Description for Siemens LFL1-335

The LFL is a compact electro-mechanical primary flame safeguard control designed to provide burner sequencing, automatic ignition and continuous flame monitoring for gas, oil, and dual fuel, single burner applications. The LFL is applicable for on-off, multistage or modulating burners. The LFL is designed for direct main burner ignition, intermittent or interrupted pilot operation. The LFL integrates the flame amplifier, purge timer and sequencer in a single control. Flame supervision is accomplished using UV sensor or flame rod detection.Features:

Primary flame safeguard control Visual sequence indication Optional combustion air blower control Optional postpurge Preignition interlock Continuous flame monitoring, including extraneous light detection UV sensor functional test Proven air switch function Proven high fire purge interlock Proven low fire ignition interlock Direct main burner ignition, intermittent or interrupted pilot operation Integrated flame amplifier UV sensor or flame rod detector Lockout alarm terminal Local and optional remote reset Burner off - economy position (fully closed air damper interlock) Unit fuse and spare fuse provided