The mechanically controlled ventilation consists of those devices that circulate and renew the air inside of mistaking buildings with the outside. In practice, the internal air is expelled and is taken outside of the building and enter the environment air.
Obviously this air exchange can not take place without a heat recovery to avoid losing the degree of energy efficiency achieved from the building:
- The exhaust air gives its energy through a highly efficient heat exchanger
- The fresh air is filtered
- In the case of enthalpy heat recuperator: in addition to the transfer of heat also it transfers the right amount of moisture.
The ‘controlled mechanical ventilation system is characterized by a main unit that uses two fans, manages the exchange of air and at the same exchanges heat content.
The heat exchanger is the heart of the system and its goodness strongly impact on energy savings and durability; its features are:
- Air flow
- Exchanger type
- Type filters