Z-design technology can help water chiller and heat pump manufacturers improve the environmental efficiency of their equipment. The Z-pattern channel-plate technology enhances performance of the heat exchanger by fully mixing liquid and gas refrigeration through a zigzag flow. The Z-design range includes custom-size heat exchangers with capacities from 90 to 400 kW with R-410A. Though optimized for R-410A, they are compatible with refrigerants for commercial refrigeration like R-134a, R-448A, R-449A, R-452A and R-290. Benefits of the Z-pattern design include optimized heat transfer and a reduced loss of charge for the water circuit, which contribute to higher energy efficiency and lower energy consumption and refrigerant charge.