Midco International 842519 Blower Air Switch
The 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 set points, preventing unsafe operation in the event of a restricted intake or flue blockage. Professional contractors rely on this furnace air pressure switch for its durable construction and seamless integration into Midco power burners and high-efficiency HVAC units. By replacing a failing sensor with this genuine Midco air prover switch, you ensure accurate signal feedback to the control board, maintaining system integrity and avoiding nuisance lockouts due to HVAC pressure switch failure.
Key Benefits
- Precise Pressure Sensitivity: Calibrated to detect minute changes in static pressure for accurate airflow proving.
- OEM Compatibility: A direct drop-in replacement for Midco 842519, ensuring terminal alignment and mounting hole accuracy.
- Rugged Enclosure: Engineered to withstand the thermal stress and vibration common in commercial mechanical rooms.
- Safety Compliance: Functions as a primary safety interlock to prevent combustion without adequate ventilation.
Common Questions
How do I troubleshoot a Midco 842519 blower switch?
Technicians should check for cracked sensing tubes or blockages in the pitot tube before replacing. If the blower is running but the air switch fails to close the circuit, use a manometer to verify the pressure meets the switch's required set point.
Will this work on other burner brands?
While many switches look similar, this is specifically engineered for Midco International systems. Check your existing part number or the unit’s wiring diagram to confirm 842519 is the specified component.
What causes these switches to fail?
Most failures result from diaphragm perforation, debris in the sampling lines, or corroded electrical contacts resulting from high-humidity environments.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $132.54
-65%$132.54
$46.39Midco International 842519 Blower Air Switch
The 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 set points, preventing unsafe operation in the event of a restricted intake or flue blockage. Professional contractors rely on this furnace air pressure switch for its durable construction and seamless integration into Midco power burners and high-efficiency HVAC units. By replacing a failing sensor with this genuine Midco air prover switch, you ensure accurate signal feedback to the control board, maintaining system integrity and avoiding nuisance lockouts due to HVAC pressure switch failure.
Key Benefits
- Precise Pressure Sensitivity: Calibrated to detect minute changes in static pressure for accurate airflow proving.
- OEM Compatibility: A direct drop-in replacement for Midco 842519, ensuring terminal alignment and mounting hole accuracy.
- Rugged Enclosure: Engineered to withstand the thermal stress and vibration common in commercial mechanical rooms.
- Safety Compliance: Functions as a primary safety interlock to prevent combustion without adequate ventilation.
Common Questions
How do I troubleshoot a Midco 842519 blower switch?
Technicians should check for cracked sensing tubes or blockages in the pitot tube before replacing. If the blower is running but the air switch fails to close the circuit, use a manometer to verify the pressure meets the switch's required set point.
Will this work on other burner brands?
While many switches look similar, this is specifically engineered for Midco International systems. Check your existing part number or the unit’s wiring diagram to confirm 842519 is the specified component.
What causes these switches to fail?
Most failures result from diaphragm perforation, debris in the sampling lines, or corroded electrical contacts resulting from high-humidity environments.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The 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 set points, preventing unsafe operation in the event of a restricted intake or flue blockage. Professional contractors rely on this furnace air pressure switch for its durable construction and seamless integration into Midco power burners and high-efficiency HVAC units. By replacing a failing sensor with this genuine Midco air prover switch, you ensure accurate signal feedback to the control board, maintaining system integrity and avoiding nuisance lockouts due to HVAC pressure switch failure.
Key Benefits
- Precise Pressure Sensitivity: Calibrated to detect minute changes in static pressure for accurate airflow proving.
- OEM Compatibility: A direct drop-in replacement for Midco 842519, ensuring terminal alignment and mounting hole accuracy.
- Rugged Enclosure: Engineered to withstand the thermal stress and vibration common in commercial mechanical rooms.
- Safety Compliance: Functions as a primary safety interlock to prevent combustion without adequate ventilation.
Common Questions
How do I troubleshoot a Midco 842519 blower switch?
Technicians should check for cracked sensing tubes or blockages in the pitot tube before replacing. If the blower is running but the air switch fails to close the circuit, use a manometer to verify the pressure meets the switch's required set point.
Will this work on other burner brands?
While many switches look similar, this is specifically engineered for Midco International systems. Check your existing part number or the unit’s wiring diagram to confirm 842519 is the specified component.
What causes these switches to fail?
Most failures result from diaphragm perforation, debris in the sampling lines, or corroded electrical contacts resulting from high-humidity environments.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
