ComfortStar CIM Series Service Manual
  1. Manuals
  2. Brands
  3. ComfortStar Manuals
  4. Air Conditioner
  5. CIM Series
  6. Service manual

ComfortStar CIM Series Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Service Manual
CIM,CII SERIES
MODEL
CIM09CD CIM12CD
CII12CA
CIM18CD
CII24CD
CII30CD
CCI36CD
Version:CIM CII1709A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CIM Series and is the answer not in the manual?

Questions and answers

Related Manuals for ComfortStar CIM Series

Summary of Contents for ComfortStar CIM Series

  • Page 1 Service Manual CIM,CII SERIES MODEL CIM09CD CIM12CD CII12CA CIM18CD CII24CD CII30CD CCI36CD Version:CIM CII1709A...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution ........................1 1.2 Warning ............................1 2. Model List ..............................4 3. Dimension ..............................5 3.1 Indoor Unit ........................... 5 3.2 Outdoor Unit ..........................8 4. Refrigerant Cycle Diagram ........................13 5 Installation Details ............................16 5.1 Wrench torque sheet for installation ..................

  • Page 3: Precaution

    installing the product. Sharp edges could cause injury, be especially 1. Precaution careful of the case edges and the fins on the condenser and evaporator. 1.1 Safety Precaution ◼ For installation, always contact the dealer or an authorized service center. ◼...
  • Page 4 from product, turn the breaker off or water is drained away properly. disconnect the power supply cable. A bad connection may cause water leakage. ◼ There is risk of electric shock or fire. Keep level even when installing the ◼ Stop operation and close the window product.
  • Page 5 through air inlet or outlet while the product is operated. ◼ Do not drink the water drained from the product. ◼ Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury. ◼ Replace the all batteries in the remote control with new ones of the same type.

  • Page 6: Model List

    2. Model List Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units CIM09CD(I) CIM09CD(O) CII12CA(I) CII12CA(O) CIM12CD(I) CII12CD(O) Inverter CIM18CD(I) CIM18CD(O) CII24CD(I) CII24CD(O) CII30CD(I) CII30CD(O) CCI36CD(I) CCI36CD(O)

  • Page 7: Dimension

    3. Dimension 3.1 Indoor Unit Model CIM09CD(I) CII12CA(I) CIM12CD(I) CIM18CD(I) CII24CD(I) 1080 CII30CD(I) 1259 CCI36CD(I) 1259...
  • Page 8 For CIM09CD(I), For CII12CA(I), CIM12CD(I),...
  • Page 9 For CIM18CD(I), For CII24CD(I), For CII30CD(I), CCI36CD(I),...

  • Page 10: Outdoor Unit

    3.2 Outdoor Unit More than 30cm More than 60cm (Service space) More than 30cm More than 60cm More than 200cm...
  • Page 11 For CIM09CD(O), CII12CA(O), CIM12CD(O) 779 W3 487 W1 300 D 770 W 70 W2 25 B1 61.5 A2 12 A1...
  • Page 12 For CIM18CD(O), 815 W3 514 W1 333 D 800 W 70 W2 62 B1 D2 D3 20 A1 61.6 A2...
  • Page 13 For CII24CD(O),...
  • Page 14 For CII30CD(O), CCI36CD(O), 1030 W1 946 W 810 H 810 H 455 D3 673 A 403B 455D3 410 D 57 H1 117 H2...

  • Page 15: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram For cooling only models: INDOOR OUTDOOR LIQUID SIDE T3 Condenser CAPILLARY TUBE temp. sensor HEAT EXCHANGE (EVAPORATOR) HEAT T1 Room temp. T4 Ambient EXCHANGE sensor temp. sensor (CONDENSER) T2 Evaporator temp. sensor T5 Discharge temp. sensor GAS SIDE ACCUMULATOR COMPRESSOR...
  • Page 16 For heat pump models: INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE T3 Condenser temp. sensor CAPILLARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. T4 Ambient sensor temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE T5 Discharge...
  • Page 17 CII30CD(I),CCI36CD(I), INDOOR OUTDOOR Electronic CAPILLARY expansion valve LIQUID SIDE tube 2-WAY VALVE T3 Condenser temp. sensor HEAT HEAT T4 Ambient T1 Room temp. EXCHANGE EXCHANGE temp. sensor sensor (CONDENSER) (EVAPORATOR) T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE Accumulator T5 Discharge temp.

  • Page 18: Installation Details

    5 Installation Details 5.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 6500(663kgf.cm) 6700(683kgf.cm) 5.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Rated current of appliance Nominal cross-sectional area (mm²) >3 and ≤6...

  • Page 19: Pipe Length And The Elevation

    5.3 Pipe length and the elevation The pipe length and refrigerant amount: Pipe size Standard Max. Max. Additional Model length Elevation Length refrigerant B (m) A (m) (g/m) Liquid 3/8’’ 1/4’’ CIM09CD(I)+CIM09CD(O) (Ф9.52) (Ф6.35) 1/2’’ 1/4’’ CII12CA(I)+CII12CA(O) (Ф12.7) (Ф6.35) 1/2’’ 1/4’’...

  • Page 20: Installation For The First Time

    connection to the vacuum pump. 5.4 Installation for the first time 4) Fully open the handle Lo of the manifold valve. Air and moisture in the refrigerant system have 5) Operate the vacuum pump to evacuate. undesirable effects as below: 6) Make evacuation for 30 minutes and check ●...

  • Page 21: Adding The Refrigerant After Running The System For Many Years

    3). Air purging. liquid charge. Open the valves on the charging cylinder and the 2). Purge the air from the charge hose. charge set. Purge the air by loosening the flare Open the valve at the bottom of the cylinder nut on the 2-way valve approximately 45’...

  • Page 22: Re-Installation While The Outdoor Unit Need To Be Repaired

    Be sure to use a hexagonal wrench to operate the tighten the flare nut on the 2-way valve. valve stems. 4). Check the gas leakage 2). Connect the charge hose with the push pin of Check the flare connections for gas leakage. handle lo to the 3-way valves gas service port.
  • Page 23 minutes after turning off the vacuum pump). turn off the air conditioner before disconnecting 5). Disconnect the charge hose from the vacuum the hose. pump. 6). Mounted the valve stem caps and the service port. Use torque wrench to tighten the service 2.

  • Page 24: Wiring Diagrams

    6. Wiring Diagrams 6.1 Indoor Unit CII12CA(I), CIM09CD(I), CIM12CD(I) ’ CII30CD(I), CCI36CD(I), CIM18CD(I)
  • Page 25 CII24CD(I)

  • Page 26: Outdoor Unit

    6.2 Outdoor Unit CIM09CD(O), CIM12CD(O),...
  • Page 27 CII12CA(O).
  • Page 28 CIM18CD(O), CII24CD(O)
  • Page 29 CII30CD(O), CCI36CD(O)

  • Page 30: Operation Characteristics

    7. Operation Characteristics Mode Cooling operation Heating operation Drying operation Temperature Room temperature 17℃~32℃ 0℃~30℃ 10℃~32℃ (62℉~90℉) (32℉~86℉) (50℉~90℉) Outdoor temperature 0℃~50℃ -15℃~30℃ 0℃~50℃ (32℉~122℉) (5℉~86℉) (32℉~122℉) -15℃~50℃ (5℉~122℉) (For the models with low temperature cooling system) CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally.

  • Page 31: Electronic Function

    Dispalys ‘ ’ during self clean operation (if 8. Electronic function aplicable). 8.1 Abbreviation Dispalys ‘ ’ under 8℃ heating operation (if T1: Indoor room temperature aplicable). T2: Coil temperature of evaporator When ECO function(optional) is actived,the T3: Coil temperature of condenser “...

  • Page 32: Main Protection

    stop working. 8.3 Main Protection 8.3.1 Three minutes delay at restart for 8.3.9 Refrigerant leakage detection compressor This function is only active in cooling mode. It 1 minute delay for the 1 time start-up and 3 can better prevent the compressor being minutes delay for others.

  • Page 33: Operation Modes And Functions

    8.4 Operation Modes and Functions 8.4.1 Fan mode ( 1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates same as in cooling mode.
  • Page 34 8.4.3.1 Compressor running rules T1-TS When T1-Ts>-ΔT, the compressor will stop, <ΔT-1.5， the compressor will be on. when T1-T ΔT is the programmed parameter of temperature compensation. When the AC run in mute mode, the compressor will run with low frequency. When the current is more than setting value, the current protection function will be activated and the compressor will stop.
  • Page 35 wind function has the priority. protection The indoor fan is controlled as below: Td=Ts+Δt Setting fan T1-Td ℃(°F) Actual fan speed speed TEstop H+(H+=H+G) H（=H） Decrease TEdown H-（H-=H-G) Hold M+(M+=M+Z) TEH2 M(M=M) Resume M-(M-=M-Z) L+(L+=L+D) L(L=L) Off: Compressor stops. L-(L-=L-D) Decrease: Decrease the running frequency to Auto fan action in heating mode: the lower level.
  • Page 36 When cooling, the setting temperature rises 1℃ 8.4.6 Forced operation function (be lower than 30℃) every one hour, 2 hours Forced cooling mode: later the setting temperature stops rising and The compressor and outdoor fan keep running the indoor fan is fixed at low speed. and the indoor fan runs at low speed.
  • Page 37 of the louver. During operation, if the power fails signal, but it will not affected by the setting or the end user shuts down the unit in the turbo temperature. mode, the louver will restore to the default When the unit is running with follow me function, if the PCB doesn’t receive any signal angle.
  • Page 38 8.4.16 Point check function Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds.
  • Page 39 When the AC enter into the information enquiry status, it will display the code value in the next 25s , the details are as follows. Enquiry Display value Meaning Remark information T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A value.

  • Page 40: Troubleshooting

    9. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.

  • Page 41: Indoor Unit Error Display

    9.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error ☆ 2 times Indoor / outdoor units communication error ☆ 3 times Zero-crossing signal detection error ☆ 4 times Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short ☆...
  • Page 42 Trouble shooting: Use the remote controller. If the unit does not respond to the remote, the indoor PCB needs to be replaced; if the unit does respond, then the display board needs to be replaced.

  • Page 43: Diagnosis And Solution

    9.2 Diagnosis and Solution 9.2.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: Power off, then restart the unit 2 minutes later.
  • Page 44 9.2.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously. Supposed causes Wiring mistake ● Indoor or outdoor PCB faulty ●...
  • Page 45 Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter connects with 2 port while the black pin is for 3 port. When AC is normal running, the voltage will move alternately between -25V to 25V.
  • Page 46 9.2.3 Zero crossing detection error diagnosis and solution (E2) Error Code Malfunction decision When PCB does not receive zero crossing signal feedback for 4 conditions minutes or the zero crossing signal time interval is abnormal. Supposed causes Connection mistake ● PCB faulty ●...
  • Page 47 9.2.4 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, conditions the unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 48 Index 1: 1:Indoor or Outdoor DC Fan Motor(control chip is in 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 has problems and need to be replaced.
  • Page 49 9.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 50 9.2.6 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temperatureT2 of the compressor just conditions starts running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ＜Tcool－2 °C( Tcool－35.6 °F) does not keep continuous 4 seconds and this situation happens 3 times, the display area will show “EC”...
  • Page 51 9.2.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified conditions current detection circuit. Supposed causes Power supply problems. ● System blockage ● PCB faulty ● Wiring mistake ● Compressor malfunction ●...
  • Page 52 9.2.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off. conditions Supposed causes Wiring mistake ●...
  • Page 53 For example: Note: The photos below are only for reference, it’s may be not same totally with the ones on your side.
  • Page 56 For 30K~36K: At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Check whether the power voltage Restart the unit when the power supply Check whether the power voltage...
  • Page 57 9.2.8 Over voltage or too low voltage protection diagnosis and solution(P1) 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 ●...
  • Page 58 9.2.9 High temperature protection of IPM module diagnosis and solution(P2) Error Code Malfunction decision If the temperature of IPM module is higher than limited value, the conditions LED will display the failure. Supposed causes IPM radiator problem ● PCB faulty ●...
  • Page 59 9.2.10 Inverter compressor drive error diagnosis and solution(P4) Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Supposed causes Wiring mistake ●...
  • Page 60 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. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red (-)Black...
  • Page 61 For 30K~36K: At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Check whether the power voltage Restart the unit when the power supply Check whether the power voltage...
  • Page 62 9.2.11 Low pressure protection diagnosis and solution(P6) Error Code Malfunction decision When the pressure of system reach a certain value, the low conditions pressure protector will switch off. After the pressure resume to normal ,the protection code will disappear. Supposed causes Wiring mistake ●...
  • Page 63 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temperature(T1) sensor, Indoor coil temperature(T2) sensor, Outdoor coil temperature(T3) sensor, Outdoor ambient temperature(T4) sensor, Compressor discharge temperature(TP) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 64 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (°C--K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 88.5865...
  • Page 65 Appendix 2 Temperature Sensor Resistance Value Table for TP (°C --K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 58.98 12.21 3.392 430.5...
  • Page 66 Appendix 3: °C °F °C °F °C °F °C °F °C °F 68.8 123.8 178.6 235.4 24.8 71.6 125.6 181.4 237.2 26.6 73.4 127.4 183.2 28.4 75.2 128.2 240.8 30.2 186.8 242.6 25.5 77.9 132.8 188.6 244.4 32.9 78.8 134.6 190.4 246.2 33.8...
  • Page 67 Appendix 4 Normal voltage of P and N 208-240V(1-phase,3-phase) 380-420V(3-phase) In standby around 310VDC around 530VDC In operation With passive PFC With partial active With fully active module PFC module PFC module >200VDC >310VDC >370VDC >450VDC...
  • Page 68 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT Blue - Red 1.75 Ω 0.75 Ω 0.75 Ω 1.57Ω Blue - Black Red - Blue...

This manual is also suitable for:

Cii seriesCim09cdCim12cdCii12caCim18cdCii24cd ... Show all

Table of Contents