The Liebert® DCD active chilled-water cooling unit is a highly efficient heat exchanger module that mounts on the rear of an IT rack and provides up to 35kW of room-neutral cooling. The active fan module mounts on the DCD passive door and aids the server fans in properly removing the heat load from the high-density application. The DCD can be supplied by either the existing chilled water system or by a coolant distribution unit, such as the Liebert® DCP, providing flexibility during installation.