Midea V5 X VRF Series Operating manual

Model:
Technical Service Manual
V5 X Series VRF
3 phase, 380-415V, 50Hz
MV5-X224W/V2GN1-AU
MV5-X280W/V2GN1-AU
MV5-X335W/V2GN1-AU
MV5-X400W/V2GN1-AU
MV5-X450W/V2GN1-AU
MV5-X500W/V2GN1-AU

001 Part 1 General Information
013 Part 2 Selection Procedure
019 Part 3 Specifications & Performances
082 Part 4 Installation
129 Part 5 Troubleshooting
Contents

MCAC-VTSM-2015-10 R410AAll DC Inverter V5 X Series 50Hz
General Information 1
Part 1 General Information
1. Features..........................................................................................................2
2. Outdoor units.................................................................................................7
3. Indoor units lineup.......................................................................................11
4. Nomenclature...............................................................................................12

R410AAll DC Inverter V5 X Series 50Hz MCAC-VTSM-2015-10
2 General Information
1. Features
1.1 Energy saving
V5 X Series achieves the industry's top class energy efficiency in cooling and heating by utilizing all DC
inverter compressors, all DC fan motors, and high efficiency heat exchanger.
1.1.1 High EER and COP values
The cooling EER is up to 4.7 and the heating COP is up to 5.6 in the 8HP category.
1.1.2 All DC inverter compressors
The DC inverter compressor adopts innovative design and numerous high performance key parts which can
reduce power consumption by 25%.
1.1.3 All DC fan motors
The system controls the speed of the fan motor according to the system pressure and system load achieving
the minimum power consumption.
EER
COP
8HP
10HP
12HP
14HP
16HP
18HP
20HP
22HP
8HP
10HP
12HP
14HP
16HP
18HP
20HP
22HP
4.7
4.5
4.3
4.3
4.1
3.9
3.86
3.74
5.6
5.3
4.9
4.8
4.6
4.25
4.12
4.03
15 steps vector control
Low
High
More compact, weight,
reduced by 50%
Specially designed
scroll profile for R410A
New structure enhances
mid-frequency performance
Advanced permanent
magnet DC motor improves low-
frequency band performance

MCAC-VTSM-2015-10 R410AAll DC Inverter V5 X Series 50Hz
General Information 3
1.1.4 High efficiency heat exchanger
Newly designed window type fins enlarge the heat exchange area and decrease air resistance, enhance
heat exchange performance and save more energy.
Hydrophilic fins and internally threaded copper pipes optimize heat exchange efficiency.
δdesign increases the hot liquid rate in the condenser and improves the heat-exchange efficiency.
1.2 Flexible design
1.2.1 Wide capacity range
V5X Series has extensive capacity ranging from 8HP to 72HP, meets all customer requirement concerning
small to large buildings.
1.2.2 Wide operation range
V5X Series operates stably under extreme conditions, ranging from minus 20°C to 48°C.
43oC
75oC
Liquid
Liquid
Liquid
Gas
Gas
Gas
New design
Original design
Cooling mode
Heating mode
-20oC
24oC
-5oC
48oC

R410AAll DC Inverter V5 X Series 50Hz MCAC-VTSM-2015-10
4 General Information
1.2.3 Flexible piping design
*The longest piping length is 40m standard. It can be
extended to 90m. When the length is over 40m, please
refer to installation part for more information and
restrictions.
Total piping length
1000m
Longest length actual (Equivalent)
175(200)m
Longest length after first branch
90*m
Level difference between indoor
and outdoor units - ODU up (down)
90(110)m
Level difference between indoor units
30m
1.2.4 High external static pressure
High-static pressure propeller and optimized fan guard can adapt to various installation environments.
V5 X Series units offer up to 60Pa external static pressure for customized applications. A standard 0-20Pa
function is equipped by default.
1.3 High reliability
1.3.1 Cycle duty operation
The cyclical start-up sequence of outdoor units and DC inverter compressors equalized compressor duty and
extends operating life
.
1.3.2 Back-up function
In a multiple system, if one module is failed, other modules can be backup instead of the failed one for
continuing operation.
Longest actual piping length 175m
Level difference between IDU~ODU 110m
Level difference between IDU~IDU 30m

MCAC-VTSM-2015-10 R410AAll DC Inverter V5 X Series 50Hz
General Information 5
1.3.3 Precise oil control technology
5 stages oil control technology ensures all outdoor unit and compressor oil is always kept at a safe level,
completely solving any compressor oil shortage problems.
1st stage: Compressor internal oil separation.
2nd stage: High efficiency centrifugal oil separator (separation efficiency up to 99%) ensures oil
separated from the discharge gas is returned to the compressors.
3rd stage: Oil balance pipes between compressors ensure even oil distribution to keep compressors
running normally.
4th stage: Oil balance pipes among modules ensure even oil distribution among modules.
5th stage: Auto oil return program by monitoring the running time and system status ensures reliable oil
return.
1.4 Enhanced comfort
1.4.1 Night silent operation mode
Night Silent Mode feature which is easily set on the PCB board allows the unit to be set to various time options
during Non-peak and Peak operation time minimizing the units noise output.
1.4.2 Intelligent defrosting technology
Intelligent defrosting program will judge the defrosting time according to the system real requirement, reduce
heating loss caused by unnecessary defrosting and create more comfort.
Defrosting time can be shortened to 4 min. due to the specialized defrosting valve.

R410AAll DC Inverter V5 X Series 50Hz MCAC-VTSM-2015-10
6 General Information
1.5 Easy installation and service
1.5.1 Auto addressing
Outdoor unit can distribute addresses for indoor units automatically.
Wireless and wired controllers can query and modify each indoor unit's address.
1.5.2 Simple communication wiring
Centralized controller (CCM03 or CCM30) can be connected from indoor side or outdoor side (XYE terminals)
at will.
With one set of wires, we can achieve the network communication and system communication, making
installation at site more convenient.
1.5.3 Rotatable electric box
The newly designed rotating control box can rotate on a maximum of 150 degree. It is convenient for the
inspection and maintenance of the pipeline system and greatly reduces the dismount time of the electric
control box.
X Y E
X Y E
P Q E
P Q E
P Q E
P Q E

MCAC-VTSM-2015-10 R410AAll DC Inverter V5 X Series 50Hz
General Information 7
2. Outdoor units
Outdoor units lineup
The outdoor units capacity ranges from 8HP up to 88HP in 2HP increments, a max. combination of 4 basic
models.
8,10,12HP
14,16,18HP
20~36HP
38~54HP
56~72HP

R410AAll DC Inverter V5 X Series 50Hz MCAC-VTSM-2015-10
8 General Information
Standard combination
Capacity
Combination type
Max. quantity of
connectable indoor units
Cooling
capacity
kW
Heating
capacity
kW
8
8HP
16
22.4
25
10
10HP
18
28
31.5
12
12HP
22
33.5
37.5
14
14HP
26
40
45
16
16HP
30
45
50
18
8+10HP
34
50.4
56.5
20
10+10HP
36
56
63
22
8+14HP
38
62.4
70
24
10+14HP
40
68
76.5
26
12+14HP
43
73.5
82.5
28
14+14HP
46
80
90
30
14+16HP
50
85
95
32
16+16HP
53
90
100
34
10+12+12HP
56
95
106.5
36
12+12+12HP
59
100.5
112.5
38
10+12+16HP
63
106.5
119
40
12+12+16HP
64
112
125
42
12+14+16HP
64
118.5
132.5
44
12+16+16HP
64
123.5
137.5
46
14+16+16HP
64
130
145
48
16+16+16HP
64
135
150
50
8+10+16+16HP
64
140.4
156.5
52
10+10+16+16HP
64
146
163
54
10+12+16+16HP
64
151.5
169
56
10+14+16+16HP
64
158
176.5
58
10+16+16+16HP
64
163
181.5
60
12+16+16+16HP
64
168.5
187.5
62
14+16+16+16HP
64
175
195
64
16+16+16+16HP
64
180
200
66
16+16+16+18HP
64
185
206
68
16+16+18+18HP
64
190
212
70
16+18+18+18HP
64
195
218
72
18+18+18+18HP
64
200
224