Question about Haier Heating & Cooling
Brazing refrigerant lines that are copper to copper should be done by first sizing the tubing. For example if you are brazing 1/2" to 1/2" lines together you need to swag (expand) one end with a swagging tool. This will allow them to fit together tight.
Once the joints are sized they must be cleaned, be sure to use refrigeration sanding cloth so there are no oils or contaminates.
If you are brazing copper to copper use 15% silver solder (silfos stick) and no flux. If you run into a joint that is steel to copper use 45% silver solder and flux.
Let me know if you have more questions.
Posted on May 31, 2010
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Posted on Jan 02, 2017
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