York S1-024-35311-000 Pressure Switch

The York S1-024-35311-000 Pressure Switch is a critical safety component designed for precise monitoring of draft inducer blower performance within gas-fired heating systems. Engineered with a factory-calibrated -0.65" WC trip point, this Single Pole Single Throw (SPST) switch ensures the combustion process only initiates when proper venting pressure and airflow are verified. It features a standard 1/4 inch barbed connection for seamless integration with existing vacuum tubing assemblies. As a genuine OEM component, it provides the exact electrical ratings and pneumatic sensitivity required for York, Coleman, and Luxaire furnaces. This unit is the direct replacement for S1-2702-335P and part number 129694, maintaining the integrity of the original equipment's safety circuit without requiring field modifications. In modern high-efficiency systems, maintaining this specific pressure threshold is essential to prevent intermittent lockout codes or unsafe operating conditions. Utilizing this dedicated York HVAC replacement part ensures the system operates within its engineered specifications and facilitates a reliable ignition sequence.

• OEM compatibility for York, Luxaire, and Coleman gas furnaces.
• Factory-calibrated -0.65" WC setpoint for accurate draft detection.
• Standard 1/4" barbed port for fast pneumatic line connection.
• Heavy-duty SPST contact design for reliable electrical cycling.
• Direct replacement for legacy part numbers S1-2702-335P and 129694.

Does this replace part S1-2702-335P?
Yes, this is the official updated service part for both S1-2702-335P and 129694, offering a direct fit and identical electrical specifications.

What does the -0.65" WC rating signify?
This identifies the specific negative pressure threshold required to close the internal switch contacts, allowing the furnace control board to proceed with the ignition sequence.

Can I use this switch if my current switch has a different WC rating?
No. Pressure switches are safety devices calibrated to the specific venting requirements of the furnace. Always match the WC rating to the manufacturer's specifications for the specific model being serviced.

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.