EvoControl Ventilation – Counter-flow

When an operating mode is selected in the ventilation unit, the extract air fan starts first. Depending on the outdoor temperature and the settings of parameters 410 and 411, the supply air fan has a start delay of at least 30 seconds.

The start-up may last longer than the set values:

• When control is waiting for signals from fans, it can take up to 10 minutes.

Check the “Measured values” menu and the “Extra operating mode” parameter for information.