Structure and front panel in steel sheet, thickness 10/10, painted with white polyester powder (RAL 9016) in a smooth finish. Hooks for wall installation included in the standard equipment. Suction and delivery ports with a nominal diameter of 125 mm. Pair of electric fans driven by EC (brushless) motors of the external rotor type, with shafts mounted on ball bearings to ensure virtually “maintenance free” operation, directly coupled to forward curved centrifugal impellers. 3 operating speeds, independently set at the time of installation. High efficiency heat exchanger, countercurrent cross flow type, made of plastic resin (PS). Thermodynamic by-pass with automatic activation, to guarantee the comfort of the occupants of the rooms enslaved in mid-seasons, or in any case when the outside temperature does not require the action of the heat exchanger. Remote control unit, of the wired connection type, with LCD display, for: switching the product on and off. The initial configuration of the product. The choice of operating speed. Operation programming. Display of the time and room temperature. The monitoring of the correct functioning of the product (possible malfunctions are highlighted through error messages shown on the display). The signaling on the display of the condition of saturated filters. Pair of ISO Coarse 30% (G3) filters (M5 filter available as an option for the delivery duct), easily accessible for periodic maintenance. Automatically activated anti-freeze protection, to prevent the formation of frost at the heat exchanger. Condensate collection tray with drain devices. Predisposition for connection to a pre-heater.