21% lower hold-up volume enables significant reduction in refrigerant charge. The C118L-EZ and the C118L-EZ-F are evaporators optimized for high density refrigerants like the R410A and its replacement R454B and R32 for use in high-e€ciency chillers with capacities of 70-250 kW. The Z-pattern channel plate technology pushes the performance of heat exchangers to the limits by fully mixing the liquid and gas refrigerant through a “zigzag” flow, which increases the heat transfer coefficient. At the same time, inheriting from the dimple features, C118L-EZ reduces the water side pressure drop and the amount of material used. In the reversible mode of the chiller as a condenser, C118L-EZ also has outstanding performance. To meet demands for higher seasonal efficiency, the C118L-EZ is designed to work efficiently and increase comfort in modern buildings without increasing the carbon footprint.