EB1hCreate incentive program for supermarkets to replace direct expansion refrigerants with secondary loop or cascade systems.

Create an incentive program to replace conventional supermarket direct expansion systems, which use emission-heavy refrigerants with high global warming potential (GWP), with indirect systems such as secondary loop, transcritical CO2 , and/or cascade systems. As opposed to direct expansion systems, which circulate one refrigerant from the machinery room out to the store and back to the machinery room, indirect systems employ a primary and secondary refrigerant or heat-transfer fluid.