Landis & Gyr - LFL1.322 - Gas Burner Control Unit

The Landis & Gyr LFL1.322 is a gas burner control unit designed for the automatic startup, supervision, and control of forced draft burners in stationary air heaters. It is suitable for gas, oil, or dual-fuel forced draft burners of medium to high capacity, supporting multistage or modulating operations. The unit ensures safe and efficient burner management by controlling the sequence of operations, including pre-purge, ignition, and flame monitoring.  

Key Features:

• Automatic Burner Control: Manages the startup sequence, flame supervision, and controlled shutdowns for enhanced safety and efficiency.

• Adjustable Pre-Purge Time: Features a pre-purge time of 36 seconds, ensuring proper ventilation before ignition.

• Safety Time (TSA): Incorporates a safety time of 2 seconds to promptly detect and respond to ignition failures.

• Flame Supervision: Compatible with UV detectors (QRA series) and ionization probes for reliable flame monitoring.

• Checked Air Damper Control: Provides fully automatic control of the air damper, compatible with actuators of any running time.

Technical Specifications:

• Model Number: LFL1.322

• Mains Voltage: AC 230 V

• Mains Frequency: 50 Hz or 60 Hz

• Pre-Purge Time (t1): 36 seconds

• Safety Time (TSA): 2 seconds

• Post-Purge Time (t9): 2 seconds

• Degree of Protection: IP40

• Mounting Orientation: Optional

• Ambient Temperature Range: –20 °C to +60 °C

• Weight: Approximately 1.85 kg

Applications:

• Stationary Air Heaters: Ensures safe and efficient operation of forced draft burners in air heating systems.

• Industrial Burners: Suitable for medium to high capacity gas, oil, or dual-fuel burners requiring precise control and supervision.

• Multistage or Modulating Burners: Ideal for burners operating in multistage or modulating modes in intermittent operation.