Siemens Burner automation controller LMO24.111C2

The Siemens LMO24.111C2 is a burner automation control box for 2-stage oil burners with intermittent operation. It operates on 230 V AC and suits burners with a maximum throughput of 30 kg/h. Its safety time is 10 s, pre-purge time is 16 s, pre-ignition time is 15 s, and waiting time is 5 s. A photoresistive flame detector is used for flame monitoring.

Controls of this type are selected by the exact series and type designation, supply voltage, required safety time and pre-purge time, and the flame detection method. The base or plug pattern must match the mounting arrangement, and controls of a given brand are normally not interchangeable across series. Before ordering, identify the part by its full type code and confirm it against the burner specification. When replacing, verify that the wiring diagram corresponds and that the flame detector type is compatible. Such controls are typically panel-mounted and wired to the burner terminal strip.