Figure 4-35 Precharging refrigerant when a low-temperature component is
installed
(1) Pressure gauge 1 (2) Pressure gauge 2 (3) Coupling nut (4) Refrigerant steel
cylinder
(5) Electric balance (6) Discharge pipe
needle valve
(7) Liquid pipe needle
valve
(8) Low-pressure
needle valve
Step 5 On the home screen, choose Running > Device Details > Compressor, and view
Suction pressure and Discharge pressure to determine whether they are within
normal ranges. Choose Running > Device Details > EEV, and view the EEV
suction superheat degree to determine whether it is within normal ranges.
Table 4-21 Normal discharge pressure ranges
Ambient
Temperature
Discharge
Pressure Range
Suction pressure
range
Overheating
degree range
< 15°C 1.5–2.5 MPa 0.7–1.2 MPa 8–15°C
15–35°C 1.5–3.1 MPa
35–45°C 2.5–3.8 MPa
> 45°C 3.1–4.15 MPa
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. 160
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