Product Overview
The Siemens LME39 series is a family of gas burner control units designed for reliable and secure startup, ignition supervision, and shutdown of gas (and gas/oil) burners operating in intermittent mode. These controls are intended for integration into heating, industrial combustion, and OEM systems. They ensure flame supervision using either ionization probes or UV flame detectors (with ancillary devices), and they comply with applicable safety standards (including EN 298).
Key Features
• Supervision of 1- or 2-stage burners – Supports both simple and staged combustion control sequences.
• Dual flame detection compatibility – Works with ionization probes or QRA UV flame detectors (with AGQ3… ancillary units) for reliable flame presence verification.
• Safety-oriented operation – Includes undervoltage detection, air pressure supervision with automatic checks, and limitation of restart attempts.
• Multicolor LED status indication – Provides clear messages about operational and fault states.
• Controlled intermittent operation – Allows controlled burner cycles even after extended continuous operation, enhancing safety and durability.
• Digital signal handling – Ensures precise control sequence execution and response.
• Remote reset capability – Facilitates electrical remote reset after lockout or fault condition.
Applications
The LME39 burner controls are suitable for:
• Commercial and industrial boilers – Automatic control of gas combustion in heating systems.
• Furnaces and process heaters – Reliable flame supervision for intermittent burner operation.
• OEM combustion systems – Integrated as core control units in gas-fired equipment by manufacturers.
• Forced draft or atmospheric burner installations – Supports a broad range of burner types and configurations.
Why Choose This Product
• High safety compliance: Designed and tested according to international burner control safety standards (e.g., EN 298), giving dependable protection in combustion applications.
• Flexibility: Supports 1- or 2-stage burner configurations and multiple flame detection technologies, making it adaptable across systems.
• Intuitive operation: Clear LED indicators and digital control sequences help reduce troubleshooting time and improve system visibility.
• Integrates with diagnostic tools: Interfaces (BCI or accessories) allow parameter adjustments and diagnostics when used with suitable Siemens tools or software.
• Trusted Siemens quality: Robust design and long-term performance backed by Siemens engineering and documentation.