Figure 4-34 Precharging refrigerant when low-temperature component is not
installed
(1) Pressure gauge (2) Coupling nut (3) Refrigerant steel cylinder
(4) Electric balance (5) Discharge pipe needle
valve
(6) Low-pressure needle
valve
● If there are low-temperature components, open the low-pressure valves of
pressure gauge 1 and pressure gauge 2, and charge the remaining refrigerant
from the low-pressure needle valves in small
ow or intermittently.
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 4 Power-On Commissioning
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 159
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