Huawei FusionModule1000A40 Maintenance Manual page 117

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
Procedure
Step 1 Switch off the active and standby power supplies to the fire alarm control panel.
Figure 5-51 Switching off the active and standby power supplies
Step 2 Disconnect the interconnection cables between the electromagnetic valve and the
fire alarm control panel, as shown in
electromagnetic valve, as shown in
Issue 04 (2021-02-10)
NO TE
Before replacing the fire cylinder, inform the related administration department of the
temporary downtime of the fire extinguishing system. After the replacement, inform the
administration department that the system has become operational.
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Figure 5-52. Disconnect cables from the
Figure 5-53.
5 Parts Replacement
110