In stationary, more products are becoming available that work with CO2 refrigerant. For example, on Jan. 27, Emerson Climate Technologies announced it has received Underwriters Laboratories (UL) recognition for its new line of semi-hermetic compressors that utilizes CO2 as its refrigerant.
This new design is currently available in 12-, 15-, and 28-hp sizes, allowing it to be used in a variety of applications, such as grocery stores and supermarkets.