Midea V6R Series User Manual

V6R VRF 50/60Hz
137
Part 3
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System Design and Installation
Figure 3-4.2: Permitted refrigerant piping lengths and level differences
Legend
g1, g2, g3, G1
Outdoor unit connection pipe
L, M
Outdoor unit branch joint
L1
Main pipe
L2 to L9
Indoor unit main pipe
A to D
Branch joint between main pipe and MS
I, II
Branch joint between MS and indoor unit
a to p
Indoor unit auxiliary pipe
N1 to N13
VRF indoor unit
Notes:
1. When multiple MS units are used in a single system, they should be installed in parallel.
2. Header branch (DXFQT4/DXFQT8) can only be installed downstream of MS.
3. Branches and others header branches cannot be installed downstream of the head branch.
Table 3-4.3: Summary of permitted refrigerant piping lengths and level differences
Permitted values
Piping in Figure 3-4.2
Piping lengths
Total piping length
1
≤ 1000m
L1+ 2 x Ʃ{L2 to L9} + Ʃ{a to p}
Piping between farthest indoor
unit and first outdoor branch
joint
2
Actual length
≤ 175m
L1 + L2 + L4 + f + i
Equivalent length
≤ 200 m
Piping between farthest indoor unit and first indoor
branch joint
3
≤ 40m / 90m
L2 + L4 + f + i
Piping between MS to downstream indoor unit
≤ 40 m
f + i
Piping between outdoor unit and outdoor branch joint
≤ 10 m
g1 ≤ 10 m; g2+G1 ≤ 10 m;
g3 + G1 ≤ 10 m
Level
differences
Largest level difference between indoor unit and
outdoor unit
4
≤ 110m
Largest level difference between indoor units
≤ 30m
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.

Midea V6R Series Specifications

General

Brand	Midea
Model	V6R Series
Category	Air Conditioner
Language	English