Midea V6R Series User manual

MV6-R252WV2GN1
MV6-R280WV2GN1
MV6-R335WV2GN1
MV6-R400WV2GN1
MV6-R450WV2GN1
MV6-R500WV2GN1
MV6-R560WV2GN1
Engineering Data
Series VRF
Commercial Air Conditioners
R410A

V6R VRF 50/60Hz
1
CONTENTS
CONTENTS
Part 1 General Information............................................................................ 3
Part 2 Outdoor Unit Engineering Data ....................................................... 21
Part 3 System Design and Installation...................................................... 119

V6R VRF 50/60Hz
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Midea V6R Series Engineering Data Book

V6R VRF 50/60Hz
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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 ..................................................................... 10
4 Nomenclature .......................................................................................... 11
5 Combination Ratio ................................................................................... 13
6 Selection Procedure ................................................................................. 15

V6R VRF 50/60Hz
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Midea V6R Series Engineering Data Book
1Indoor and Outdoor Unit Capacities
1.1 Indoor Units
1.1.1 VRF indoor units
Table 1-1.1: VRF 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: VRF indoor unit1 capacity range
Capacity
Capacity
index
Q1
Q2
Q4C
Q4
T2
T1
G
DL
F
Z
kW
HP
1.8
0.6
18
18
—
—
—
—
—
—
—
—
—
2.2
0.8
22
22
22
22
—
22
—
22
—
22
22
2.8
1
28
28
28
28
28
28
—
28
—
28
28
3.6
1.25
36
36
36
36
36
36
—
36
36
36
36
4.5
1.6
45
45
45
45
45
45
—
45
45
45
45
5.6
2
56
56
56
—
56
56
—
56
56
56
—
7.1
2.5
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
—
—
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
160
—
160
—
—
20.0
7
200
—
—
—
—
—
200
—
—
—
—
25.0
9
250
—
—
—
—
—
250
—
—
—
—
28.0
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).
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.

V6R VRF 50/60Hz
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Part 1 - General Information
1.3 High Temperature Hydro Module
Table 1-1.5: 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-R252WV2GN1
/
10HP
MV6-R280WV2GN1
/
12HP
MV6-R335WV2GN1
/
14HP
MV6-R400WV2GN1
/
16HP
MV6-R450WV2GN1
/
18HP
MV6-R500WV2GN1
/
20HP
MV6-R560WV2GN1
/
22HP
MV6-R615WV2GN1
12HP+10HP
24HP
MV6-R670WV2GN1
14HP+10HP
26HP
MV6-R730WV2GN1
14HP+12HP
28HP
MV6-R785WV2GN1
16HP+12HP
30HP
MV6-R850WV2GN1
18HP+12HP
32HP
MV6-R900WV2GN1
16HP+16HP
34HP
MV6-R950WV2GN1
18HP+16HP
36HP
MV6-R1015WV2GN1
18HP+18HP
38HP
MV6-R1065WV2GN1
20HP+18HP
40HP
MV6-R1120WV2GN1
20HP+20HP
42HP
MV6-R1175WV2GN1
16HP+14HP+12HP
44HP
MV6-R1230WV2GN1
16HP+16HP+12HP
46HP
MV6-R1285WV2GN1
16HP+16HP+14HP
48HP
MV6-R1345WV2GN1
16HP+16HP+16HP
50HP
MV6-R1400WV2GN1
18HP+16HP+16HP
52HP
MV6-R1460WV2GN1
18HP+18HP+16HP
54HP
MV6-R1515WV2GN1
18HP+18HP+18HP
56HP
MV6-R1570WV2GN1
20HP+18HP+18HP
58HP
MV6-R1635WV2GN1
20HP+20HP+18HP
60HP
MV6-R1685WV2GN1
20HP+20HP+20HP
Notes:
1. The combinations of units shown in the table are factory-recommended. Other combinations of units are also possible.

V6R VRF 50/60Hz
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Midea V6R Series Engineering Data Book
2External Appearance
2.1 Indoor Units
2.1.1 VRF indoor units
Table 1-2.1: VRF 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
2.1.2 Fresh air processing unit
Table 1-2.2: Fresh air processing unit appearance
Fresh Air Processing Unit
FA

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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

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Midea V6R Series Engineering Data Book
2.4 Outdoor Units
2.4.1 Single units
Table 1-2.5: Single outdoor unit appearance
8/10/12HP
(with single fan)
14/16/18/20HP
(with dual fan)
2.4.2 Combinations of units
Table 1-2.6: Combination outdoor unit appearance
22HP
24/26/28/30HP
32/34/36/38/40HP
42/44HP
46/48/50/52/54/56/58/60HP

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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.

V6R VRF 50/60Hz
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Midea V6R Series Engineering Data Book
3Outdoor Unit Combinations
Table 1-3.1: Outdoor unit combinations
System capacity
Number
of units
Modules1
Outdoor branch
joint kit2
kW
HP
8
10
12
14
16
18
20
22.4
8
1
●
—
28.0
10
1
●
33.5
12
1
●
40.0
14
1
●
45.0
16
1
●
50.0
18
1
●
56.0
20
1
●
61.5
22
2
●
●
FQZHW-02SB1
68.0
24
2
●
●
73.5
26
2
●
●
78.5
28
2
●
●
83.5
30
2
●
●
90.0
32
2
●●
95.0
34
2
●
●
100.0
36
2
●●
106.0
38
2
●
●
112.0
40
2
●●
118.5
42
3
●
●
●
FQZHW-03SB1
123.5
44
3
●
●●
130.0
46
3
●
●●
135.0
48
3
●●●
140.0
50
3
●●
●
145.0
52
3
●
●●
150.0
54
3
●●●
156.0
56
3
●●
●
162.0
58
3
●
●●
168.0
60
3
●●●
Notes:
1. The combinations of units shown in the table are factory-recommended. Other combinations of units are also possible.
2. For systems with two or more outdoor units, outdoor branch joints (sold separately) are required.

V6R VRF 50/60Hz
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Part 1 - General Information
4Nomenclature
4.1 Indoor Units
4.1.1 VRF indoor units
M
I
2
-
22
Q1
D
H
N1
○
1
○
2
○
3
○
4
○
5
○
6
○
7
○
8
Legend
No.
Code
Remarks
1
M
Midea
2
I
VRF indoor unit
3
2
The 2nd generation VRF DC indoor unit
4
22
Capacity index (the capacity in kW multiplied by 10)
5
Q1
Indoor unit type
Q1: One-way Cassette
Q2: Two-way Cassette
Q4C: Compact Four-way Cassette
Q4: Four-way Cassette
T2: Medium Static Pressure Duct
T1: High Static Pressure Duct
G: Wall-mounted
DL: Ceiling & Floor
F: Floor Standing
Z: Console
6
D
Series category (D: DC series)
7
H
Power supply
Omit: 1 phase, 220-240V, 50Hz
H: 1 phase, 220-240V, 50/60Hz
8
N1
Refrigerant type (N1: R410A)
4.1.2 Fresh air processing unit
M
I
2
-
280
FA
D
H
N1
○
1
○
2
○
3
○
4
○
5
○
6
○
7
○
8
Legend
No.
Code
Remarks
1
M
Midea
2
I
VRF indoor unit
3
2
The 2nd generation VRF DC indoor unit
4
280
Capacity index (the capacity in kW multiplied by 10)
5
FA
Indoor unit type
FA: Fresh Air Processing Unit
6
D
Series category (D: DC series)
7
H
Power supply
Omit: 1 phase, 220-240V, 50Hz
H: 1 phase, 220-240V, 50/60Hz
8
N1
Refrigerant type (N1: R410A)

V6R VRF 50/60Hz  
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Midea V6R Series Engineering Data Book
4.2 Heat Recovery Ventilator
HRV - D 200
○
1○ 2○ 3

Legend
No. Code Remarks
1HRVHeatrecoveryventilator
2DSeriescategory(D:DCseries)
3200Airflowinm3/h

4.3 High Temperature Hydro Module

SMK - D 140 H H N1-3
○
1○
2○ 3○ 4○ 5○ 6

Legend
No. Code Remarks
1SMKMideahydromodule
2DUsedforVRFsystem
3140Capacityindex(thecapacityinkWmultipliedby10)
4HHightemperaturetype
5H
Powersupply
Omit:1phase,220‐240V,50Hz
H:1phase,220‐240V,50/60Hz
6N1‐3Refrigeranttype(R410A&R134a)

4.4 Outdoor Units

M V6 - R280 WV2 GN1
○
1○
2○ 3○ 4○ 5○ 6○ 7⑧

Legend
No. Code Remarks
1MMidea
2V6The6thgenerationVRF
3RHeatrecovery
4280Capacityindex(thecapacityinkWmultipliedby10)
5WUnitcategory(W:VRFoutdoorunit)
6V2Type(V2:AllDCinverter)
7GPowersupply(G:3phase,380‐415V,50/60Hz)
8N1Refrigeranttype(N1:R410A)



V6R VRF 50/60Hz
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Part 1 - General Information
5Combination Ratio
Table 1-5.1: Indoor and outdoor unit combination ratio limitations
Type
Total
combination ratio
Allowed combination ratio
VRF indoor units1
HT hydro
module
AHU
Fresh air
processing units
VRF indoor units only
50%~200% (Single)
50%~150% (2 units
combination)
50%~130% (3 units
combination)
50%~200% (Single)
50%~150% (2 units
combination)
50%~130% (3 units
combination)
/
/
/
VRF indoor units + HT hydro
module units
50%~200%
50%~130%
0%~100%2
/
/
VRF indoor units + AHUs
50%~100%
50%~100%
/
0%~50%3
/
VRF indoor units + fresh air
processing units
50%~100%
50%~100%
/
/
0%~30%3
Fresh air processing units only
50%~100%
/
/
/
50%~100%
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).
2. When HT hydro module units are installed together with VRF indoor units, the total capacity of HT hydro module units must not exceed 100% of the total
capacity of the outdoor units and the combination ratio must not exceed 200%.
3. When AHUs are installed together with VRF indoor units, the total capacity of AHUs must not exceed 50% of the total capacity of the outdoor units and the
combination ratio must not exceed 100%.
4. When fresh air processing units are installed together with VRF indoor units, the total capacity of the fresh air processing units must not exceed 30% of the
total capacity of the outdoor units and the combination ratio must not exceed 100%.
5. HT hydro module units only and AHUs only are not allowed.
Combination ratio =
Sum of capacity indexes of the indoor units
Capacity index of the outdoor units

V6R VRF 50/60Hz
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Midea V6R Series Engineering Data Book
Table 1-5.2: Combinations of indoor and outdoor units
Outdoor unit capacity
Sum of capacity indexes
Maximum
number of
connected
indoor units1
kW
HP
Capacity
index
VRF indoor units
only
VRF indoor units +
HT hydro module
VRF indoor units +
AHUs
VRF indoor units +
fresh air processing
units
22.4
8
224
112 to 291.2
112 to 448
112 to 224
112 to 224
64
28
10
280
140 to 364
140 to 560
140 to 280
140 to 280
33.5
12
335
167.5 to 435.5
167.5 to 670
167.5 to 335
167.5 to 335
40
14
400
200 to 520
200 to 800
200 to 400
200 to 400
45
16
450
225 to 585
225 to 900
225 to 450
225 to 450
50
18
500
250 to 650
250 to 1000
250 to 500
250 to 500
56
20
560
280 to 728
280 to 1120
280 to 560
280 to 560
61.5
22
615
307.5 to 799.5
307.5 to 1230
307.5 to 615
307.5 to 615
68
24
680
340 to 884
340 to 1360
340 to 680
340 to 680
73.5
26
735
367.5 to 955.5
367.5 to 1470
367.5 to 735
367.5 to 735
78.5
28
785
392.5 to 1020.5
392.5 to 1570
392.5 to 785
392.5 to 785
83.5
30
835
417.5 to 1085.5
417.5 to 1670
417.5 to 835
417.5 to 835
90
32
900
450 to 1170
450 to 1800
450 to 900
450 to 900
95
34
950
475 to 1235
475 to 1900
475 to 950
475 to 950
100
36
1000
500 to 1300
500 to 2000
500 to 1000
500 to 1000
107
38
1070
535 to 1391
535 to 2140
535 to 1070
535 to 1070
112
40
1120
560 to 1456
560 to 2240
560 to 1120
560 to 1120
118.5
42
1185
592.5 to 1540.5
592.5 to 2370
592.5 to 1185
592.5 to 1185
123.5
44
1235
617.5 to 1605.5
617.5 to 2470
617.5 to 1235
617.5 to 1235
130
46
1300
650 to 1690
650 to 2600
650 to 1300
650 to 1300
135
48
1350
675 to 1755
675 to 2700
675 to 1350
675 to 1350
140
50
1400
700 to 1820
700 to 2800
700 to 1400
700 to 1400
145
52
1450
725 to 1885
725 to 2900
725 to 1450
725 to 1450
150
54
1500
750 to 1950
750 to 3000
750 to 1500
750 to 1500
156
56
1560
780 to 2028
780 to 3120
780 to 1560
780 to 1560
162
58
1620
810 to 2106
810 to 3240
810 to 1620
810 to 1620
168
60
1680
840 to 2184
840 to 3360
840 to 1680
840 to 1680
Notes:
1. The maximum number of connected indoor units depend upon indoor unit type and total combination ratio.

V6R VRF 50/60Hz
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Part 1 - General Information
6Selection Procedure
6.1 Procedure
Step 1: Establish design conditions
Step 2: Select indoor units
Step 3: Select outdoor units
Notes:
1. If the indoor design temperature falls between two temperatures listed in the indoor unit's capacity table, calculate the corrected capacity by interpolation.
If the indoor unit selection is to be based on total heat load and sensible heat load, select indoor units which satisfy not only the total heat load requirements
of each room but also the sensible heat load requirements of each room. As with total heat capacity, the sensible heat capacity of indoor units should be
corrected for indoor temperature, interpolating where necessary. For the indoor unit capacity tables, refer to the indoor unit technical manuals.
Design temperature and humidity (indoor and outdoor)
Required heat load of each room
System peak load
Piping length, level differences
Indoor unit specifications (type and quantity)
Decide indoor unit safety factor
Select indoor unit models ensuring that:
Indoor unit capacity corrected for indoor air temperature WB1 ≥ Required heat load × Indoor unit safety factor
Determine required total heat load on outdoor units
Use the sum of the peak load of each room
Use the system peak load
Provisionally select outdoor unit capacity based on combination ratio limitations
Confirm that the number of indoor units connected to the outdoor units is within limitation
Correct cooling and heating capacities of the outdoor units for the following items:
Outdoor air temperature / Indoor air temperature WB / Combination ratio / Piping length, level difference
/ Piping heat loss / Frost accumulation (for heating capacity only)
Is corrected outdoor unit capacity ≥ Required total heat load on outdoor units?
VRF system selection is complete
No
Yes

V6R VRF 50/60Hz
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Midea V6R Series Engineering Data Book
6.2 Example
The following is a selection example based on total heat load for cooling. All the indoor units are VRF indoor unit.
Figure 1-6.1: Room plan
Room A
Room F
Room E
Room D
Room B
Room C
Step 1: Establish design conditions
Indoor air temperature 25°C DB, 18°C WB; outdoor air temperature 33°C DB.
Determine peak load of each room and system peak load. As shown in Table 1-6.1, the system peak load is 34kW.
Table 1-6.1: Required heat load of each room (kW)
Time
Room A
Room B
Room C
Room D
Room E
Room F
Total
9:00
4.8
3.0
3.0
9.0
2.9
2.9
25.6
12:00
6.6
5.1
5.1
6.8
4.0
4.0
31.6
14:00
9.0
4.9
4.9
6.8
4.2
4.2
34
16:00
10.6
3.9
3.9
6.2
3.8
3.8
32.2
The maximum piping lengths and level differences in this example are as given in Figure 1-6.2.
Figure 1-6.2: System diagram
Indoor unit type for all rooms: Medium Static Pressure Duct (T2).
Step 2: Select indoor units
In this example, a safety factor is not used (i.e. the safety factor is 1).
Select indoor unit models using the medium static pressure duct cooling capacity table. Each indoor unit's corrected
capacity needs to be greater than or equal to the peak load of the relevant room. The selected indoor units are shown
in Table 1-6.3.
Equivalent length of piping 60m
Level
difference
40m
Outdoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
MS
MS

V6R VRF 50/60Hz
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Part 1 - General Information
Table 1-6.2: Extract from medium static pressure duct (T2) cooling capacity table
Model
Capacity
index
Indoor air temperature
14°C WB
16°C WB
18°C WB
19°C WB
20°C WB
22°C WB
24°C WB
20°C DB
23°C DB
26°C DB
27°C DB
28°C DB
30°C DB
32°C DB
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
T2
22
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.4
1.5
2.4
1.5
28
1.9
1.7
2.3
1.9
2.6
2.1
2.8
2.1
3.0
2.1
3.1
2.0
3.1
1.9
36
2.5
2.1
2.9
2.3
3.4
2.5
3.6
2.6
3.8
2.7
4.2
2.8
3.9
2.3
45
3.1
2.6
3.7
2.8
4.2
3.1
4.5
3.2
4.8
3.2
4.9
3.1
5.1
2.9
56
3.9
3.0
4.6
3.3
5.3
3.6
5.6
3.7
5.9
3.8
6.2
3.7
6.2
3.4
71
4.9
3.9
5.8
4.3
6.7
4.7
7.1
4.9
7.5
4.8
7.8
4.6
7.8
4.3
80
5.5
4.4
6.6
4.9
7.5
5.3
8.0
5.5
8.4
5.5
8.8
5.2
8.8
4.8
90
6.2
5.3
7.3
5.8
8.4
6.3
9.0
6.4
9.6
6.5
9.9
6.1
9.9
5.7
112
7.7
6.4
9.1
7.1
10.5
7.7
11.2
7.8
11.9
8.1
12.5
7.8
12.5
7.4
140
9.7
7.8
11.3
8.6
13.2
9.6
14.0
9.8
14.8
9.8
15.7
9.7
15.4
8.8
Abbreviations:
TC: Total capacity (kW); SHC: Sensible heat capacity (kW)
Table 1-6.3: Selected indoor units
Room A
Room B
Room C
Peak heat load (kW)
10.6
5.1
5.1
Selected indoor unit
MI2-140T2DN1
MI2-56T2DN1
MI2-56T2DN1
Corrected TC (kW)
13.2
5.3
5.3
Room D
Room E
Room F
Peak heat load (kW)
9.0
4.2
4.2
Selected indoor unit
MI2-112T2DN1
MI2-45T2DN1
MI2-45T2DN1
Corrected TC (kW)
10.5
4.2
4.2
Step 3: Select outdoor units
Determine the required total heat load from the indoor units to the outdoor units based on either the sum of the peak
loads of each room or the system peak load. In this example, it is determined based on the system peak load. Therefore,
the required heat load is 34kW.
Provisionally select outdoor units using the sum of the capacity indexes (CIs) of the selected indoor units (as shown in
Table 1-6.4), ensuring that the combination ratio is between 50% and 130%. Refer to Table 1-6.5. As the sum of CIs of
the indoor units is 454, outdoor units from 14HP to 32HP are potentially suitable. Start from the smallest, which is the
14HP unit.
Table 1-6.4: Sum of indoor unit capacity indexes
Model
Capacity Index
No. of units
MI2-140T2DN1
140
1
MI2-112T2DN1
112
1
MI2-56T2DN1
56
2
MI2-45T2DN1
45
2
Sum of CIs
454

V6R VRF 50/60Hz
18
Midea V6R Series Engineering Data Book
Table 1-6.5: Extract from Table 1-5.2 Combinations of Indoor and outdoor units
Outdoor unit capacity
Sum of capacity indexes
Maximum
number of
connected
indoor units
kW
HP
Capacity
index
VRF indoor units
only
VRF indoor units
+ HT hydro
module
VRF indoor units
+ AHUs
VRF indoor units +
fresh air processing
units
33.5
12
335
167.5 to 435.5
167.5 to 670
167.5 to 368.5
167.5 to 335
64
40
14
400
200 to 520
200 to 800
200 to 440
200 to 400
45
16
450
225 to 585
225 to 900
225 to 495
225 to 450
50
18
500
250 to 650
250 to 1000
250 to 550
250 to 500
56
20
560
280 to 728
280 to 1120
280 to 616
280 to 560
61.5
22
615
307.5 to 799.5
307.5 to 1230
307.5 to 676.5
307.5 to 615
68
24
680
340 to 884
340 to 1360
340 to 748
340 to 680
73.5
26
735
367.5 to 955.5
367.5 to 1470
367.5 to 808.5
367.5 to 735
78.5
28
785
392.5 to 1020.5
392.5 to 1570
392.5 to 863.5
392.5 to 785
83.5
30
835
417.5 to 1085.5
417.5 to 1670
417.5 to 918.5
417.5 to 835
90
32
900
450 to 1170
450 to 1800
450 to 990
450 to 900
95
34
950
475 to 1235
475 to 1900
475 to 1045
475 to 950
The number of connected indoor units is 6 and the maximum number of connected indoor units on the 14HP outdoor
unit is 64, so the number of connected indoor units is within the limitation.
Calculate the corrected capacity of the outdoor units:
a) The sum of the indoor unit CIs is 454 and the CI of the 14HP outdoor unit (MV6-R400WV2GN1) is 400, so the
combination ratio is 454 / 400 = 113.5%.
b) Using the outdoor units’ cooling capacity table, interpolate to obtain the capacity (“B”) corrected for outdoor air
temperature, indoor air temperature, and combination ratio. Refer to Tables 1-6.6 and 1-6.7.
Table 1-6.6: Extract from Table 2-9.4 MV6-R400WV2GN1
cooling capacity
Table 1-6.7: Cooling capacity calculated by interpolation
CR
Outdoor
air
temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
CR
Outdoor
air
temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
25.8 / 18.0
25.8 / 18.0
TC
PI
TC
PI
kW
kW
kW
kW
120%
31
48.00
11.02
120%
33
45.73
10.99
33
45.73
10.99
35
44.05
11.00
B = 41.21
110%
31
40.62
8.74
110%
33
40.62
9.38
33
40.62
9.38
35
40.62
10.17
Notes:
1. 40.62 + (45.73 – 40.62) × (113.5 – 110) / (120 – 110) =
41.2.

V6R VRF 50/60Hz
19
Part 1 - General Information
c) Find the correction factor for piping length and level difference (“K1”)
Figure 1-6.3: V6R rate of change in cooling capacity
Notes:
1. The horizontal axis shows equivalent length of piping between farthest indoor unit and first outdoor
branch joint; the vertical axis shows the largest level difference between indoor unit and outdoor
unit. For level differences, positive values indicate that the outdoor unit is above the indoor unit,
negative values indicate that the outdoor unit is below the indoor unit.
d) Calculate the corrected capacity of MV6-R400WV2GN1 (“C”) by using K1:
C = B × K1 = 41.2 × 0.91 = 37.5kW
The corrected capacity 37.5kW is larger than required total heat load 34kW, so selection is complete. (In the event that
the corrected capacity is lower than the required total heat load, Step 3 should be repeated from the point where the
outdoor unit capacity is provisionally selected.)
1.00
1.00
0.98
0.98
0.96
0.96
0.94
0.94
0.92
0.92
0.90
0.90
0.88
0.88
0.86
0.86
0.85
0.85
0.84
0.84
0.83
0.83
0.82
0.82
0.81
0.81
0.80
0.80
0.79
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
010 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
K1