York S1-024-35324-000 0.6/0.2″ SPNO Close On Fall Pressure Switch

Description

The York S1-024-35324-000 is an OEM replacement pressure switch engineered for use in York heating systems and compatible furnace applications. This Single Pole Normally Open (SPNO) pressure switch is designed to close on a fall in pressure, providing critical safety and operational control within the inducer and combustion air proving circuit.

Product Overview

This pressure switch monitors negative pressure (draft) produced by the inducer blower assembly. When pressure drops to the designated setpoint, the normally open contacts close to signal the control board that proper draft conditions are established — a fundamental safety interlock in modern gas furnace design. The dual setpoint rating of 0.6″ / 0.2″ W.C. ensures precise, reliable switching across the required operating range.

Key Features

• OEM York replacement pressure switch — direct fit for compatible York furnace models
• Single Pole Normally Open (SPNO) contact configuration
• Close on fall action — contacts close when pressure drops to setpoint
• Dual pressure setpoints: 0.6″ / 0.2″ W.C. (water column)
• Designed for inducer/draft proving circuit applications
• Helps protect against improper venting, blocked flue, or inducer failure
• Built to OEM specifications for dependable long-term performance

Application

• York gas furnaces and compatible heating equipment
• Draft inducer pressure proving circuits
• Combustion air safety interlock systems

Specifications

• SKU: S1-024-35324-000
• Brand: York
• Switch Type: SPNO (Single Pole Normally Open)
• Action: Close on Fall
• Pressure Setpoints: 0.6″ / 0.2″ W.C.