Parts Replacement; Replacement Requirements; Replacing Components In The Electric Control Box - Huawei NetCol5000-C Series User Manual

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)
Symptom
Water is frequently
supplied into the
humidifier and
drained out when
the water level
reaches the high
level detector.
Sparking occurs in
the humidifier
cylinder.

6.4 Parts Replacement

6.4.1 Replacement Requirements

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6.4.2 Replacing Components in the Electric Control Box

Prerequisites
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Context
Recommended tool: Phillips screwdriver (M6)
Preparations: The rear door is removed, and the device is powered off.
Issue 09 (2020-01-10)
Possible Causes
The electrical conductivity
of water in the humidifier is
too low.
The electrical conductivity
of water in the humidifier is
too high.
Before removing or installing the power cable, turn off the power switch.
Before connecting a power cable, check that the label on the power cable is correct.
During the installation of AC power supply facilities, follow the local safety regulations.
When operating the high-voltage and AC-powered facilities, use dedicated tools.
Ensure that a spare component is the same model as the faulty one is prepared before
replacing the faulty component.
Do not install or remove power cables when the device is on. Transient contact between
the core of the power cable and the conductor may generate electric arcs or sparks, which
may cause fire or hurt eyes.
Before removing cables from a faulty component, mark the cables with their
corresponding ports numbers for later connection (confirm by referring to the electrical
conceptual diagram).
Ensure that the cables are connected to the spare component properly.
A component in the electric control box needs to be replaced.
A spare and functional component is available.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Troubleshooting
Replace the humidifier cylinder that
has a low electrical conductivity, or
contact Huawei technical support.
Contact Huawei technical support.
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