Off

Ventilation level 0 switches the ventilation unit to the standby mode (both fans off). Off appears on the display, all LEDs on the single control unit are off. The switch-off function (ventilation level 0) of all single control units (RLS 1 WR) can be completely deactivated, e.g. to protect the ventilation unit from incorrect settings by unauthorised persons. The ventilation unit is running at least in level I with humidity protection ventilation.