LGK16.622A17 Siemens Gas Control

Overview

The Siemens LGK16.622A17 is a high-performance burner control designed for the supervision and control of multi-stage or modulating gas, oil, or dual-fuel burners. Engineered for continuous operation, this unit features an integrated self-checking flame signal amplifier, ensuring a high level of safety and reliability in industrial and commercial combustion plants. It provides comprehensive burner sequencing and monitoring, including air pressure supervision to ensure correct air damper control throughout the startup and operation cycles.

Features

• Self-checking flame supervision circuit that detects faults in the detector, cables, or amplifier to prevent simulated flame signals
• Designed for continuous operation exceeding 24 hours, making it suitable for boiler sequencing and high-demand applications
• Compatible with QRA53 and QRA55 ultraviolet (UV) flame detectors or ionization electrodes
• Integrated air pressure supervision for checked air damper control
• Control program and connection circuitry compatible with LFL1… series, allowing for easy upgrades to self-checking systems
• Robust construction suitable for medium to high-capacity forced draft burners

Specifications

• Model: LGK16.622A17
• Supply Voltage: AC 100-110 V (50/60 Hz)
• Pre-purge Time (t1): 65 seconds
• Safety Time (TSA): 2 seconds
• Pre-ignition Time: 4 seconds
• Post-purge Time: 12 seconds
• Power Consumption: 3.5 VA
• Protection Rating: IP40 (when mounted)
• Weight: Approximately 0.81 kg to 1.0 kg (2.0 lbs)
• Operating Temperature: -20 C to +60 C

Applications

• Supervision of gas, oil, or dual-fuel forced draft burners in continuous operation
• Industrial and commercial steam boilers complying with TRD 411 and TRD 412 regulations
• Air heaters and high-capacity combustion plants requiring self-checking safety systems
• Multi-stage or modulating burner systems in HVAC and process heating environments