● If one-way pipeline of the NetCol500-A0265S11E0 without low-temperature
components is 80 meters long, amount of refrigerant to be charged = 9 + (80 – 10) x
0.19 = 22.3 (kg).
● If one-way pipeline of the NetCol500-A0265S11E0 with low-temperature components is
80 meters long, amount of refrigerant to be charged = 23.5 + (80 – 10) x 0.19 = 36.8
(kg).
4.1.2 Vacuumizing
Procedure
Step 1 Connect a pressure gauge to the vacuum pump.
Figure 4-1 Vacuumizing
(1) Pressure gauge
(2) Vacuum pump
(3) Discharge pipe needle valve (4) Low-pressure needle valve
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. 101
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