Midea MVC28A-VA1 Service Manual

Miv v4+ indoor units

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Service manual

MIV V4+ Indoor units
Four-way Cassette Type
MVC28A-VA1
MVC36A-VA1
MVC45A-VA1
MVC56A-VA1
MVC71A-VA1
DM12-01.01.02-01en
MVC80A-VA1
MVC90A-VA1
MVC100A-VA1
MVC112A-VA1
MVC140A-VA1

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Summary of Contents for Midea MVC28A-VA1

  • Page 1: Service Manual

    DM12-01.01.02-01en Service manual MIV V4+ Indoor units Four-way Cassette Type MVC28A-VA1 MVC80A-VA1 MVC36A-VA1 MVC90A-VA1 MVC45A-VA1 MVC100A-VA1 MVC56A-VA1 MVC112A-VA1 MVC71A-VA1 MVC140A-VA1...
  • Page 2: Table Of Contents

    DM12-01.01.02-01en MIV V4+ Indoor Units Four-way Cassette Type 1. Features ..................... 2   2. Specifications ..................4   3. Dimensions ..................7   4. Service Space ..................8   5. Piping Diagram .................. 9   6. Wiring Diagram ................10  ...
  • Page 3: Features

    MIV V4+ Indoor Units DM12-01.01.02-01en 1. Features (1) 360° Air outlet panel (2) Low operation noise —Streamline plate ensures quietness —Creates natural and comfortable environment (3) Efficient cooling——Equal, fast and wide range cooling (4) Excellent performance. Higher heat-exchanging efficiency and lower noise. The optimal evaporator &...
  • Page 4 DM12-01.01.02-01en MIV V4+ Indoor Units (8) Drainage pump can take up the condenser water to 750mm. (9) Ultra-thin machine body to easy installation and maintenance: 2.8kW~8.0kW:230mm, 9.0kW~14kW:300mm. (10) Swing angle of louver Add one more swing motor, one motor driving two louvers. Controlling the interspace of each part, minimizing the angle loss.
  • Page 5: Specifications

    MIV V4+ Indoor Units DM12-01.01.02-01en 2. Specifications Model MVC28A-VA1 MVC36A-VA1 MVC45A-VA1 Power supply V-Ph-Hz 220-240V, 1Ph, 50Hz Capacity Cooling Input Rated current Capacity Heating Input Rated current Model YDK60-6F-3 YDK60-6F-3 YDK60-6F-3 Type AC motor AC motor AC motor Brand Welling...
  • Page 6 DM12-01.01.02-01en MIV V4+ Indoor Units Model MVC56A-VA1 MVC71A-VA1 MVC80A-VA1 Power supply V- Ph-Hz 220-240V, 1Ph, 50Hz Capacity Cooling Input Rated current Capacity Heating Input Rated current Model YDK60-6F-3 YDK80-6E-2 YDK80-6E-2 Type AC motor AC motor AC motor Brand Welling Welling Welling Indoor fan motor Input...
  • Page 7 MIV V4+ Indoor Units DM12-01.01.02-01en Model MVC90A-VA1 MVC100A-VA1 MVC112A-VA1 MVC140A-VA1 Power supply V- Ph-Hz 220-240V, 1Ph, 50Hz Capacity 10.0 11.2 14.0 Cooling Input Rated current Capacity 10.0 11.0 12.5 15.0 Heating Input Rated current Model YDK90-6E-1 YDK90-6E-1 YDK90-6E-1 YDK90-6E-1 Type AC motor AC motor AC motor...
  • Page 8: Dimensions

    DM12-01.01.02-01en MIV V4+ Indoor Units 3. Dimensions Indoor unit model A(mm) B(mm) C(mm) D(mm) MVC28A-VA1 ~ MVC45A-VA1 Φ6.35 Φ12.7 MVC56A-VA1 ~ MVC80A-VA1 Φ9.52 Φ15.9 MVC90A-VA1 ~ MVC140A-VA1 Φ9.52 Φ15.9 Four-way Cassette Type MVC-A-VA1...
  • Page 9: Service Space

    The air flow can reach throughout the room. The connecting pipe and drainpipe could be extracted out easily. There is no direct radiation from heaters. Indoor unit A(mm) H(mm) MVC28A-VA1 ~ MVC80A-VA1 ≥260 MVC90A-VA1 ~ MVC140A-VA1 ≥330 Four-way Cassette Type MVC-A-VA1...
  • Page 10: Piping Diagram

    DM12-01.01.02-01en MIV V4+ Indoor Units 5. Piping Diagram motor flare nut gas side heat exchanger flare nut liquid side Four-way Cassette Type MVC-A-VA1...
  • Page 11: Wiring Diagram

    MIV V4+ Indoor Units DM12-01.01.02-01en 6. Wiring Diagram MVC28A-VA1, MVC36A-VA1, MVC45A-VA1, MVC56A-VA1, MVC71A-VA1, MVC80A-VA1, MVC90A-VA1, MVC100A-VA1, MVC112A-VA1, MVC140A-VA1 Four-way Cassette Type MVC-A-VA1...
  • Page 12: Capacity Tables

    DM12-01.01.02-01en MIV V4+ Indoor Units 7. Capacity Tables 7.1 Cooling TC: total capacity SC: sensible capacity WB: wet-bulb temperature DB: dry-bulb temperature Indoor temperature ( WB/DB) Indoor Outdoor 14/20 16/23 18/26 19/27 20/28 22/30 24/32 Unit size temperature (kW) ( DB) 10.0 12.0 14.0...
  • Page 13 MIV V4+ Indoor Units DM12-01.01.02-01en 44.0 46.0 10.0 12.0 14.0 16.0 18.0 20.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 35.0 37.0 39.0 42.0 44.0 46.0 10.0 12.0 14.0 16.0 18.0 20.0 21.0 23.0 25.0 27.0 29.0 31.0 33.0 35.0 37.0 39.0 42.0...
  • Page 14 DM12-01.01.02-01en MIV V4+ Indoor Units 21.0 10.6 10.6 23.0 10.6 10.5 25.0 10.6 10.4 27.0 10.3 10.4 29.0 10.1 10.3 31.0 10.0 33.0 35.0 37.0 39.0 42.0 44.0 46.0 10.0 10.0 10.6 11.9 13.0 12.0 10.0 10.6 11.9 12.8 14.0 10.0 10.6 11.9...
  • Page 15 MIV V4+ Indoor Units DM12-01.01.02-01en 37.0 11.3 13.2 14.0 14.6 15.1 15.0 39.0 11.3 13.2 14.0 14.3 14.6 15.0 42.0 11.3 13.2 14.0 14.3 14.6 15.0 44.0 11.3 13.2 14.0 14.3 14.6 15.0 46.0 11.3 13.2 14.0 14.3 14.6 15.0 7.2 Heating TC: total capacity WB: wet-bulb temperature...
  • Page 16 DM12-01.01.02-01en MIV V4+ Indoor Units 6.00 7.00 5.00 5.00 5.00 4.85 4.60 4.20 7.90 9.00 5.15 5.15 5.00 4.85 4.60 4.20 9.80 11.00 5.30 5.30 5.00 4.85 4.60 4.20 11.80 13.00 5.50 5.40 5.00 4.85 4.60 4.20 13.70 15.00 5.65 5.40 5.00 4.85...
  • Page 17 MIV V4+ Indoor Units DM12-01.01.02-01en -14.7 6.50 6.50 6.50 6.50 6.50 6.50 -13.00 -12.60 6.70 6.70 6.70 6.70 6.70 6.70 -11.00 -10.50 7.00 7.00 7.00 7.00 7.00 7.00 -10.00 -9.50 7.30 7.30 7.30 7.30 7.30 7.30 -9.10 -8.50 7.50 7.50 7.50 7.50 7.50...
  • Page 18 DM12-01.01.02-01en MIV V4+ Indoor Units -0.7 13.8 13.8 13.8 13.8 13.8 13.0 14.6 14.6 14.6 14.6 14.3 13.0 15.0 15.0 15.0 15.0 14.3 13.0 15.5 15.5 15.5 15.0 14.3 13.0 16.0 16.0 15.5 15.0 14.3 13.0 11.0 16.4 16.4 15.5 15.0 14.3 13.0...
  • Page 19: Electric Characteristics

    MIV V4+ Indoor Units DM12-01.01.02-01en 8. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MVC28A-VA1 50Hz 220-240V 198V 254V 0.06 0.38 MVC36A-VA1 50Hz 220-240V 198V 254V 0.06 0.38 MVC45A-VA1 50Hz 220-240V 198V 254V 0.06 0.38 MVC56A-VA1 50Hz 220-240V...
  • Page 20: Sound Levels

    2, Anechoic chamber conversion value, measured at a point 1m in front of the unit at a height of 1.4m 9.2 Test data (Sound Pressure Levels) Noise level under three speeds of fan (dB(A)) Model MVC28A-VA1 MVC36A-VA1 MVC45A-VA1 MVC56A-VA1 MVC71A-VA1...
  • Page 21 MIV V4+ Indoor Units DM12-01.01.02-01en MVC90(100,112)A-VA1 MVC140A-VA1 Audibility limits of Audibility limits of continuous white continuous white sound sound Octave band center frequency ( Hz ) Octave band center frequency ( Hz ) Four-way Cassette Type MVC-A-VA1...

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