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What is the ID and cross-section measurement
it maintains system efficiency in large-scale commercial and industrial boiler circuits
This valve requires a thermopile (powerpile) because it generates a higher millivoltage (750mV) needed to pull in the larger magnetic operator found in high-capacity 700-887 units
System Protection: Constantly monitors high-limit switches and gas valve signals to prevent overheating and hazardous operation
000 watts of auxiliary or emergency heating
Midco International 842519 Blower Air Switch 320819-301 What is the ID andThe 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