The 1980s, Montreal Protocol was focused on Ozone Depletion. It seems, we have come full circle and are in the middle of the next refrigerant transition. This time, the change is not clear cut, what's in/out and what's coming? Market is demanding increasing in efficiency— will the new fluids help or hinder? They also present new challenges for unit and system capabilities along with concerns on safety and flammability.
Thomas Gorman, Trane