Step 4 Remove the re extinguishing pipe.
1. Remove the high-pressure hose.
2. Remove the I-shaped connection pipe.
3. Remove the threaded adapter from the container valve of the
re cylinder.
Step 5 Remove the pneumatic switch.
Step 6 Loosen the straps on the re cylinder.
Step 7 Remove the faulty re cylinder from the installation position.
Step 8 Move the new
re cylinder to the installation position, and tighten the straps.
Keep the pressure gauge panel outward so that people can view the reading.
Step 9 Connect the re cylinder to the re extinguishing pipeline.
Wrap the threads with sealing tape to ensure air tightness.
1. Connect the threaded adapter to the re cylinder.
2. Connect the I-shaped connection pipe to the threaded adapter.
3. Connect the high-pressure hose.
Step 10 Reinstall the electrical actuator to the container valve of the re cylinder.
1. Verify that the electrical actuator ejector is reset. If the ejector is not reset,
press the ejector.
That the ejector is not reset may lead to extinguishant release.
Figure 4-108 Operating the electrical actuator ejector
2. Align the electrical actuator and the container valve, and tighten the actuator
clockwise.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 160
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