In the Air - HRAI Industry News
Cold and Hard Facts Refrigerants Q & A- Oct 26, 2023
Can existing equipment be retrofitted with a new lower GWP alternative provided the alternative has similar properties to the refrigerant being replaced, minimizing system modifications?
Such refrigerant retrofits are attractive for reducing environmental impact of systems with large refrigerant charge, such as centralized commercial refrigeration. Since existing systems using HFC refrigerants are not specifically designed to use flammable refrigerants, retrofit is limited to A1 alternatives. Retrofitting with A2L or A3 refrigerants is not permitted.
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