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New HFC blend offers hope for retail replacement

A new HFC blend from Honeywell is being touted as the closest thing to a multipurpose replacement gas, with the potential to  be used in a range of retail applications.

Genetron Performax LT is a blend of R32, R125 and R134a, which claims higher capacity than R407A at low temperatures, along with a claim to the lowest GWP of all commonly used blends.

The gas, which doesn’t yet have an ASHRAE clasiffication is non toxic and non flammable, and significantly has a comparable capacity to R22, so no adjustment of the expansion valve is required. The gas is thus also being seen as a viable replacement for R22 in medium and low temperature applications, requiring just a change of lubricant.

Performax claims 50 lower GWP than  R404A and around 15 per cent lower than R407A, making it a contender to be the retail refrigerant replacement of choice.

The gas is currently available in trial quantities from A-Gas, who says it will be selling bulk quantities from July. It is believed to be currently undergoing the acid test with supermarkets, by way of real-store trials.

A-Gas UK md Ken Logan said the wide capabilities of Perfomax were promising: “This brings it closer to the one replacement for more applications than anything else on the market, but with a significantly lower GWP.”

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