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September 13, 2023
Nitrogen and Torch Use
Nathan Orr and Roman Baugh teach a segment of the Kalos pipefitting class, focusing on the importance of purging and flowing nitrogen during the brazing process. They also focus on torch use. This video is the second in a short series about pipefitting practices for commercial HVAC/R.
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This tech tip was written by Don Gillis with Chemours. Thanks, Don! The shift to R-410A from R-22 brought some pretty big changes to the industry, including the shift to polyolester (POE) oil. We had been using mineral oil for CFC refrigerants like R-12 and HCFCs like R-22, so we had to update some of […]
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