Air conditioning unit with a bearing structure made of galvanized steel-sheet with internal thermal-acoustic insulation (class M1) and holes for ceiling/wall mounting. The FCU-E fancoil unit includes 3-speed asynchronous motors, silent plastic fans with low revolution, drain pan provided with condensation drain and highly efficient coil for 2-pipe system. The easy-to-remove air filter, made of a metal frame holding filtering section, ensures excellent filtration of the air introduced into the room and it can be regenerated by washing it with water and by using a vacuum cleaner. The appliance is also equipped with air supply grill with fixed fins, made of grey ABS and adjustable on 2 positions: air flow can be reversed rotating the grill by 180°. The FCU-E fancoil unit is provided with white cabinet made of galvanized steel-sheet finished by a scratch-proof film made of polyvinyl chloride. It is also supplied as standard with 3-way valve.