Exhausting Nitrogen - Huawei NetCol8000-C070 User Manual

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
●

3.4.2 Exhausting Nitrogen

Prerequisites
● Before exhausting nitrogen, check whether the cooling system has good air
tightness. (Remove the bonnet from the needle valve and press the valve plug
to check whether there is a sound of air flow.)
● Open the exhaust valve of each heat exchanger to exhaust nitrogen onsite.
Context
Before connecting chilled water pipes, exhaust nitrogen used for avoiding injury.
Figure 3-12 Upflow exhaust valve
(1) Exhaust valve
Issue 07 (2021-12-30)
Check that thermal insulation foam is in close contact with the pipes, there is
no crack in each cutting position, and the chilled water valve is tightly
wrapped by thermal insulation foam.
NO TICE
D ANGER
Copyright © Huawei Technologies Co., Ltd.
3 Installation
45