Huawei NetCol8000-A045D User Manual page 127

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

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