Huawei LUNA2000-2.0MWH Series User Manual page 117

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Step 3 Remove the high-pressure elbow from the changeable-diameter joint using a
torque wrench.
Step 4 (Optional) Remove the changeable-diameter joint from the release vent using a
torque wrench.
Step 5 Install the safety cap of the release vent.
Step 6 Remove the fire cylinder from the bracket.
Figure 4-12 Removal process diagram
Step 7 Fill the fire cylinder with extinguishant.
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Issue 08 (2022-11-15)
NO TE
If there is no changeable-diameter joint, remove the high-pressure elbow directly from the
fire cylinder.
NO TE
If there is no changeable-diameter joint on the fire cylinder, skip this step.
Extinguishant: heptafluoropropane
Extinguishant weight: 26 kg (maximum: 27 kg)
Purity requirement: not less than 99.9%.
For details about the cylinder pressure (by filling nitrogen), see the table
below.
Table 4-4 Pressure requirements under different ambient temperatures
Ambient Temperature
(℃)
0
5
10
15
20
Copyright © Huawei Technologies Co., Ltd.
Pressure (Bar) of
227M38UFAA
20.2
21.4
22.6
23.8
25.0
4 Installation
Pressure (Bar) of
SPS020-MS-032B-EN
16.92
18.85
20.77
22.69
24.62
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