Huawei FusionDC1000A Maintenance Manual page 173

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
Skill requirement: fire engineer
Before replacing the extinguishant control panel, inform the related administrative
departments of the temporary downtime of the fire extinguishing system. After
the replacement, inform the administration department that the system has
become operational.
Procedure
Step 1 Switch off the input circuit breaker on the extinguishant control panel.
Step 2 Remove the cables from the battery, and take out the battery.
Step 3 Remove all cables connected to the terminals on the extinguishant control panel.
While removing the cables, label the cables with their corresponding port numbers for later
connection.
Step 4 Remove the corrugated pipes and cables from the extinguishant box.
Step 5 Remove the screws using a Phillips screwdriver, and take out the faulty
extinguishant control panel.
Figure 4-114 Removing the extinguishant control panel
Step 6 Install the new extinguishant control panel in the same position.
Step 7 Put the corrugated pipes and cables back to the box, and reconnect the cables
according to labels.
Step 8 Put the batteries to the same position.
Step 9 Switch on the input circuit breaker of the extinguishant control panel, and connect
the battery cables.
Issue 01 (2021-04-20)
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4 Parts Replacement
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