Huawei NetCol8000-A045D - Page 127

(4) High pressure gauge (5) Low-pressure needle
valve
(6) Exhaust pipe needle valve
Figure 4-80 NetCol8000-A060/A120 charging nitrogen to pipes without
conguring low-temperature component (downow)
(1) Nitrogen cylinder (2) Reducing valve (3) Low pressure gauge
(4) High pressure gauge (5) Low-pressure needle
valve
(6) Exhaust pipe needle valve
Figure 4-81 NetCol8000-A060 charging nitrogen to pipes without conguring
low-temperature component (upow)
(1) Nitrogen cylinder
(2) Reducing valve (3) Low pressure gauge
(4) High pressure gauge (5) Low-pressure needle
valve
(6) Exhaust pipe needle valve
● If a low-temperature component is installed on the outdoor side, connect
pipes as shown in Figure 4-82, Figure 4-83, Figure 4-84, or Figure 4-85, and
charge nitrogen into the system from the low-pressure, exhaust pipe, and
liquid pipe needle valves simultaneously.
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 4 System Installation
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 117