The HVAC industry has gone through refrigerant transitions before. Some may remember the move from R-11 to R-123, R-12 to R-134a, or, more recently, R-22 to R-410A. These progressions largely occurred ...
History, they say, repeats itself. The HVACR industry is not immune to the truth of this saying. A good case in point was the introduction of R-410A earlier this century, compared to the introduction ...
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