Midea MVC28A-VA1 User manual

DM12-01.01.02-01en

Service manual

MIV V4+ Indoor units

Four-way Cassette Type

MVC28A-VA1

MVC36A-VA1

MVC45A-VA1

MVC56A-VA1

MVC71A-VA1

MVC80A-VA1

MVC90A-VA1

MVC100A-VA1

MVC112A-VA1

MVC140A-VA1

DM12-01.01.02-01en MIV V4+ Indoor Units

Four-way Cassette Type MVC-A-VA1

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

7. Capacity Tables ............................................................................... 11

8. Electric Characteristics ..................................................................18

9. Sound Levels...................................................................................19

MIV V4+ Indoor Units DM12-01.01.02-01en

Four-way Cassette Type MVC-A-VA1

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 & sufficient airflow volume guarantees the excellent capacity

(5) The adoption of the most advanced 3- Dimensional Screw fan

—Reduces the air resistance passing through

—Smoothes the air flow

—Makes air speed distribution to the heat exchange uniform

(6) Adding digital tube displaying on the display board. LED can display the Error Code to make the

malfunction checking easier.

(7) Fresh air makes life healthier and more comfortable.

DM12-01.01.02-01en MIV V4+ Indoor Units

Four-way Cassette Type MVC-A-VA1

(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

1) Add one more swing motor, one motor driving two louvers. Controlling the interspace of each part,

minimizing the angle loss.

2) The swing angle of the first louver are 40~42 degrees and the second louver are 37~38 degrees. New

evaporator and inner configuration designed can acquire high heat-exchanger effect.

(11) More strengthening rib design around the panel, preventing the distortion for the panel.

(12) New outlet frame design to make the phenomena of coagulation great improvement: prevent the

condensing water from damaging the air guide strip.

(13) Adding rib on the panel of fan outlet, which can avoid the air outlet direct flow to people.

(14) Reserve spaces for air side-outlet, it is available to connect duct pipe hence. Air supplying from

the four sides to nearby small room.

(15) Optimal design, smaller Control Box, Space saving and convenient for wiring,

Using fire resistance galvanized steel for E-box material. Metal box make the control part more stable and

prevent damaging

MIV V4+ Indoor Units DM12-01.01.02-01en

Four-way Cassette Type MVC-A-VA1

2. Specifications

Model MVC28A-VA1 MVC36A-VA1 MVC45A-VA1

Power supply V-Ph-Hz 220-240V, 1Ph, 50Hz

Cooling

Capacity kW 2.8 3.6 4.5

Input W 80 80 90

Rated current A 0.4 0.4 0.4

Heating

Capacity kW 3.2 4.0 5.0

Input W 80 80 90

Rated current A 0.4 0.4 0.4

Indoor fan motor

Model YDK60-6F-3 YDK60-6F-3 YDK60-6F-3

Type AC motor AC motor AC motor

Brand Welling Welling Welling

Input W 98/85/75/70 98/85/75/70 98/85/75/70

Capacitor uF 2.5 2.5 3

Speed (hi/mid/lo) r/min (782)/600/509/422 (782)/600/509/422 (808)/652/547/467

Indoor coil

Number of rows 1 1 2

Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37

Fin spacing mm 1.5 1.5 1.5

Fin type Hydrophilic Aluminum Hydrophilic Aluminum Hydrophilic Aluminum

Tube outside dia. and type mm Ф7,Innergroove Tube

Coil length x height x width mm 1930x168x13.37 1930x168x13.37 1961x168x26.74

Number of circuits 4 4 8

Indoor air flow (H/M/L) m3/h 847/766/640 847/766/640 864/755/658

Indoor noise level (Hi/Mid/Lo) dB(A) 42/38/35 42/38/35 42/38/35

Indoor unit

Dimension (WxHxD) mm 840x230x840 840x230x840 840x230x840

Packing (WxHxD) mm 955X247X955 955X247X955 955X247X955

Net/Gross weight kg 24/28 24/28 26/30

Panel

Model T-MBQ-02F1

Dimension (WxHxD) mm 950x46x950 950x46x950 950x46x950

Packing (WxHxD) mm 1000x60x1000 1000x60x1000 1000x60x1000

Net/Gross weight kg 6/8 6/8 6/8

Refrigerant type R410A R410A R410A

Throttle Electric expansive valve

Design pressure MPa 4.2/2.0 4.2/2.0 4.2/2.0

Refrigerant piping Liquid side/ Gas side mm Φ6.4/Φ12.7 Φ6.4/Φ12.7 Φ6.4/Φ12.7

Connecting wiring

Power wiring Nb×mm23×2.5(L≤20m)；3×3.5(L≤50m)

Signal wiring Nb×mm23×0.75 3×0.75 3×0.75

Drainage water pipe dia. mm IDФ28.5 ODФ32 IDФ28.5 ODФ32 IDФ28.5 ODФ32

Standard Controller Wireless remote controller (RM05/BG(T)E-A) , to set address

Operation temp C 17～30

Notes:

1. Nominal cooling capacities are based on the following conditions: return air temp.: 27°CDB, 19°CWB, and outdoor

temp.:35°CDB, equivalent ref. piping: 8m (horizontal)

2. Nominal heating capacities are based on the following conditions: return air temp.: 20°CDB, outdoor temp.: 7°CDB, 6°CWB,

and equivalent ref. Piping: 8m (horizontal)

DM12-01.01.02-01en MIV V4+ Indoor Units

Four-way Cassette Type MVC-A-VA1

Model MVC56A-VA1 MVC71A-VA1 MVC80A-VA1

Power supply V- Ph-Hz 220-240V, 1Ph, 50Hz

Cooling

Capacity kW 5.6 7.1 8.0

Input W 75 82 97

Rated current A 0.4 0.5 0.5

Heating

Capacity kW 6.3 8.0 9.0

Input W 75 82 97

Rated current A 0.4 0.5 0.5

Indoor fan motor

Model YDK60-6F-3 YDK80-6E-2 YDK80-6E-2

Type AC motor AC motor AC motor

Brand Welling Welling Welling

Input W 98/85/75/70 120/110/100/90 120/110/100/90

Capacitor uF 3 3 3

Speed (hi/mid/lo) r/min (808)/652/547/467 (877)/755/627/490 (800)/777/662/525

Indoor coil

Number of rows 2 2 2

Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37

Fin spacing mm 1.5 1.5 1.5

Fin type Hydrophilic Aluminum Hydrophilic Aluminum Hydrophilic Aluminum

Tube outside dia. and type mm Ф7, Innergroove Tube

Coil length x height x width mm 1961x168x26.74 1961x168x26.74 1961x168x26.74

Number of circuits 8 8 8

Indoor air flow (H/M/L) m3/h 864/755/658 1157/955/749 1236/973/729

Indoor noise level (Hi/Mid/Lo) dB(A) 42/38/35 45/42/39 45/42/39

Indoor unit

Dimension (WxHxD) mm 840x230x840 840x230x840 840x230x840

Packing (WxHxD) mm 955X247X955 955X247X955 955X247X955

Net/Gross weight kg 26/30 26/30 26/30

Panel

Model T-MBQ-02F1

Dimension (WxHxD) mm 950x46x950 950x46x950 950x46x950

Packing (WxHxD) mm 1000x60x1000 1000x60x1000 1000x60x1000

Net/Gross weight kg 6/8 6/8 6/8

Refrigerant type R410A R410A R410A

Throttle Electric expansive valve

Design pressure MPa 4.4/2.6 4.4/2.6 4.4/2.6

Refrigerant piping Liquid side/ Gas side mm Φ9.5/Φ15.9 Φ9.52/Φ15.9 Φ9.52/Φ15.9

Connecting wiring

Power wiring Nb×mm23×2.5(L≤20m)；3×3.5(L≤50m)

Signal wiring Nb×mm23×0.75 3×0.75 3×0.75

Drainage water pipe dia. mm IDФ28.5 ODФ32 IDФ28.5 ODФ32 IDФ28.5 ODФ32

Standard Controller Wireless remote controller (RM05/BG(T)E-A) , to set address

Operation temp C 17～30

Notes:

1. Nominal cooling capacities are based on the following conditions: return air temp.: 27°CDB, 19°CWB, and outdoor

temp.:35°CDB, equivalent ref. piping: 8m (horizontal)

2. Nominal heating capacities are based on the following conditions: return air temp.: 20°CDB, outdoor temp.: 7°CDB, 6°CWB,

and equivalent ref. Piping: 8m (horizontal)

MIV V4+ Indoor Units DM12-01.01.02-01en

Four-way Cassette Type MVC-A-VA1

Model MVC90A-VA1 MVC100A-VA1 MVC112A-VA1 MVC140A-VA1

Power supply V- Ph-Hz 220-240V, 1Ph, 50Hz

Cooling

Capacity kW 9.0 10.0 11.2 14.0

Input W 160 160 160 170

Rated current A 0.7 0.7 0.7 0.8

Heating

Capacity kW 10.0 11.0 12.5 15.0

Input W 160 160 160 170

Rated current A 0.7 0.7 0.7 0.8

Indoor fan motor

Model YDK90-6E-1 YDK90-6E-1 YDK90-6E-1 YDK90-6E-1

Type AC motor AC motor AC motor AC motor

Brand Welling Welling Welling Welling

Input W 165/143/114/93 165/143/114/93 165/143/114/93 204/175/140/120

Capacitor uF 3.5 3.5 3.5 4

Speed (hi/mid/lo) r/min 770/640/550 770/640/550 770/640/550 820/750/620

Indoor coil

Number of rows 2 2 2 2

Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37 21x13.37

Fin spacing mm 1.5 1.5 1.5 1.5

Fin type Hydrophilic Aluminum

Tube outside dia. and type mm Ф7, Innergroove Tube

Coil length x height x width mm 1955x252x26.74 1955x252x26.74 1955x252x26.74 1955x252x26.74

Number of circuits 8 8 8 12

Indoor air flow (H/M/L) m3/h 1540/1300/1120 1540/1300/1120 1540/1300/1120 1800/1500/1280

Indoor noise level (Hi/Mid/Lo) dB(A) 48/45/43 48/45/43 48/45/43 50/47/44

Indoor unit

Dimension (WxHxD) mm 840x300x840 840x300x840 840x300x840 840x300x840

Packing (WxHxD) mm 955X317X955 955X317X955 955X317X955 955X317X955

Net/Gross weight kg 32/37 32/37 32/37 32/37

Panel

Model T-MBQ-02F1

Dimension (WxHxD) mm 950x46x950 950x46x950 950x46x950 950x46x950

Packing (WxHxD) mm 1000x60x1000 1000x60x1000 1000x60x1000 1000x60x1000

Net/Gross weight kg 6/8 6/8 6/8 6/8

Refrigerant type R410A

Throttle Electronical expansive valve

Design pressure MPa 4.4/2.6 4.4/2.6 4.4/2.6 4.4/2.6

Refrigerant piping Liquid side/ Gas side mm Φ9.52/Φ15.9 Φ9.52/Φ15.9 Φ9.52/Φ15.9 Φ9.52/Φ15.9

Connecting wiring

Power wiring Nb×mm23×2.5(L≤20m)；3×3.5(L≤50m)

Signal wiring Nb×mm23×0.75 3×0.75 3×0.75 3×0.75

Drainage water pipe dia. mm IDФ28.5 ODФ32 IDФ28.5 ODФ32 IDФ28.5 ODФ32 IDФ28.5 ODФ32

Standard Controller Wireless remote controller (RM05/BG(T)E-A) , to set address

Operation temp C 17～30

Notes:

1. Nominal cooling capacities are based on the following conditions: return air temp.: 27°CDB, 19°CWB, and outdoor

temp.:35°CDB, equivalent ref. piping: 8m (horizontal)

2. Nominal heating capacities are based on the following conditions: return air temp.: 20°CDB, outdoor temp.: 7°CDB, 6°CWB,

and equivalent ref. Piping: 8m (horizontal)

DM12-01.01.02-01en MIV V4+ Indoor Units

Four-way Cassette Type MVC-A-VA1

3. Dimensions

Indoor unit model A(mm) B(mm) C(mm) D(mm)

MVC28A-VA1 ～MVC45A-VA1 230 170 Φ6.35 Φ12.7

MVC56A-VA1 ～MVC80A-VA1 230 170 Φ9.52 Φ15.9

MVC90A-VA1 ～MVC140A-VA1 300 190 Φ9.52 Φ15.9

MIV V4+ Indoor Units DM12-01.01.02-01en

Four-way Cassette Type MVC-A-VA1

4. Service Space

1) There is enough room for installation and maintenance.

2) The ceiling is horizontal, and its structure can endure the weight of the indoor unit.

3) The outlet and the inlet are not impeded, and the influence of external air is the least.

4) The air flow can reach throughout the room.

5) The connecting pipe and drainpipe could be extracted out easily.

6) There is no direct radiation from heaters.

Indoor unit A(mm) H(mm)

MVC28A-VA1 ～MVC80A-VA1 230 ≥260

MVC90A-VA1 ～MVC140A-VA1 300 ≥330

DM12-01.01.02-01en MIV V4+ Indoor Units

Four-way Cassette Type MVC-A-VA1

5. Piping Diagram

flare nut

T2B

gas side

motor

heat exchanger

fan

EXV

liquid side

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