The line of DSH scroll compressors from Danfoss has been qualified for use with R454B and R452B refrigerants, providing OEMs an alternative to R410A. The option to use lower-GWP refrigerants was prompted by the European Union’s ongoing phase-down of high GWP refrigerants, limiting availability and increasing the price of R410A.

The Danfoss scroll compressors use intermediate discharge valve (IDV) technology to enhance seasonal part-load cooling efficiency. The compressors’ multi-refrigerant compatibility is intended to ease the refrigerant transition for OEMs.

R454B and R452B refrigerants are classified as A2L (mildly flammable) and are regulated under EN378 and IEC60335-2-40.