Midco International 842519 Blower Air Switch 320819-301 Blue) engineered specifically for the

Blue) engineered specifically for the demands of high-pressure HVACR service

It operates on a 208-230V single-phase power supply and is optimized for use with R-404A and R-22 refrigerants

System Protection: Constantly monitors high-limit switches and gas valve signals to prevent overheating and hazardous operation

Technicians should note that while this valve handles flame modulation

it maintains system efficiency in large-scale commercial and industrial boiler circuits

Midco International 842519 Blower Air Switch 320819-301 Blue) engineered specifically for theThe Midco International 842519 Blower Air Switch is a critical OEM replacement part designed for precise pressure sensing and airflow verification in industrial heating and ventilation equipment. As a differential air pressure switch, this component ensures the blower assembly is moving sufficient combustion air before allowing the system to proceed through the ignition sequence. This Midco 842519 blower switch is factory calibrated to maintain exact