Counter-current heat exchanger.

Temperature efficiency> 80%.

Completely tight without transfer between supply and exhaust air.

Energy-efficient DC / EC air supply and extract air fans.

Stepless fan speed control with forced function.

Supply air temperature control with setting on the panel.

By-pass function.

Built-in power and control center.

Preset airflow values. Can be adjusted as needed.

Normal speed: 30 l/s

Forced flow: 50 l/s