4.2.1 Charging the Refrigerant and Refrigerant Oil
Table 4-1 Charge of refrigerant and refrigerant oil
Total One-
way Length
Item
NetCol500-0
72
NetCol500-0
72 (including
low-
temperature
component)
NetCol500-0
88
L ≤ 10 m
Standard
refrigerant
charge (kg)
11
25
18
Refrigerant oil
charge (kg)
0
0.35
0
10 m < L ≤ 30
m
Refrigerant
charge =
Standard
refrigerant
Additional
refrigerant
charge (kg)
= 11 + 0.14 x
(L - 10)
= 25 + 0.14 x
(L - 10)
= 18 + 0.14 x
(L - 10)
Refrigerant oil
charge (kg)
= (Refrigerant
charge - 11) x
2.5%
= (Refrigerant
charge - 11) x
2.5%
= (Refrigerant
charge - 18) x
2.5%
30 m < L ≤ 60
m
Refrigerant
charge =
Standard
refrigerant
Additional
refrigerant
charge (kg)
= 11 + 0.2 x
(L - 10)
= 25 + 0.2 x
(L - 10)
= 18 + 0.2 x
(L - 10)
Refrigerant oil
charge (kg)
= (Refrigerant
charge - 11) x
2.5%
= (Refrigerant
charge - 11) x
2.5%
= (Refrigerant
charge - 18) x
2.5%
NO TE
The calculation is used to single system.
4.2.2 Vacuumization
Prerequisites
●
Before vacuumization, ensure that all connectors are tightened and the ball
valve of the cooling system is open.
NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
4 Power-On Commissioning
Issue 12 (2020-10-28)
Copyright © Huawei Technologies Co., Ltd.
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