Replacing A Fire Alarm Sounder - Huawei FusionDC1000A Maintenance Manual

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
Procedure
Step 1 Disconnect the battery cables, and switch off the input circuit breaker of the fire
alarm control panel.
Step 2 Open the cover of the fire alarm horn/strobe and remove it.
Step 3 Remove cables from the fire alarm horn/strobe.
Step 4 Remove screws from the fire alarm horn/strobe base using a Phillips screwdriver,
and remove the base.
Step 5 Insert the output plug of the encoder into the encoding socket of the new fire
alarm horn/strobe, adjust the encoder to the encoding function, set the original
address, and press the Execute button to complete the address encoding.
Step 6 Install the new fire alarm horn/strobe, connect the cables, and install the cover.
Figure 4-73 Connecting cables
----End

4.4.8 Replacing a Fire Alarm Sounder

Prerequisites
A spare fire alarm sounder of the same model is available and functional.
Impact on the System
The fire extinguishing system stops working during the replacement.
Prerequisites
Tools: needle-nose pliers, insulation tape, protective gloves, step ladder
Materials: spare fire alarm sounder, cord end terminals
Document: fire extinguishing device layout diagram (standard)
Skill requirement: fire engineer
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd.
4 Parts Replacement
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