Procedure
Step 1 Connect the pressure gauge, hose, and nitrogen cylinder. Install a reducing valve at
the outlet of the nitrogen cylinder, as shown in Figure 3-42. The outlet pressure of
the reducing valve must not be more than 3.0 MPa.
If the outlet pressure of the reducing valve is greater than 3.0 MPa, some parts of
the system may be damaged.
Figure 3-42 Leakage test with nitrogen
(1) Nitrogen cylinder
(2) Reducing valve (3) Low-pressure gauge
(4) High-pressure gauge (5) Discharge pipe needle
valve
(6) Low-pressure needle valve
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 3 Installation Guide
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 72
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