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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.
Procedure
Step 1 Switch off the active and standby power supplies to the fire alarm control panel.
Figure 4-81 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
. Disconnect cables from the
electromagnetic valve, as shown in
.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
4 Parts Replacement
Issue 01 (2021-04-20)
Copyright © Huawei Technologies Co., Ltd.
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