Klimaire KSIM20912-H216 Service Manual
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Klimaire KSIM20912-H216 Service Manual

Multi outdoor units
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KSIM
CondEnsinG units
Model Numbers:
KSIM20912-H216 (2g)
KSIM20912-H216 (3g)
KSIM30912-H216 (2g)

Table of Contents

1.
2.
3.
4.
5.
6.
7.
8.
Trouble Shooting
9.
Disassembly Instructions
WARNING
•
Installation MUST conform with local building codes or, in the absence of local
codes, with the National Electrical Code NFPA70/ANSI C1-1993 or current edition
and Canadian Electrical Code Part1 CSA C.22.1.
The information contained in the manual is intended for use by a qualified service
•
technician familiar with safety procedures and equipped with the proper tools and
test instruments
Installation or repairs made by unqualified persons can result in hazards to you
•
and others.
Failure to carefully read and follow all instructions in this manual can result in
•
equipment malfunction, property damage, personal injury and/or death.
Multi outdoor units
sErViCE MAnuAl
KSIM330-H219
KSIM40912-H216 (2g)
Multi zone

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Summary of Contents for Klimaire KSIM20912-H216

  • Page 1: Table Of Contents

    Multi outdoor units sErViCE MAnuAl Multi zone KSIM CondEnsinG units Model Numbers: KSIM20912-H216 (2g) KSIM330-H219 KSIM20912-H216 (3g) KSIM40912-H216 (2g) KSIM30912-H216 (2g) Table of Contents Indoor Unit Combination Suggested Indoor Unit Model Numbers Dimension Of Outdoor Unit Refrigerant Cycle Diagram Installation Details...
  • Page 2 8.2 Indoor Unit Error Display ..........................34 8.3 Outdoor Unit Display ............................37 8.4 Diagnosis and Solution ........................... 41 8.5 Trouble Criterion Of Main Parts........................90 Disassembly Instructions ............................ 101  Model: KSIM20912-H216 (2g), KSIM20912-H216 (3g) (W210 metal plate) ........... 101...
  • Page 3  Model: KSIM30912-H216 (2g) (W210 metal plate).................. 107  Model: KSIM330-H219 (W310 metal plate) .................. 114  Model: KSIM40912-H216 (2g) (W520 metal plate) .................. 122...

  • Page 4: Indoor Unit Combination

    1. Indoor Unit Combination Multi DC Nominal Suggested Limit Outdoor Unit capacity Combination 7+12 Multi DC Nominal Suggested Limit Outdoor Unit capacity Combination 7+18 9+12 1drive 2(M2OC) 5.2kW 7+12 None 9+18 12+12 9+12 12+18 18+18 7+7+7 Multi DC Nominal Suggested 7+7+9 Limit Outdoor Unit...
  • Page 5 12+12+12 12+12+18 12+18+18 7+7+7+7 7+7+7+9 7+7+7+12 7+7+7+18 7+7+9+9 7+7+9+12 7+7+9+18 7+9+9+9 7+9+9+12 7+9+9+18 7+9+12+12 7+9+12+18 7+12+12+12 7+12+12+18 9+9+9+9 9+9+9+12 9+9+9+18 9+9+12+12 9+9+12+18 9+12+12+12 12+12+12+12...

  • Page 6: Suggested Indoor Unit Model Numbers

    2. Suggested Indoor Unit Model Numbers SUGGESTED INDOOR SUGGESTED INDOOR KWIL09-H2 KWIL09-H2 KWIM09-H2 KWIM09-H2 KWIO09-H2 KWIM12-H2 KWIM12-H2 KWIL12-H2 KWIL12-H2 KDIM012-H2 KWIO12-H2 KFIM012-H2 KDIM012-H2 KTIM012-H2 KUIM012-H2 KFIM012-H2 KTIM012-H2 KUIM012-H2 SUGGESTED INDOOR KWIM18-H2 KWIL09-H2 KWIL18-H2 KWIO18-H2 KWIM09-H2 KWIO09-H2 KDIM018-H2 KTIM018-H2 KWIM12-H2 KUIM018-H2 KWIL12-H2 KWIO12-H2 KDIM012-H2...

  • Page 7: Dimension Of Outdoor Unit

    3. Dimension Of Outdoor Unit Dimension (mm(in.)) Model KSIM20912-H216 (2g) 845(33.3) 320(12.6) 700(27.6) 908(35.7) 560(22) 335(13.2) KSIM20912-H216 (3g) KSIM30912-H216 (2g) 900(35.4) 315(12.4) 860(33.9) 980(38.6) 590(23.2) 333(13.1) KSIM330-H219 KSIM40912-H216 (2g) 990(39) 345(13.6) 965(38) 1075(42.3) 624(24.6) 366(14.4)

  • Page 8: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram 5.1Refrigeration circuit drawing of inverter dual zone INDOOR OUTDOOR EXV A CAPILIARY A LIQUID VALVE A CHECK VALVE EXV B CAPILIARY B LIQUID VALVE B Condenser temp. sensor CAPILIARY TUBE HEAT HEAT EXCHANGE T4 Ambient T1 Room EXCHANGE (EVAPORATOR) temp.

  • Page 9: Installation Details

    INDOOR OUTDOOR EXV A CAPILIARY A LIQUID VALVE A EXV B CAPILIARY B LIQUID VALVE B CHECK VALVE EXV C CAPILIARY C LIQUID VALVE C Condenser temp. sensor EXV D CAPILIARY D CAPILIARY TUBE LIQUID VALVE D HEAT HEAT EXCHANGE T4 Ambient T1 Room EXCHANGE...

  • Page 10: Installation For The First Time

    5.4 Installation for the first time whether the compound meter indicates - 0.1Mpa(14.5Psi). If the meter does not indicate - 0.1Mpa(14.5Psi) after pumping 30 minutes, it Air and moisture in the refrigerant system have should be pumped 20 minutes more. If the undesirable effects as below: pressure can’t achieve -0.1Mpa(14.5Psi) after pumping 50 minutes, please check if there are...

  • Page 11: Adding The Refrigerant After Running The System For Many Years

    discharge the refrigerant by loosening the flare immediately and turn off the air conditioner nut on the 2-way valve approximately 45’ until the 7). Mount the valve stems nuts and the service port gauge indicates 0.3Mpa(43.5Psi) to 0.5 cap. Mpa(72.5Psi).. Be sure to use a torque wrench to tighten the 6).

  • Page 12: Re-Installation While The Indoor Unit Need To Be Repaired

    5.6 Re-installation while the indoor unit need to be repaired 1. Collecting the refrigerant into the outdoor unit Procedure: 1). Confirm that both the 2-way and 3-way valves are set to the closed position. 2). Connect the charge set and a charging cylinder to the service port of the 3-way valve Leave the valve on the charging cylinder closed.

  • Page 13: Electronic Function

    3) Put the charging cylinder onto the electronic scale and record the weight. 4). Open the valves (Low side) on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant, or can be charged with a little at a time (approximately 150g each time) , operating the air conditioner in the cooling cycle;...

  • Page 14: Main Protection

    6.3 Main Protection If the compressor current exceeds the current limit value for 10 seconds, the compressor frequency will be limited as below table. 6.3.1 Three Minutes Delay at restart for compressor. Cooling mode: ---- 1min delay for the 1 time start-up and 3 Current Current limit...

  • Page 15: Control And Functions

    If the current frequency is lower than HEAT_F4, the frequency will If T4＞41ºF (5ºC) or the capacity demand not be limited. isn’t zero, preheating function will stop. After 10s of the compressor start, if the current>IHEAT, the AC will display the failure for 30 seconds and stop. The AC will restart 3 6.3.12 Compressor crankcase heater ---- minutes later.
  • Page 16 Outdoor temperature (T4) T1 Ts Cooling 84ºF 64ºF ~ 84ºF <25ºC Modify rate 100% When there’re more than one indoor unit -1.8 Outdoor temperature (T4) Cooling ＞77ºF 63ºF ~ 77ºF <63ºF Capacity area Modify rate 100% Note: The final result is integer. Norm code (N) In low ambient cooling mode, modify rate is fixed as 40%.

  • Page 17: Defrosting Action

    Heating mode 4-way valve defrosting Defrosting over compressor Max 10 minutes frequency Cool-F9 frequency Compressor stops TimeA 10S 30S Indoor fan Anti-cold control Outdoor fan According to the final capacity request to EXV open 480P 480P for 240s confirm the operating frequency, as following table.
  • Page 18 ºF ºF High Exit low ambient cooling mode run with high fan for 1 minute low ambient cooling For KSIM20912-H216 (2g), KSIM20912-H216 6.4.3.2 Heating mode For (3g),KSIM330-H219, KSIM40912-H216 (2g): KSIM30912-H216 (2g): DC_FAN_HI_SPD_ADD 82ºF 79ºF DC_FAN_MID_SPD_ADD 77ºF 73ºF DC_FAN_MIN_SPD_ADD 72ºF 68ºF DC_FAN_SLOW_SPD_ADD 66ºF...

  • Page 19: Wiring Diagrams

    6.4.4.2 Heating mode The initial open angle of EXV is 250P, adjustment range is 100-350p.. When the unit start to work 7. Wiring Diagrams 8.1 Wiring diagram of 1 drive 2 outdoor KSIM20912-H216 (2g), KSIM20912-H216 (3g)
  • Page 21 PCB board of KSIM20912-H216 (2g), KSIM20912-H216 (3g)
  • Page 22 IPM board of KSIM20912-H216 (2g)
  • Page 23 IPM board of KSIM20912-H216 (3g)
  • Page 24 8.2 Wiring diagram of 1 drive 3 outdoor KSIM30912-H216 (2g) KSIM330-H219...
  • Page 25 PCB board of KSIM330-H219...
  • Page 26 IPM board of KSIM330-H219...
  • Page 27 PCB board of KSIM30912-H216 (2g)
  • Page 28 IPM board of KSIM30912-H216 (2g)
  • Page 29 8.3 Wiring diagram of 1 drive 4 outdoor KSIM40912-H216 (2g)
  • Page 30 PCB board of KSIM40912-H216 (2g)
  • Page 31 IPM board of KSIM40912-H216 (2g)
  • Page 32 PFC board of KSIM40912-H216 (2g)

  • Page 33: Troubleshooting

    8. Troubleshooting 8.1Safety Because of there are capacitors in PCB and relative circuit in outdoor unit, even shut down the power supply, electricity power still are kept in capacitors, do not forget to discharge the electricity power in capacitor. The value of resistance is about 1500 ohm to 2000 ohm Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) Bulb (25-40W)

  • Page 34: Indoor Unit Error Display

    8.2 Indoor Unit Error Display KWIM series & KWIL ODU Error code series: Display Failure Indoor EEPROM malfunction —— Communication malfunction between indoor and outdoor units —— Zero-crossing signal error Indoor fan speed has been out of control —— Open circuit or short circuit of outdoor temperature sensor or outdoor EEPROM malfunction E0,E4 Open circuit or short circuit of T1 or T2 temperature sensor ——...
  • Page 35 For MCA2I-12HRDN1-M, MCA2I-18HRDN1-M, MUBI-12HRDN1-M, MUBI-18HRDN1-M: Operation Timer De-frost Alarm Failure Open or short circuit of T1 temperature sensor ★ Open or short circuit of T2 temperature sensor ★ Communication malfunction between indoor and outdoor units ★ Water-level alarm malfunction ★ Indoor EEPROM malfunction ★...
  • Page 36 For MTBU-12HRDN1-M, MTBU-18HRDN1-M, MCA2U-12HRFN1-M, MCA2U-18HRFN1-M, MUBU- 12HRFN1-M, MUBU-18HRFN1-M: ODU Error Operatio Display Timer De-frost Alarm Failure code Open or short circuit of T1 temperature sensor —— ★ Open or short circuit of T2 temperature sensor —— ★ Communication malfunction between indoor and ★...

  • Page 37: Outdoor Unit Display

    Inverter module (IPM) malfunction or IGBT over-strong current protection ★ 1 times ★ Voltage(High voltage or low voltage ) protection. ★ 2 times ★ ★ 3 times High temperature protection of compressor top (only for KSIM30912-H216 (2g)) ★ —— ★ 5 times Compressor drive error ★...
  • Page 38 Display Remark Normal display Display running frequency, running state or malfunction code No. of indoor units in good connection Actual data Display Number of indoor unit Outdoor unit running mode code Off:0,Fan only 1, Cooling:2, Heating:3, Forced cooling:4 A indoor unit capacity B indoor unit capacity The capacity unit is horse power.
  • Page 39 AD value of current The display value is hex number. AD value of voltage For example ,the digital display tube show “Cd”, it means AD value is 205. EXV open angle for A indoor unit EXV open angle for B indoor unit Actual data/4.
  • Page 40 8.3.3 Outdoor unit error display Display LED STATUS Error Error Error (MTBI(MTBU)) (KWIM/KWIL) (KWIO) Outdoor EEPROM malfunction Communication malfunction between indoor and outdoor units Communication malfunction between IPM board and outdoor main —— —— —— board Open or short circuit of outdoor temperature sensor(T3、T4、T5、 T2B) Voltage protection ——...

  • Page 41: Diagnosis And Solution

    8.4 Diagnosis and Solution 8.4.1 Indoor unit trouble shooting 8.4.1.1 Indoor EEPROM malfunction diagnosis and solution. Malfunction decision PCB main chip does not receive feedback from EEPROM chip conditions ● Installation mistake ● PCB faulty Trouble shooting: Shut off the power supply and turn it on 1 minute later.
  • Page 42 8.4.1.2 Communication malfunction between indoor and outdoor units diagnosis and solution. Malfunction decision Indoor unit does not receive the feedback from outdoor unit conditions during 120 seconds. Supposed causes ● Wiring mistake ● Indoor or outdoor PCB faulty Trouble shooting:...
  • Page 43 Indoor / outdoor units communication error Start: Power off , then Power on the A/C by the Breaker. (reconnect the power wire). Is it still displaying the error code? Check wiring on the outdoor and indoor terminal follow the wiring diagram. Is all Reconnect the wiring connecting correctly? Reconnect the wiring...
  • Page 44 Pic 1:Use a multimeter to test the DC voltage between L2 port and S port of outdoor unit. The red pin of multimeter connects with L2 port while the black pin is for S port. When AC is normal running, the voltage will move alternately between positive value and negative value.
  • Page 45 PIC3 :Main board LED when power on and unit standby. PIC 4: Check point button, press 1 time for check how many indoor units are connected.(for KSIM20912-H216 (2g), KSIM20912-H216 (3g), KSIM30912-H216 (2g), KSIM330-H219, KSIM40912-H216 (2g)) Check point button, press 18 times for check how many indoor units are connected.(for...
  • Page 46 8.4.1.3 zero-crossing signal error diagnosis and solution. Malfunction decision When PCB does not receive zero crossing signal feedback for conditions 4 minutes or the zero crossing signal time interval is abnormal. Supposed causes ● Connection mistake ● PCB faulty Trouble shooting: Check if the connections and Correct the connections.
  • Page 47 8.4.1.4 Indoor fan speed has been out of control diagnosis and solution. Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, the unit conditions will stop and the LED will display the failure. Supposed causes ● Wiring mistake ●...
  • Page 48 Index 1: 1: Indoor AC fan motor Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply)or 50V(115V power supply), the PCB must have problems and need to be replaced.
  • Page 49 8.4.1.5 open or short circuit of temperature sensor diagnosis and solution. Malfunction decision If the sampling voltage is lower than 0.06V or higher than conditions 4.94V, the LED will display the failure. Supposed causes ● Wiring mistake ● Sensor faulty ●...
  • Page 50 8.4.1.6 IPM module or IGBT over-strong current protection diagnosis and solution. Malfunction decision When the voltage signal that IPM send to compressor drive conditions chip is abnormal, the display LED will show “P6” and AC will turn off. Supposed causes ●...
  • Page 51 IPM module protection Check whether the voltage range Check whether the input Regulate it to correct, then of P-N on IPM module is normal? power supply is correct? check whether the system DC277-356V for 18-27KBtu/h; 208-230V, 1N, 60Hz can work normally? DC277-410V for 36KBtu/h Check whether the connecting Connect it tightly,...
  • Page 52 8.4.1.7 Over voltage or too low voltage protection diagnosis and solution. Voltage protection Check the voltage of outdoor unit power supply, whether the voltage Check the power supply between L(L1) and N (L2) is about 187~253VAC Check whether the voltage of IPM board P and N is normal? DC277-356V for 18-27KBtu/h;...
  • Page 53 8.4.1.8 Temperature protection of compressor top diagnosis and solution. Malfunction decision If the sampling voltage is not 5V, the LED will display the conditions failure. Supposed causes ● Wiring mistake ● Over load protector faulty ● System block ● Outdoor PCB faulty Temperature protection of compressor top Whether compressor...
  • Page 54 Water-level alarm malfunction (For cassette/A5 duct) 8.4.1.10 diagnosis and solution Malfunction decision If the sampling voltage is not 5V, the LED will display the conditions failure. Supposed causes ● Wiring mistake ● Water-level switch faulty ● Water pump faulty ● Indoor PCB faulty Power off, then restart the unit 3 minutes Power off, then restart the unit 3 minutes later.
  • Page 55 8.4.1.11 Mode conflict. Error Code Malfunction decision The indoor units cannot work cooling mode and heating at same time. conditions Heating mode has a priority. Unit action ● Suppose Indoor unit A working in cooling mode or fan mode, and indoor unit B is set to heating mode, then A will change to off and B will work in heating mode.
  • Page 56 8.4.2 Outdoor unit trouble shooting 8.4.2.1 E0(Outdoor EEPROM malfunction) error diagnosis and solution Error Code Malfunction decision PCB main chip does not receive feedback from EEPROM chip conditions Supposed causes ● Installation mistake ● PCB faulty Trouble shooting: Outdoor EEPROM malfunction Outdoor EEPROM malfunction Power off, then restart the Power off, then restart the...
  • Page 57 8.4.2.2 E2(Communication malfunction between indoor and outdoor units) error diagnosis and solution. Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit conditions during 120 seconds or outdoor unit does not receive the feedback from any one indoor unit during 180 seconds. Supposed causes ●...
  • Page 58 Communication malfunction between indoor and outdoor units Start: Power off , then Power on the A/C by the Breaker. (reconnect the power wire). Is it still displaying the error code? Check wiring on the outdoor and indoor terminal follow the wiring diagram. Is all Reconnect the wiring connecting correctly? Reconnect the wiring...
  • Page 59 Pic 1:Use a multimeter to test the DC voltage between L2 port and S port of outdoor unit. The red pin of multimeter connects with L2 port while the black pin is for S port. When AC is normal running, the voltage will move alternately between positive value and negative value.
  • Page 60 Pic 2: :IPM (For qua-zone) Power, Self-Check Operating PIC3 :Main board LED when power on and unit standby. PIC 4: Check point button, press 1 time for check how many indoor units are connected.
  • Page 61 8.4.2.3 E3(Communication malfunction between IPM board and outdoor main board) error diagnosis and Error Code Malfunction decision PCB main chip does not receive feedback from IPM module conditions during 60 seconds. Supposed causes ● Wiring mistake ● PCB faulty Trouble shooting: Communication malfunction between IPM board and outdoor main board Is there at least one LED in...
  • Page 62 Remark: Use a multimeter to test the DC voltage between black pin and white pin of signal wire The normal value should be around 5V. Use a multimeter to test the DC voltage between black pin and red pin of signal wire. The normal value should be around 12V.
  • Page 63 8.4.2.4E4(open or short circuit of outdoor temperature sensor) diagnosis and solution F1/F2/F3/F4/F5 (open or short circuit of indoor coil temperature sensor) diagnosis and solution. Error Code E4/F1/F2/F3/F4/F5 Malfunction decision If the sampling voltage is lower than 0.06V or higher than conditions 4.94V, the LED will display the failure.
  • Page 64 8.4.2.5 E5(Voltage protection) error diagnosis and solution. Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes ● Power supply problems. ● System leakage or block ● PCB faulty Trouble shooting: Voltage protection Check the voltage of...
  • Page 65 IPM (for dual/tri- zone) IPM (for qua- zone) P-N (for dual/tri-zone)
  • Page 66 P-N (for qua-zone)
  • Page 67 bridge rectifier (for dual/tri-zone) bridge rectifier (for qua-zone)
  • Page 68 Remark: Measure the DC voltage between + and - port. The normal value should be 190V~250V.
  • Page 69 8.4.2.6 E6(PFC module protection) error diagnosis and solution. (Only for KSIM40912-H216 (2g)) Error Code Malfunction decision When the voltage signal that PFC sends to main control board conditions is abnormal, the display LED will show “E6” and AC will turn off.
  • Page 70 Inductance Two ports of the inductance...
  • Page 72 8.4.2.7 E8(Outdoor fan speed has been out of control) diagnosis and solution(Only for DC fan motor models). Error Code Malfunction decision When outdoor fan speed keeps too low (300RPM) or too high(2400RPM) conditions for certain time, the unit will stop and the LED will display the failure. Supposed causes ●...
  • Page 73 Index 1: 1. DC fan motor(control chip is inside fan motor)  Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must have problems and need to be replaced.
  • Page 75 8.4.2.8 P0(Temperature protection of compressor top) error diagnosis and solution. (Only for KSIM30912-H216 (2g)) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions ● Wiring mistake Supposed causes ● Over load protector faulty ●...
  • Page 77 8.4.2.9 P1(High pressure protection) error diagnosis and solution. (Only for KSIM40912-H216 (2g)) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the conditions failure. Supposed causes ● Wiring mistake ● Over load protector faulty ●...
  • Page 78 High pressure protection High pressure protection Whether the wiring Whether the wiring between the high pressure between the high pressure switch and main control switch and main control Connect it well Connect it well board is connected well or board is connected well or correctly correctly Whether the high...
  • Page 80 8.4.2.10 P2(Low pressure protection) error diagnosis and solution. (Only for KSIM40912-H216 (2g)) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the conditions failure. Supposed causes ● Wiring mistake ● Over load protector faulty ●...
  • Page 81 Low pressure protection Low pressure protection Whether the wiring Whether the wiring between the low pressure between the low pressure protector and main control protector and main control Connect it well Connect it well board is connected well or board is connected well or correctly correctly Whether the low...
  • Page 83 8.4.2.11 P3(Current protection of compressor) error diagnosis and solution. Error Code Malfunction decision If the outdoor current exceeds the current limit value, the LED conditions will display the failure. Supposed causes ● Wiring mistake ● Over load protector faulty ● System block ●...
  • Page 85 8.4.2.12 P4(Temperature protection of compressor discharge) error diagnosis and solution. Error Code Malfunction decision When the compressor discharge temperature(T5) is more conditions than 239ºF (115ºC) for 10 seconds, the compressor will stop and restart till T5 is less than 194ºF (90ºC). Supposed causes ●...
  • Page 86 8.4.2.13 P5(High temperature protection of condenser) error diagnosis and solution. Error Code Malfunction decision When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor pipe temperature is less conditions than 52°C Supposed causes ●...
  • Page 87 8.4.2.14 P6(IPM module protection) error diagnosis and solution. Error Code Malfunction decision When the voltage signal that IPM send to compressor drive conditions chip is abnormal, the display LED will show “P6” and AC will turn off. Supposed causes ● Wiring mistake ●...
  • Page 88 IPM module protection Check whether the voltage range Check whether the input Regulate it to correct, then of P-N on IPM module is normal? power supply is correct? check whether the system DC277-356V for 18-27KBtu/h; 208-230V, 1N, 60Hz can work normally? DC277-410V for 36KBtu/h Check whether the connecting Connect it tightly,...
  • Page 89 8.4. 2.15 The cooling operation or heating operation does not operate. Supposed causes ● 4-way valve faulty Check of 4-way, please refer to part 5 in 9.5 Trouble Criterion Of Main Parts. 8.4.2.16 When cooling, heat exchanger of non-operating indoor unit frosts. When heating, non-operating indoor unit get warm.

  • Page 90: Trouble Criterion Of Main Parts

    MUBU-18HRFN1-M Indoor fan motor YSK25-6L YSK25-6L WZDK55-38GS-W WZDK55-38GS-W Model MFAI-12HRDN1-M MFAU-12HRFN1-M Indoor fan motor RD-280-20-8A RD-280-20-8A Outdoor unit Model KSIM20912-H216 (2g) KSIM30912-H216 (2g) KSIM330-H219 KSIM40912-H216 (2g) KSIM20912-H216 (3g) Compressor DA130S1C-20FZ DA150S1C-20FZ DA250S2C-30MT TNB306FPGMC-L Outdoor fan motor WZDK50-38G YDK53-6FB(B) WZDK72-38G WZDK180-38G...
  • Page 91 1.Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 92 Appendix 1 Temperature Sensor Resistance Value Table (℃--K) K Ohm K Ohm K Ohm K Ohm ºF ºF ºF ºF 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5000 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865 10.4736 2.03732 0.56038 84.2190 10.000 1.96532...
  • Page 93 Appendix 2 Unit: ºC-K Discharge temp. sensor table 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37 11.79 3.296 406.7 54.89 11.38 3.203 384.3 52.53 10.99 3.113 363.3 50.28 10.61 3.025 343.6 48.14 10.25 2.941...
  • Page 94 Appendix 3: 10 11 12 13 14 15 16 17 18 19 20 21 22 ºC 48 50 52 54 56 58 60 62 64 66 68 70 72 ℉ 23 24 25 26 27 28 29 30 31 32 33 34 35 ºC 74 76 78 80 82 84 86 88 90 92 94 96 98 ℉...
  • Page 95 3.IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Normal Normal resistance Digital tester Digital tester resistance value value...
  • Page 96 Position Resistance Value YDK53- YDK70-6FB YDK180-8GB YSK27-4G YSK68-4B YDK45-6B YSK25-6L 6FB(B) 56Ω±8% 24.5Ω±8% 317Ω±8% 145Ω±8% 345Ω±8% 627Ω±8% 88.5Ω±8% Black - (68ºF) (68ºF) (68ºF) (68ºF) (68ºF) (68ºF) (68ºF) 76Ω±8% 19Ω±8% 252Ω±8% 88Ω±8% 150Ω±8% 374.3Ω±8% 138Ω±8% Red - (68ºF) (68ºF) (68ºF) (68ºF) (68ºF) (68ºF) Yellow...
  • Page 97 6.EXV check Disconnect the connectors.
  • Page 98 Resistance to EXV coil Color of lead wire Normal Value Red- Blue Red - Yellow About 50Ω Brown-Orange Brown-White...
  • Page 99 Red- Blue Red - Yellow...
  • Page 100 Brown-Orange Brown-White...

  • Page 101: Disassembly Instructions

    9. Disassembly Instructions  Model: KSIM20912-H216 (2g), KSIM20912-H216 (3g) (W210 metal plate) Part name Procedures Remarks How to remove the panel plate. Screws of top cover Panel plate 1) Stop operation of the air conditioner and turn “OFF” the power breaker.
  • Page 102 5) Remove the screws of big handle, and remove the big Screws of handle.(4 screws) big handle 6) Remove two screws of terminal board, four screws of water collector and Screws of water collector fourteen screws of right- rear panel, and remove the Screws of right-rear panel.
  • Page 103 4) Remove the electrical ④ control box cover. 5) Disconnect the fan motor connector CN37(5p,white) from the PCB board. ⑤ Remove the fan motor after unfastening four fixing screws. ⑥ How to remove the electrical Electrical ③ parts. parts 1) Perform work of item 1,2. 2) Remove the ten screws fixing the IPM board.
  • Page 104 CN38(2p,white) CN21(5p,white) CN39(2p,blue) L-OUT(red) N-OUT(blue) CN17 Remove the IPM board. CN15 Disconnect the connectors and wires connected from PCB and other parts. Connectors: CN25/CN23 CN18/CN19 CN17:T3/T4 temp. sensor (2p/2p,white) CN7: Tdischarge temp. sensor (2p,white) CN15:T2B-A,B temp. sensor (2p/2p,white) CN18/CN19: Electronic expansive valve A,B (6p/6p,red/red) CN25/CN23: S-A,S-B CN5/CN6...
  • Page 105 Disconnect the grounding ⑧ wire (yellow-green) after removing the big handle and the right-rear panel. Remove the PCB board. How to remove the compressor. Compressor 1) Perform work of item 1,2,3. 2) Remove the electrical control box and partition plate. 3) Extract refrigerant gas.
  • Page 106 Reactor How to remove the reactor 1) Perform work of item 1,2 2) Unfasten the connector between IPM and reactor. 3) Remove two screws of cover of inductance, and remove the cover of inductance Screws of cover of inductance 4) Disconnect two pieces of wires connected from the cover of inductance.
  • Page 107  Model: KSIM30912-H216 (2g) (W210 metal plate) Part name Procedures Remarks How to remove the panel plate. Panel plate Screws of top cover 1) Stop operation of the air conditioner and turn “OFF” the power breaker. 2) Remove the screws of top cover, and remove the top cover.
  • Page 108 Screws of big handle Screws of right-rear panel Screws of water collector Screws of terminal board How to remove the fan ass’y. Fan ass’y 1) Remove the top cover, right front side panel and front panel from item 1.step 1~4 2) Remove the hex nut fixing the fan.
  • Page 109 ④ 5) Disconnect the fan motor connector CN11(5p,white) from the PCB board. ⑤ 6) Remove the fan motor after unfastening six fixing screws. Note: There are two kinds of screws. Please pay attention to it when install the fan motor. ⑥...
  • Page 110 Disconnect following 3 pieces of connection wires and connectors between IPM and PCB. CN21(5p,white) L-OUT(red) N-OUT(blue) Remove the IPM board. ⑥ CN18/CN19/CN22 CN17 Disconnect connectors and wires connected from PCB and other parts. Connectors: CN17:T3/T4 temp. sensor (2p/2p,white) CN7: Tdischarge temp. sensor (2p,white) CN12:Ttop temp.
  • Page 111 CN4:L2-IN (black) Disconnect the grounding wire (yellow-green) CN20/ CN23/ after removing the big handle CN25 and the right-rear panel. Remove the PCB board. CN1/CN2 CN5/CN6 ⑧ How to remove the compressor. Compressor 1) Perform work of item 1,2,3. 2) Remove electrical control box and partition plate.
  • Page 112 washers fixing compressor to bottom plate. ⑦ 8) Lift the compressor. Reactor How to remove the reactor 1) Perform work of item 1,2 2) Unfasten connector between IPM and reactor. 3) Remove screws cover of inductance, and remove cover inductance Screws of cover of inductance...
  • Page 113 How to remove the expansion expansion valve valve 1) Perform work of item 1,2. 2) Remove the electrical parts from item 3. Expansion valves 3) Remove the coils. 4) Detach the welded parts of . Coils expansion valves and pipes.
  • Page 114  Model: KSIM330-H219 (W310 metal plate) Part name Procedures Remarks How to remove the panel plate. Screws of top cover Panel plate 1) Stop operation of the air conditioner and turn “OFF” the power breaker. 2) Remove the screws of top cover, and remove the top cover.
  • Page 115 Screws of top cover Screws of right- rear panel Screws of front panel...
  • Page 116 How to remove the fan ass’y. Fan ass’y 1) Remove the top cover, right front side panel and front panel from item 1.step 1~4 2) Remove the hex nut fixing ② the fan. 3) Remove the fan. 4) Remove electrical ④...
  • Page 117 Disconnect following 5 ④ pieces of connection wires and connectors between IPM and PCB. L-OUT(red) N-OUT(blue) CN38(2p,white) CN21(5p,white) CN39(2p,blue)
  • Page 118 Remove the IPM board. ⑥ 7) Disconnect the connectors and wires connected from PCB and other parts. Connectors: CN17:T3/T4 temp. sensor (2p/2p,white) CN7: Tdischarge temp. sensor CN17 (2p,white) CN15:T2B-A,B,C temp. sensor (2p/2p/2p,white) CN18/CN19/CN22: Electronic expansive valve A,B,C (6p/6p/6p,red/red/red) CN25/CN23/CN20: S-A,S-B,S-C (3p/3p/3p,white/white/white) CN15 CN18/CN19/CN22...
  • Page 119 ⑧ How to remove the compressor. Compressor 1) Perform work of item 1,2,3. 2) Remove electrical control box and partition plate. 3) Extract refrigerant gas. 4) Remove sound ⑥ insulation material crankcase heating cable. 5) Remove terminal cover of compressor, and disconnect wires of compressor thermo and compressor from the terminal.
  • Page 120 Reactor How to remove the reactor Screws of cover of 1) Perform work of item 1,2 inductance 2) Unfasten the connector between IPM and reactor. 3) Remove four screws cover of inductance, and remove cover inductance 4) Disconnect two pieces of wires connected from the cover of inductance.
  • Page 121 How to remove the expansion expansion valve valve 1) Perform work of item 1,2. 2) Remove the electrical parts from item 3. Expansion 3) Remove the coils. valves 4) Detach the welded parts of expansion valves and pipes. . Coils...
  • Page 122  Model: KSIM40912-H216 (2g) (W520 metal plate) Part name Procedures Remarks How to remove the panel plate. Screws of top cover Panel plate 1) Stop operation of the air conditioner and turn “OFF” the power breaker. Screws of front panel Screws of right front side panel 2) Remove the screws of top Screws of top cover...
  • Page 123 Screws of big handle Screws of right- rear panel Screws of water collector Screws of terminal board...
  • Page 124 How to remove the fan ass’y. Fan ass’y 1) Remove the top cover, right front side panel and front panel from item 1.step 1~4 ② 2) Remove the hex nut fixing the fan. 3) Remove the fan. 4) Remove the electrical control box cover after remove 5 screws.
  • Page 125 ③ 4) Disconnect following connection wires and connectors on the PFC. C and CN12: (yellow-yellow), connected to PFC inductance. R and CN12: (blue-red), CN12 CN12 ⑤ connected to rectifier. + and - : (red-blue), connected to P1 and P3 on PCB. CN7: (4p,red), connected to CN11 on PCB.
  • Page 126 7) Disconnect following connection wires and connectors between PCB and other components. P4: (blue), connected to N on IPM. P2: (red), connected to P on IPM. P1: (red), connected to + on PFC. P3: (blue), connected to – on PFC. RY4: (red), connected to rectifier.
  • Page 127 grounding wires of PCB. Remove the PCB board. ⑧ How to remove the compressor. ⑥ Compressor 1) Perform work of item 1,2,3 2) Remove electrical control box and partition plate. 3) Extract refrigerant gas. 4) Remove sound insulation material crankcase heating cable. 5) Remove terminal cover of compressor, and disconnect wires of compressor thermo...
  • Page 128 4-way How to remove the 4-way valve valve 1) Perform work of item 1,2. 2) Extract refrigerant gas. 3) Remove the electrical parts Coil from item 3. 4) Remove fixing screw of the coil, and remove the coil. Welded parts 5) Detach the welded parts of 4-way valve and pipe.
  • Page 129 The Klimaire logo is a registered Trademark of Klimaire Products inc. Copyright 2016 Klimaire Products Inc. 2190 NW 89 Place, Doral, FL 33172 - USA Tel: (305)593-8358 Fax (305) 675-2212 www.klimaire.com sales@klimaire.com The design and specifications are subject to change without prior notice for product...

This manual is also suitable for:

Ksim30912-h216Ksim330-h219Ksim40912-h216

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