Frost protection display

Ventilation units with an internal preheating register keep the heat exchanger frost-free.

Under Ventilation/Ventilation settings you can see whether the preheating register is switched on or off (active/inactive).

Frost protection active: Frost protection equipment switched on. The outside air is warmed to avoid icing of the heat exchanger.

Frost protection inactive: Frost protection equipment switched off. No pre-heating of the outside air.