JREF CW is the new range of chilled water CRAC units for technical/industrial facilities requiring a reduced footprint but with unchanged delivered cooling capacity . In-depth CFD (computational fluid dynamics) analysis has allowed for the meticulous design of every last constructive detail to minimise air pressure drops and, therefore, fan power consumption. The broader air through-flow sections make installation and maintenance tasks easier, thanks to the greater availability of interior space. On upflow and downflow versions. the air filter is parallel to the coil and has the same surface area: this considerably reduces pressure drops in the air flowing through and, therefore, fan power absorption. Generous sizing of the electrical panel makes it easier and, therefore faster, to act on the on-board electronics. Housing the water pipes and electrical wiring in the cavity of the load-bearing frame increases the available internal space and considerably simplifies installation and maintenance tasks, all of which can be carried out from the machine front. The smaller footprint allows for more effective use of the available server room space. high IT power density (61 W/m2) also meets requirements for applications which are more critical in terms of the heat loads to be dispersed.