Siemens LME21.350C1 control box

Siemens LME21.350C1 combustion control unit for monitoring 1- or 2-stage gas burners of small and medium power with intermittent operation. Waiting time 2.5 sec. Pre-purge time 30 sec. Safety time 3 sec. Post-ignition time 4 sec. Pre-ignition time 2 sec. Ignition interval 10 sec. Time from start to start of air pressure check 5 sec.