Huawei NetCol5000-A User Manual page 146

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Figure 5-1 Charging in refrigerant oil
(1) Liquid pipe needle valve
(4) Refrigerant oil bucket
(7) Low pressure gauge 2
valve
Step 2 Close Low pressure gauge 1 valve, and open other pressure gauge valves.
Step 3 Open the vacuum pump to charge refrigerant oil to the cooling system. Close the vacuum
pump when the charging is done.
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Issue 13 (2019-01-15)
(2) Discharge pipe needle
valve
(5) Low pressure gauge 1
valve
(8) High pressure gauge 2
valve
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5 Power-On Commissioning
(3) Low-pressure needle
valve
(6) High pressure gauge 1
valve
(9) Vacuum pump
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