Midea V6R Series Manual page 84

Figure 3-4.3: Permitted refrigerant piping lengths and level differences
Legend
Table 3-4.4: Summary of permitted refrigerant piping lengths and level differences
Total piping length
Piping between farthest VRF
indoor unit or HT hydro
module and first indoor
branch joint
Piping between farthest VRF indoor unit or HT hydro
module and first branch joint
Piping between outdoor unit and outdoor branch joint
Largest level difference
between VRF indoor unit or
HT hydro module and
outdoor unit
Largest level difference between VRF indoor units
or HT hydro module
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.
g1, g2, g3, G1 Main pipe
L, M
Outdoor unit connection pipe
L1
Outdoor unit branch joint
L2 to L9
Main pipe
A to E
Indoor unit main pipe
I
Branch joint between main pipe and MS or HT hydro module
a to o
Branch joint between MS and indoor unit
N1 to N11
VRF indoor unit
N12, N13
HT Hydro module
1
Actual length
Equivalent length
2
3
Outdoor unit is above
Outdoor unit is
4
below
Permitted values Piping in Figure 3-4.5
≤ 600 m
L1+ 2 x
≤ 135 m
L1 + L2 + L4 + f + i
≤ 160 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 L9} + {a o}
to to
L2 + L4 + f + i
g3 + G1 ≤ 10 m
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