York Parts S1-02435978000

York Parts S1-02435978000 is a pressure switch designed for air-pressure control in York HVAC systems. This reliable air pressure switch activates precisely at 0.67 in. wc on fall, delivering dependable performance when cooling or heating cycles begin. The compact design fits a range of York control configurations, helping simplify installation and minimizing downtime.

As a genuine York OEM replacement part, it installs quickly and integrates with existing controls. Built for durability in demanding environments, this switch helps maintain proper system pressure, reduce unnecessary cycling, and extend equipment life. The compact form factor with standard terminals supports straightforward wiring and fast field service.

Ideal for service and replacement projects, this component blends with York systems and supports consistent operation, ensuring reliable performance across seasonal load changes.

• 0.67 in. wc activation on fall for precise control and reliable shutoff.
• Air-pressure switch designed for HVAC systems, compatible with York controls.
• Genuine York OEM replacement part delivering reliable compatibility and warranty support.
• Durable, corrosion-resistant construction built to withstand humid, dusty, and demanding environments.
• Easy installation with standard terminals and fittings for quick field service.