Oil Burner Sequence Controller

Product Overview

The Oil Burner Sequence Controller is the central safety and management unit for oil-fired combustion systems. It automates the entire firing sequence—from pre-purging the combustion chamber to ignition and continuous flame supervision. These controllers are engineered to manage single-stage, multi-stage, or modulating oil burners, ensuring that fuel is only released under safe, monitored conditions. They are widely used in industrial steam boilers, thermic fluid heaters, and hot air generators.

Technical Specifications

Feature: Technical Data

Supported Models: Siemens LAL, LMO, LOA / Riello RMO, RMG / Brahma OR

Operating Voltage: AC 220 V – 240 V

Fuel Type: Diesel / Light Oil / Heavy Fuel Oil (HFO)

Flame Supervision: QRB... / RAR... / Light-sensitive Photoresistors

Degree of Protection: IP40

Application: Industrial Boilers, Thermic Fluid Heaters, Furnaces

Key Features

Comprehensive Safety Logic: Executes a rigid timing sequence including pre-purge ($t_1$), pre-ignition ($t_3$), and safety time ($t_{TSA}$) to prevent explosions or fuel buildup.
Flame Monitoring: Utilizes high-sensitivity photo-resistive or selenium sensors to detect the flame instantly; cuts fuel supply in milliseconds if a flame failure occurs.
Actuator Integration: Manages air damper actuators to ensure the correct air-to-fuel ratio during low-fire and high-fire transitions.
Oil Pre-heater Control: Specifically designed to interface with oil pre-heaters, ensuring fuel reaches the required temperature/viscosity before the burner starts.
Diagnostic Indicators: Features either a mechanical sequence dial or a multicolor LED to indicate the operational status or specific fault codes for rapid troubleshooting.