LGB22.330A17 Siemens Burner Control

Overview

The Siemens LGB22.330A17 is a compact, plug-in burner control designed for the startup and supervision of one- or two-stage gas or gas/oil burners. Engineered for intermittent operation, this control unit manages the complete burner sequence, including prepurging and air pressure monitoring. It is primarily used in small to medium capacity heating systems, providing a reliable safety solution for industrial and commercial burner applications.

Features

• Automatic sequence control for one- or two-stage forced draft burners
• Intermittent operation requires at least one controlled shutdown every 24 hours
• Integrated undervoltage detection to prevent burner startup during low power conditions
• Air pressure supervision with a functional check of the air pressure switch during startup
• Support for multiple flame supervision methods including ionization probes and UV detectors
• Impact-proof, heat-resistant, and flame-retarding plastic housing
• Electrical remote reset facility for convenient troubleshooting

Specifications

• Model: LGB22.330A17
• Supply Voltage: AC 100 to 110 V (50/60 Hz)
• Prepurge Time (t1): 30 seconds
• Ignition Safety Time (TSA): 3 seconds
• Power Consumption: 3 VA
• Protection Rating: IP40
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 0.5 lbs (0.23 kg)
• Compliance: EN 298 and EN 676 standards

Applications

• Supervision of small to medium capacity burners up to approximately 350 kW
• Direct-fired air heaters and stationary air heating systems
• Control of one-stage or two-stage gas or gas/oil forced draft burners
• Replacement unit for predecessor models like LFI7 and LFM1 with appropriate adapters
• Integration into OEM burner systems for residential and commercial HVAC units