Siemens LFL1.122 control box

Electromechanical burner control Siemens LFL1.122 is used for start-up and monitoring of multi-stage or modulating gas, oil or combined forced-draft burners of medium and high power with intermittent operation. Flame monitoring is performed by an ionization electrode or a QRA flame detector. Main characteristics: Supply voltage: AC 230 V. Pre-purge time: 10s. Safety time: 2s. Safety time or first safety time when operating with a pilot burner: 2s. Time to ignition: 4s. Interval between voltage application to terminals: 6s. Interval between start of TSA and valve de-energization at terminal: 6s. Interval between voltage application to terminals: 4s. Post-purge time: 10s. Interval between start command and voltage application to terminal: 2s. Start-up sequence duration: 30s. Second safety time for burners with pilot burner: 2s.