Huawei NetCol5000-A User Manual page 61

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
2.
3.
4.
5.
Table 3-10 Equivalent length of components
Copper Pipe
Outer
Diameter
(in.)
3/8
1/2
5/8
3/4
7/8
1
1–1/8
Table 3-11 Recommended pipe specifications
Pipe Length (m)
L ≤ 60 m
60 m < L ≤ 100 m
If the one-way pipe length is longer than 100 m, contact Huawei technical support.
To dampen noises generated by the equipment due to vibration, refrigerant pipe supports
should be installed as required by
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Issue 01 (2017-07-27)
After determining the best pipe route between the indoor and outdoor units, calculate the
number of the components that cause local resistance loss, for example, elbows, and
convert them into the equivalent length to straight pipes, as shown in
The total length of pipes connecting the indoor and outdoor units equals to the equivalent
length of the straight pipes plus the length of the straight pipes connecting the indoor and
outdoor units.
You are advised to select the pipes based on the total length of the pipes connecting the
indoor and outdoor units, because different pipe diameters influence the voltage drop and
performance of the cooling system. For details, see
Pipe length mentioned in this document is equivalent.
45° Bend
(Unit: m)
0.12
0.14
0.17
0.2
0.24
0.28
0.32
When the direction of the refrigerant pipe changes, add a support at the position that is
500 mm away from the changing point.
If the refrigerant pipe is straight, add a support every 1500 mm.
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90° Bend
(Unit: m)
0.2
0.25
0.3
0.35
0.42
0.5
0.6
Recommended Gas Pipe
Diameter
7/8 inch (22.22 mm)
7/8 inch (22.22 mm)
Figure 3-26.
3 Installation Guide
Table
Table 3-11.
180° Bend T-shaped
(Unit: m) Three-Way
Valve
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 Liquid
Pipe Diameter
5/8 inch (15.88 mm)
3/4 inch (19.05 mm)
3-10.
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