FusionModule1000A40 IT Solution
Maintenance Guide (2016.05, AI Version)
5 Components Replacement
Issue 04 (2018-01-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
138
Impact on the System
The fire extinguishing system stops working during the replacement.
Preparations
Tools: Phillips screwdriver, protective gloves, step ladder
Materials: spare warning signs indicator
Document: fire extinguishing device layout diagram (CE)
Skill requirement: fire engineer
For the diagrams, see the initial configuration parameter manual for the solution in use.
Before replacing the warning signs indicator, inform the related administrative
departments of the temporary downtime of the fire extinguishing system. After the
replacement, inform the administrative departments that the system has become
operational.
Procedure
Step 1
Disconnect the battery cables, and switch off the input circuit breaker of the extinguishant
control panel.
Step 2
Loosen the screws securing the warning sign cover and base using a Phillips screwdriver, and
remove the warning sign cover.
Figure 5-68
Removing the screws
Step 3
Remove the warning sign cables.