Digital automatic oil burner control for forced-air oil burners up to 30 kg/h in intermittent operation, 2-stage operation, for flame sensor MZ 770 S, IRD 1010, UVD 970. Special feature: In the event of flame failure during operation, repeats max. 4 times, as well as longer pre-purge, pre-ignition and post-ignition time and longer delay of the 2nd stage. Compatible with MMD 900.1, but operation with QRC 1 is not permitted!!!