Huawei NetCol5000-C030H90D0 User Manual page 67

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual (2019)
Pipes have been properly connected.
Procedure
Step 1 Manually turn the chilled water valve to the maximum (100%), as shown in
Figure
Step 2 Connect a reducing valve, pressure gauge, and nitrogen cylinder to any needle
valve of the smart cooling product, as shown in
0.8 MPa nitrogen (the pressure should reach 0.8 MPa after it is stabilized), and
keep it for 24 hours.
Figure 3-37 Injecting nitrogen (NetCol5000-C065)
Figure 3-38 Injecting nitrogen (NetCol5000-C030/C032)
Step 3 After 24 hours, if the pressure drop is less than 0.01 MPa, the pipes do not leak.
Open the exhaust valve using a screwdriver, and close the valve when there is no
airflow through the valve. Then you can perform the following operations.
Issue 03 (2020-08-30)
3-14.
Copyright © Huawei Technologies Co., Ltd.
Figure 3-37 or Figure
3 Installation
3-38. Inject
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