Description
The York S1-02435264000 Pressure Switch Close-On Fall is a pressure monitoring component used in airflow and pressure changes within heating and HVAC systems. It is applied in furnace and ventilation applications where controlled pressure verification is necessary for safe equipment operation. Operating at 1.6″ WC, this switch activates when pressure falls to the specified range, helping manage system response during air flow or venting change. Installed within the pressure control circuit, it supports operational safety airflow monitoring, and coordinated communication between heating and control sections.
