Thermax Boiler Sequence Controller LAL 3.25
Thermax Boiler Sequence Controller LAL 3.25
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Product Overview
Product Overview
The Siemens LAL 3.25 is a microprocessor-compatible burner control unit designed for the startup and supervision of medium to large capacity oil burners. Specifically utilized in Thermax boiler systems, it manages the complex interaction between the fan, fuel valves, and air damper actuators. It is engineered for intermittent operation, featuring a safety time ($t_{TSA}$) of 5 seconds and a pre-purge time ($t_1$) of 22.5 seconds.
Technical Specifications
Technical Specifications
Feature: Technical Data
Product Model: Siemens LAL 3.25
Operating Voltage: AC 220 V – 240 V
Frequency: 50...60 Hz
Pre-purge Time ($t_1$): 22.5 Seconds
Safety Time ($t_{TSA}$): 5 Seconds
Pre-ignition Time ($t_3$): 4 Seconds
Degree of Protection: IP40
Application: Medium to Large Capacity Oil Burners (Thermax Boilers)
Key Features
Key Features
Modulating Control: Fully supports air damper actuator integration for precise air-to-fuel ratio management across all firing rates.
Rapid Pre-purge: Features a 22.5-second pre-purge cycle, optimized for systems requiring faster startup without compromising safety.
Flame Supervision: Designed for use with QRB... photo-resistive detectors or RAR... selenium photocell detectors for robust oil flame monitoring.
Sequence Indicator: Includes a visual diagnostic dial that stops at the fault position, simplifying troubleshooting in industrial boiler rooms.
Heavy-Duty Construction: Built to withstand the high-temperature and high-vibration environments typical of large-scale steam and hot water boilers.
More In Category
Shop the Siemens LAL 3.25 Sequence Controller for Thermax boilers and large-scale oil burners. Reliable supplier of genuine Siemens LAL series parts with ready stock and fast Pan-India shipping. Contact us for competitive pricing today.
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