Huawei NetCol5000-A User Manual page 59

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Figure 3-24 Routing the refrigerant pipe
Onsite personnel prepare the required materials and install the supports.
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
Issue 13 (2019-01-15)
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
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
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
Copyright © Huawei Technologies Co., Ltd.
90-Degree 180-Degree
Bends(m) Bends(m)
0.2 0.4
0.25 0.5
0.3 0.6
0.35 0.7
0.42 0.8
0.5 1
0.6 1.2
3 Installation Guide
Table 3-12.
Table 3-13.
3-Way(m)
0.6
0.65
0.7
0.8
1.2
1.3
1.4
50