Before replacing the re alarm sounder, 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
Step 1 Switch o the active and standby power supplies to the re alarm control panel.
Step 2 Push the re alarm sounder out of the base.
Figure 4-74 Removing the
re alarm sounder
Step 3 Cut o the power cable of the re alarm sounder, as shown in Figure 4-75.
Figure 4-75 Cutting o the power cable
Step 4 Connect the input wires with the two wires (polarity insensitive) of the spare re
alarm sounder and wrap the connection points using insulation tape.
Cord end terminals are recommended if applicable.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 130
To Next Page
Loading...
