R410A is a blend of non-ozone depleting HFC refrigerants (R32 and R125). New equipment has been designed specifically to take advantage of its properties such as higher cooling capacity and negligible temperature glide. It has become increasingly popular in many air conditioning and heat pump systems and in many applications is now preferred to R407C. R410A equipment is usually more energy efficient.
Engineers should ensure they are equipped with the correctly rated gauges for R410A. Although R410A is sometimes referred to as an azeotrope, we recommend that it should always be removed from the cylinder as a liquid when charging a system. R410A is not compatible with mineral oil, and equipment manufacturers recommend the use of a Polyol Ester (POE) oil - see our Lubricants section for further information. R410A should not be used to retrofit existing R22 systems as they are not designed for the higher operating pressures of R410A.