Huawei NetCol8000-A045D - Vacuumizing

Indoor Unit Outdoor Unit Refrigerant Charge Amount (L) (L is total
one-way pipe length) (kg)
NetCol8000-
A060U
(including a
low
temperature
component)
NetCol500-A080 42 42 + (L – 10)
x 0.23
42 + (L – 10)
x 0.31
NetCol8000-
A120D
system 1
NetCol500-A080 15.5 15.5 + (L –
10) x 0.23
15.5 + (L –
10) x 0.31
NetCol500-A110 22 22 + (L – 10)
x 0.23
22 + (L – 10)
x 0.31
NetCol8000-
A120D
system 2
NetCol500-A080 15.5 15.5 + (L –
10) x 0.23
15.5 + (L –
10) x 0.31
NetCol500-A110 22 22 + (L – 10)
x 0.23
22 + (L – 10)
x 0.31
NetCol8000-
A120D
system 1
(including a
low
temperature
component)
NetCol500-A080 42 42+ (L – 10)
×0.23
42 + (L – 10)
x 0.31
NetCol8000-
A120D
system 2
including a
low
temperature
component
NetCol500-A080 42 42 + (L – 10)
x 0.23
42 + (L – 10)
x 0.31
6.1.2 Vacuumizing
Prerequisites
NO TICE
● Before vacuumizing the cooling system, ensure that the refrigerant pipes have
passed the air tightness test and do not leak.
● Before vacuumizing the cooling system, ensure that all connectors are secured.
● System high pressure may occur if the cooling system is not vacuumized or is
not thoroughly vacuumized. Ensure that the cooling system is thoroughly
vacuumized before refrigerant is charged.
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 6 Power-On Commissioning
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 157