Huawei SmartLi Series Quick Manual page 2

2
Installing a Fire Cylinder
1. Remove the rear panel of the cabinet.
2. Remove the fire cylinder.
a) Remove the fire cylinder fastener.
b) Take out the fire cylinder.
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.
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, please pay
attention that the valve, container and other parts
should keep clean and not polluted.
•
This filling instruction only refers to the process of
valve installation and extinguishing agent filling, and
the rest should be performed according to the filling
process of each filling station (including bottle washing,
pressure testing, etc.).
a) Install the hose to the fire cylinder and tighten the connection nut.
b) Remove the valve positioning kit and open the valve.
c) Fill extinguishant into the fire cylinder through the hose.
d) After the extinguishant is filled, close the valve.
e) Slowly fill the drive gas (nitrogen) through the hose and open the valve again.
f) Shake the cylinder evenly and keep the pressure in the cylinder in the range of
1.7–1.8 MPa at 20℃.
g) After the pressure is stable, close the valve.
h) Reinstall the valve positioning kit.
5. Check the status of the fire cylinder after filling extinguishing agent. If the fire cylinder is not
installed in the cabinet immediately after extinguishing agent is filled, check the status of the fire
cylinder again before installation.
•
Check that the ball valve is closed (vertical to the cylinder).
•
Check that the reading of the pressure gauge on the fire cylinder is greater than 1.6 MPa at
20℃ and the pointer is in the green zone.
6. Install the fire cylinder.
•
Keep the fire cylinder upright.
•
Ensure that the front of the
pressure gauge faces the
right side of the cabinet (as
shown in the figure) and that
the cylinder does not
interfere with the battery
trays and the rear cover of
the cabinet.
2
Valve positioning kit
Valve
Pressure gauge