Switching contact function

Multi-function contact MFC: One of the following, external components can be switched with the potential-free switching contact of the main circuit board (max. 5 A).

Setting values
● Alarm
● Filter change
● Operating display
● Supplementary heating*
● Pre-heating *
● Shutter

* ATTENTION with supplementary heating or pre-heating: Incorrect installation will result in unit damage. If external supplementary heating or external pre-heating is selected, the power supply for the component should be switched via an external relay.