Midea V6R Series Manual page 86

Figure 3-4.4: Permitted refrigerant piping lengths and level differences
Legend
g1, g2, g3, G1
L, M
L1
L2 to L7
A to C
a to n
N1 to N8, N10
N9, N11
g1, g2, g3, G1
Table 3-4.5: Summary of permitted refrigerant piping lengths and level differences
Total piping length
Piping between farthest VRF
indoor unit and outdoor unit
or the last multi-outdoor
piping branch
Piping between farthest VRF indoor unit or AHU and
first branch joint
Piping between outdoor unit and outdoor branch joint
Largest level difference
between VRF indoor unit or
AHU and outdoor unit
Largest level difference between standard indoor
units or AHUs
Notes:
1. Refer to Requirement 1, above.
2. Refer to Requirement 2, above.
3. Refer to Requirement 3, above.
4. Refer to Requirement 4, above.
Outdoor unit connection pipe
Outdoor unit branch joint
Main pipe
Indoor unit main pipe
Branch joint between main pipe and MS
Indoor unit auxiliary pipe
VRF indoor unit
AHUs
Outdoor unit connection pipe
Actual length
Equivalent length
2
3
Outdoor unit is above
4
Outdoor unit is below
Permitted values Piping in Figure 3-4.6
≤ 1000 m
L1+ 2 x
≤ 175 m
L1 + L2 + L4 + f + i
≤ 200 m
≤ 40 m
g1 ≤ 10 m; g2+G1 ≤ 10 m;
≤ 10 m
≤ 50 m
≤ 40 m
≤ 30 m
V6R VRF 50/60Hz
Ʃ Ʃ
{L2 L7} + {a n}
to to
L2 + L4 + f + i
g3 + G1 ≤ 10 m
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