Midea MS11M-09HRFN1-BW0W Service Manual
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Midea MS11M-09HRFN1-BW0W Service Manual

Oasis mono split hyper dc inverter air conditioner
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Revision C: 1707180001, Content updated.
Model Numbers:
MS11M-09HRFN1-BW0W MS11M-12HRFN1-BV0W CS11M-09HRFN1-MX0W(A) CS11M-12HRFN1-MV0W
CS11M-18HRFN1-MT0W CS11M-23HRFN1-MT0W MS11M-30HRFN1-MR0W MS11M-36HRFN1-MN10W
MS11M-09HRFN1-MZ65W(A) MS11M-09HRFN1-MZA5W(A) MS11M-12HRFN1-MZ10W
MS11M-12HRFN1-MZ50W(A) MS11M-17HRFN1-MW0W

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Oasis MONO Split Hyper DC
Inverter Air Conditioner
SERVICE MANUAL
Mono 3D

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Summary of Contents for Midea MS11M-09HRFN1-BW0W

  • Page 1: Table Of Contents

    Oasis MONO Split Hyper DC Inverter Air Conditioner Mono 3D SERVICE MANUAL Revision C: 1707180001, Content updated. Model Numbers: MS11M-09HRFN1-BW0W MS11M-12HRFN1-BV0W CS11M-09HRFN1-MX0W(A) CS11M-12HRFN1-MV0W CS11M-18HRFN1-MT0W CS11M-23HRFN1-MT0W MS11M-30HRFN1-MR0W MS11M-36HRFN1-MN10W MS11M-09HRFN1-MZ65W(A) MS11M-09HRFN1-MZA5W(A) MS11M-12HRFN1-MZ10W MS11M-12HRFN1-MZ50W(A) MS11M-17HRFN1-MW0W Table of Contents Precaution Part Names And Functions...
  • Page 2 CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2. Part Names And Functions .......................... 4 2.1 Model Names of Indoor/Outdoor units ..................4 2.2 Part names of Indoor/Outdoor units ....................5 3. Dimension ..............................6 3.1 Indoor Unit .............................

  • Page 3: Precaution

    Sharp edges could cause injury, be especially careful of the case edges and the fins on the 1. Precaution condenser and evaporator.  For installation, always contact the 1.1 Safety Precaution dealer or an authorized service center.   To prevent injury to the user or other Do not install the product on a people and property damage, the following defective installation stand.
  • Page 4 There is risk of electric shock or fire. product.  Stop operation and close the window It can avoid vibration of water leakage.  in storm or hurricane. If possible, remove Do not install the product where the the product from the window before the noise or hot air from the outdoor unit could hurricane arrives.
  • Page 5  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. Do not mix old and new batteries or different types of batteries.

  • Page 6: Part Names And Functions

    2. Part Names And Functions 2.1 Model Names of Indoor/Outdoor units Outdoor units Series Capacity Indoor units MS11M-09HRFN1-BW0W MOB30-09HFN1-BW0W MOB30-09HFN1-MX0W CS11M-09HRFN1-MX0W(A) MOCA30-09HFN1-MZ65W MS11M-09HRFN1-MZ65W(A) MOCA30-09HFN1-MZ65W MS11M-09HRFN1-MZA5W(A) MS11M-12HRFN1-BV0W MOB30-12HFN1-BV0W CS11M-12HRFN1-MU5W MOB30-12HFN1-MV0W Inverter MS11M-12HRFN1-MZ10W MOCA30-12HFN1-MZ10W MS11M-12HRFN1-MZ50W(A) MOCA30-12HFN1-MZ10W MS11M-17HRFN1-MW0W MCA30-17HFN1-MW0W CS11M-18HRFN1-MT0W MOCA30-18HFN1-MT0W CS11M-23HRFN1-MT0W MOD30-24HFN1-MT0W...

  • Page 7: Part Names Of Indoor/Outdoor Units

    2.2 Part names of Indoor/Outdoor units...

  • Page 8: Dimension

    3. Dimension 3.1 Indoor Unit Model MS11M-09HRFN1-BW0W MS11M-12HRFN1-BV0W CS11M-09HRFN1-MX0W(A) 835mm 198mm 280mm MS11M-09HRFN1-MZ65W(A) (32.9in) (7.8in) (11.0in) MS11M-12HRFN1-MZ10W CS11M-12HRFN1-MU5W MS11M-09HRFN1-MZA5W(A) MS11M-12HRFN1-MZ50W(A) 990mm 218mm 315mm MS11M-17HRFN1-MW0W (39.0in) (8.6in) (12.4in) CS11M-18HRFN1-MT0W CS11M-23HRFN1-MT0W 1186mm 258mm 343mm MS11M-30HRFN1-MR0W (46.7in) (10.2in) (13.5in) MS11M-36HRFN1-MN10W...
  • Page 9 CS11M-09HRFN1-MX0W(A), MS11M-09HRFN1-MZ65W(A), CS11M-12HRFN1-MU5W, MS11M-12HRFN1-MZ10W MS11M-09HRFN1-MZA5W(A), MS11M-12HRFN1-MZ50W(A), MS11M-17HRFN1-MW0W, CS11M-18HRFN1-MT0W , For CS11M-23HRFN1-MT0W ,...
  • Page 10 For MS11M-09HRFN1-BW0W, MS11M-12HRFN1-BV0W , For MS11M-30HRFN1-MR0W, MS11M-36HRFN1-MN10W,...

  • Page 11: Outdoor Unit

    3.2 Outdoor Unit M o r e t h a n 3 0 c m ( 1 1 . 8 in ) M o r e t h a n 6 0 c m ( 2 3 . 6 in ) ( S e r v ic e s p a c e ) M o r e t h a n 3 0 c m ( 1 1 .

  • Page 12: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram I N D O O R O U T D O O R E l e c t r o n i c C A P I L L A R Y e x p a n s i o n v a l v e L I Q U I D S I D E t u b e 2 - W A Y V A L V E...

  • Page 13: Wiring Diagram

    (0.16oz/ft) CS11M-18HRFN1-MT0W+ 6.3 Pipe length and the elevation MOCA30-18HFN1-MT0W Pipe size Models CS11M-23HRFN1-MT0W+ MOD30-24HFN1-MT0W Liquid 7.5m 30g/m (24.6ft) (82ft) (164ft) (0.32oz/ft) MS11M-09HRFN1-BW0W+ MOB30-09HFN1-BW0W 3/8in 1/4in MS11M-30HRFN1-MR0W+ (Ф (Ф MOD30-30HFN1-MR0W 9.52mm) 6.35mm) CS11M-09HRFN1-MX0W(A)+ MOB30-09HFN1-MX0W 7.5m 30g/m MS11M-36HRFN1-MN10W+ MS11M-09HRFN1-MZA5W(A)+ MOCA30-09HFN1-MZ65W 1/2in 1/4in MOD30-36HFN1-MP0W (24.6ft)

  • Page 14: Installation For The First Time

    6.4 Installation for the first time 5) Operate the vacuum pump to evacuate. 6) Make evacuation for 30 minutes and check Air and moisture in the refrigerant system have whether the compound meter indicates undesirable effects as below: -0.1Mpa(14.5Psi). If the meter does not indicate -0.1Mpa(14.5Psi) after pumping 30 ●...

  • Page 15: Re-Installation While The Indoor Unit Need To Be Repaired

    and press the check valve on the charge set to Open the handle Lo valve of the manifold valve purge the air (be careful of the liquid slightly to purge air from the charge hose for 5 refrigerant). seconds and then close it quickly. 3) Put the charging cylinder onto the electronic 4).
  • Page 16 pumping 50 minutes, please check if there are some leakage points. Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump. Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). 7)Turn the flare nut of the 3-way valves about 45°...

  • Page 17: Operation Characteristics

    ° F ° F ～50 ° C ° C MS11M-36HRFN1-MN10W) ～122 ° F ° F (need low ambient cooling function) Outdoor temperature (MS11M-09HRFN1-BW0W, ～50 ～30 ～50 ° C ° C ° C ° C ° C ° C MS11M-12HRFN1-BV0W, ～122 ～86...

  • Page 18: Electronic Function

    8. Electronic Function 8.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of condenser T4: Outdoor ambient temperature TP: Compressor discharge temperature 8.2 Display function 8.2.1 Icon explanation on indoor display board. ION indication lamp(optional function)：This lamp illuminates when Clean Air feature is activated.

  • Page 19: Main Protection

    function. 8.3 Main Protection 8.3.7 Compressor preheating functions 8.3.1 Three minutes delay at restart for Preheating permitting condition: compressor When T4(outdoor ambient temperature)＜ Less than 1 minute delay for the 1 time 3° C(37.4° F), the preheating function will be stand-up and 3 minutes delay for others.

  • Page 20: Operation Modes And Functions

    8.4 Operation Modes and Functions and the speed can be selected as high, medium, low and auto. 8.4.1 Fan mode When the setting temp. is reached, if the (1) Outdoor fan and compressor stop. compressor stop running, indoor fan motor will (2) Temperature setting function is disabled, run in Minimum speed or setting speed.
  • Page 21 When the AC run in mute mode, the T 1 - T d + Δ T 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. 8.4.3.2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4.
  • Page 22 (ΔT =T1-Ts). off the machine. 8.4.6.2 In forced operation mode, all general T 1 - T s protections and remote control are available. C o o lin g 8.4.6.3 Operation rules: Forced cooling mode: The compressor runs at F2 frequency and F a n o n ly indoor fan runs as breeze.
  • Page 23 8.4.10 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 24 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. 2. All the temperature is °C no matter Targeted -19—99 -19—99 Frequency, what kind of remote controller is used. A0,A1,…A9 100,101,…109 Actual 3.

  • Page 25: 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 26: 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 27: Outdoor Unit Error Display

    9.2 Outdoor unit error display ， MOCA30-18HFN1-MT0W MOB30-09HFN1-MX0W, MOB30-12HFN1-MV0W, MOCA30-09HFN1-MZ65W, MOCA30-12HFN1-MZ10W, MCA30-17HFN1-MW0W 2 9 0 - 3 3 0 V D C s t a n d b y 2 1 0 - 3 0 0 V D C r u n n i n g c o n n e c t t o th e D R m o d u le b ri d g e c o n n e c t to re a c t a n c e...
  • Page 28 For MOB30-09HFN1-BW0W, MOB30-12HFN1-BV0W, c o n n e c t t o P F C C a p a c i t o r w h e n i s o n , 1 0 0 - 1 3 0 V A C o u t p u t c o n n e c t t o r e a c t o r w h e n i s o n , 1 0 0 - 1 3 0 V A C o u t p u t...
  • Page 29 For MOD30-24HFN1-MT0W, MOD30-30HFN1-MR0W,MOD30-36HFN1-MP0W, C o n n e c t t o t h e I n d o o r e v a p . p i p e o u t t e m p . s e n s o r T 2 B - A 、...
  • Page 30 IPM board, c o n n e c t t o D C f a n m o t o r T O M A I N 0 V A C ( s t a n d b y ) C N 1 9 C N 5 5 1 0 - 2 0 0 V A C...

  • Page 31: Diagnosis And Solution

    9.3 Diagnosis and Solution 9.3.1 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 32 9.3.2 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 33 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 34 9.3.3 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 35 9.3.4 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 36 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 37 9.3.5 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 38 9.3.6 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 ° C( °...
  • Page 39 9.3.6 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 40 9.3.7 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 41 For example: Note: The photos below are only for reference, it’s may be not same totally with the ones on your side.
  • Page 44 For 24K~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 45 9.3.8 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 46 9.3.9 High temperature protection of IPM module diagnosis and solution(P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes PCB faulty ● Trouble shooting: Check if the fastening screws Check if the fastening screws on the PCB and IPM radiator on the PCB and IPM radiator...
  • Page 47 9.3.10 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 48 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 49 For 24K~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 50 9.3.11 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 51 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.(TP) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 52 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C--K) °C °F °C °F °C °F °C °F 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 11.5 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683...
  • Page 53 Appendix 2 Temperature Sensor Resistance Value Table for TP (° C --K) °C °F °C °F °C °F °C °F 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...
  • Page 54 Appendix 3: °C °F °C °F °C °F °C °F °C °F 69.8 123.8 179.6 235.4 24.8 71.6 125.6 181.4 237.2 26.6 73.4 127.4 183.2 28.4 75.2 129.2 240.8 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 55 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 partial With fully With passive active PFC active PFC PFC module module module >200VDC >310VDC >370VDC >450VDC...
  • Page 56 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASM98D32UFZ ATM115D43UFZ2 ATM150D23UFZ ATF235D22UMT ATF250D22UMT Blue – 2.25Ω 1.87Ω 1.72Ω 0.75Ω 0.75Ω Blue - (20°C (20°C (20°C (20°C (20°C Black /68°F) /68°F) /68°F) /68°F) /68°F) Red –...
  • Page 57 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. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
  • Page 58 5: Pressure On Service Port Cooling chart: °F ° (23.89) (29.44) (35) (40.56) (46.11) 70/59 10.1 75/63 10.7 80/67 11.2 °F ° (23.89) (29.44) (35) (40.56) (46.11) 70/59 75/63 80/67 °F ° (23.89) (29.44) (35) (40.56) (46.11) 70/59 0.82 0.78 0.81 0.86 1.01...
  • Page 59 Heating Chart: °F 57/53 47/43 37/33 27/23 17/13 °C (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) (-8.33/-10.56) 30.3 28.5 25.3 22.8 20.8 32.5 30.0 26.6 25.4 23.3 33.8 31.5 27.8 26.3 24.9 °F 57/53 47/43 37/33 27/23 17/13 °C (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) (-8.33/-10.56) °F 57/53...

  • Page 60: Disassembly Instructions

    10 Disassembly Instructions Note: This part is for reference, the photos may have slight difference with your machine. 10.1 Indoor unit Parts name Procedures Remarks Front panel How to remove the front Overview: panel. Pull the below side of One screw Panel the panel and release the fixing the cover...
  • Page 61 Electrical How to remove the Room temp. parts electrical parts. sensor Grounding screws After remove the front panel from Swing motor procedure 1, pull out the room temp. sensor and evaporator coil sensor. Remove the grounding screws. Pull out the clip toward the left side and open the cover.
  • Page 62 Evaporator remove evaporator. 1) After remove the front panel ass’ y and electrical parts following procedure 1 and procedure 2, remove the pipe holder at the rear side of the unit. 2) Remove the two screws on the evaporator at the base bearing side. 3) Remove two screws on the evaporator at the fixed plates and then lift...
  • Page 63 Fan and How to remove the fan motor and motor. After remove the evaporator ass’y following procedure 1, procedure 2 and procedure 3, remove the three screws fixing the cover Remove the screw fixing the motor and then pull out the motor. Three screws One screw...

  • Page 64: Outdoor Unit

    10.2 Outdoor unit MOB30-09HFN1-BW0W, MOB30-09HFN1-MX0W, MOB30-12HFN1-BV0W, MOB30-12HFN1-MV0W Part name Procedures Remarks Panel plate How to remove the panel plate. Screws of top panel (3 screws, 1 screw is under the big handler) 1) Stop operation of the air conditioner and 3 screws turn “OFF”...
  • Page 65 Fan ass’y ○ How to remove the fan ass’y. 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove ○ the fan. 2) Unfix the hooks and compressor T3,T4,T5 sensor then open the electronic control box cover.
  • Page 66 3) Disconnect the ○ connector for fan motor from the electronic control board. ○ 4) Remove the four fixing screws of the fan motor. Then remove the fan motor. Electrical How to remove the ○ parts electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor.
  • Page 67 ○ 3) Pull out connectors of the condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(TP). 4) disconnect the ○ electronic expansion valve wire 5) Remove the ○ ○ grounding screw. 6) Remove the Wires (1,2,3). Then remove the electronic control box.
  • Page 68 Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. ○ ○ 1) Perform work of item1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.
  • Page 69 MOCA30-18HFN1-MT0W, Part name Procedures Remarks Panel plate How to remove the panel plate. 1) Stop operation of 3 screws of top panel the air conditioner and turn “OFF” the power 3 screws of breaker. big handle 2) Remove the top panel(3 screws).
  • Page 70 Fan ass’y How to remove the fan ass’y. ○ 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. ○ 2) After remove the top cover . Unfix the hooks and then open the electronic control box cover.
  • Page 71 3) Disconnect the ○ connector for fan motor from the electronic control board. ○ 4) Remove the four fixing screws of the fan motor. Then remove the fan motor. Electrical How to remove the ○ parts electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor and reactor.
  • Page 72 ○ 2) Pull out the two blue ○ wires connected with the four way valve. ○ ○ 3) Pull out connectors of the condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(TP). ○ 4) disconnect the electronic expansion valve wire...
  • Page 73 ○ 5) remove the electric heaters. 6) Remove the grounding screw. 7) Remove the Wires (1,2,3 or L1,L2,S).Then remove the electronic control box. ⑥ ○...
  • Page 74 Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. 1) Perform work of ④ ○ item1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.
  • Page 75 MOD30-24HFN1-MT0W, MOD30-30HFN1-MR0W, MOD30-36HFN1-MP0W, Part name Procedures Remarks Panel plate How to remove the panel 4 screws of big handle plate. Screws of top panel(3screws,1screws is under the big handle) 1) Stop operation of the air conditioner and turn “OFF” the power breaker. 2) Remove the big handle Screws of front panel(11 screws) first,then remove the top...
  • Page 76 Fan ass’y How to remove the fan ass’y. Electronic control box 1) After remove the panel plate following procedure 1 2) Remove the nut fixing the fan,and remove the fan. compressor ○ 3) Unfix the hooks and remove the screws, then open the electronic control ○...
  • Page 77 Compressor T3,T4,T5,sensor Pressure switch wire ○ Motor wire Electronic expansion 4 way valve 4) Disconnect the ○ connector for fan motor from the electronic control board. 5) Remove the four fixing screws of the fan motor, ○ then remove the motor.
  • Page 78 Electrical How to remove the ○ parts electrical parts. 1) After finish work of item 1 and item 2, remove the connector for the compressor ○ 2) Pull out the two blue wires connected with the four way valve. 3) Pull out connectors of ○...
  • Page 79 4)Disconnect the pressure ○ switch connector. 5) Disconnect the ○ electronic expansion valve wire from the control board ○ ○ 6) Remove the ground wires . 7) Remove the wires(1,2,3 or L1,L2,S). Then remove the electronic control box.
  • Page 80 Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. 1) Perform work of item 1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.

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Ms11m-12hrfn1-bv0wCs11m-09hrfn1-mx0wCs11m-09hrfn1-mx0waCs11m-12hrfn1-mv0wCs11m-18hrfn1-mt0wCs11m-23hrfn1-mt0w ... Show all

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