The Sitali CX 550 ducted HRV unit, dual-flow with heat recovery, can be installed vertically on the wall (with left or right configuration, for maximum flexibility). It has a maximum air flow rate of 520 m3/h and comes with a multifunction control panel, from which the unit's weekly schedule can be set, as well as ventilation speeds, and fault or filter replacement indicators can be displayed. Thanks to the built-in physical bypass, the Sitali CX 550 unit is ideal for "free cooling" operation during the summer season.