York S1-024-36052-018 Pressure Switch Swapping to a green (6–14"

Swapping to a green (6–14" WC) or blue (6–8" WC) spring is only recommended if the specific downstream application requires a manual set point outside of the 3

The auto reset functionality eliminates the need for manual intervention after the system cools

The York S1-025-38412-000 Limit Switch is a critical safety component designed for precise temperature regulation in HVAC furnace systems

or a failing start relay can cause internal overheating and venting

OEM Compatibility: A direct Lennox 27K7901 replacement

York S1-024-36052-018 Pressure Switch Swapping to a green (6–14"The York S1 024 36052 018 Pressure Switch is the definitive OEM replacement pressure switch engineered for precision airflow monitoring in high efficiency York, Coleman, and Luxaire furnaces. This furnace pressure switch is factory calibrated with a . 20" WC pressure rating and features a Single Pole Normally Open (SPNO pressure switch) configuration that is designed to close on fall. It ensures the inducer motor establishes a consistent vacuum,