The Carrier-designed Evergreen™ family of water cooled chillers that enables chiller plants to achieve superior efficiency at true operating conditions without compromising the environment. Carrier Evergreen chillers have the lowest published leak rate in the industry and the ability to store the entire charge of refrigerant inside the chiller minimizes the chance of leaks during refrigerant transfer. With environmentally sound refrigerant, superior efficiency and powerful controls, these units are ideal for both new construction and replacement projects.