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SIEMENS LFL1.622 burner control unit
Industrial boiler systems
Thermal oil systems
Steam and hot water boilers
Ovens and furnaces
Power plants
Food, chemical, pharmaceutical, and metal industries
SIEMENS LFL1.622 is a fully automatic burner control unit designed for medium to large capacity gas, oil, or dual-fuel burners. It ensures safe burner startup, flame detection, and system monitoring. Suitable for intermittent operation, compliant with EN 298, and compatible with ionization probes or UV flame detectors.
SpecificationValueModelLFL1.622Supply Voltage220 V AC, 50/60 HzPower Consumption3.5 VAPre-purge Time (t1)65 secondsSafety Time (TSA)2 secondsFlame DetectionIonization probe or UV cell (e.g., QRA2, QRA10, RAR9)Relay Outputs2 control relaysOperating Temp.-20 °C to +60 °CProtection ClassIP40MountingPanel or DIN railComplianceCE, EN 298