Thermax Boiler Sequence Controllers are high-performance burner control units engineered for the startup, supervision, and control of medium to large-capacity oil and gas burners. These controllers are the "brain" of the boiler, managing the complex timing of fans, fuel valves, and air damper actuators. Most Thermax systems utilize the Siemens LAL (for oil) or LFL (for gas/dual fuel) series to ensure maximum safety and combustion efficiency in industrial steam and hot water plants.
Feature: Technical Data
Supported Models: Siemens LAL 2.25, LAL 2.65, LAL 3.25, LFL 1.333
Operating Voltage: AC 220 V – 240 V
Frequency: 50...60 Hz
Control Type: Multi-stage / Modulating
Degree of Protection: IP40
Application: Industrial Steam Boilers, Thermic Fluid Heaters, Hot Water Generators
Industrial Reliability: Heavy-duty construction designed to withstand the high-vibration and high-temperature environments of boiler rooms.
Precise Sequence Timing: Manages critical phases including pre-purge, pre-ignition, and safety shut-off with micro-second accuracy.
Actuator Integration: Controls air damper actuators to maintain the perfect air-to-fuel ratio across all firing rates (Low/High/Modulating).
Visual Fault Diagnostics: Features a sequence indicator dial that stops at the exact point of failure, allowing for rapid troubleshooting.
Flame Safety Monitoring: Compatible with high-sensitivity UV detectors (QRA...) and photo-resistive sensors (QRB...) for fail-safe flame supervision.
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