Prerequisites
Tools: protective gloves, step ladder, Phillips screwdriver
Material: spare smoke detector
Document: re extinguishing device layout diagram (standard)
Skill requirement:
re engineer
Before replacing the smoke detector, inform the related administration department of the
temporary downtime of the re extinguishing system. After the replacement, inform the
administration department that the system has become operational.
Procedure
Step 1 Switch
o the active and standby power supplies to the re alarm control panel.
Step 2 Hold the smoke detector by hand, and rotate it counterclockwise to remove it
from the base.
Figure 4-65 Removing a smoke detector
Step 3 Remove cables from the base using a Phillips screwdriver.
Step 4 Remove the screws on the base using a Phillips screwdriver, and remove the base.
Step 5 Install the new base in the same position, and reconnect the cables.
Step 6 Hold the smoke detector body, align the smoke detector indicator with the
position shown by (1) in Figure 4-66, and turn the detector body clockwise to the
position shown by (2) in Figure 4-66 to install the smoke detector.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 121
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