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Siemens LGB Control Unit. LGB21.130A27, LGB21.230A27, LGB21.330A27, LGB21.350A17, LGB21.350A27, LGB21.550A27. LGB22.130A27, LGB22.230B27, LGB22.330A17, LGB22.330A27, LGB22.330A270. LGB32.330A27, LGB32.350A27. LGB41.255A27, LGB41.258A17, LGB41.258A27.

Siemens LGB Gas Burner Control System

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The Siemens LGB burner control system is for supervision, start-up, and control of single or 2-stage gas burners. The LGB is also used for small to medium capacity gas / oil burners with or without intermittent fan operation. Here you will find the different configurations of the Siemens LGB base control unit.

  • Siemens LGB Burner Control Technical Specifications
  • Flame supervision either through ionization probe, blue-flame detector QRC1 for forced draft gas / oil burners, or a UV QRA detector with AGQ1.xA27 auxiliary unit.
  • LGB can functionally replace the LFI7 and LFM1 with adapter sold separately.
  • Available in several configurations

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