Carrier XPOWER SAFIRUS Service Manual
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Carrier XPOWER SAFIRUS Service Manual

15c inverter
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Service Manual
XPOWER BLUE / XPOWER SAFIRUS
This manual apply to the models below:
15C Inverter
42KHC009DS/38KHC009DSP
42KHC012DS/38KHC012DSP
42KHC018DS/38KHC018DSP
42KHC024DS/38KHC024DSP
42QHC009ESW/ 38QHC009ESWP
42QHC012ESW/ 38QHC012ESWP
42QHC018DSW/38QHC018DSWP

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Summary of Contents for Carrier XPOWER SAFIRUS

  • Page 1 Service Manual 15C Inverter XPOWER BLUE / XPOWER SAFIRUS This manual apply to the models below: 42KHC009DS/38KHC009DSP 42KHC012DS/38KHC012DSP 42KHC018DS/38KHC018DSP 42KHC024DS/38KHC024DSP 42QHC009ESW/ 38QHC009ESWP 42QHC012ESW/ 38QHC012ESWP 42QHC018DSW/38QHC018DSWP...
  • Page 2 42QHC024DSW/38QHC024DSWP...

  • Page 3: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution.......................... 1 1.2 Warning ............................1 2. Function................................ 4 3. Dimension ..............................5 3.1 Indoor Unit............................. 5 3.2 Outdoor Unit..........................7 4. Wiring Diagram ............................8 5. Refrigerant Cycle Diagram ........................12 6. Installation Details ............................. 13 6.1 Wrench torque sheet for installation ...................

  • Page 4: 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 5 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 6 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 7: Function

    2. Function Models for Indoor/Outdoor Units Capacity Indoor units Outdoor units 42KHC009DS 38KHC009DSP 42QHC009ESW 38QHC009ESWP 42KHC012DS 38KHC012DSP 42QHC012ESW 38QHC012ESWP 42KHC018DS 38KHC018DSP 42QHC018DSW 38QHC018DSWP 42KHC024DS 38KHC024DSP 42QHC024DSW 38QHC024DSWP 2 ways of drainage Dust Filter Heathy filter Louver Position Memory Function Golden Fin Refrigerant Leakage Detect Self-cleaning Self-diag.

  • Page 8: Dimension

    3. Dimension 3.1 Indoor Unit Model 42KHC009DS 42KHC012DS 42QHC009ESW 42QHC012ESW 42KHC018DS 42QHC018DSW 42KHC024DS 1082 42QHC024DSW Installation plate: 42KHC009DS:...
  • Page 9 42KHC012DS / 42QHC009ESW / 42QHC012ESW 42KHC018DS / 42QHC018DSW 42KHC024DS / 42QHC024DSW...

  • Page 10: Outdoor Unit

    3.2 Outdoor Unit Mounting Dimension(mm) Outdoor Unit Dimension(mm) Outdoor Unit 38KHC009DSP 38KHC012DSP 38KHC018DSP 38QHC009ESWP 38QHC012ESWP 38KHC024DSP 38QHC024DSWP...

  • Page 11: Wiring Diagram

    Wiring Diagram Indoor: 42KHC009DS / 42KHC012DS Indoor: 42KHC018DS...
  • Page 12 Indoor: 42KHC024DS Outdoor 38KHC009DSP / 38KHC012DSP...
  • Page 13 Outdoor 38KHC018DSP / 38KHC024DSP Indoor: 42QHC009ESW / 42QHC012ESW / 42QHC018DSW / 42QHC018DSW...
  • Page 14 Outdoor 38QHC009ESWP / 38QHC012ESWP Outdoor 38QHC018DSWP / 38QHC024DSWP...

  • Page 15: Refrigerant Cycle Diagram

    5. Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR HEATING...

  • Page 16: Installation Details

    6. Installation Details 6.1 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) 6.2 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 17: Pipe Length And The Elevation

    6.3 Pipe length and the elevation The pipe length and refrigerant amount: Standard Max. Max. Additional Pipe size Model length Elevation Length refrigerant Liquid B (m) A (m) (g/m) 38KHC009DSP 38KHC012DSP 3/8’’(Ф9.52) 1/4’’(Ф6.35) 38QHC009ESWP 38QHC012ESWP 38KHC018DSP 1/2’’(Ф12.7) 1/4’’(Ф6.35) 38QHC018DSWP 38KHC024DSP 5/8’’(Ф15.9) 3/8’’(Ф9.52) 38QHC024DSWP...

  • Page 18: Installation For The First Time

    connection to the vacuum pump. 6.4 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 19: Adding The Refrigerant After Running The System For Many Years

    disconnected from the vacuum pump to the liquid charge. valve at the bottom of the cylinder. If the 2). Purge the air from the charge hose. refrigerant is R410A, make the cylinder bottom Open the valve at the bottom of the cylinder up to ensure the liquid charge.

  • Page 20: Re-Installation While The Outdoor Unit Need To Be Repaired

    Be sure to use a hexagonal wrench to operate the turn off the vacuum pump, and confirm that the valve stems. gauge needle does not move (approximately 5 2). Connect the charge hose with the push pin of minutes after turning off the vacuum pump). handle lo to the 3-way valves gas service port.
  • Page 21 If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air conditioner before disconnecting the hose. 6). Mounted the valve stem caps and the service port. Use torque wrench to tighten the service port cap to a torque of 18N.m.

  • Page 22: Operation Characteristics

    7. Operation Characteristics Mode Cooling operation Heating Temperature operation Room temperature 18℃~32℃ 0℃~27℃ Outdoor temperature -15℃~46℃ -15℃~24℃ (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 23: Electronic Function

    Dispalys ‘ ’ under deforsting operation. 8. Electronic function Dispalys ‘ ’ when anti-cold air feature is 8.1 Abbreviation activated under heating mode. T1: Indoor room temperature Dispalys ‘ ’ during self clean operation (if T2: Coil temperature of evaporator aplicable).

  • Page 24: Main Protection

    stop working. 8.3 Main Protection 8.3.1 Three minutes delay at restart for compressor 8.3.9 Refrigerant leakage detection 1 minute delay for the 1 time stand-up and 3 This function is only active in cooling mode. It minutes delay for others. can better prevent the compressor being 8.3.2 Temperature protection of compressor damaged by refrigerant leakage or compressor...

  • Page 25: 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 26 TP3+5 Decrease Hold TP3-3 Resume 8.4.3.3 Indoor fan running rules When the compressor is on, the indoor fan can ---TP3<T3< TP3+5, the compressor frequency be set to high/med/low/auto. And the anti-cold will decrease to the lower level until to F1 and wind function has the priority.
  • Page 27 normal heating mode. machine will choose running function again. ----T3 rises to be higher than TCDE1℃. ----T3 keeps to be higher than TCDE2℃ for 80 8.4.5 Drying mode seconds. Indoor fan speed is fixed at breeze and can’t be ----The machine has run for 15 minutes in changed.
  • Page 28 8.4.7.8 The AC will quit the timer function when it has malfunction. 8.4.11 Louver Position Memory Function When starting the unit again after shutting down, 8.4.8 Economy function its louver will restore to the angle originally set 8.4.8.1 The sleep function is available in by the user, but the precondition is that the cooling, heating or auto mode.
  • Page 29 sensor will be still valid. When the follow me function is available, the PCB will control the unit according to the room temperature from the remote controller and the setting temperature. The PCB will take action to the mode change information from remote controller signal, but it will not affected by the setting temperature.
  • Page 30 8.4.16 Point check function Press the LED or silence 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. The air conditioner will enter into the information enquiry status. You can press the LED DISPLAY or AIR DIRECTION button to check the next or front item’s information.
  • Page 31 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. Targeted 2. All the temperature is °C no matter what -19—99 -19—99 Frequency, kind of remote controller is used. A0,A1,…A9 100,101,…109 Actual 3.

  • Page 32: 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 33: 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 ☆ 4 times Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short ☆...

  • Page 34: Trouble Shooting

    9.2 Trouble shooting 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: EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
  • Page 35 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 36 Remark: Use a multi meter to test the resistance of the reactor which does not connect with capacitor.
  • Page 37 9.2.3 Fan speed has been out of control diagnosis and solution(E3) 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 38 Index1: 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 39 9.2.4 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and this situation happens 3 times, the display area will show “EC”...
  • Page 40 9.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) 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 41 9.2.6 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 conditions is abnormal, the display LED will show “P0” and AC will turn off. Supposed causes Wiring mistake ●...
  • Page 42 9.2.7 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 43 9.2.8 High temperature protection of compressor top diagnosis and solution(P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes Power supply problems. ● System leakage or block ● PCB faulty ●...
  • Page 44 9.2.9 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 45 Main parts check 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 46 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 89.5865...
  • Page 47 Appendix 2 Temperature Sensor Resistance Value Table for T5 (°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 59.98 12.21 3.392 430.5...
  • Page 48 2. Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value Model 38KHC009DSP 38KHC012DSP 38KHC018DSP 38KHC024DSP 38QHC009ESWP 38QHC018DSWP 38QHC024DSWP 38QHC012ESWP Compressor ASK89D53UEZ ASN98D22UFZ ASM135D23UFZ ATM150D23UFZ Model Blue - Red 2.35Ω 1.57Ω 1.72Ω 1.72Ω Blue - Black (20℃/68℉) (20℃/68℉) (20℃/68℉)

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