Installing The Outdoor Unit; Checking The Nitrogen Pressure - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Figure 4-37 Securing the top frame
----End

4.5 Installing the Outdoor Unit

4.5.1 Checking the Nitrogen Pressure

Context
Before delivery, outdoor units are injected with nitrogen to 0.2–0.6 MPa. Before
connecting pipes, the nitrogen inside pipes must be discharged.
Nitrogen must be discharged; otherwise, air jets emitted during pipe welding may
cause bodily injuries.
Procedure
Step 1 Connect the rubber hose to the pressure gauge, and tighten all pressure gauge
valves.
Step 2 Remove the needle valve bonnet from the outdoor unit, and connect the other
end of the hose to the outdoor unit needle valve, as shown in
Issue 13 (2023-08-20)
CA UTION
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 Installation
Figure 4-38.
80