Roof-Top autonomous air-condensed conditioner with structure in powder-painted galvanised sheet metal and 50 mm panels insulated with polyurethane. MB3 configuration with mixing chamber with three dampers, intake fan and heat recovery on the expelled air. Cooling circuit with scroll compressor with high yield and low electricity absorption, standard Cu-Al thermal heat exchange coils (pre-painted Cu-Al available as optional) or Cu-Cu Sn. Standard or high-head fans on ambient side, plug fans with permanent magnets motor and differential pressure switch. Axial fans (outer side) with pressostatic rpm control device or EC motor. Flat G4 filters as standard on the outdoor air flow and intake. F7 or F9 pocket filters available upon request, but on delivery only. Electronic condensation and evaporation control as standard, for further extending the operating limits of the unit.