Exhausting Nitrogen - Huawei NetCol8000-C190 User Manual

NetCol8000-C190 In-room Chilled Water Smart
Cooling Product
User Manual (2022, Singapore STT)
Figure 3-5 Needle valve and exhaust valve
(1) Heat exchanger
(3) Drainage valve
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Follow-up Procedure
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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.
Issue 02 (2022-03-30)
Take out the desiccant bags from the cabinet.
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
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(2) Exhaust valve
3 Installation
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