The four refrigerants R448A, R449A, R450A and R513A have been added to Emerson’s important 93-11 document – the document which lists all refrigerants and lubricants approved by Emerson for its Copeland compressors.
R449A is a replacement for R404A and R507A. It is a blend of R32 (24.3%), R125 (24.7%), R1234yf (25.3%) and R134a (25.7%) with a GWP of 1397. It is non-flammable and non-toxic with an A1 safety classification.
R448A is Honeywell’s non-flammable, non-toxic AI refrigerant to replace R404A, sold under the trade name Solstice N40. It uses the same components as DuPont’s R449A with the addition of a small amount of R1234ze(E). Its composition is R-32 (26%), R125 (26%), R1234yf (20%), R134a (21%) and 1234ze(E) (7%). GWP is around 1273.
Honeywell’s R450A (N13) and DuPont’s R513A (XP10) are replacements for R134a.
R513A is a binary mixture of R134a (44%) and R1234yf (56%). It has a GWP of around 630 and carries the ASHRAE safety classification of A1.
A blend of 42% R134a and 58% HFO1234ze(E), R450A is non-flammable, has a zero ODP and a GWP of about 601.
The 93-11 document can be downloaded here.