Huawei LUNA2000-2.0MWH-2H0 - Page 117

Step 3 Remove the high-pressure elbow from the changeable-diameter joint using a
torque wrench.
NO TE
If there is no changeable-diameter joint, remove the high-pressure elbow directly from the
re cylinder.
Step 4 (Optional) Remove the changeable-diameter joint from the release vent using a
torque wrench.
NO TE
If there is no changeable-diameter joint on the re cylinder, skip this step.
Step 5 Install the safety cap of the release vent.
Step 6 Remove the
re cylinder from the bracket.
Figure 4-12 Removal process diagram
Step 7 Fill the re cylinder with extinguishant.
● Extinguishant:
heptauoropropane
● Extinguishant weight: 26 kg (maximum: 27 kg)
● Purity requirement: not less than 99.9%.
● For details about the cylinder pressure (by lling nitrogen), see the table
below.
Table 4-4 Pressure requirements under dierent ambient temperatures
Ambient Temperature
(℃)
Pressure (Bar) of
227M38UFAA
Pressure (Bar) of
SPS020-MS-032B-EN
0 20.2 16.92
5 21.4 18.85
10 22.6 20.77
15 23.8 22.69
20 25.0 24.62
LUNA2000-2.0MWH Series Smart String ESS
User Manual 4 Installation
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 107