Leak Checking - Huawei NetCol5000-A021 User Manual

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)

3.10.4 Leak Checking

Context


The nitrogen injection ports are located at the low-pressure needle valve and discharge pipe
needle valve, as shown in
Procedure
Step 1 Connect the pressure gauge, hose, and nitrogen cylinder. A reducing valve is recommended to
be installed at the outlet of the nitrogen cylinder,
pressure preservation diagram. The outlet pressure must be no 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.
Issue 03 (2020-01-10)
The measuring range of the pressure gauges must be more than 4.0 MPa. The pipelines can
withstand pressure of more than 4.5 MPa.
Do not remove the pipelines and pressure gauges when retaining pressure to avoid gas
leakage.
Figure
Copyright © Huawei Technologies Co., Ltd.
3-40.
Figure 3-40
3 Installation Guide
shows the nitrogen injection and
67