Huawei NetCol8000-A045D User Manual page 116

NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual
Figure 4-65 NetCol8000-A060 side pipe routing (upflow)
(1) Gas pipe
● Exercise caution during welding. It is recommended that you use metal plates
to isolate the welding source from devices in the cabinet to avoid burning the
devices, such as rubber rings and thermal insulation foam.
● Use a rubber hose to connect the nitrogen cylinder which connecting the
reducing valve and the end of the copper pipe, then fill nitrogen at 0.03–0.05
MPa into the copper pipe to avoid internal oxidation, as shown in
● When welding a gas pipe, gently inject nitrogen into the pipe through the
exhaust pipe needle valve.
● When welding a liquid pipe, gently inject nitrogen into the pipe through the
liquid pipe needle valve.
Step 2 Cut a cross in the rubber ring using a utility knife and route the pipe wrapped with
the thermal insulation foam through the hole.
Issue 05 (2020-10-10)
NO TICE
Copyright © Huawei Technologies Co., Ltd.
4 System Installation
(2) Liquid pipe
Figure 4-61.
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