Pipe
Pipe support
Wall
9
Discharging Nitrogen
7.2
Separately exhaust nitrogen from the three needle valves. Separately exhaust nitrogen from
the two needle valves for the water-cooled module. When exhausting nitrogen, do not
remove the valve plug in case of losing or damaging it.
Liquid pipe
needle
valve
Low-
pressure
needle
valve
Discharge
pipe needle
valve
Take protective measures, such as spreading a piece of wet cloth, around the welding position,
to avoid burning the bottom panel, top panel, side panel, internal components, needle valves,
other pipes, thermal insulation foam, power cables, labels, and tags.
Welding the Indoor Unit Ports
7.3
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