FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5.2 Replacing Cooling System Components
5.2.1 Replacement Requirements
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.
5.2.2 Replacing Components in the Electric Control Box
Prerequisites
A component in the electric control box needs to be replaced.
A spare and functional component is available.
Context
Recommended tool: Phillips screwdriver (M6)
Preparations: The rear door is removed, and the device is powered off.
Figure 5-29, Figure 5-30 and Figure 5-31 show the components in the electric control box.
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