R-410A Alternative Receives A1 Designation From ASHRAE by CESadmin | Dec 6, 2019 | News | 0 comments Honeywell’’ s Solstice N41 has actually gotten the main classification of A1 for R-466A by ASHRAE. Read more: achrnews.com Submit a CommentYour email address will not be published. Required fields are marked *Comment * Name Email Website