Replacing An Internal Horn Strobe (Ce) - Huawei FusionModule1000A40 Maintenance Manual

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
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5.4.2.4 Replacing an Internal Horn Strobe (CE)

Prerequisites
A spare horn strobe of the same model is available and functional.
Impact on the System
The fire extinguishing system stops working during the replacement.
Preparations
Tools: Phillips screwdriver, step ladder
Materials: spare horn strobe
Documents: fire extinguishing drawings and parameters
Skill requirement: fire engineer
Before replacing the horn strobe, inform the related administrative department of
the temporary downtime of the fire control system. After the replacement, inform
the administration department that the system has become operational.
Procedure
Step 1 Disconnect the battery cables, and switch off the input circuit breaker of the
extinguishant control panel.
Step 2 Rotate the horn strobe cover counterclockwise and remove it.
Step 3 Remove cables from the horn strobe.
● While removing cables, label the cables with the corresponding terminal ports
for later connection.
● As a terminal resistor is connected to the last internal horn strobe in parallel,
remove the terminal resistor from the faulty horn strobe, and connect the
resistor to the new horn strobe when you replace the horn strobe.
Issue 04 (2021-02-10)
NO TE
If the warning sign turns on, the warning sign is working properly.
Press the reset button on the pneumatic switch.
Flip the key Enable Control rightward. Reset the extinguishant control panel
by pressing Reset on it. Then, reset the key Enable Control leftward.
NO TICE
NO TICE
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5 Parts Replacement
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