Huawei FusionModule1000A40 Maintenance Manual page 133

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
Impact on the System
The fire extinguishing system stops working during the replacement.
Preparations
Tools: Phillips screwdriver, step ladder
Materials: spare horn strobe, key to the control box
Documents: fire extinguishing drawings and parameters
Skill requirement: fire engineer
Before replacing the horn strobe, inform the related administrative department of
the temporary downtime of the fire control system. After the replacement, inform
the administration department 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 Rotate the horn strobe cover counterclockwise and remove it.
Figure 5-71 Removing the cover
Step 3 Remove the cables to the horn strobe.
While removing cables, label the cables with the corresponding terminal ports for
later connection.
Issue 04 (2021-02-10)
NO TICE
NO TICE
Copyright © Huawei Technologies Co., Ltd.
5 Parts Replacement
126