1 CS PS9NKV CS PS12NKV Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as sta...

Page 98: ...LE COMPLETE 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 CWH521...

Page 99: ...99 17 1 2 CS PS18NKV CS PS24NKV 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 100: ...TE 1 CWE20C3243 27 BACK COVER CHASSIS 1 CWD933031 28 FULCRUM 2 CWH621138 29 VERTICAL VANE 11 CWE241374 30 CONNECTING BAR 1 CWE261260 31 CONNECTING BAR 1 CWE261263 33 AIR SWING MOTOR 1 CWA981241 O 34 C...

Page 101: ...101 17 2 Outdoor Unit 17 2 1 CU PS9NKV 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 102: ...H151185 20 TERMINAL COVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SENSOR COMPLETE 1 CWA50C2205 O 23 WIRE NET 1 CWD041057A 24 SENSOR COMPLETE 1 CWA50C2502 O 25 TERMINAL BOARD ASSY 1 CWA28K1...

Page 103: ...103 17 2 2 CU PS12NKV 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 104: ...OVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SENSOR COMPLETE 1 CWA50C2205 O 24 SENSOR COMPLETE 1 CWA50C2764 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6...

Page 105: ...105 17 2 3 CU PS18NKV 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 106: ...CWA50C2205 O 24 SENSOR CO OUTDOOR AIR HEAT EXCHANGE TEMP 1 CWA50C2764 O 25 TERMINAL BOARD ASSY 1 CWA28K1036J O 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6346R O 28 CONTROL BOARD COVER TOP 1 CWH131264 29 C...

Page 107: ...107 17 2 4 CU PS24NKV 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: ...OUTDOOR COMP TEMP 1 CWA50C2185 23 WIRE NET 1 CWD041155A 27 SENSOR CO 1 CWA50C2769 O 28 REACTOR 1 G0C153J00005 29 TERMINAL BOARD ASSY 1 CWA28K1036J 30 ELECTRONIC CONTROLLER MAIN 1 CWA73C6347R O 31 CON...

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