Midea MIV V4+ Mini User manual

DM12-01.01.05en
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Service manual
MIV V4+ Mini
DC INVERTER R410A
(~220V, 50Hz, 1Ph)
MVUH80A-VA1

Contents
Part 1 General Information ...............................................................1
Part 2 Outdoor Units...........................................................................6
Part 3 Installation..............................................................................44
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DM12-01.01.05en MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
General Information 1
Part 1 General Information
1. Product Lineup .............................................................................................. 2
2. Nomenclature................................................................................................. 3
3. Features.......................................................................................................... 5

MIV V4+ Mini DC Inverter R410A (220V, 8 kW) DM12-01.01.05en
2 General Information
1. Product Lineup
Outdoor Units
Model name Dimension (mm)
Width*Height*Depth Net/Gross weight (kg) Power supply
MVUH80A-VA1 975*862*355 66/70 220-240V~50Hz

DM12-01.01.05en MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
General Information 3
2. Nomenclature
2.1 Outdoor unit:
MVUH80A – VA1
Power
1- 1 phase, 50 Hz
3- 3 phases, 50 Hz
Refrigerant
A- R410A
B- R22
Inverter
(in)V(erter) - inverter
S(tandard) – on/off
Model
A…Z
Capacity index
kW*10
The main feature of the system
air cooled:
C(ooling) – cooling only
H(eat pump) – cooling and heating
R(ecovery) – heat recovery, 3-pipe
water cooled:
Q(ooling) – cooling only
W(ater) – cooling and heating
(reco)V(ery) – heat recovery, 3-pipe
Identifier of the outdoor unit
(o)U(tdoor)
Manufacturer’s brand and class of the system
M(idea) V(RF)

MIV V4+ Mini DC Inverter R410A (220V, 8 kW) DM12-01.01.05en
4 General Information
2.2 Indoor unit:
MVC28A – VA1
Design features (may be absent)
For example: G(rey), W(hite) – color
Power
1- 1 phase, 50 Hz
3- 3 phases, 50 Hz
Refrigerant
A- R410A
B- R22
Inverter
(in)V(erter) - inverter
S(tandard) - on/off
Model
A…Z
Capacity index
kW*10
Type of the indoor unit
W(all) - wall
(ca)S(sette) – cassette 600x600
C(assette) - cassette
(o)N(e way) – 1-way cassette
T(wo way) – 2-way cassette
L(ow) – low static pressure duct
M(edium) – medium static pressure duct
H(igh) - high static pressure duct
(fle)X– ceiling & floor
F(loor standing) – floor standing (колонный)
E(floor-standing exposed) – floor standing exposed
D– console
Manufacturer’s brand and class of the system
M(idea) V(RF)

DM12-01.01.05en MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
General Information 5
3. Features
1. 8 kW with different type indoor units, it is full compliance with residential and light commercial place.
2. Only two main refrigerant lines (liquid pipe and gas pipe) are required in one system.
3. In some large residential spaces or some light commercial space, such as villa, restaurant, usually it need
more than one indoor unit, so outside the building are also full of outdoor unit. Now Midea can provide an
effective solution-Midea DC inverter mini system. Since now the beauty of the building will be back.
4. Indoor unit is over 70 models in 11 type variations can be choose, including 4-way cassette, 4-way
cassette(Compact), duct, ceiling and floor, wall-mounted, floor-standing, give you the most fashionable and
comfortable living space.
5. The outdoor unit can be used as unitary type outdoor unit or multi type outdoor unit. So there can be only
one indoor unit matched with outdoor unit.
6. Indoor unit is the same as the inverter smart series, please refer to the inverter smart part.

MIV V4+ Mini DC Inverter R410A (220V, 8 kW) DM12-01.01.05en
6 Outdoor units
Part 2 Outdoor Units
1.Specifications................................................................................................. 7
2.Dimensions..................................................................................................... 8
3.Service Space................................................................................................. 9
4.Piping Diagrams........................................................................................... 10
5.Wiring Diagrams ...........................................................................................11
6.Field Wiring .................................................................................................. 12
7.Capacity Tables............................................................................................ 13
8.Electric Characteristics............................................................................... 19
9.Sound Levels................................................................................................ 20
10.Operation Limits ........................................................................................ 21
11. Troubleshooting......................................................................................... 22

DM12-01.01.05en MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
Outdoor units 7
1. Specifications
Sale Model MVUH80A-VA1
Power supply V-ph-Hz 220-240, 1, 50
Cooling Capacity kW 8
Input kW 2.56
Heating Capacity kW 9
Input W 2.71
Max. input consumption W 3766
Max.current A 17.3
Compressor
Model TNB220FLHMC
Type Rotary
Brand MITSUBISHI
Supplier MITSUBISHI
Capacity Btu/h 24334
Input W 2200
Rated current(RLA) A 9.7
Refrigerant oil ml PVE 670ml
Outdoor fan motor
Model YDK75-6H-1
Brand Welling
Input W 168
Capacitor uF 5
Speed r/min 877
Outdoor coil
Number of rows 2
Tube pitch(a)x row pitch(b) mm 22*19.05
Fin spacing mm 1.7
Fin type (code) Hydrophilic
Aluminum
Tube outside dia.and type mm Ф7.94
Inner groove tube
Coil length x height x width mm 766*792*38.1
Number of circuits 8
Outdoor air flow m3/h 5966/4775
Sound level（sound pressure）dB(A) 57/54
Outdoor unit
Dimension(WxDxH) mm 975*355*862
Packing (WxDxH) mm 1043*395*915
Net/Gross weight kg 66/70
Refrigerant Type R410A
Charged volume g 2800
Throttle type Electronic
expansion valve
Design pressure MPa 4.4/2.6
Refrigerant piping
Liquid side/ Gas side mm Ф9.53/Ф15.9
Max. refrigerant pipe length m 100
Max. difference in level m 20
Connection wiring
Power wiring mm23 core×4
Signal wiring mm23 core
shielded wire, 3×0.5
Ambient temp.  (Cooling -15~43)(Heating -15~21)
Application area m230~52.5

MIV V4+ Mini DC Inverter R410A (220V, 8 kW) DM12-01.01.05en
8 Outdoor units
2. Dimensions
MVUH80A-VA1
Unit:mm
MODEL A B C D E F H
MVUH80A-VA1 895 590 313 355 333 975 862