Huawei FusionDC1000A Installation Manual page 101

FusionDC1000A Prefabricated All-in-One Data
Center
Installation Guide (IT Scenario)
5.
Step 5 Check the status of the fire cylinder after filling extinguishant. If the fire cylinder is
not reinstalled immediately after extinguishant is filled, check the status of the fire
cylinder again before installation.
●
●
Step 6 Reinstall the fire cylinder.
● Keep the fire cylinder upright.
● Ensure that the front of the pressure gauge faces the right side of the cabinet
and that the cylinder does not interfere with the battery trays and the rear
cover of the cabinet.
Step 7 Install the fire-trace tube.
Do not bend or twist the fire-trace tube. Otherwise, extinguishant may leak.
Issue 01 (2021-04-20)
listed in the following table, add nitrogen until the pressure reaches the
required value.
Table 8-2 Mapping between temperatures and pressures
Temperature (°C)
0
10
20
25
30
40
After the filling is complete, check for leakage according to the procedure of
the filling station.
Check that the 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°C and the pointer is in the green zone.
NO TICE
NO TICE
Copyright © Huawei Technologies Co., Ltd.
8 Installing Devices Inside the Pre-fab. Module
Recommended
Pressure
12 bar (1.2 MPa)
14 bar (1.4 MPa)
17 bar (1.7 MPa)
18.5 bar (1.85 MPa)
20 bar (2.0 MPa)
23 bar (2.3 MPa)
Allowed Pressure
Range
11–13 bar (1.1–1.3
MPa)
13–15 bar (1.3–1.5
MPa)
16–18 bar (1.6–1.8
MPa)
17.5–19.5 bar (1.75–
1.95 MPa)
19–21 bar (1.9–2.1
MPa)
22–24 bar (2.2–2.4
MPa)
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