Huawei NetCol5000-A035 User Manual page 63

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width)
When selecting the refrigerant pipes, note the following:
1.
2.
3.
4.
5.
Table 3-12 Equivalent length of components
Pipe Outer
Diameter (in)
3/8
1/2
5/8
3/4
7/8
1
1-1/8
Table 3-13 Recommended pipe specifications
Pipe Length (m)
L ≤ 60
Note: If the pipe is longer than 60 m, contact Huawei technical support.
Issue 17 (2020-10-22)
Avoid elbows and ensure that the indoor unit and the outdoor unit are
connected by using shortest pipes.
Calculate the number of the components (such as elbows) that cause local
resistance loss, and convert them into the equivalent length to straight pipes,
as described in Table
The total length of pipes connecting the indoor unit and the outdoor unit
equals to the equivalent length for the local resistance loss plus the length of
the straight pipes connecting the indoor unit and the outdoor unit.
You are advised to select the pipes based on the total length of the pipes
connecting the indoor unit and the outdoor unit, because different pipe
diameters influence the pressure drop and performance of the cooling system.
For details, see Table
Pipe length mentioned in this document is equivalent.
45-Degree
Bends(m)
0.12
0.14
0.17
0.2
0.24
0.28
0.32
Recommended Diameter
for Discharge Pipes (inch)
7/8
Copyright © Huawei Technologies Co., Ltd.
3-12.
3-13.
90-Degree
Bends(m)
0.2
0.25
0.3
0.35
0.42
0.5
0.6
3 Installation Guide
180-Degree 3-Way(m)
Bends(m)
0.4 0.6
0.5 0.65
0.6 0.7
0.7 0.8
0.8 1.2
1 1.3
1.2 1.4
Recommended Diameter
for Liquid Pipes (inch)
5/8
53