Reversible flow heat-recovery unit complete with ceramic-type heat exchanger. Swing front panel to avoid undesired air return when the product is switched off. Highly silent model. Condensate drain not required. DC motor on ball bearings with reduced consumption and long-term reliability. Separate double filters at air inlet and outlet. Duct variable in length from 250 to 500 mm. Maximum allowable length 3 mt. (2,5 mt. if a 90° bend is present). Visual indicators for commands reception and filters cleaning. Operating mode adjustable by remote control. Buzzer indicator for commands reception. Technical datasheet