Cable Connections; Overview And Precautions - Huawei NetCol5000-C Series User Manual

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)
Procedure
Step 1 Confirm that the needle valves and exhaust values on the pipeline are closed. Ensure that the
chilled water valve is fully open (100%), as shown in
Step 2 Open the main water inlet valve.
Step 3 Open the air exhaust valve to exhaust the air and chilled water, as shown in
Step 4 Adjust the air exhausting speed until no bubbles flow out the hose.
Step 5 Rotate the chilled water valve to the minimum scale (0) after exhausting the air.
Step 6 Close the air exhaust valve.
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3.14 Cable Connections

3.14.1 Overview and Precautions

Overview
The following operations are required onsite:
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Precautions
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Issue 09 (2020-01-10)
Connecting an equipotential PE cable
Connecting power cables to the indoor unit
Connecting cables to the temperature and humidity (T/H) sensor (1 PCS in standard
configuration) and setting the DIP switch on the sensor
Connecting teamwork cables to indoor units and setting the DIP switch on the main
control board
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.
For details about the maximum current, see the equipment nameplate.
Ensure that the voltage and frequency of the primary power supply meet the
requirements.
Only trained and qualified personnel are allowed to connect cables.
Before connecting cables, use a multimeter to measure the input voltage and ensure that
the power supply is off.
Ensure that all smart cooling products are safely grounded before powering them on.
Keep cables away from components such as water pumps, fans, floats, humidifier
cylinders, and electric heaters (if unavoidable, take protective measures). Ensure that
cables should be securely connected.
When laying out cables, route all signal cables (such as the equipotential PE cable,
indoor unit communications cable, and T/H sensor cable) inside the equipment through
corrugated pipes.
Copyright © Huawei Technologies Co., Ltd.
Figure 3-32.
Figure
3 Installation
3-15.
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