The units of the Energy series represent the maximum expression of technological innovation in the treatment of primary air.? The Energy series has been specifically designed to minimize energy consumption in operation, which represents about 80% of the entire Life Cycle Cost of an air treatment machine. The double heat recovery system (static and active) and the innovative adiabatic cooling and humidification system allow the air to be brought into the desired conditions of introduction into the environment with minimum energy expenditure. The presence of a damper for the total by-pass allows free cooling to be carried out in the intermediate seasons, making the most of the free external thermal inputs. The Energy series is built in full compliance with the EN1886 standard with regard to mechanical strength, air flow, thermal and acoustic insulation of the envelope.