NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Copyright © Huawei Technologies Co., Ltd.
3.11 Connecting Cables
3.11.1 Preparations and Precautions
Preparation
Remove the six butterfly nuts from the top cover of the electric control box, remove the
top cover, and open the electric control box.
Do not drop the screws into the indoor unit and mind the fins when open the front board.
The following items must be installed onsite: power cable to the indoor unit, external
signal cable to the indoor unit, voltage jumper of the indoor unit. The following items are
optional for onsite connection: teamwork networking and monitoring cables, water
sensor, humidity and temperature (T/H) sensor outside the cabinet, and SNMP
monitoring cable.
Precautions
Connections of all power cables, control cables, and ground cables must comply with the
local electrical code, and the cable specifications should comply with the local cabling
specifications.
Only trained and qualified personnel are allowed to connect cables, and protective
articles are needed to be worn, such as ESD gloves.
For details about the currents in full load, see the NetCol5000-A nameplate.
All the NetCol5000-As are grounded.
Keep cables away from the compressor, fans, and copper pipes (otherwise, take
protective measures), and connect cables properly.
3.11.2 Connecting the Power Cable to an Indoor Unit
To ensure that the NetCol5000-A is effectively grounded, route a PE cable from the PE
ground bar of the indoor unit to the ground bar of the equipment room.
Figure 3-39 shows the zoomed-in view of the indoor unit power ports. L1, L2, L3, and PE bar
connect to the corresponding power ports.
Select the cable model based on the maximum running current of the indoor unit, which
shows in 2.4 Technical Specifications.
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