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Thread: Oxygen/refrigerant mixture?
12-24-2012, 06:20 PM #1
While reading books on hvac I always read don't mix refrigerant or oil with oxygen or compressed air. They also always say not to leak test a system with oxygen or compressed air. Why exactly does that need to be stated? Is it something that people used to do or still do? Or are people just worried someone will run out of nitrogen and use the oxygen from the oxyacetylene torch? At first it was funny but now I'm curious