Huawei NetCol5000-A050 User Manual page 55

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)
Table 4-1 Equivalent length of components
Copper Pipe
Outer
Diameter
(Unit: inch)
3/8
1/2
5/8
3/4
7/8
1
1-1/8
Pipe Welding
●
●
●
●
Cabling
●
●
●
●
●
Issue 04 (2022-12-15)
45-degree
Bend (Unit:
m)
0.12
0.14
0.17
0.2
0.24
0.28
0.32
Before welding, take measures to protect the needle valve (discharge pipe
needle valve) within 500 mm from the welding position (by removing the
valve plug or wrapping the valve with a piece of wet cloth).
When connecting the indoor and outdoor units, you are advised to weld pipes
to the outdoor unit first. Seal the pipe after the welding break exceeds 15
minutes to prevent dust and water from entering the pipe.
During the welding, take protective measures, such as spreading a piece of
wet cloth, around the welding position, to avoid burning the sheet metal,
internal components, needle valves, other pipes, pipe clamps, thermal
insulation foam, cables, labels, and tags.
After welding a long copper pipe or a copper pipe with a bend, clean the pipe
with nitrogen to prevent foreign matter from affecting other parts.
Connect cables in accordance with the installation laws and regulations of the
country or region where the project is located.
Obtain the current parameters from the device nameplate.
Ensure that the voltage and frequency of the power supply meet the
requirements of the device.
Only qualified electrical installation personnel are allowed to connect cables.
Before connecting cables, wear insulation and protective equipment, such as
protective gloves.
Before connecting cables, use a multimeter to measure the input voltage and
ensure that the power supply is disconnected.
Copyright © Huawei Digital Power Technologies Co., Ltd.
90-degree 180-degree
Bend (Unit: Bend (Unit:
m) 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
4 System Installation
T-shaped 3-
Way Valve
(Unit: m)
0.6
0.65
0.7
0.8
1.2
1.3
1.4
45