Huawei FusionDC1000A Maintenance Manual page 167

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
Preparations
Tools: pipe wrench, pallet truck, Phillips screwdriver, adjustable wrench, protective
gloves
Materials: spare fire cylinder, sealing tape
Skill requirement: fire engineer
Before replacing the fire cylinder, inform the related administrative department of
the temporary downtime of the fire extinguishing system. In addition, remove the
cable connected to the 2ND STAGE NO terminal on the extinguishant control
panel to disable the linkage control function. After the fire cylinder is replaced,
reconnect the cable to the 2ND STAGE NO terminal on the extinguishant control
panel to enable the linkage control function, and inform the administrative
departments that the system has become operational.
Figure 4-107 Position of the 2ND STAGE NO terminal
Procedure
Step 1 Disconnect the battery cables, and switch off the input circuit breaker of the
extinguishant control panel.
Step 2 Move the new fire cylinder using a pallet truck to a position near the pre-fab.
module door.
● Do not impact or strike the fire cylinder during transportation or installation.
● Assign sufficient people for transportation and installation if no auxiliary tool is
available.
Step 3 Disconnect the interconnection terminals on the electrical actuator from the
extinguishant control panel. Remove the electrical actuator by rotating it
counterclockwise.
Issue 01 (2021-04-20)
NO TICE
NO TICE
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4 Parts Replacement
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