Replacing An Mcb - Huawei FusionModule1000A20 Maintenance Manual

FusionModule1000A20 Prefabricated All-in-One
Data Center
Maintenance Guide
Step 5 Remove the screws from the inner layer of the copper bar below the ATS
controller.
Step 6 Remove the four screws that secure the ATS controller to the base and take out
the input switch.
Figure 6-4 Removing an input switch
Step 7 Install the new ATS controller and secure it using screws.
Step 8 Reinstall the copper bars and cables.
Step 9 Reinstall the protective panel of the PDF.
Step 10 Turn on the upstream and output switches of the PDF.
Step 11 Check that the new ATS controller is working properly.
Step 12 Turn on downstream switches of the PDF.
----End
Follow-up Procedure
Dispose of the removed ATS controller that is confirmed faulty.

6.1.2.4 Replacing an MCB

Prerequisites
A spare MCB of the same model is available and functional.
The PDC switch must be turned off. Ensure that the power input is disconnected during
replacement.
Issue 03 (2022-12-15)
NO TE
After power-on, the Power indicator of the controller lights up.
NO TE
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6 Parts Replacement
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