Midea MTA-76C(H)RN1 Technical Manual
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Midea MTA-76C(H)RN1 Technical Manual

R410a t3 top-discharge split type series 50hz
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Top-discharge Split Type Series 50Hz
Applicable Model:
MTA-76C(H)RN1
MTA-96C(H)RN1
MTA-120C(H)RN1
MTA-150CRN1
MHB-76C(H)RN1
MHB-96C(H)RN1
MFA-76C(H)RN1
MFA-96C(H)RN1
MFAT-120CRN1
Midea reserves the right to discontinue, or change specification or designs at any time without notices and
without incurring obligations.
Midea R410A T3
Technical Manual
Indoor unit
Outdoor unit
MOV-76C(H)N1-C
MOV-96C(H)N1-C
MOV-120C(H)N1-C
MOV-76CN1-C×2
MOV-76C(H)N1-C
MOV-96C(H)N1-C
MOV-76C(H)N1-C
MOV-96C(H)N1-C
MOV-120C(H)N1-C

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Summary of Contents for Midea MTA-76C(H)RN1

  • Page 1 Outdoor unit MTA-76C(H)RN1 MOV-76C(H)N1-C MTA-96C(H)RN1 MOV-96C(H)N1-C MTA-120C(H)RN1 MOV-120C(H)N1-C MTA-150CRN1 MOV-76CN1-C×2 MHB-76C(H)RN1 MOV-76C(H)N1-C MHB-96C(H)RN1 MOV-96C(H)N1-C MFA-76C(H)RN1 MOV-76C(H)N1-C MFA-96C(H)RN1 MOV-96C(H)N1-C MFAT-120CRN1 MOV-120C(H)N1-C Midea reserves the right to discontinue, or change specification or designs at any time without notices and without incurring obligations.

  • Page 2: Table Of Contents

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Content Part. 1 General information ....2 Part. 2 Indoor Unit ....... 6 Part. 3 Outdoor Unit ......58 Part. 4 Installation ......66 Part. 5 Controller ......117...

  • Page 3: Part. 1 General Information

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Part. 1 General information 1. Model Names of Indoor/Outdoor Units ....... 3 2. External Appearance ............ 4 3. Nomenclature ..............5...

  • Page 4: Model Names Of Indoor/Outdoor Units

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 1. Model Names of Indoor/Outdoor Units 1.1 Model names of units with heat pump: Indoor unit Outdoor unit Cooling capacity Type Power Power Model Model MBtu/h supply supply MFA-76HRN1 MOV-76HN1-C 75.1...

  • Page 5: External Appearance

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 2. External Appearance 2.1 Indoor units MTA-76C(H)RN1, MFA-96C(H)RN1 MTA-120C(H)RN1 MFA-76C(H)RN1, MFA-96C(H)RN1, MTA-150CRN1 MFAT-120CRN1 2.2 Outdoor unit MOV-76C(H)N1-C, MOV-96C(H)N1-C MOV-120C(H)N1-C...

  • Page 6: Nomenclature

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 3. Nomenclature 3.1 Indoor unit: M F A T – 120 C R N1 Refrigerant type - N1: R410A Remote controller Function code C: Cooling only H: Heat pump Nominal cooling capacity (120×1,000Btu/h)

  • Page 7: Part. 2 Indoor Unit

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Part. 2 Indoor Unit Duct Type ................7 Floor-standing Type ............ 38...
  • Page 8 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Duct Type 1. Features ................ 8 2. Specifications ..............9 3. Dimensions (Unit: mm) ..........15 4. Service Space ............. 16 5. Refrigerant circuit ............17 6. Wiring Diagrams ............18 7.

  • Page 9: Features

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 1. Features  High capacity of cooling and heating, and energy saving.  Thin size, even can installed at limited place.  All round steel shell, for high quality protection of transportation.

  • Page 10: Specifications

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 2. Specifications Model MTA-76HRN1 MTA-76CRN1 Type Medium static pressure duct Power supply 220-240V~, 1Ph, 50Hz Btu/h 75,100/64,100 75,100/64,100 Capacity (T1/T3) 22,000/18,800 22,000/18,800 Cooling Input (T1/T3) 7,500/8,850 7,500/8,850 EER (T1) 2.93 2.93...
  • Page 11 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Model MTA-96HRN1 MTA-96CRN1 Type Medium static pressure duct Power supply 220-240V~, 1Ph, 50Hz Btu/h 95,600/80,500 95,600/80,500 Capacity (T1/T3) 28,000/23,600 28,000/23,600 Cooling Input (T1/T3) 9,600/11,550 9,600/11,550 EER (T1) 2.92 2.92 Btu/h 105,000...
  • Page 12 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Model MTA-120HRN1 MTA-120CRN1 Type Medium static pressure duct Power supply 220-240V~, 1Ph, 50Hz Btu/h 119,400/102,400 119,400/102,400 Capacity (T1/T3) 35,000/30,000 35,000/30,000 Cooling Input (T1/T3) 12,000/13,250 12,000/13,250 EER (T1) 2.92 2.92 Btu/h 130,000...
  • Page 13 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Model MTA-150CRN1 Type Medium static pressure duct Power supply 220-240V~, 1Ph, 50Hz Btu/h 150,100/130,300 Capacity (T1/T3) 44,000/38,200 Cooling Input (T1/T3) 15,100/18,000 EER (T1) 2.91 Btu/h Capacity Heating Input Rated input (Whole units)
  • Page 14 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Model MHB-76HRN1 MHB-76CRN1 Type High static pressure duct Power supply 220-240V~, 1Ph, 50Hz Btu/h 75,100/64,100 75,100/64,100 Capacity (T1/T3) 22,000/18,800 22,000/18,800 Cooling Input (T1/T3) 7,500/8,850 7,500/8,850 EER (T1) 2.93 2.93 Btu/h 85,000...
  • Page 15 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Model MHB-96HRN1 MHB-96CRN1 Type High static pressure duct Power supply 220-240V~, 1Ph, 50Hz Btu/h 95,600/80,500 95,600/80,500 Capacity (T1/T3) 28,000/23,600 28,000/23,600 Cooling Input (T1/T3) 9,600/11,550 9,600/11,550 EER (T1) 2.92 2.92 Btu/h 105,000...

  • Page 16: Dimensions (Unit: Mm)

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 3. Dimensions (Unit: mm) MTA-76C(H)RN1, MTA-96C(H)RN1, MHB-76C(H)RN1, MHB-96C(H)RN1: Pipe side view MTA-120C(H)RN1, MTA-150CRN1:...

  • Page 17: Service Space

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Pipe side view 4. Service Space Top view...

  • Page 18: Refrigerant Circuit

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 5. Refrigerant circuit Heat pump: MTA-76HRN1, MTA-96HRN1, MTA-120HRN1, MHB-76HRN1, MHB-96HRN1 Cooling only: MTA-76CRN1, MTA-96CRN1, MTA-120CRN1, MHB-76CRN1, MHB-96CRN1...

  • Page 19: Wiring Diagrams

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Cooling only: MTA-150CRN1 6. Wiring Diagrams MTA-76HRN1, MTA-96HRN1, MHB-76HRN1, MHB-96HRN1...

  • Page 20: Midea R410A T3 Top-Discharge Split Type Series 50Hz Mcac-Utsm

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 MTA-120HRN1 MTA-76CRN1, MTA-96CRN1, MHB-76CRN1, MHB-96CRN1...
  • Page 21 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MTA-120CRN1, MTA-150CRN1...

  • Page 22: Capacity Table

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 7. Capacity Table MTA-76C(H)RN1, MHB-76C(H)RN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 19.5 15.2 6.56 21.9 12.4 6.76...
  • Page 23 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 17.3 14.2 7.94 18.9 10.7 8.18 20.1 8.33 15.8 13.0 8.13...
  • Page 24 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.9 15.5 12.7 8.51 16.8 8.87 17.9 9.12 26.7 15.8 14.4 8.53 17.1 11.1 8.89 18.2...
  • Page 25 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MTA-96C(H)RN1, MHB-96C(H)RN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 25.3 19.8 8.50 27.8 15.7 8.70 29.2 8.83 24.6...
  • Page 26 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 22.0 18.0 10.63 23.6 13.3 10.87 24.8 11.02 20.5 16.8 10.82...
  • Page 27 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.9 20.0 16.4 11.42 21.3 12.0 11.78 22.4 12.03 26.7 20.4 18.6 11.45 21.7 14.1 11.81...
  • Page 28 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 MTA-120C(H)RN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 32.0 25.0 10.99 34.6 19.5 11.19 36.0 11.32 31.4 25.7...
  • Page 29 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 28.3 23.2 12.33 29.9 16.9 12.57 31.1 12.72 26.8 22.0 12.52...
  • Page 30 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.9 26.5 21.8 14.01 27.8 15.7 14.37 28.9 14.62 26.7 27.1 24.6 14.05 28.4 18.4 14.41...
  • Page 31 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MTA-150CRN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 41.0 32.0 14.20 43.7 24.7 14.40 45.1 10.4 14.53 40.5...
  • Page 32 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 36.4 29.8 17.07 37.9 21.4 17.31 39.2 17.46 34.9 28.6 17.26...
  • Page 33 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.9 34.4 28.2 18.43 35.7 20.2 18.79 36.8 19.04 26.7 35.1 31.9 18.48 36.4 23.6 18.84...

  • Page 34: Static Pressure Curve

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 8. Static Pressure Curve MTA-76C(H)RN1 MTA-96C(H)RN1...
  • Page 35 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MTA-120C(H)RN1 MTA-150CRN1...
  • Page 36 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 MHB-76C(H)RN1 MHB-96C(H)RN1...

  • Page 37: Electric Characteristics

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 9. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MTA-76HRN1 220-240V 198V 254V 7.53 1.341 6.02 MTA-76CRN1 220-240V 198V 254V 7.53 1.341 6.02 MTA-96HRN1 220-240V 198V 254V 1.605 7.28...

  • Page 38: Sound Levels

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 10. Sound Levels Concealed Duct Type Duct Suction Discharge 1.4m Microphone Model Noise level 58 dB(A) MTA-76HRN1 MTA-76CRN1 58 dB(A) MTA-96HRN1 61 dB(A) MTA-96CRN1 61 dB(A) 63 dB(A) MTA-120HRN1 MTA-120CRN1 63 dB(A)
  • Page 39 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Floor-standing Type 1. Features ..............39 2. Specifications .............. 40 3. Dimensions ..............43 4. Service Space ............. 43 5. Refrigerant Circuit ............44 6. Wiring Diagrams ............45 7. Capacity Tables ............47 8.

  • Page 40: Features

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 1. Features  Highly capacity of cooling and heating, and energy-saving.  Thin size, even can installed at limited place.  All round steel shell, for high quality protection of transportation.

  • Page 41: Specifications

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 2. Specifications Model MFA-76HRN1 MFA-76CRN1 Power supply 220~240V-1Ph-50Hz Btu/h 75,100/64,800 75,100/64,800 Capacity (T1/T3) 22,000/19,000 22,000/19,000 Cooling Input power (T1/T3) 7,500/8,980 7,500/8,980 EER (T1) 2.93 2.93 Btu/h 85,000 Capacity 25,000 Heating Input power 8,300 3.01...
  • Page 42 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Model MFA-96HRN1 MFA-96CRN1 Power supply 220~240V-1Ph-50Hz Btu/h 95,600/81,500 95,600/81,500 Capacity (T1/T3) 28,000/23,900 28,000/23,900 Cooling Input power (T1/T3) 9,600/11,320 9,600/11,320 EER (T1) 2.92 2.92 Btu/h 105,000 Capacity 31,000 Heating Input power 10,300 3.01...
  • Page 43 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Model MFAT-120CRN1 Power supply 220~240V-1Ph-50Hz Btu/h 121,000/110,900 Capacity (T1/T3) 35,000/32,500 Cooling Input power (T1/T3) 13,000/15,500 EER (T1) 2.69 Btu/h Capacity Heating Input power Rated input (Whole units) 19,200 Rated current (Whole units) 32.5...

  • Page 44: Dimensions

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 3. Dimensions 4. Service Space...

  • Page 45: Refrigerant Circuit

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 5. Refrigerant Circuit Heat pump: MFA-76HRN1, MFA-96HRN1 Cooling only: MFA-96CRN1, MFA-96CRN1, MFAT-120CRN1...

  • Page 46: Wiring Diagrams

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 6. Wiring Diagrams MFA-76HRN1, MFA-96HRN1...
  • Page 47 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MFA-76CRN1, MFA-96CRN1, MFAT-120CRN1...

  • Page 48: Capacity Tables

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 7. Capacity Tables MFA-76C(H)RN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 20.1 16.5 6.48 22.1 12.5 6.68 23.5...
  • Page 49 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 17.5 14.4 8.07 19.1 10.8 8.31 20.4 8.46 16.0 13.1 8.26...
  • Page 50 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.9 15.1 12.4 8.83 16.4 9.19 17.5 9.44 26.7 15.4 14.0 8.85 16.7 10.8 9.21 17.8...
  • Page 51 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MFA-96C(H)RN1 Gross Cooling Capacity (kW) 29.40 35.00 Outdoor DB(° C) Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 25.9 21.2 8.71 28.0 15.8 8.91 29.4 9.04 25.2 20.6...
  • Page 52 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.9 22.3 18.3 10.40 23.9 13.5 10.64 25.1 10.79 20.8 17.1 10.59...
  • Page 53 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.9 20.5 16.8 11.62 21.8 12.3 11.98 22.9 12.23 26.7 20.9 19.0 11.65 22.2 14.4 12.01...
  • Page 54 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 MFAT-120CRN1 Gross Cooling Capacity (kW) Outdoor DB(° C) 29.40 35.00 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.90 28.38 18.92 8.82 29.80 19.87 9.26 31.29 20.86 9.72 27.55...
  • Page 55 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Gross Cooling Capacity (kW) Outdoor DB(° C) 40.60 46.10 Indoor WB(° C) 16.10 19.40 22.80 16.10 19.40 22.80 DB(° C) 23.90 23.27 15.51 10.47 24.44 16.29 10.99 25.66 17.11 11.54 22.59 15.06...
  • Page 56 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Gross Cooling Capacity (kW) Outdoor DB(° C) 51.70 Indoor WB(° C) 16.10 19.40 22.80 DB(° C) 23.90 21.94 14.62 17.16 22.59 15.06 17.52 24.18 16.12 17.77 26.70 22.81 17.55 17.20 23.50 18.08...

  • Page 57: Electric Characteristics

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 8. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MFA-76HRN1 220-240V 198V 254V 0.59 2.773 MFA-76CRN1 220-240V 198V 254V 0.59 2.773 MFA-96HRN1 220-240V 198V 254V 0.59 2.773 MFA-96CRN1 220-240V...

  • Page 58: Accessories

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 10. Accessories Name Qty. Shape Usage Owner’s manual Installation manual Remote controller manual Water connective pipe Connect to water drainage pipe Remote controller Remote controller mounting bracket Placed the remote controller...

  • Page 59: Part. 3 Outdoor Unit

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Part. 3 Outdoor Unit 1. Specifications .............. 59 2. Dimension ..............62 3. Service Space ............. 62 4. Wiring Diagrams ............63 5. Electric Characteristics ..........65 6. Sound Levels ............... 65...

  • Page 60: Specifications

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 1. Specifications Model MOV-76HN1-C MOV-76CN1-C Power supply 380-415V~, 3Ph, 50Hz Ambient temp in cooling ° C 17～52 17～52 Ambient temp in heating ° C -7~24 Rated input (Whole units) 11,700 11,700 Rated current (Whole units) 19.3...
  • Page 61 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Model MOV-96HN1-C MOV-96CN1-C Power supply 380-415V~, 3Ph, 50Hz Ambient temp in cooling ° C 17～52 17～52 Ambient temp in heating ° C -7~24 Rated input (Whole units) 14,400 14,400 Rated current (Whole units) 23.7...
  • Page 62 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Model MOV-120HN1-C MOV-120CN1-C Power supply 380-400V~, 3Ph, 50Hz Ambient temp in cooling ° C 17～52 17～52 Ambient temp in heating ° C -7~24 Rated input (Whole units) 17,300 17,300 Rated current (Whole units) 28.6...

  • Page 63: Dimension

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 2. Dimension MOV-76C(H)N1-C, MOV-96C(H)N1-C: (Unit: mm) MOV-120C(H)N1-C (Unit: mm) 3. Service Space MOVA-76H-D, MOVA-76C-D, MOVA-96H, MOVA-96C Note: 1. In case any obstacles exist above the outdoor unit, such obstacles must be 2000mm above the outdoor unit.

  • Page 64: Wiring Diagrams

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 4. Wiring Diagrams MOV-76HN1-C, MOV-96HN1-C, MOV-120HN1-C: Item Name Item Name Item Name Item Name COMP Compressor HEAT(A) Crank RT3A Pipe temp. sensor Transformer FAN1-2 Outdoor fan Current detector Room temp. sensor...
  • Page 65 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MOV-76CN1-C, MOV-96CN1-C, MOV-120CN1-C: Item Name Item Name Item Name Item Name COMP Compressor HEAT(A) Crank RT3A Pipe temp. sensor Transformer FAN1-2 Outdoor fan Current detector Room temp. sensor SW1-3 Switch CAP1-2...

  • Page 66: Electric Characteristics

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 5. Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA MOV-76HN1-C 380-415V 342V 438V 17.5 20.5 16.5 0.573 2.613 MOV-76CN1-C 380-415V 342V 438V 17.5 20.5 16.5 0.573 2.613...

  • Page 67: Part. 4 Installation

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Part. 4 Installation 1. Notes ................67 2. Installation of Duct Type Indoor Units ......68 3. Installation of Floor-standing Type Indoor Units ... 73 4. Installation of Outdoor Units ........75 5.

  • Page 68: Notes

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 1. Notes CAUTION:  Install the unit where enough space of installation and maintenance is available.  Install the unit where the ceiling is horizontal and enough for bearing the weight of the indoor unit.

  • Page 69: Installation Of Duct Type Indoor Units

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 2. Installation of Duct Type Indoor Units 2.1 Installating indoor units  As the following picture, when install the indoor unit, select the enough solid and level site with enough space for installation and maintance.
  • Page 70 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 MTA-120C(H)RN1, MTA-150CRN1: (Unit: mm)  When the pandant bolt is fixed in wooden structure, please put rectanglar sticks across the beams, and set pendant bolts.  When in the new concrete roughcast environment, please use embedded bolts, embedded pulling plugs and stick harness.
  • Page 71 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz the installation screws to adjust the horizontality. Finally, Tighten the screws. 2.2 Designing and connecting the duct  The duct accessories and materials must be produced by professional manufacturers.  Int order to prevent air flow shoting, do not set the air inlet orifice near the air outlet orifice.
  • Page 72 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 View of air inlet side (Unit: mm) MHA1-150C(H)R, MHA1-192C(H)R: View of air outlet side (Unit: mm) View of air inlet side (Unit: mm)  All pipelines must be connected closely and soundly without leak of air. The pipelines must be adiabatic and free from condensation.
  • Page 73 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 2.3 Install the drainage pipe  In order to prevent faults caused by condensate of the refrigerant pipe and drain pipe, perform condensate prevention and heat insulation properly.  If it is forecast that high humidity and temperature environment (condensate temperature is over 23°...

  • Page 74: Installation Of Floor-Standing Type Indoor Units

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 3. Installation of Floor-standing Type Indoor Units  As the following picture, when install the indoor unit, select the enough solid and level site with enough space for installation and maintance.
  • Page 75 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  There is natural drain, it is should be confirmed that the height of drain pipe is not higher than water collection tray.  The number of bends and folds of the drain pipe should not exceed 2. Try to avoid bends to prevent trash accumulation.

  • Page 76: Installation Of Outdoor Units

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 4. Installation of Outdoor Units  When installing the unit, leave a space for maintenance shown in the following figure. Install the power supply at the side of the outdoor unit.
  • Page 77 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  The distance of the foundation bolt is shown in following picture. MOV-76C(H)N1-C, MOV-96C(H)N1-C, MOV-120C(H)N1-C  As the following shown picture, leave an interval between the multi-outdoor unit.  Snow protection facilities must be installed in the snowfall areas. In order to prevent influence caused by snow, set up raised pavilion, and install snow protection sheds at the air inlet and air outlet.

  • Page 78: Connection Of Refrigerant Pipe

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 5. Connection of Refrigerant Pipe  Schematic diagram of connection between indoor unit and outdoor unit: MTA-76C(H)RN1 + MOV-76C(H)N1-C MTA-96C(H)RN1 + MOV-96C(H)N1-C MTA-120C(H)RN1 + MOV-120C(H)N1-C MTA-150CRN1 + MOV-76C(H)N1-C (2 sets)
  • Page 79 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MFA-76C(H)RN1 + MOV-76C(H)N1-C MFA-96C(H)RN1 + MOV-96C(H)N1-C  The refrigerant pipe adapter is located inside the outdoor unit. So remove the right front board first, totally three pieces of M5 screw. ...
  • Page 80 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  All connections between indoor unit and outdoor unit are copper-to copper and should be brazed with a phosphorous-copper alloy material such as Silfos-5 or equivalent. Do not use soft solder.
  • Page 81 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  Precaution should be taken to prevent heat damage to the valve by wrapping a wet rag around it. Remove the cap and Schrader core from both the liquid and vapor service valve service ports at the outdoor unit.
  • Page 82 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  Evacuate the vapor line, evaporator and the liquid line, to 500 microns or less.  Replace cap on service ports. Do not remove the flare caps from the service ports except when necessary for servicing the system.
  • Page 83 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  Use the refrigerant in the outdoor unit to expel air.  Screw up the pipe nuts at A, B, C and D completely.  Loosen and remove the square-head cover of valves A and B, rotate the square-head spool of valve B counter-clockwise for 45 degrees and stay for about 10 seconds, and then close the spool of valve B tightly.
  • Page 84 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  Use a vacuum pump  Loosen and remove the maintenance orifice nut of valve A, and connect the filler hose of the manifold valve to the maintenance orifice of valve A (Tighten both valve A and valve B).
  • Page 85 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz picture.  Procedure of opening the valve: Open the square-head cover, use a spanner to capture the square head and open it thoroughly. Then tighten the square-head cover.  Procedure of closing the valve: Same as the procedure of opening the valve, but rotate the spanner clockwise thoroughly.

  • Page 86: Heat Insulation Of Refrigerant Pipe

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  Calculate out the refrigerant density: )] ≤ Density threshold: 0.3kg/m [A (kg)] / [B (m  Measures against crossing of the refrigerant density threshold.  In order to keep the refrigerant density below the threshold value, please install a mechanic ventilation device.

  • Page 87: Electric Connection

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz the ceiling with slab, ceiling which is in the same environment as the outdoor air. It is necessary to apply 10mm or thicker adiabatic wool (16~20kg/m ) to the refrigerant pipe and the drain pipe in addition to applying the general heat insulation materials.
  • Page 88 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  Upon completion of wire connection, double check it and then connect the power supply.  An all-pole disconnection device which has at least 3mm separation distance in all pole and a residual current device (RCD) with the rating of above 10mA shall be incorporated in the fixed wiring according to the national rule.
  • Page 89 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Medium static pressure duct: Type Indoor unit Outdoor unit Model MTA-120C(H)RN1 MOV-120C(H)N1-C Power 220-240V~, 1Ph, 50Hz 380~400V~, 3Ph, 50Hz Switch capacity of the main 40A/20A 60A/40A power supply / Fuse Indoor unit power cable 3×2.5mm...
  • Page 90 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Floor-standing type: Type Indoor unit Outdoor unit MFA-76C(H)RN1 MOV-76C(H)N1-C Model MFA-96C(H)RN1 MOV-96C(H)N1-C Power 220-240V~, 1Ph, 50Hz 380~415V~, 3Ph, 50Hz Switch capacity of the main 20A/10A 60A/40A power supply / Fuse Indoor unit power cable 3×2.5mm...
  • Page 91 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 7.3 Schematic diagram Single outdoor unit: Double outdoor units:...
  • Page 92 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 7.4 Electric wire diagram When connect the wire, pay attention to the phase sequence of the power supply. If the phase sequence is reversed, the compressor will not start. Meanwhile, the fault indicator of the outdoor electric control board will light up.
  • Page 93 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz MTA-150CRN1: Notes: Please identify outdoor main unit and auxiliary unit. Only adjust the dial on PCB board of outdoor unit as follows, otherwise incorrect adjustment may cause malfunction. Signal wire of indoor unit connects to outdoor main unit only and the control command to outdoor auxil unit is sent by COM wire connecting with main unit.
  • Page 94 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 MFA-76HRN1, MFA-96HRN1: MFA-76CRN1, MFA-96CRN1, MFAT-120CRN1:...

  • Page 95: Duct Design Scheme

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 8. Duct Design Scheme Examples of construction and ventilation pipeline design scheme (Flowering hidden series.) Construction and ventilation pipeline design scheme...
  • Page 96 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Methods of configuring and selecting installation Material name Characteristics, advantages and other contents 1. Install the filter at the main body grille in case the store height is low, and at the main body of the indoor unit in case the store height is high.
  • Page 97 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 1. Fixed model that diffuses air at a 360 angle. 2. The outline size should increase when the air volume is over 350CMH. (For above 303), i.e., when about 9 diffusers are required, the outline size should increase.

  • Page 98: Trial Run

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 1. Low noise compared with other air outlets. Applicable to tall buildings that require a long distance of air conditioning. 2. Select the ventilation pipe connection caliber according to the distance and the air speed.

  • Page 99: Operation Of Floor-Standing Type Indoor Unit

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  Use the remote controller or wired controller to let the air conditioner run in the cooling mode. Inspect the following items according to the operation manual. If any fault occurs, remove the fault first.
  • Page 100 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  ADJUST: UP and DOWN This button is also called Temperature adjustment key. UP: For increase temperature. Any time press the key, temperature will increase one Celsius degree. When press the key last for more than 1 second, the temperature will increase by 1°...
  • Page 101 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz the light extinction, while the status of selected mode icon is light-on instead of flashing. Power on for the first drive up, after press the ON/OFF, default mode of FAN appear. If...

  • Page 102: Trouble Shooting

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 11. Trouble shooting 11.1 Phenomena not attributable to faults of air conditioner  The system does not run.  After pressing the ON/OFF button, the system does not run immediately. ...
  • Page 103 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  Squeak may occur when the air conditioner starts or stops running. That is the sound raised because the plastic assemblies inflate or deflate when the temperature changes.  Dust is blown out of the indoor unit.
  • Page 104 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Symptom Possible causes Way of handing Power supply fails. Operate it after power supply resumes The power switch is not and connect the power supply properly. connected. The system does The fuse blows out or the circuit Replace the fuse or check whether not run.
  • Page 105 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Symptom Possible causes Way of handing The refrigerant is excessive or Detect leak, and fill the refrigerant of a deficient. correct quantity. Air or non-condensable gas Make a vacuum again and fill the exists in the refrigerant loop.
  • Page 106 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  The display disappears. Symptom Check item Cause After a while the Check whether the time set on The air conditioner stops running ON/OFF display the timer has expired. because the set time has expired.
  • Page 107 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 11.4 Duct type indoor unit malfunction and protection codes  Names of indicators in receiving kit Display content Fault or protection meaning All lamps flashing at Lack of neutral line. Timer lamp flashing T1, room temperature sensor, fault of open circuit, short circuit.
  • Page 108 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Timer lamp flashing at 5Hz, Operation lamp flashing at 5Hz Defrosting lamp flashing at 5Hz For these series products, if the condenser temperature sensor malfunction is displayed, it is enough to check whether wiring has problem. If the wiring is correct, the PCB should be replaced.
  • Page 109 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz E1, E2...
  • Page 110 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 11.6 Outdoor unit malfunction and protection codes Type LED1 LED2 Phase sequence protection ◆ ●★ Communication failure ◆ ●●★ Outdoor condenser temp. sensor error ◆ ●●●★ Outdoor ambient temp. sensor error ◆...
  • Page 111 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Phase sequence or lack of phase Communication error...
  • Page 112 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Condenser temperature sensor error Ambient temperature sensor error Hi-temperature protection of compressor discharger...
  • Page 113 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz System low pressure protection...
  • Page 114 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 System high pressure protection Current overload protection...

  • Page 115: Maintenance

    MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz High temperature protection of condenser 12. Maintenance  Operation required before leaving the unit idle for a long period.  Let the air conditioner run in the fan mode for about half a day, and let its interior be fully dry.
  • Page 116 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 and then cut off the power supply.  Startup after a long period out of service. Check the following issues: Check whether the air inlet or outlet of the indoor unit and outdoor unit is blocked.
  • Page 117 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  If the stain is heavy and difficult to clean, replace the filter.  Do not replace the power cable without permission. If the power cable is damaged, specialized power cable must be used as substitute.

  • Page 118: Part. 5 Controller

    Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Part. 5 Controller 1. Wireless Remote Controller (Standard) ...... 118 2. Wired Controller: KJR-29B (Optional) ......124 3. Centralized Controller: MD-CCM03(A) (Optional) ..136...
  • Page 119 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 1. Wireless Remote Controller (Standard) 1.1 Remote controller specifications Model R51/E Rated Voltage 3.0V Lowest Voltage of CPU Emitting Signal 2.0V Reaching Distance 8m (when using 3.0 voltage, it Gets 11m) Environment Temperature Range -5°...
  • Page 120 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 2. MODE Select Button: Each time you push the button, a mode is selected in a sequence that goes from AUTO, COOL, DRY, HEAT and FAN as the following figure indicates: 3.
  • Page 121 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 1.3 Names and functions of indicators on remote controller ①TRANSMISSION Indicator: This indicator lights when remote controller transmits signals to indoor unit. ② MODE Display: Show the current operation modes-- AUTO, COOL, DRY and HEAT. HEAT is only available for heat pump model.
  • Page 122 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 ※ To install batteries, slide back the cover of the battery compartment and install the batteries according to the directions (+and -) shown on the Remote Controller. ※ To replace the old batteries, use the same method as mentioned above.
  • Page 123 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz HEATING mode, the most comfortable settings are 28 or below. ° C ※ Push the FAN SPEED to select the FAN mode of AUTO, HIGH, MED or LOW. ※ Push the ON/OFF button. The operation lamp lights and the air conditioner start to operate per your settings.
  • Page 124 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 ※ Push the TIMER button and the remote controller will show the last set time for the START operation and the signal "h" will be shown on the display panel. You are now ready to readjust the TIMER OFF to stop the operation.
  • Page 125 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 2. Keep the Remote Controller away any liquids. 3. Protect the Remote Controller from high temperatures and exposure to radiation. 4. Keep the indoor receiver out of direct sunlight or the air conditioner may malfunction.
  • Page 126 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 2.2 Wired controller outlook 2.3 Operation instructions 1) Remote signal receiving function: the wired controller can be a remote signal receiving device, it is possible to use the wireless remote controller to control the air conditioner through the wired controller when the system have been powered on.
  • Page 127 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 3) Set the operating mode Press the mode button to set the operating mode, after each button press the operating mode will circle as follow: Notes: When the controller has been set to cool only, then there is no HEAT mode.
  • Page 128 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Under the timer on setting status, press the timer/clock setting button , then enter into the timer off setting status, and the screen will display The setting method of timer off is the same as the timer on.
  • Page 129 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Under the locking state, the wired controller will not respond to the buttons pressing and the control instruction from the wireless remote controller. Simultaneously press the temperature adjusting buttons again can cancel the locking state.
  • Page 130 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 2.4 Installation of wired controller 1) Safety precaution  Stated below are important safety issues that must be obeyed. Confirm there is no abnormal phenomena during test operation after complete. ...
  • Page 131 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 3) Supplied assemblies on the site Qty (Embedded Specification (Only Name Remarks into wall) for reference) 4-core shielded cable 0.5mm ×4 The longest is 15m. 86 Electrician box Wiring tube (Insulating sleeve and tightening screw.)
  • Page 132 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  Wiring principle sketch:  Wiring figure: Connect two terminals of embedded 4-core shielding wire with the switching wires of wired controller and signal receiving board. Make sure the sequence of 4 terminals (A, B, C and D) should correspond to the wire sequence of signal switching wires (A, B, C and D).
  • Page 133 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Use straight head screwdriver to insert into the buckling position in the bottom of wired controller, and spin the screwdriver to take down the back cover. Pay attention to spinning direction, otherwise will damage the back cover.
  • Page 134 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Use cross head screws to fix the wired controller bottom cover in the electrical box through the screw bar. Make sure the wired controller bottom cover is on the same level after installation, and then install the wired controller back to the bottom cover.
  • Page 135 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz Avoid the water enter into the wired controller, use trap and putty to seal the connectors of wires during wiring installation. When under installation, reserve certain length of the connecting wire for convenient to take down the wired controller while during maintenance.
  • Page 136 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Step2: The value of the first code ‘X’ is ‘0’, press the temperature setting buttons to adjust the second code value. Step3: After setting the second code value, press Quiet/OK button to switch the first code to the next value.
  • Page 137 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 3. Centralized Controller: MD-CCM03(A) (Optional) 3.1 Centralized controller specifications Model MD-CCM03(A) Power Supply Voltage 220~240V 50Hz 1Ph Ambient Temperature Range -15° C～43° C Ambient Humidity Range RH40%~RH90% Performance Features 1. System composition, centralized control.
  • Page 138 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 single-machine setting is selected, the operation is performed for the air conditioner of the current address only. If the remote controller of the air conditioner is locked currently, issue the lock command; otherwise, send the lock command. If the single-machine mode is not selected, and the remote controller of one or more currently selected air conditioners is locked, issue the unlock command;...
  • Page 139 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz the key again, and the operation will be performed for all air conditioners in the network. Press it repeatedly to shift between single setting and global setting. 4) QUERY: Any time when pressing the key, the selected operation mode is to query the operation status of the air conditioner.
  • Page 140 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 previous air conditioner will be displayed. If it is currently on the first machine, press it again, and the data of the last machine will be displayed. If this key was held down, the address will decrease one by one.
  • Page 141 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz the last page will be displayed. In the setting mode, every time when pressing the key, if it is in the temperature regulation mode, the set temperature will decrease by 1° C (or 2° C) until the lowest allowed set temperature.
  • Page 142 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 result is the same as the result of restoring power-on after power failure. 16) ON/OFF: Any time when pressing the key, the centralized startup/shutdown operation is performed for all current in-service air conditioners in the centralized controller network. If all in-service air conditioners in the network are in the power-off status, press the key to perform the startup operation.
  • Page 143 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz : The matrix is composed of 4×16 grids and each grid is composed of two blocks of different sizes. The matrix include horizontal coordinates 00-15 and vertical coordinates 00+, 16+, 32+ and 48+, which indicate the address of the indoor unit.
  • Page 144 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 controller is a master, and the air conditioner is a slave. In the LAN composed of computer and centralized controller, the computer or gateway is a master, and the centralized controller is a slave.
  • Page 145 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz indicator goes off. If an in-service air conditioner in the network is faulty, or the centralized controller network itself is faulty, the indicator will blink at 2Hz. If one or more in-service air conditioners in the network are running, including under setting of timing start or shutdown, the indicator will be luminous.
  • Page 146 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 until the foregoing switch is turned off. If the foregoing two switches are turned on concurrently, the emergent shutdown switch shall have preference. 3.5 General display data entries 1) General display data is displayed in all display pages.
  • Page 147 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz  Indoor temperature display: display range: 00~99° C. The indoor temperature is displayed concurrently. If the temperature is higher than 99° C, 99° C will be displayed. If the temperature value is invalid, ‘--‘ will be displayed.
  • Page 148 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 In the matrix, the bid dots from (00, 16+) to (15, 32+) are luminous, and the small dots are not luminous. It indicates the 32 air conditioners with the addresses from 16 to 47 are powered off.
  • Page 149 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz In the matrix, only the big and small black dots at (00, 00+) and (01, 00+) are luminous. It indicates the in-service and power-on status of the air conditioners with the addresses of 00 and 01.
  • Page 150 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 The centralized controller communicates with the computer normally. Fault code table: Fault code Fault content Other faults Outdoor unit fault protection Over-current of compressor (4 times) Fault of communication between main board and display board...
  • Page 151 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 3.6 Installation The wireless remote controller is the standard controller for split series air conditioner. Wired controller as optional controller can directly be connected with the display board of the indoor units.
  • Page 152 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 Dimension of MD-NIM01 Connect the network interface module with the port CN20 in the main PCB board of indoor unit through the signal wire, which is as the attachment of the module.
  • Page 153 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz According to size of the hole in controller body, fix the controller on the place as needed. (Unit:...
  • Page 154 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501 3) The wire connection...
  • Page 155 MCAC-UTSM-201501 Midea R410A T3 Top-discharge Split Type Series 50Hz 4) System wiring instruction  Wiring diagram of building network air conditioning system Wiring diagram with good communication effect Wiring diagram with poor communication effect (not recommended because it may lead...
  • Page 156 Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501  System wiring diagram of centralized monitoring and indoor unit of air conditioner Both of the following wiring modes of centralized monitor and indoor unit are applicable: (Quantity of indoor units connected with each centralized monitor is less than or equal to 64).

This manual is also suitable for:

Mta-150crn1Mhb-76c(h)rn1Mta-96c(h)rn1Mhb-96c(h)rn1Mta-120c(h)rn1Mfa-76c(h)rn1 ... Show all

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