Midea V6R Series Manual page 88

Table 3-4.8: Main pipe (L1) and first branch joint (A)
Outdoor Unit Capacity
(HP)
8
10
12
14-16
18
20-22
24
26-34
36
38-60
Notes:
1. When the equivalent piping length from outdoor units to the farthest indoor unit exceed 90 m, or the level difference is greater
than 50 m (outdoor unit is above) or 40 m (outdoor unit is below), the liquid pipe of the main pipe (L1) should be increased as
Table 3-4.2.
Table 3-4.9: Indoor unit main pipes (L2 to L8) and indoor unit branch joint kits
Total capacity of downstream
indoor units (× 100W)
< 168
168 ≤ A < 224
224 ≤ A < 330
330 ≤ A < 470
470 ≤ A < 710
710 ≤ A < 1040
1040 ≤ A
Notes:
1. Choose indoor main pipes from the above table in accordance with total downstream indoor capacity, which is the total capacity of all the
indoor units, exclude HT hydro module, connected downstream.
2. If there are HT hydro module connected to the system, the pipes (L9, n, o), only HT hydro module connected downstream, are selected
according to Table 3-4.10.
Table 3-4.7: Outdoor unit branch joint kits (L, M)
Number of
outdoor units
2
3
Liquid pipe Low Pressure Gas Pipe
Φ9.53 Φ19.1
Φ9.53 Φ22.2
Φ12.7 Φ28.6
Φ12.7 Φ28.6
Φ15.9 Φ28.6
Φ15.9 Φ28.6
Φ15.9 Φ34.9
Φ19.1 Φ34.9
Φ19.1 Φ41.3
Φ19.1 Φ41.3
Pipe Diameter (mm OD)
Liquid pipe Low Pressure Gas Pipe
∅9.53
∅9.53
∅9.53
Φ12.7
Φ15.9
Φ19.1
Φ19.1
Branch joint kit
L: FQZHW-02SB1
L+M: FQZHW-03SB1
Pipe Diameter (mm OD)
High Pressure Gas Pipe
Φ15.9
Φ19.1
Φ19.1
Φ22.2
Φ22.2
Φ28.6
Φ28.6
Φ28.6
Φ28.6
Φ34.9
High Pressure Gas Pipe
Φ15.9
Φ19.1
Φ22.2
Φ28.6
Φ28.6
Φ34.9
Φ41.3
V6R VRF 50/60Hz
Branch joint kit
FQZHN-02SB1
FQZHN-02SB1
FQZHN-03SB1
FQZHN-03SB1
FQZHN-03SB1
FQZHN-03SB1
FQZHN-04SB1
FQZHN-04SB1
FQZHN-05SB1
FQZHN-05SB1
Branch joint
kit
Φ12.7 FQZHN-01SB1
Φ15.9 FQZHN-02SB1
Φ19.1 FQZHN-02SB1
Φ19.1 FQZHN-03SB1
FQZHN-03SB1
Φ28.6
Φ28.6 FQZHN-04SB1
Φ28.6 FQZHN-05SB1
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