SmartLi-80Ah
User Manual
3 Installation
Issue 02 (2020-05-17)
Copyright © Huawei Technologies Co., Ltd.
31
Figure 3-2
Removing the fire cylinder
Step 3
Check the fire 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 fire cylinder to the gas station to fill extinguishant. Heptafluoropropane or
perfluorohexone is recommended. The required amount is 3 kg.
In the process of assembling and filling, ensure that the valve, container, and other parts
are clean and not polluted.
This filling instruction only refers to the process of valve installation and extinguishant
filling, and the rest should be performed according to the filling process of the specific
filling station (including cylinder washing, pressure testing, and others).
1.
Install the hose to the fire cylinder and tighten the connection nut.
2.
Remove the valve positioning kit and open the valve.
3.
Fill extinguishant into the fire cylinder through the hose.
4.
After the extinguishant is filled, close the valve.
5.
Slowly fill the drive gas (nitrogen) through the hose and open the valve again.
6.
Shake the cylinder evenly and keep the pressure in the cylinder in the range of 1.7–1.8
MPa at 20°C.
7.
After the pressure is stable, close the valve.
8.
Reinstall the valve positioning kit.
Step 5
Check the status of the fire cylinder after filling extinguishant. If the fire cylinder is not
installed in the cabinet immediately after extinguishant is filled, check the status of the fire
cylinder again before installation.