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Podcast: HVAC School - For Techs, By Techs
Episode: Flow Nitrogen Great Again
Description: In this episode of the HVAC School Podcast, Bryan talks with Tim Bagnall about flowing nitrogen. Many techs don't flow nitrogen. Some may say that it is overkill, but it has been shown that flowing nitrogen displaces oxygen while brazing and prevents harmful scale from forming on the copper. Scale is very problematic, and it will likely ruin your copper lines if you keep those lines open to air. (The jury is still out as to whether climate/geography affect scale formation, though.) There are many different intensities for flowing nitrogen, particularly high-pressure purging and lo...