PRINCIPLE OF ROTOR

Östberg rotary heat exchangers are classified as regenerative air-to-air energy recovery units.
Air-to-air energy exchangers can recycle more than 85% of the energy from conditioned building exhaust, or high temperature exhaust from industrial processes. Exhaust recovery ventilation utilizes energy from the exhaust air stream to precondition the outside air being introduced into the building. In the winter it provides free heating and in the summerfree cooling.
Applying air-to-air energy recovery can help achieve a higher LEED® status, meet the requirements of ASHRAE 90.1, and save significantly on operating cost with a quick payback. Choose from stand-alone heat exchanges or pre-engineered, yet customizable modular units that incorporate heat
recovery, humidity control, and other air treatment options. Thanks to the alternating airflow direction, the rotor is self-cleaning and frost proof to a large extent.