Huawei FusionModule1000A20 Maintenance Manual page 122

FusionModule1000A20 Prefabricated All-in-One
Data Center
Maintenance Guide
Figure 6-37 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 extinguisher cylinder using a pallet truck to a position near the
pre-fab. module door.
● Do not impact or strike the fire extinguisher 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.
Step 4 Disconnect the fire extinguisher cylinder and fire extinguishing pipeline.
1.
2.
3.
Step 5 Loosen the straps on the fire extinguisher cylinder.
Step 6 Remove the faulty fire extinguisher cylinder from the installation position.
Step 7 Move the new fire extinguisher cylinder to the installation position, and tighten
the straps.
Keep the pressure gauge panel outward so that people can view the reading.
Step 8 Connect the fire extinguisher cylinder to the fire extinguishing pipeline.
Wrap the threads with sealing tape to ensure air tightness.
1.
2.
Issue 03 (2022-12-15)
NO TICE
Remove the high-pressure hose.
Remove the I-shaped connection pipe.
Remove the threaded adapter from the container valve of the fire
extinguisher cylinder.
NO TICE
NO TICE
Connect the threaded adapter to the fire extinguisher cylinder.
Connect the I-shaped connection pipe to the threaded adapter.
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6 Parts Replacement
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