Replacing A Gas Release Indicator - Huawei FusionDC1000A Maintenance Manual

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
6.

4.4.5 Replacing a Gas Release Indicator

Prerequisites
A spare gas release indicator 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, protective gloves, step ladder, flat-head screwdriver
Material: spare gas release indicator
Document: fire extinguishing device layout diagram (standard)
Skill requirement: fire engineer
Before replacing the gas release indicator, 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.
Procedure
Step 1 Switch off the active and standby power supplies to the fire alarm control panel.
Step 2 Remove the screws shown in
the panel.
Issue 01 (2021-04-20)
original address, and press the Execute button to complete the address
encoding.
Install the new input/output module, connect the cables, and install the cover.
Figure 4-69 Connecting cables
NO TICE
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Figure 4-70 using a Phillips screwdriver, and remove
4 Parts Replacement
125