“R452A (Opteon®XP44) is a non-flammable, next-generation HFO-based refrigerant blend with a close performance match to R404A, including a similar low discharge temperature. This makes it ideal for both new and retrofit transport refrigeration applications in place of R404A. R452A is suitable in new equipment, as well as for retrofit of existing systems used as low-/medium temperature refrigerant in trucks, vans and containers, R454A offers comparable energy efficiency with improved environmental properties, but without increased compressor discharge temperatures. It is suitable as a retrofit replacement for R404A and R507 systems. R452A has a GWP on 2141 which is a 45 % reduction compared to 404A with a GWP on 3922.”
Source:http://www.aga.se/en/products_ren/refrigerants/hfo_gases/r452a/index.html, [01/19/18]