Solid stainless steel control knobs

Can be perfectly combined with other Vario 400 series appliances

For operation with 400 series AR400742 inline, AR401742 remote or AR413722 and AR410710 recirculation blowers.

Control knob with illuminated ring and output marking.

3 electronically controlled power levels.

Run-on function, 6 min.

The separate electronics housing is to be installed so that it is accessible.

When installing a ventilation hood with air extraction mode and a chimney-vented fireplace, the power supply line of the ventilation appliance needs a suitable safety switch.