Huawei FusionDC1000A Maintenance Manual page 129

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
Prerequisites
Tools: protective gloves, step ladder, Phillips screwdriver
Material: spare smoke detector
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 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
position shown by (2) in
Issue 01 (2021-04-20)
NO TE
Before replacing the smoke detector, 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.
Figure
Figure 4-66
Copyright © Huawei Technologies Co., Ltd.
4-66, and turn the detector body clockwise to the
to install the smoke detector.
4 Parts Replacement
121