This HVAC pressure switch is engineered for high-side monitoring

and adjustment screw

Built with a dry case and a black steel housing

the 054404 resists corrosion and prevents element failure in demanding mechanical environments

Enhanced Durability: Built with non-corrosive materials to withstand constant moisture exposure without rusting through

Trane SEN1520 Stat & Sensor 319847-401 This HVAC pressure switch isFor field technicians and mechanical contractors, the Trane SEN1520 (also identified under part number SEN01520) is a critical OEM replacement 3 speed fan thermostat and sensor. This HVAC temperature control sensor is engineered specifically for Trane and American Standard air handlers, furnaces, and packaged units. It provides integrated control for three speed blower fan operation (Low, Medium, and High), ensuring accurate airflow modulation based