York S1-024-25006-709 Pressure Switch

The York S1-024-25006-709 Pressure Switch is a critical safety component designed for precise differential pressure sensing in high-efficiency furnace draft inducer systems. This OEM York replacement part is calibrated for a specific 1.20" WC set point, ensuring that the inducer motor maintains the necessary vacuum for safe combustion and proper flue gas venting. Featuring a robust SPST (Single Pole Single Throw) configuration, this switch acts as a primary safety interlock, preventing ignition if airflow obstructions or mechanical failures are detected within the heat exchanger or venting assembly.

Engineered for professional HVAC mechanical contractor use, the S1-024-25006-709 utilizes a standard 1/4" barbed connection for easy integration with existing pneumatic hoses. Its durable housing is built to withstand the thermal cycling and humidity common in residential HVAC equipment applications. Whether you are servicing a York, Coleman, or Luxaire unit, maintaining the correct water column pressure switch rating is essential for system reliability and preventing nuisance lockout codes related to pressure switch monitoring circuits.

• OEM-Spec Calibration: Factory-set at 1.20" WC to ensure exact compatibility with proprietary York gas furnace blower curves.
• Heavy-Duty Construction: Designed for long-term SPST switch reliability in demanding industrial and commercial HVACR environments.
• Direct Fit: Includes a 1/4" barbed vacuum port to match standard OEM tubing, reducing installation time in the field.
• Critical Safety Logic: Provides essential inducer motor pressure monitoring to prevent unsafe combustion conditions.

What happens if a furnace pressure switch stays open?
If the S1-024-25006-709 fails to close at the 1.20" WC threshold, the control board will prevent the furnace from entering the ignition sequence to ensure safety.

Can I use a different WC rating for my York furnace?
No. Pressure switches must match the manufacturer’s specifications. Using a switch with a different differential pressure set point can lead to unsafe operation or frequent system lockouts.

Is this switch compatible with other Source1 brands?
Yes, this is an OEM Source1 part typically found in York, Coleman, and Luxaire gas furnaces that require a 1.20" WC rating.

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.