PRODUCT DESCRIPTION
SIEMENS LMO24.111C2 - Burner Control Unit
The SIEMENS LMO24.111C2 is a compact, microprocessor-based burner control unit engineered for the automated supervision and control of forced draft gas burners operating in intermittent mode. This device manages the ignition sequence, flame supervision via ionization probe or UV sensor, and safety shutdown procedures, ensuring compliant operation in industrial heating systems, boilers, and process furnaces. It integrates critical safety times and operational logic for reliable burner management.
Technical Specifications:
- SERIES/FAMILY: LMO Series Burner Controls
- COMPONENT TYPE: Automatic Burner Control Unit
- ELECTRICAL SPECS:
- NOMINAL VOLTAGE: 230 VAC
- VOLTAGE TOLERANCE: -15% / +10%
- FREQUENCY: 50/60 Hz
- INTERFACE/CONTROL:
- FLAME SUPERVISION: Ionization probe or UV flame sensor (e.g., QRA2, QRA4, QRA10)
- SAFETY TIME (t2): 3 seconds
- PRE-PURGE TIME (t1): Configured by variant, typically 30 seconds for .111
- OUTPUTS: Relay outputs for ignition transformer, fuel valves, fan motor, and fault indication
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP40 (when mounted in a control panel)
- OPERATING TEMPERATURE: -20 to +60 degrees C
- MOUNTING STYLE: Plug-in type, typically on AGK11 base
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION: Forced draft gas burners, intermittent operation, industrial heating systems, boilers, process furnaces, air heaters.