Siemens Burner control LME44.056C2

This control box is an electromechanical burner control designed for starting and monitoring single- or two-stage gas burners with intermittent operation. It supports flame detection by ionization, UV, or IR methods. The unit manages the ignition sequence and enforces programmed safety times, including pre-purge, fuel admission, ignition, and flame proving. If no flame is detected within the safety time, it locks out the burner. It reads signals from pressure switches and the flame detector, and drives the ignition transformer, fuel valve, and fan.

Parts of this type are selected by matching the exact series and type designation, supply voltage, required safety and pre-purge times, and flame detection method. The base or plug pattern must also match. Controls of this class are normally not interchangeable across different series, even within the same brand. Before fitting, compare the full manufacturer code with the existing unit’s marking and confirm that the safety time settings are correct for the application.