mundoclima H11 Series Service Manual
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mundoclima H11 Series Service Manual

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MULTI INVERTER SERIE H11
R32
Service manual
CL21400 ~ CL21407
www.mundoclima.com

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  • Page 1 MULTI INVERTER SERIE H11 Service manual CL21400 ~ CL21407 www.mundoclima.com...

  • Page 2: Table Of Contents

    CONTENTS 1. General information of Outdoor Units ........2 2. Features .................. 3 3. Dimensions ................4 4. Refrigeration Cycle Diagram ..........5 5. Wiring diagram ............... 8 6. Indoor units combination ............ 16 7. Sound Levels ................ 19 8. Installation Details ............... 20 8.1 Wrench torque sheet for installation ................

  • Page 3: General Information Of Outdoor Units

    Service manual H11 series MUEX- General information of Outdoor Units Model name Dimension (mm) Compressor MUEX-14-H11.2 800x333x554 KSN140D21UFZ MUEX-18-H11.2 805x330x554 KSN140D58UFZ MUEX-21-H11.3 890x342x673 KSN140D58UFZ MUEX-27-H11.3 890x342x673 KTM240D57UMT MUEX-28-H11.4 946x410x810 KTM240D57UMT MUEX-36-H11.4 946x410x810 KTF310D43UMT MUEX-42-H11.5 KTF310D43UMT 946x410x810...

  • Page 4: Features

    Service manual H11 series MUEX- Features Outdoor unit Power relay control Low noise air flow system Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode. 4 way valve control It is only operated in the heating operation mode except defrosting operation.

  • Page 5: Dimensions

    Service manual H11 series MUEX- Dimensions Unit mm Model MUEX-14-H11.2 MUEX-18-H11.2 MUEX-21-H11.3 MUEX-27-H11.3 MUEX-28-H11.4 1034 MUEX-36-H11.4 1034 MUEX-42-H11.5 1034...

  • Page 6: Refrigeration Cycle Diagram

    Service manual H11 series MUEX- Refrigeration Cycle Diagram Refrigeration circuit drawing of inverter 1 drive 2 type MUEX-14-H11.2 MUEX-18-H11.2 INDOOR OUTDOOR EXV A LIQUID VALVE A CAPILLARY EXV B LIQUID VALVE B Condenser temp. sensor HEAT HEAT EXCHANGE T4 Ambient...
  • Page 7 Service manual H11 series MUEX- 4.2 Refrigeration circuit drawing of inverter 1 drive 3 type MUEX-21-H11.3 MUEX-27-H11.3 INDOOR OUTDOOR EXV A LIQUID VALVE A EXV B CAPILLARY TUBE LIQUID VALVE B EXV C Condenser LIQUID VALVE C temp. sensor HEAT...
  • Page 8 Service manual H11 series MUEX- 4.4 Refrigeration circuit drawing of inverter 1 drive 5 type MUEX-42-H11.5 INDOOR OUTDOOR EXV A LIQUID VALVE A EXV B LIQUID VALVE B EXV C LIQUID VALVE C CAPILLARY TUBE EXV D LIQUID VALVE D Condenser temp.

  • Page 9: Wiring Diagram

    Service manual H11 series MUEX- Wiring diagram MUEX-14-H11.2 , MUEX-18-H11.2...
  • Page 10 Service manual H11 series MUEX-...
  • Page 11 Service manual H11 series MUEX- MUEX-21-H11.3 , MUEX-27-H11.3...
  • Page 12 Service manual H11 series MUEX- MUEX-27-H11.3...
  • Page 13 Service manual H11 series MUEX- MUEX-36-H11.4...
  • Page 14 Service manual H11 series MUEX- MUEX-42-H11.5...

  • Page 15: Indoor Units Combination

    Service manual H11 series MUEX- Indoor units combination 6.1 Indoor unit combination for MUEX-14-H11.2 One unit Two unit 9+12 7+12 6.2 Indoor unit combination for MUEX-18-H11.2 One unit Two unit 9+12 7+12 12+12 6.3 Indoor unit combination for MUEX-21-H11.3 One unit...
  • Page 16 Service manual H11 series MUEX- 6.6 Indoor unit combination for MUEX-36-H11.4 One unit Two unit Three unit Four unit 9+18 7+7+7 7+9+12 7+18+18 9+12+18 7+7+7+7 7+7+9+12 7+9+9+12 9+9+9+12 9+24 7+7+9 7+9+18 9+9+9 9+12+24 7+7+7+9 7+7+9+18 7+9+9+18 9+9+9+18 7+12 12+12 7+7+12...
  • Page 17 Service manual H11 series MUEX- Indoor unit combination for MUEX-42-H11.5 One Unit Two Unit Three Unit 9+18 7+7+7 7+9+18 9+9+12 12+12+12 9+24 9+9+18 7+7+9 7+9+24 12+12+18 7+12 12+12 7+7+12 7+12+12 9+9+24 12+12+24 7+18 12+18 7+7+18 7+12+18 9+12+12 12+18+18 7+24 12+24...

  • Page 18: Sound Levels

    Service manual H11 series MUEX- Sound Levels Outdoor Unit Microphone 1.0m Note: H= 0.5 × height of outdoor unit Model Noise Power dB(A) Noise level dB(A) MUEX-14-H11.2 MUEX-18-H11.2 MUEX-21-H11.3 MUEX-27-H11.3 MUEX-28-H11.4 MUEX-36-H11.4 MUEX-42-H11.5...

  • Page 19: Installation Details

    Service manual H11 series MUEX- Installation Details 8.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2600(265kgf.cm) 2500(255kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) 8.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet.

  • Page 20: Installation For The First Time

    Service manual H11 series MUEX- When refrigerant pipe diameter is different from that of outdoor unit union (for 18K&24K indoor unit), additional transfer connector needs to be used on outdoor unit union. Indoor unit Extension pipe diameter (mm/inch) Model Pipe diameter (mm/inch) Liquid 6.35(1/4)
  • Page 21 Service manual H11 series MUEX- (Indoor unit) (Outdoor unit) (Liquid side) Two-way valve Close (Gas side) Three-way valve Close Manifold valve Compound meter Pressure Pressu gauge -0.1MPa Handle Lo Handle Hi Handle Hi Charge hose Charge hose Vacuum Vacuum pump...
  • Page 22 Service manual H11 series MUEX- 2. Adding the refrigerant if the pipe length >5m Electronic scale Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder.

  • Page 23: Adding The Refrigerant After Running The System For Many Years

    Service manual H11 series MUEX- 8.5 Adding the refrigerant after running the system for many years Electronic scale Procedure: 1). Connect the charge hose to the 3-way service port, open the 2-way valve and the 3-way valve. Connect the charge hose to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge.

  • Page 24: Re-Installation While The Indoor Unit Need To Be Repaired

    Service manual H11 series MUEX- 8.6 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 opened position Remove the valve stem caps and confirm that the valve stems are in the opened position.
  • Page 25 Service manual H11 series MUEX- 2. Air purging with vacuum pump (Indoor unit) (Outdoor unit) (Liquid side) Two-way valve Close (Gas side) Three-way valve Close Manifold valve Compound meter Pressure Pressu gauge -0.1MPa Handle Lo Handle Hi Handle Hi Charge hose...

  • Page 26: Re-Installation While The Outdoor Unit Need To Be Repaired

    Service manual H11 series MUEX- 8.7 Re-installation while the outdoor unit need to be repaired 1. Evacuation for the whole system Procedure: 1). Confirm that both the 2-way and 3-way valves are set to the opened position. 2). Connect the vacuum pump to 3-way valve’s service port.
  • Page 27 Service manual H11 series MUEX- 2. Refrigerant charging Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder.

  • Page 28: Electronic Control Function

    Service manual H11 series MUEX- Electronic control function 9.1 Abbreviation T1: Indoor ambient temperature T2: Coil temperature of indoor heat exchanger middle. T2B: Coil temperature of indoor heat exchanger outlet(This sensor is located in outdoor unit) T3: Coil temperature of outdoor heat exchanger...
  • Page 29 Service manual H11 series MUEX- 9.4 Outdoor unit point check function A check switch is included on the outdoor PCB. Push SW1 to check the unit's status while running. The digital display shows the following codes each time the SW1 is pushed.
  • Page 30 Service manual H11 series MUEX- Indoor unit E evaporator temperature (T Condenser pipe temperature (T3) Outdoor ambient temperature (T4) Compressor discharge temperature (TP) The display value is between 30–129 !. If the temperature is lower than 30 !, the digital display shows “30.” If the temperature is higher than 99 !, the digital display shows single and double digits.
  • Page 31 Service manual H11 series MUEX- Indoor unit B capacity demand code (9K: 1HP,12K: 1.2HP,18K: 1.5HP) Indoor unit C capacity demand code Indoor unit D capacity demand code Indoor unit E capacity demand code Outdoor unit amendatory capacity demand code The frequency corresponding to the total indoor...
  • Page 32 Service manual H11 series MUEX- Average value of T2 (Sum T2 value of all indoor units)/(number of indoor units in good connection) Outdoor unit fan motor state Off: 0, Super high speed:1, High speed:2, Med speed: 3, Low speed: 4,...
  • Page 33 Service manual H11 series MUEX- Indoor unit A capacity Indoor unit B capacity The capacity unit is horse power. If the indoor unit is not connected, the Indoor unit C capacity digital display shows the following: “――” (9K:1HP,12K:1.2HP,18K:1.5HP) Indoor unit D capacity...
  • Page 34 Service manual H11 series MUEX- Bit3 Bit5=1, Bit3=1, Frequency limit caused by T3. and Bit1=1. Bit2 Frequency limit caused by T5. This means that a frequency limit Bit1 Frequency limit caused by current may be caused by T4, T3, or the...
  • Page 35 Service manual H11 series MUEX- CoolZone5 CoolZone4 CoolZone3 CoolZone2 CoolZone1 Heating mode: HeatZone4 HeatZone3 HeatZone2 HeatZone1 9.5.5 Indoor / outdoor units communication protection If the indoor units cannot receive the feedback signal from the outdoor units for 2 minutes, or If the outdoor units cannot receive the feedback signal from any of the indoor units for 3 minutes, the unit ceases operation and displays the failure.
  • Page 36 Service manual H11 series MUEX- 9.5.9 Low outdoor ambient temperature protection When compressor is off, T4 is be lower than -35 .for 10s, the AC will stop and display “LP” or “PC 0L”. When compressor is on, T4 is be lower than -40 .for 10s, the AC will stop and display “LP” or “PC 0L”.

  • Page 37: Troubleshooting

    Service manual H11 series MUEX- 10. Troubleshooting 10.1 Indoor unit error code explanation: MUPR-09/12/18/24-H9M; MUCSR-12/18-H11-I; MUCSR-12/18-H9M; MUCR-12/18-H9M Operation Lamp Malfunction Timer Lamp Error Code (flashes) Indoor EEPROM malfunction Communication malfunction between indoor and outdoor units Indoor fan speed has been out of control...
  • Page 38 Service manual H11 series MUEX- MUPR-09/12/18/24-H11-I; MUPR-09/12/18/24-H10X-I Running Timer Lamp Display Error Information Lamp EH 00/EH 1 time Indoor unit EEPROM parameter error 2 times EL 01 Indoor/outdoor unit communication error 3 times EH 02 Zero-crossing signal detection error The indoor fan speed is operating outside of the...
  • Page 39 Service manual H11 series MUEX- 10.2 Outdoor unit error code explanation: For other models, MUEX-14-H11.2 , MUEX-18-H11.2 , MUEX-28-H11.4 , MUEX-36-H11.4 Display LED STATUS Outdoor EEPROM malfunction Indoor / outdoor units communication error Communication malfunction between IPM board and outdoor main board Open or short circuit of outdoor unit temperature sensor(T3,T4.T5)
  • Page 40 Service manual H11 series MUEX- MUEX-21-H11.3 MUEX-27-H11.3 MUEX-42-H11.5 Display LED STATUS EC 51 Outdoor EEPROM malfunction EL 01 Indoor / outdoor units communication error PC 40 Communication malfunction between IPM board and outdoor main board PC 08 Outdoor overcurrent protection...
  • Page 41 Service manual H11 series MUEX- EC 50 Open or short circuit of outdoor unit temperature sensor(T3,T4.T5)
  • Page 42 Service manual H11 series MUEX- 10.3 Trouble shooting 10.3.1 For the indoor unit 10.3.1.1 Indoor EEPROM malfunction (IDU E0/EA/EH 00/EH 0A) Power off, then restart the unit 2 minutes later Replace the indoor main PCB EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and...
  • Page 43 Service manual H11 series MUEX- 10.3.1.2 Indoor / outdoor units communication error(E1(IDU)/ E2(ODU)/ EL 01(IDU/ODU)) 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...
  • Page 44 Service manual H11 series MUEX- Pic 1: check the voltage of N to S (Vs), is it moving alternately between positive value and negative value? Pic 2:IPM or outdoor main PCB Operating Self-Check Pic 2: IPM or outdoor main PCB...
  • Page 45 Service manual H11 series MUEX- 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 46 Service manual H11 series MUEX- 10.3.1.3 Indoor fan speed has been out of control (IDU E3/ EH 03 ) Power off, then restart the Power off, then restart the unit 2 minutes later. Is it still The unit operates norma l ly.
  • Page 47 Service manual H11 series MUEX- 2. Indoor 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 48 Service manual H11 series MUEX- 10.3.1.4 Open or short circuit of temperature sensor(IDU E4/E5/EH 60/EH 61) Check the connections Check the connections between temperature between temperature Correct the connections. Correct the connections. sensor and PCB. Are the sensor and PCB. Are the...
  • Page 49 Service manual H11 series MUEX- 10.3.1.7 Communication error between the indoor PCB and display board(IDU Eb/EH 0b) Power off, then restart the unit 2 minutes later Check the wirings Correct the connection and connection or replace the wirings Replace the indoor main PCB Replace the Display board 10.3.1.8 Inverter compressor drive malfunction(IDU P4/ PC04)
  • Page 50 Service manual H11 series MUEX- 10.3.1.10 Refrigerant Leakage Detection(IDU EC/ EL 0C) Power off, then restart the unit 2 minutes later. Does a problem remain? Put your hands in front of the indoor air outlet. Is there cool air blowing out from Check the T2 sensor.
  • Page 51 Service manual H11 series MUEX- 10.3.3 For the outdoor unit 10.3.3.1 Outdoor EEPROM malfunction(ODU E0/EC 51) Power off, then restart the Power off, then restart the unit 2 minutes later unit 2 minutes later Replace the outdoor main PCB Replace the outdoor main PCB EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
  • Page 52 Service manual H11 series MUEX- 10.3.3.3 Communication malfunction between IPM board and outdoor main board(ODU E3/PC 40) E3 display Communication malfunction between IPM board and outdoor main board Is there at least one LED in the IPM board light? Check the signa l w i re between...
  • Page 53 Service manual H11 series MUEX- 10.3.3.4 Voltage protection(ODU E5) Outdoor unit low AC voltage protection(PC10) Outdoor unit main control board DC bus high voltage protection(PC11) Outdoor unit main control board DC bus high voltage protection /341 MCE error(PC12) Voltage protection...
  • Page 54 Service manual H11 series MUEX- 10.3.3.5 PFC module protection (ODU E6/PC 0F) PFC module protection Check whether the connecting line between Connect it tightly, check main board and the PFC normal or not module(IPM module) is connected tightly Check whether the voltage...
  • Page 55 Service manual H11 series MUEX- 10.3.3.6 Outdoor fan speed has been out of control or compressor speed has been out of control (ODU E8/EC 07) Over current failure of outdoor DC fan motor (ODU EC71) Power off, then restart the unit after 2 minutes.
  • Page 56 Service manual H11 series MUEX- Index 1: 1. Outdoor 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 57 Service manual H11 series MUEX- 10.3.3.7 High pressure protection (ODU P1/PC 30)(For MUEX-36-H11.4 MUEX-42-H11.5 High pressure protection High pressure protection Whether the wiring Whether the wiring between the high pressure between the high pressure sw i tch and ma i n control...
  • Page 58 Service manual H11 series MUEX- 10.3.3.8 Low pressure protection (ODU P2/PC 31) (For MUEX-36-H11.4 MUEX-42-H11.5 Low pressure protection Low pressure protectio Whether the wiring Whether the w i r i ng between the low pressure between the low pressure protector and main control...
  • Page 59 Service manual H11 series MUEX- 10.3.3.9 Current protection of compressor (ODU P3/PC 08) Outdoor unit zero speed protection(ODU PC44) Compressor speed has been out of control(ODU PC46) Compressor overcurrent failure(ODU PC49) Current protection of compressor Judge 1: Check whether the...
  • Page 60 Service manual H11 series MUEX- 10.3.3.10 Temperature protection of compressor discharge (ODU P4/ PC 06) Temperature protection of Temperature protection of compressor discharge compressor discharge Check whether the Check whether the Check whether the Check whether the compressor discharge temp. is compressor discharge temp.
  • Page 61 Service manual H11 series MUEX- 10.3.3.11 High temperature protection of condenser (ODU P5/ PC 0A) When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor pipe temperature less than 52°C. Check the connection...
  • Page 62 Service manual H11 series MUEX- 10.3.3.12 IPM module protection (ODU P6/PC 00) IPM module protection Check whether the voltage range Check whether the input Regu l ate i t to correct, then of P-N on I PM module i s norma l ?
  • Page 63 Service manual H11 series MUEX- 10.3.3.13 Top temperature protection of compressor (ODU P0/ PC 02) Check if the air flow system Clear up the air inlet and outlet or the heat of indoor and outdoor units exchanger of indoor and outdoor units.
  • Page 64 Service manual H11 series MUEX- 10.3.3.14 Lack phase failure of outdoor DC fan motor(EC72) Power off,then restart the unit The unit operates 2 minutes later.Is it still normally displaying the error code Check the wiring of fan motor.Are all the connections...
  • Page 65 Service manual H11 series MUEX- 10.3.3.15 Outdoor compressor lack phase protection(PC43) Power off,then restart the unit The unit operates 2 minutes later.Is it still normally displaying the error code Check both ends of compressor connecting Correct the connections line .Are all the connections...
  • Page 66 Service manual H11 series MUEX- 10.3.3.19 Automatic correction of wiring/piping error: Press the "check switch" on the outdoor unit PCB board 5 seconds until LED display "CE", which mean this function is working, Approximately 5-10 minutes after the switch is pressed, the "CE"...
  • Page 67 Service manual H11 series MUEX- 10.4 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(T5) sensor.
  • Page 68 Service manual H11 series MUEX- Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4,T2B ( --K) K Ohm K Ohm K Ohm K Ohm 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...
  • Page 69 Service manual H11 series MUEX- Appendix 2 Temperature Sensor Resistance Value Table for T5 ( --K) K Ohm K Ohm K Ohm 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 57.37...
  • Page 70 Service manual H11 series MUEX- 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value KSM135D23UFZ KTF235D22UMT KTF310D43UMT Blue - 1.72Ω(20 ) 0.75Ω(20 ) 0.65Ω(20 )
  • Page 71 Service manual H11 series MUEX- 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.
  • Page 72 Service manual H11 series MUEX- 5.EXV check Disconnect the connectors. Red Brown Blue Orange Yellow White Resistance to EXV coil Color of lead wire Normal Value Red- Blue Red - Yellow About 50Ω Brown-Orange...
  • Page 73 C/ NÁPOLES, 249 P1 08013 BARCELONA SPAIN (+34) 93 446 27 80 SAT: (+34) 93 652 53 57 www.mundoclima.com...

This manual is also suitable for:

Muex-14-h11.2Muex-18-h11.2Muex-21-h11.3Muex-27-h11.3Muex-28-h11.4Muex-36-h11.4 ... Show all

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