Description
York S1-024-34560-000 Pressure Switch Overview
The York S1-024-34560-000 is an OEM replacement pressure switch engineered to York’s exact factory specifications. With a set point of 0.80″ WC (open) and 0.40″ WC (close), this switch monitors the negative pressure generated by the draft inducer motor to confirm proper venting airflow before the ignition sequence is allowed to proceed — a critical safety function in modern gas furnaces.
How It Works
The pressure switch is connected to the furnace’s inducer assembly via a rubber hose. When the inducer motor runs and creates the required negative pressure, the diaphragm inside the switch deflects and closes the electrical circuit, signaling the control board that safe combustion conditions exist. If the required pressure is not reached — due to a blocked flue, failed inducer, or collapsed hose — the switch remains open and lockout occurs, protecting the heat exchanger and occupants from combustion hazards.
Key Features
- OEM York replacement part — direct drop-in fit for compatible York furnace models
- Open set point: 0.80″ WC
- Close set point: 0.40″ WC
- Monitors draft inducer negative pressure for safe ignition sequencing
- Prevents furnace operation under unsafe venting or airflow conditions
- Durable diaphragm construction for long-term reliability
- Designed for use in residential and light-commercial gas furnace applications
Application
This pressure switch is intended for use in York brand gas furnaces. Always verify compatibility with your specific furnace model number before installation. Consult the furnace wiring diagram and service manual for proper hose routing and electrical connection.
Specifications
- SKU: S1-024-34560-000
- Brand: York (OEM)
- Open Set Point: 0.80″ WC
- Close Set Point: 0.40″ WC
- Type: Draft Inducer / Combustion Air Pressure Switch
- Application: Gas Furnace
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