Huawei NetCol8000-A045D - Installing the Water Cooling Module; Checking the Nitrogen Pressure

Figure 4-48 Securing the top of the outdoor unit
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4.6 Installing the Water Cooling Module
4.6.1 Checking the Nitrogen Pressure
Check whether any of the two needle valve bonnets is missing by turns.
● If they do not exist, contact Huawei technical support.
● If they exist, remove each valve bonnet and use it to press the valve plugs in
turn. If nitrogen is exhausted, the system is working properly. If no nitrogen is
exhausted, contact Huawei technical support.
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. 92