Carrier service manual R410a DC Inverter 60Hz
Installation 127
3. Making Nitrogen-Charging Pipe Joint
When welding the pipe joint, connect the nitrogen-charging joint to the pipe fittings to be welded.
The nitrogen-charging joint is shown below:
4. Cautions for Welding Pipe Fittings
1) Adopt transition pipe.
2) Charge nitrogen from the side of the short pipe, because short distance may result in perfectible
nitrogen replacement effect.
nitrogen
brazing welding part
assistant pipe assemblycopper pipe direct connection
brazing welding part
copper pipe elbows
assistant pipe assembly
nitrogen
5. Standard operation of Brazing Welding
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