Midea V4+R Series User manual

Commercial Air Conditioners
Service
Manual
R410A
iOS Version Android Version
Midea CAC After-service Application
iOS Version
Midea CAC News Application
Add.: Midea Headquarters Building, 6 Midea Avenue, Shunde, Foshan, Guangdong, China
Postal code: 528311
Tel: [phone] Fax: [phone]
cac.midea.com global.midea.com
Note: Product specifications change from time to time as product improvements and
developments are released and may vary from those in this document.
Commercial Air Conditioner Division
Midea Group

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CONTENTS
CONTENTS
Part 1 General Information............................................................................ 3
Part 2 Component Layout and Refrigerant Circuits ................................... 11
Part 3 Control ............................................................................................... 23
Part 4 Field Settings..................................................................................... 37
Part 5 Diagnosis and Troubleshooting......................................................... 41

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Part 1 - General Information
Part 1
General Information
1 Indoor and Outdoor Unit Capacities .................................................. 4
2 External Appearance ............................................................................. 6
3 Outdoor Unit Combinations .................................................................. 9
4 Combination Ratio .............................................................................. 10

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1Indoor and Outdoor Unit Capacities
1.1 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
W
Wall-mounted
Q4-C
Compact Four-way Cassette
DL
Ceiling & Floor
Q4
Four-way Cassette
F
Floor Standing
T3
Low Static Pressure Duct
Z
Console
T2
Medium Static Pressure Duct
Table 1-1.2: Indoor unit capacity range
Capacity
Capacity
index
Q1
Q2
Q4-C
Q4
T3
T2
T1
W
DL
F
Z
kW
HP
1.8
0.6
18
18
—
—
—
18
—
—
—
—
18
—
2.2
0.8
22
22
22
22
—
22
22
—
22
—
22
22
2.8
1
28
28
28
28
28
28
28
—
28
—
28
28
3.6
1.25
36
36
36
36
36
36
36
—
36
36
36
36
4.5
1.6
45
45
45
45
45
45
45
—
45
45
45
45
5.6
2
56
56
56
—
56
56
56
—
56
56
56
—
7.1
2.5
71
71
71
—
71
71
71
71
71
71
71
—
8.0
3
80
—
—
—
80
—
80
80
80
80
80
—
9.0
3.2
90
—
—
—
90
—
90
90
90
90
90
—
10.0
3.6
100
—
—
—
100
—
—
—
—
—
—
—
11.2
4
112
—
—
—
112
—
112
112
—
112
—
—
14.0
5
140
—
—
—
140
—
140
140
—
140
—
—
16.0
6
160
—
—
—
—
—
—
160
—
160
—
—
20.0
7
200
—
—
—
—
—
—
200
—
—
—
—
25.0
9
250
—
—
—
—
—
—
250
—
—
—
—
28.0
10
280
—
—
—
—
—
—
280
—
—
—
—
40.0
14
400
—
—
—
—
—
—
400
—
—
—
—
45.0
16
450
—
—
—
—
—
—
450
—
—
—
—
56.0
20
560
—
—
—
—
—
—
560
—
—
—
—
1.2 Heat recovery ventilator
Table 1-1.3: Heat recovery ventilator capacity range
Model
HRV-200
HRV-300
HRV-400
HRV-500
HRV-800
HRV-1000
HRV-1500
HRV-2000
Capacity (m3/h)
200
300
400
500
800
1000
1500
2000

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Part 1 - General Information
1.3 Outdoor Units
Table 1-1.4: Outdoor unit capacity range
Capacity
8HP
10HP
12HP
14HP
16HP
Model
(MDV-*W/D2RN1T(C))
252(8)
280(10)
335(12)
400(14)
450(16)
Capacity
18HP
20HP
22HP
24HP
26HP
28HP
30HP
32HP
Model
(MDV-*W/D2RN1T(C))
532(18)
560(20)
615(22)
680(24)
730(26)
800(28)
850(30)
900(32)
Outdoor unit 1
8HP
10HP
10HP
10HP
10HP
14HP
14HP
16HP
Outdoor unit 2
10HP
10HP
12HP
14HP
16HP
14HP
16HP
16HP
Capacity
34HP
36HP
38HP
40HP
42HP
44HP
46HP
48HP
Model
(MDV-*W/D2RN1T(C))
960(34)
1010(36)
1065(38)
1130(40)
1200(42)
1250(44)
1300(46)
1350(48)
Outdoor unit 1
10HP
10HP
10HP
10HP
14HP
14HP
14HP
16HP
Outdoor unit 2
10HP
10HP
12HP
14HP
14HP
14HP
16HP
16HP
Outdoor unit 3
14HP
16HP
16HP
16HP
14HP
16HP
16HP
16HP
Capacity
50HP
52HP
54HP
56HP
58HP
60HP
62HP
64HP
Model
(MDV-*W/D2RN1T(C))
1432(50)
1460(52)
1515(54)
1580(56)
1650(58)
1700(60)
1750(62)
1800(64)
Outdoor unit 1
8HP
10HP
10HP
10HP
14HP
14HP
14HP
16HP
Outdoor unit 2
10HP
10HP
12HP
14HP
14HP
14HP
16HP
16HP
Outdoor unit 3
16HP
16HP
16HP
16HP
14HP
16HP
16HP
16HP
Outdoor unit 4
16HP
16HP
16HP
16HP
16HP
16HP
16HP
16HP
Notes:
1. The full model names can be obtained by substituting the asterisk in the model name format given in the left-hand column of the table above
with the shortened model names given in the table. For example, the model name for the 40HP model is MDV-1130(40)W/D2RN1T(C)).
2. The combinations of units shown in the table are factory-recommended. Other combinations of units are also possible.

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2External Appearance
2.1 Indoor Units
Table 1-2.1: Standard indoor unit appearance
One-way Cassette
Two-way Cassette
Q1
Q2
Compact Four-way Cassette
Four-way Cassette
Q4-C
Q4
Low Static Pressure Duct
Medium Static Pressure Duct
T3
T2
High Static Pressure Duct
Wall-mounted
T1
W
Ceiling & Floor
Floor Standing
DL
F
Console
Z

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Part 1 - General Information
2.2 Heat Recovery Ventilator
Table 1-2.2: Heat recovery ventilator appearance
Heat Recovery Ventilator
2.3 Outdoor Units
2.3.1 Single units
Table 1-2.3: Single outdoor unit appearance
8/10/12/14/16HP
2.3.2 Combinations of units
Table 1-2.4: Combination outdoor unit appearance
18/20/22/24/26/28/30/32HP
34/36/38/40/42/44/46/48HP
50/52/54/56/58/60/62/64HP

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2.4 MS boxes
Table 1-2.5: MS box appearance
Model name
Appearance
Max. number of
downstream indoor
units
MS01/N1-C
4
MS02/N1-C
8
MS04/N1-C
16
MS06/N1-C
24
MS02E/N1-C
1
MS04E/N1-C
1