LFL1.122-110V Siemens Gas Burner Control

Overview

The Siemens LFL1.122-110V is a high-performance burner sequence controller designed for the supervision and control of gas, oil, or dual-fuel forced draft burners. Built for medium to high capacity applications, this unit ensures safe burner operation through a managed startup and shutdown sequence. It is specifically engineered for intermittent operation, requiring at least one controlled shutdown every 24 hours to perform necessary internal safety tests.

Features

• Comprehensive control of burner sequences for multistage or modulating burners
• Integrated flame supervision using UV detectors (QRA series) or ionization probes
• Checked air damper control to ensure proper combustion airflow
• North American approvals including UL, FM, and CSA
• Internal self-checking mechanism for safety-critical circuits
• Robust design suitable for industrial and commercial burner systems

Specifications

• Model: LFL1.122-110V
• Supply Voltage: AC 110 V (+10% / -15%)
• Frequency: 50/60 Hz
• Pre-purge Time: 8 seconds
• Safety Time: 2 seconds
• Power Consumption: Approximately 3.5 VA
• Protection Rating: IP40
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 1.0 kg (2.2 lbs)

Applications

• Control and supervision of forced draft burners with direct spark ignition or pilot burners
• Industrial and commercial gas, oil, and dual-fuel burner systems
• Use with stationary air heaters (WLE) and flash-steam generators
• Integration into burner control panels requiring high-capacity sequencing and safety shut-off