Replacement HVAC Part

This genuine OEM pressure switch is designed as a direct replacement for York S1-02439716000 and compatible furnace models. Engineered to monitor and regulate pressure levels in heating systems, this switch ensures proper draft and airflow verification while maintaining optimal furnace operation. The unit features a pressure actuation point of -0.20 inches of water column (WC) and utilizes SPDT (single pole double throw) contact configuration for reliable performance in residential and commercial HVAC applications. As a critical safety component, this pressure switch continuously monitors venting systems and automatically regulates furnace performance based on detected pressure conditions, preventing unsafe operation and enhancing system longevity. The product arrives new in original York factory packaging, ensuring authenticity and protection during storage and installation. This replacement part is ideal for technicians and facility managers requiring a dependable OEM-equivalent solution for furnace maintenance, repairs, and system upgrades. Compatible with specified York furnace models, this pressure switch delivers the precision monitoring and safety functionality original equipment manufacturers specify for proper HVAC system operation.