Unit variants

EVN 22: For air extraction. Airstream-operated shutter. On/off with light switch or separate switch (both to be provided by the customer). Alternatively also with step switch → Circuit diagrams.

EVN 22 R: For air extraction or ventilation, speed controllable, with electric shutter. On/Off with light switch or separate switch (both on site), alternatively also combinable with speed controller, level switch or reversing switch.