Huawei FusionModule1000A20 Maintenance Manual page 113

FusionModule1000A20 Prefabricated All-in-One
Data Center
Maintenance Guide
● While removing cables, label the cables with its corresponding terminal ports
for later connection.
● As a terminal resistor is connected to the last horn strobe in the loop 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.
Figure 6-28 Removing cables from the horn strobe
Step 4 Remove screws from the horn strobe base using a Phillips screwdriver, and remove
the base.
Step 5 Install the new horn strobe in the same way, connect the cables, and install the
cover.
Step 6 Switch on the input circuit breaker of the extinguishant control panel, and connect
the battery cables.
Step 7 Check that the new horn strobe is working properly.
1.
2.
3.
4.
----End
Issue 03 (2022-12-15)
NO TICE
Disconnect the wiring terminals from the electrical actuator on the fire
extinguisher cylinder.
NO TE
After the wiring terminals are disconnected from the electrical actuator, the extinguishant
control panel generates an alarm, which is normal.
Press the manual gas release button on the extinguishant control panel.
NO TE
That the horn strobe is triggered indicates that the horn strobe works properly.
Reset the manual gas release button.
Flip the key to Enable Control counterclockwise (rightward). Reset the
extinguishant control panel by pressing Reset on it. Then, reset key to Enable
Control clockwise (leftward).
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6 Parts Replacement
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