With DuoC, the remote indicator for DuoComfort / DuoControl and DuoControl CS, you can see which gas cylinder is in operation from inside the vehicle. So you can say goodbye to surprises. The same applies to EisEx. It prevents the regulation system from freezing at low temperatures. All you need to do is activate winter operation on the control panel, and there you have it.
Operating status of gas cylinders (empty/full) displayed inside the vehicle
EisEx prevents icing in the regulation system at cold temperatures.