Step 2 Remove the bonnets of the three needle valves on the low temperature
component, and connect the other end of the hose to the three needle valves in
turn, as shown in Figure 4-54.
Figure 4-54 Checking the pressure of the low temperature component
(1) Needle valve 1 (2) Needle valve 2 (3) Needle valve 3
● If the pressure gauge reading is no less than 0.2 MPa, the unit is airtight.
Then open the pressure gauge valve where the hose is connected to discharge
nitrogen. After the discharge is complete, remove the hose and reinstall the
valve bonnet.
● If the pressure gauge reading is less than 0.2 MPa, pipes have leakage points,
and you need to contact Huawei technical support.
----End
4.6.2 Removing the Pallet
Remove the four screws securing the low temperature component to the pallet
using an adjustable wrench, as shown in Figure 4-55. Remove the pallet.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 4 Installation
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 82
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