R404A is a blend of non-ozone depleting HFC refrigerants (R125, R143a and R134a). It has similar properties and characteristics to R502 and is used in both medium and low temperature applications. It is widely used for commercial refrigeration applications, including display cabinets, cold rooms and ice machines, as well as transport refrigeration and industrial refrigeration. As R404A is a blend, it should always be removed from the system as liquid when charging the system.
R404A is not compatible with mineral oil, and equipment manufacturers recommend Polyol Ester (POE) oils, see more in our Lubricants section. R404A may also be used to retrofit certain existing systems, however it is rarely the first choice as multiple oil changes to a POE is required.
APPLICATIONS: Commercial and industrial cooling / Refrigerated transport
ASHRAE CLASS: A1
OIL REQUIRED: POE