Midco International 842519 Blower Air Switch 320735-701 Is the VAL7991 compatible with

Is the VAL7991 compatible with R-410A systems

While the 5/8" x 1-1/8" ODF connections are standard

While designed for York/Luxaire/Coleman equipment

Serviceability: The built-in refrigerant access fitting enables rapid evacuation

Midco International 842519 Blower Air Switch 320735-701 Is the VAL7991 compatible withThe 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