Vacuumizing - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Refrigera
nt Charge
Amount
Charge
amount
(kg) =
Standard
charge
amount +
Extra
charge
amount
Charge
amount
(kg) =
Standard
charge
amount +
Extra
charge
amount

6.1.2 Vacuumizing

Prerequisites
● 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.
Issue 08 (2021-09-17)
Length
of the
One-
Way
Connecti
on Pipe
Between
the
Indoor
and
Outdoor
Units (L)
10 m < L
≤ 60 m
60 m < L
≤ 100 m
NO TE
When the outdoor unit is NetCol500-A120, two indoor units can be connected.
NO TICE
Copyright © Huawei Technologies Co., Ltd.
NetCol500- NetCol500-
A060 A060 with
(NetCol500- a Low
A120) Temperatur
e
Component
9.2 + (L – 10) 20.2 + (L –
x 0.19 10) x 0.19
9.2 + (L – 10) 20.2 + (L –
x 0.25 10) x 0.25
6 Power-On Commissioning
NetCo NetCol500-
l500- W055
A080
13.2 + 10 + (L – 10)
(L – × 0.21
10) ×
0.19
13.2 + 10 + (L – 10)
(L – × 0.28
10) ×
0.25
122