Midea V6R VRF Series User manual

Commercial Air Conditioners
R410A
Service
Manual
MV6-R252WV2RN1
MV6-R280WV2RN1
MV6-R335WV2RN1
MV6-R400WV2RN1
MV6-R450WV2RN1
MV6-R500WV2RN1
Series VRF

V6R VRF 50Hz
1
CONTENTS
CONTENTS
Part 1 General Information ........................................................................ 3
Part 2 Component Layout and Refrigerant Circuits ................................ 13
Part 3 Control............................................................................................ 25
Part 4 Field Settings ................................................................................. 51
Part 5 Electrical Components and Wiring Diagrams............................... 57
Part 6 Diagnosis and Troubleshooting ..................................................... 83

V6R VRF 50Hz
2
Midea V6R Series Service Manual

V6R VRF 50Hz
3
Part 1 - General Information
Part 1
General Information
1 Indoor and Outdoor Unit Capacities...................................................... 4
2 External Appearance ................................................................................ 5
3 Outdoor Unit Combinations .................................................................. 10
4 Combination Ratio ................................................................................. 11

V6R VRF 50Hz
4
Midea V6R Series Service Manual
1Indoor and Outdoor Unit Capacities
1.1 Indoor Units
1.1.1 VRF indoor units
Table 1-1.1: Standard indoor unit abbreviation codes
Abbreviation
code
Type
Abbreviation
code
Type
Q1
One-way Cassette
T1
High Static Pressure Duct
Q2
Two-way Cassette
G
Wall-mounted
Q4C
Compact Four-way Cassette
DL
Ceiling & Floor
Q4
Four-way Cassette
F
Floor Standing
T2
Medium Static Pressure Duct
Z
Console
Table 1-1.2: Indoor unit capacity range
Capacity
Capacity
index
Q1
Q2
Q4C
Q4
T2
T1
G
DL
F
Z
kW
kBtu/h
HP
1.8
5
0.6
18
18
—
—
—
—
—
—
—
—
—
2.2
7
0.8
22
22
22
22
—
22
—
22
—
22
22
2.8
9
1
28
28
28
28
28
28
—
28
—
28
28
3.6
12
1.25
36
36
36
36
36
36
—
36
36
36
36
4.5
15
1.6
45
45
45
45
45
45
—
45
45
45
45
5.6
19
2
56
56
56
—
56
56
—
56
56
56
—
7.1
24
2.5
71
71
71
—
71
71
71
71
71
71
—
8.0
27
3
80
—
—
—
80
80
80
80
80
80
—
9.0
30
3.2
90
—
—
—
90
90
90
90
90
—
—
10.0
34
3.6
100
—
—
—
100
—
—
—
—
—
—
11.2
38
4
112
—
—
—
112
112
112
—
112
—
—
14.0
48
5
140
—
—
—
140
140
140
—
140
—
—
16.0
55
6
160
—
—
—
160
160
160
—
160
—
—
20.0
68
7
200
—
—
—
—
—
200
—
—
—
—
25.0
85
9
250
—
—
—
—
—
250
—
—
—
—
28.0
96
10
280
—
—
—
—
—
280
—
—
—
—
Notes:
1. V6R series outdoor units are compatible with the 2nd generation DC VRF indoor unit and 2nd generation AC VRF indoor units (which will be released soon).

V6R VRF 50Hz
5
Part 1 - General Information
1.1.2 Fresh air processing unit
Table 1-1.3: Fresh air processing unit capacity range
Capacity
12.5kW
14kW
20kW
25kW
28kW
Capacity index
125
140
200
250
280
Notes:
1. V6R series outdoor units are compatible with the 2nd generation DC Fresh air processing unit.
1.2 Heat recovery ventilator
Table 1-1.4: Heat recovery ventilator capacity range
Capacity
200m3/h
300m3/h
400m3/h
500m3/h
800m3/h
1000m3/h
1500m3/h
2000m3/h
Notes:
1. V6R series outdoor units are compatible with the DC type heat recovery ventilator.
1.3 High Temperature Hydro Module
Table 1-1.5: 1.3 High Temperature Hydro Module capacity range
Capacity
14kW
Capacity index
140
1.4 Outdoor Units
Table 1-1.6: Outdoor unit capacity range
Capacity
Model Name
Combination Type
8HP
MV6-R252WV2RN1
/
10HP
MV6-R280WV2RN1
/
12HP
MV6-R335WV2RN1
/
14HP
MV6-R400WV2RN1
/
16HP
MV6-R450WV2RN1
/
18HP
MV6-R500WV2RN1
/
20HP
MV6-R560WV2RN1
10HP+10HP
22HP
MV6-R615WV2RN1
10HP+12HP
24HP
MV6-R680WV2RN1
10HP+14HP
26HP
MV6-R735WV2RN1
12HP+14HP
28HP
MV6-R785WV2RN1
12HP+16HP
30HP
MV6-R835WV2RN1
12HP+18HP
32HP
MV6-R900WV2RN1
16HP+16HP
34HP
MV6-R950WV2RN1
16HP+18HP
36HP
MV6-R1000WV2RN1
18HP+18HP
38HP
MV6-R1070WV2RN1
12HP+12HP+14HP
40HP
MV6-R1120WV2RN1
12HP+12HP+16HP
42HP
MV6-R1185WV2RN1
12HP+14HP+16HP
44HP
MV6-R1235WV2RN1
12HP+16HP+16HP
46HP
MV6-R1300WV2RN1
14HP+16HP+16HP
48HP
MV6-R1350WV2RN1
16HP+16HP+16HP
50HP
MV6-R1400WV2RN1
16HP+16HP+18HP
52HP
MV6-R1450WV2RN1
16HP+18HP+18HP
54HP
MV6-R1500WV2RN1
18HP+18HP+18HP
Notes:
1. The combinations of units shown in the table are factory-recommended. Other combinations of units are also possible.

V6R VRF 50Hz
6
Midea V6R Series Service Manual
2External Appearance
2.1 Indoor Units
Table 1-2.1: Indoor unit appearance
One-way Cassette
Two-way Cassette
Q1
Q2
Compact Four-way Cassette
Four-way Cassette
Q4C
Q4
Medium Static Pressure Duct
High Static Pressure Duct
T2
T1
Wall-mounted
Ceiling & Floor
G
DL
Floor Standing
Console
F
Z
2.1.1 Fresh air processing unit
Table 1-2.2: Fresh air processing unit appearance
Fresh Air Processing Unit
FA

V6R VRF 50Hz
7
Part 1 - General Information
2.2 Heat Recovery Ventilator
Table 1-2.3: Heat recovery ventilator appearance
Heat Recovery Ventilator
2.3 High Temperature Hydro Module
Table 1-2.4: High temperature Hydro module appearance
High Temperature Hydro Module

V6R VRF 50Hz
8
Midea V6R Series Service Manual
2.4 Outdoor Units
2.4.1 Single units
Table 1-2.5: Single outdoor unit appearance
8/10/12HP
(with single fan)
14/16/18HP
(with dual fan)
2.4.2 Combinations of units
Table 1-2.6: Combination outdoor unit appearance
20/22HP
24/26/28/30HP
32/34/36HP
38/40HP
42/44HP
46/48/50/52/54HP

V6R VRF 50Hz
9
Part 1 - General Information
2.5 Mode Selection Box
Table 1-2.7: MS box appearance
Model name
Appearance
Max. number of
downstream indoor
units
MS01/N1-D1,2
8
MS04/N1-D
20
MS06/N1-D
30
MS08/N1-D
40
MS10/N1-D
47
MS12/N1-D
47
Notes:
1. MS01 can be ceiling-suspended installed and wall-mounted installed.
2. Low temperature cooling operation and leakage detection function are available in MS01.