Huawei FusionModule1000A20 Maintenance Manual page 82

FusionModule1000A20 Prefabricated All-in-One
Data Center
Maintenance Guide
Preparations
Tools: Phillips screwdriver, flat-head screwdriver, key to the PDF door, step ladder
Materials: spare input switch
Documents: documents delivered with the PDF
Skill requirement: power distribution engineers
Procedure
Step 1 Open the front door of the PDF, turn off the output switches in the PDF, and turn
off the upstream and downstream switches.
Step 2 Remove the protective panel of the PDF.
Step 3 Remove the three screws from the upper short-circuit copper bar using a socket
wrench and take out the short-circuit copper bar.
Step 4 Loosen the six screws that secure the input switch to the copper bar.
Step 5 Remove the two screws that secure the input switch to the base, and pull out the
input switch.
Figure 6-2 Removing an input switch
Step 6 Install the new input switch and secure it using screws.
Step 7 Reinstall the short-circuit copper bar.
Step 8 Reinstall the protective panel of the PDF.
Step 9 Turn on the upstream, input, and output switches of the PDF.
Step 10 Check that the new input switch is working properly.
Step 11 Turn on downstream switches of the PDF.
----End
Follow-up Procedure
Dispose of the removed input switch that is confirmed faulty.
Issue 03 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
6 Parts Replacement
75