Below is a guideline of key differences between currant R410A, new R32 and in development R466A refrigerants.
F-Gas 2014 HFC Bans
The rules for purchase of new equipment depend on the type and size of equipment. There are two bans on the use of HFCs in new stationary air-conditioning and heat pump systems:
There are NO HFC bans that apply to larger air-conditioning systems (including chillers and larger split systems) or to heating only heat pumps.