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FusionModule1000A20 Prefabricated All-in-One Data
Center
Maintenance Guide
4.4.2 Replacing a Heat Detector (CE)
Prerequisites
A spare heat detector of the same model is available and functional.
Impact on the System
The fire extinguishing system stops working during the replacement.
Preparations
Tools: protective gloves, step ladder, Phillips screwdriver
Materials: spare heat detector
Document: fire extinguishing device layout diagram (CE)
Skill requirement: fire engineer
Procedure
Step 1 Disconnect the battery cables, and switch off the input circuit breaker of the extinguishant
control panel.
Step 2 Hold the heat detector, and rotate it counterclockwise to remove it from the base.
Figure 4-25 Removing a heat detector
Step 3 Remove cables from the base using a Phillips screwdriver.
Issue 01 (2019-07-15)
Before replacing the heat detector, inform the related administration department of the
temporary downtime of the fire control system. After the replacement, inform the
administration department that the system has become operational.
Copyright © Huawei Technologies Co., Ltd.
4 Parts Replacement
58
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