Huawei FusionModule1000A40 ICT Solution Maintenance Manual page 172

FusionModule1000A40 ICT Solution
Maintenance Guide
Preparations
Tools: Phillips screwdriver, protective gloves
Materials: spare extinguishant control panel
Documents: delivered with the extinguishant control panel
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.
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 4-109 Removing the extinguishant control panel
Step 6 Install the new extinguishant control panel in the same position.
Issue 01 (2019-03-05)
While removing the cables, label the cables with their corresponding port numbers for later connection.
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4 Parts Replacement
165