LGK16.122A17 Siemens Flame Safeguard

Overview

The Siemens LGK16.122A17 is a high-performance burner control designed for the supervision and sequencing of gas, oil, or dual-fuel forced draft burners of medium to high capacity. This flame safeguard is specifically engineered for continuous operation, utilizing a self-checking flame signal amplifier to ensure maximum safety. It is an ideal solution for industrial and commercial combustion plants, including flash-steam generators, where reliable and uninterrupted flame supervision is mandatory.

Features

• Self-checking flame signal amplifier triggers safety actions in the event of premature or missing flame signals or internal component faults
• Designed for continuous operation, suitable for burners running for more than 14 hours without interruption
• Integrated air pressure supervision for checked air damper control
• Compatible with ultraviolet (UV) flame detectors (QRA53/QRA55) or ionization probes
• Control sequence and connection circuitry are identical to the LFL1 series for easy integration and retrofitting
• Protection against simulated flame signals caused by faults in the detector, cables, or amplifier

Specifications

• Model: LGK16.122A17
• Supply Voltage: AC 100-110 V (50/60 Hz)
• Power Consumption: 3.5 VA
• Pre-purge Time (t1): 10 seconds
• Safety Time (TSA): 2 seconds
• Pre-ignition Time (t3): 4 seconds
• Post-purge Time: 10 seconds
• Operating Temperature: -20 C to +60 C
• Protection Rating: IP40 (when mounted)
• Weight: Approximately 1.0 kg (2.2 lbs)

Applications

• Supervision of multistage or modulating gas, oil, or dual-fuel forced draft burners
• Continuous operation industrial combustion plants and boiler sequencing systems
• Specifically designed for use with flash-steam generators
• Suitable for plants requiring compliance with safety regulations such as EN 298 or TRD 411/412
• Applications utilizing air heaters (WLE) where self-checking flame supervision is recommended