Midea MVD22A-VA1, MVD28A-VA1, MVD36A-VA1, MVD45A-VA1 Service Manual

DM12-01.01.02-08en

Service manual

MIV V4+ Indoor units

Console Type

MVD22A-VA1

MVD28A-VA1

MVD36A-VA1

MVD45A-VA1

DM12-01.01.02-08en MIV V4+ Indoor Units

Console Type MVD-A-VA1 1

Console Type

1. Feature ............................................................................... 2

2. Specifications .................................................................... 4

3. Dimension .......................................................................... 5

4. Service Space .................................................................... 6

5. Piping Diagrams................................................................ 7

6. Wiring Diagram ................................................................. 8

7. Capacity Tables ................................................................. 9

8. Electric Characteristics .................................................. 13

9. Noise Levels .................................................................... 14

MIV V4+ Indoor Units DM12-01.01.02-08en

2 Console Type MVD-A-VA1

1. Feature

1.1 Console type

1.2 Compact unit body, space saving, nice-looking appearance

1.2.1. This unit body is very thin and harmonious with room. It is elegant and space saving.

1.2.2. The EXV is fixed inside of the indoor unit, compact unit body.

1.3 Flexible installation

1.3.1. Can be used for floor standing or lower wall applications

1.3.2. As a floor standing type, it can be semi or fully recessed without loss of capacity.

1.4 High efficiency filter

1.4.1. Built in Formaldehyde nemesis filter

1.4.2. Active-carbon and biological anti-virus filter is optional.

1.5 High Comfort

1.5.1. Flexible air blow: vertical auto swing and wide angle louvers ensure that warm air reaches the

furthest corners of the room and increase the air flow coverage

1.5.2. Indoor unit adopts DC motor which has five level fan speed meet different requirements.

1.5.3. Low noise operation, lowest to 26dB(A)

1.5.4. Adoption of the Fujikoki brand mechanical expansion valve which has 2000 stages element
positioning, ensure precise flow control, as well lower modulation noise when EXV operating.

1.6 Powerful mode can be selected for rapid cooling or heating.

COOLING MODE HEATING MODE

Quick cooling to maintain temp. anti-cold air normal operation

DM12-01.01.02-08en MIV V4+ Indoor Units

Console Type MVD-A-VA1 3

Air outlet from 2 optional directions:

Quick cooling mode: air supplying from both top and bottom

Normal cooling mode: from top only

Normal heating mode: air supplying from both top and bottom

Anti-cold fan mode: from top only

Air inlet from 4 directions:

Bottom, Top, and right/left side, for better ventilation.

1.7 Easy cleaning grille and convenient maintenance

MIV V4+ Indoor Units DM12-01.01.02-08en

4 Console Type MVD-A-VA1

2. Specifications

Model MVD22A-VA1 MVD28A-VA1 MVD36A-VA1 MVD45A-VA1

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

Cooling

Capacity kW 2.2 2.8 3.6 4.5

Input W 20 25 25 45

Rated current A 0.09 0.11 0.11 0.20

Heating

Capacity kW 2.6 3.2 4.0 5.0

Input W 20 25 25 45

Rated current A 0.09 0.11 0.11 0.20

Indoor fan
motor

Model RD-280-20-8A RD-280-20-8A RD-280-20-8A RD-280-20-8A

Type DC brushless motor

Brand Welling

Input W 16.8 19.5 19.5 30.5

Speed (hi/mid/lo) r/min 560/530/460 610/560/460 610/560/460 780/680/530

Indoor coil

Number of rows 1 1.5 2 2

Tube pitch(a)*row pitch(b) mm 21*13.37 21*13.37 21*13.37 21*13.37

Fin spacing mm 1.3 1.3 1.3 1.3

Fin type Hydrophilic aluminum

Tube outside diameter and
type

mm

Ф7

Inner groove tube

Coil length* height *width mm 512*318*22 512*318*44 512*318*44 512*318*44

Number of circuits 1 2 2 2

Indoor air flow (H/M/L) m3/h 430/345/229 510/430/229 510/430/229 660/512/400

Indoor noise level dB(A) 38/32/26 39/33/27 39/33/27 42/39/36

Indoor unit

Dimension (W×H×D) mm 700*600*210

Packing (W×H×D) mm 810*710*305

Net/Gross weight kg 14/19 15/20 15/20 15/20

Refrigerant type

R410A

Throttle

Type

EXV (Mechanical gear modulation, Integrated with the evaporator)

Model

EFM-25YGMISZ-6M-A (Fujikoki)

Design pressure MPa 4.4/2.6

Refrigerant
piping

Liquid side/ Gas side mm Ф6.35/Ф12.7 Ф6.35/Ф12.7 Ф6.35/Ф12.7 Ф6.35/Ф12.7

Connecting
wiring

Power wiring mm

2

3*2.5

Signal wiring mm2

4*0.75

Drainage water pipe diameter Φ16 (outer dia.)

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

Operation temp ℃ Cooling：17～32；Heating:10～28

Notes: 1. Nominal cooling capacities are based on the following conditions: return air temp. : 27°CDB, 19°CWB, 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,equivalent ref. Piping: 8m(horizontal)