Siemens SQM33.550A9 Burner Control, 1-Phase AC Actuator, Gas/Oil, Intermittent, 30s Pre-purge, AC 230V

Siemens SQM33.550A9 Burner Control

The Siemens SQM33.550A9 is an advanced burner control unit meticulously engineered for the reliable management of intermittent forced draft gas and oil burners. This controller is specifically designed to operate single-phase AC motor-driven air damper actuators, ensuring precise and efficient air-fuel mixture control for optimal combustion performance and safety. It features a fixed pre-purge time of 30 seconds, crucial for clearing residual gases before ignition, enhancing operational safety and efficiency.

Key Features:

• 1-Phase AC Motor Actuator Control: Optimized for direct control of 1-phase AC motor-driven air damper actuators, common in medium-sized commercial and industrial burner systems.
• Versatile Fuel Application: Suitable for use with both gas and light oil burners, offering flexibility across different fuel types.
• Intermittent Operation: Ideal for burners that operate with periodic on/off cycles, ensuring efficient and safe restarts.
• Fixed 30s Pre-Purge Time: Ensures a mandatory 30-second ventilation period before ignition, purging the combustion chamber of unburnt fuel gases to prevent hazardous situations.
• Comprehensive Burner Management: Provides full control over the burner's startup, operation, and shutdown sequences, including flame supervision.
• High Reliability & Safety: Built to Siemens' rigorous quality standards, integrating critical safety interlocks and monitoring functions to safeguard against fault conditions and ensure safe operation.
• Supply Voltage: Operates on an AC 230V power supply.

Manufacturer Information:

• Manufacturer: Siemens
• Product Series: SQM33 Series Burner Controls
• Application: Control of forced draft intermittent gas and oil burners, with specific management of 1-phase AC motor-driven air damper actuators and a fixed pre-purge duration.
• Typical Use: Commercial and industrial heating systems, boilers, and furnaces where reliable burner control, precise air-fuel management, and pre-purge safety are paramount.