Replacing A Fire Alarm Horn/Strobe - Huawei FusionDC1000A Maintenance Manual

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
Follow-up Procedure
Dispose of the removed gas release indicator that is confirmed faulty.

4.4.6 Replacing a Fire Alarm Horn/Strobe

Prerequisites
A spare fire alarm horn/strobe of the same model is available and functional.
Impact on the System
The fire extinguishing system stops working during the replacement.
Prerequisites
Tools: Phillips screwdriver, flat-head screwdriver, step ladder
Material: spare fire alarm horn/strobe
Document: fire extinguishing device layout diagram (standard)
Skill requirement: fire engineer
Procedure
Step 1 Switch off the active and standby power supplies to the fire alarm control panel.
Step 2 Pry open a seam at the top clip using a flat-head screwdriver to separate the top
cover from the base.
Figure 4-72 Removing the fire alarm horn/strobe
Issue 01 (2021-04-20)
NO TE
Before replacing the fire alarm horn/strobe, inform the related administration department
of the temporary downtime of the fire extinguishing system. After the replacement, inform
the administration department that the system has become operational.
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4 Parts Replacement
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