Figure 8-33 Removing the re cylinder
Step 3 Check the re cylinder and all components for any damage, abrasion, or corrosion.
If there is any visible abrasion or corrosion, replace the damaged components and
all corroded components.
Step 4 Send the
re cylinder to the gas station to ll extinguishant. Heptauoropropane
is recommended. The required amount is 3 kg.
● In the process of assembling and lling, ensure that the valve, container, and
other parts are clean and not polluted.
● The internal impurities of the re cylinder have been cleaned and the container
valve has been sealed. Do not remove the container valve and its components.
For other operations, see the related
lling specications.
1. Connect the extinguishant lling port of the container valve to the
extinguishant
lling device. The thread specication of the extinguishant
lling port is M10x1.
2. Remove the valve positioning kit, open the valve, and ll 3 kg extinguishant.
Close the valve after lling the extinguishant.
3. Connect the lling port of the container valve to the nitrogen lling device,
open the valve, and
ll nitrogen until the lling pressure reaches the specied
value. After lling nitrogen, close the valve.
4. Shake the cylinder for 10 times and then ll nitrogen until the pressure
reaches the specied value. Repeat this step for two to three times until the
pressure does not change. Then install the valve positioning kit. After 12
hours, observe the pressure again. If the pressure does not reach the value
FusionDC1000A Prefabricated All-in-One Data
Center
Installation Guide (IT Scenario) 8 Installing Devices Inside the Pre-fab. Module
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 93
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