Description
The York S1-024-35780-000 1.0″ WC SPNO Close-On-Fall air pressure switch is a genuine OEM HVAC safety and control component designed for use in York, Coleman, Luxaire, and compatible furnace and air handling systems. This precision pressure switch monitors low pressure (1.0 inch water column) within the system and closes its single-pole, normally-open (SPNO) contacts when pressure falls to the set point, signaling the control board to initiate or continue critical airflow functions. It helps ensure proper inducer motor operation, safe combustion, and reliable overall system performance.
Key Features:
- Calibrated to 1.0 inch water column to detect and respond to specific pressure conditions within air ducts or draft systems
- SPNO (single-pole, normally-open) design that closes on fall to complete a circuit when pressure drops to the set point
- Monitors air pressure for inducer fan and venting safety interlocks, helping prevent unsafe combustion conditions
- Genuine York OEM replacement part engineered for proper fit and consistent performance
- Compact, durable construction designed for long-lasting use in demanding HVAC environments
