York S1-024-36052-014 1.7″WC SPNO Close On Fall Pressure Switch

Description

The York S1-024-36052-014 is an OEM replacement pressure switch engineered for use in York heating and HVAC systems. Designed to monitor combustion air or draft inducer pressure, this switch provides a critical safety function — it features a Single Pole, Normally Open (SPNO) configuration that closes the circuit when system pressure falls to or below its 1.7″ WC (inches of water column) set point. This “close on fall” action ensures the system verifies proper inducer operation before allowing the burner to fire, protecting against unsafe combustion conditions.

Key Features

• OEM York replacement part — direct fit for compatible York furnace and HVAC models
• Set point: 1.7″ WC (inches of water column)
• Switch type: SPNO — Single Pole, Normally Open
• Action: Close On Fall — switch closes when pressure drops to or below set point
• Monitors draft inducer or combustion air pressure for safe system operation
• Prevents burner ignition if adequate inducer airflow is not confirmed
• Reliable safety control designed to meet York OEM specifications

Application

This pressure switch is a key safety component in York gas furnaces and air handling equipment. It works in conjunction with the draft inducer motor to verify that proper negative pressure (draft) is established in the flue system before the ignition sequence proceeds. If the inducer fails or ductwork becomes obstructed, the switch remains open, shutting down the ignition sequence and preventing hazardous operation.

Why Choose OEM York Parts?

Using genuine York OEM replacement components like the S1-024-36052-014 ensures proper calibration, reliable performance, and compatibility with your existing York system controls. Aftermarket substitutes may not meet the precise pressure set point required for safe and efficient operation.