LMO14.113C2 Siemens Burner Control

Overview

The Siemens LMO14.113C2 is a microprocessor-based burner control unit designed for the startup, supervision, and control of forced draft oil burners in intermittent operation. Engineered for burners with a capacity of up to 30 kg/h, this controller ensures a safe and reliable combustion sequence by utilizing digital signal processing. It serves as a modern, compatible replacement for the legacy LOA series, featuring undervoltage detection and a multicolor LED for advanced fault diagnosis and operational status monitoring.

Features

• Microcontroller-based design ensures accurate and reproducible control sequences
• Integrated undervoltage detection prevents burner startup or initiates lockout if voltage drops below safe levels
• Multicolor LED indicator provides clear visual feedback for operational status and fault codes
• Electrical remote reset facility allows for convenient system restarts
• Bridging contact for oil preheater with integrated time monitoring
• Robust, heat-resistant plastic housing designed for plug-in mounting
• Designed for a service life of approximately 250,000 burner startup cycles

Specifications

• Model: LMO14.113C2
• Supply Voltage: AC 230 V (+10% / -15%), 50/60 Hz
• Burner Capacity: Up to 30 kg/h
• Pre-purge Time (t1): 15 seconds
• Safety Time (TSA): 10 seconds
• Pre-ignition Time (t3): 15 seconds
• Post-ignition Time (t3n): 3 seconds
• Power Consumption: 12 VA
• Protection Rating: IP40
• Operating Temperature: -20 C to +60 C
• Flame Supervision: QRB photoresistive detectors (yellow flame) or QRC blue-flame sensors

Applications

• Residential and commercial boiler systems using forced draft oil burners
• Small to medium capacity single-stage oil burner installations
• Supervision of both yellow-burning and blue-burning oil flames
• Suitable for use in intermittent operation environments where the burner restarts at least once every 24 hours
• OEM integration into new heating equipment or as a replacement unit for older LOA24.173A27 models