The new heat recovery units are distinguished by twin heat recovery system for transferring the energy otherwise lost when extracting air from the room: the first system, static type, by aluminum plated crossflow heat recovery, the second system (in sequence to the previous one) by electric driven airto- air heat pump device. Therefore, by a single independent system and at the same time, it can match the needing of ventilation while ensuring room comfort, the outside air thermal loads and energy saving, due to the very high unit efficiency, both on winter and summer time. These air handling units thus represent the ideal solution for satisfying temperature, humidity, comfort and fresh air requirements in air-conditioning systems operating in civil, industrial and service environments.
