FusionModule1000A20 Prefabricated All-in-One Data
Center
Maintenance Guide
4 Parts Replacement
Issue 01 (2019-07-15)
Copyright © Huawei Technologies Co., Ltd.
64
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 4-30
Removing cables from the horn strobe
Step 4
Remove screws from the horn strobe using a Phillips screwdriver, and remove the base.
Step 5
Reconnect the cables. Install the new base and 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.
Disconnect the wiring terminals from the electrical actuator on the fire cylinder.
After the wiring terminals are disconnected from the electrical actuator, the extinguishant control panel
generates an alarm, which is normal.
2.
Press the manual gas release button on the extinguishant control panel.
That the horn strobe is triggered indicates that the horn strobe works properly.
3.
Reset the manual gas release button.
4.
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).
----End
