SmartACU2000B smart array controller
User Manual (with PID modules, 800 V AC)
7 System Maintenance
Issue 05 (2019-01-20)
Copyright © Huawei Technologies Co., Ltd.
90
Procedure
Step 1
Remove the faulty surge protection module from the SPD.
Figure 7-1
Removing a faulty surge protection module
Step 2
Install the new surge protection module.
Figure 7-2
Installing a surge protection module
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7.3.2 Replacing the Three-Phase Input Switch (Circuit Breaker)
Prerequisites
The three-phase input switch is faulty.
A spare three-phase input switch of the same model is available and functional.
Procedure
Step 1
Remove the protective cover from the wiring terminals on the faulty three-phase input switch.
Step 2
Disconnect cables from the faulty three-phase input switch, and label the cables.
Step 3
Remove the wiring nuts from both sides at the bottom.