BACK DRAUGHT SHUTTER PAX CALIMA

The backdraft damper closes the duct and prevents cold air from flowing in when the fan is not running. Suitable for PAX Calima, Levante, and Sirocco fans. The backdraft damper prevents airflow in the wrong direction. It is assumed that the building’s basic ventilation is handled in some other way.

Note! The backdraft damper must not be used in a gravity-based ventilation duct (in the ceiling/chimney), as the natural air exchange must not be obstructed. The damper blocks the airflow in a naturally aspirated duct, which is detrimental to the structure and indoor air quality.

This product description is an automated translation of the original Finnish description.