Step 7 After verifying that the new heat detector is properly installed, switch on the
active and standby power supplies to the re alarm control panel.
Step 8 Check that the new heat detector is working properly.
If the red indicator blinks once every 6s, the heat detector is working properly.
----End
Follow-up Procedure
Dispose of the removed heat detector that is conrmed faulty.
4.4.4 Replacing an Input/Output Module
Prerequisites
A spare input/output module of the same model is available and functional.
Impact on the System
The re extinguishing system stops working during the replacement.
Prerequisites
Tools: Phillips screwdriver, protective gloves
Material: input/output module
Documents:
re extinguishing drawings and parameters
Skill requirement: re engineer
Before replacing the input/output module, 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
1. Switch o the active and standby power supplies to the re alarm control
panel.
2. Open the cover of the input/output module and remove it.
3. Remove cables from the input/output module
4. Remove the screws on the bottom box using a Phillips screwdriver, and
remove the box.
5. Insert the output plug of the encoder into the encoding socket of the new
input/output module, adjust the encoder to the encoding function, set the
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 124
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