Trane SWT3073 Pressure Switch 319847-401 Common Questions Is the S-4004UA

Common Questions Is the S-4004UA compatible with both POE and Mineral oils

always verify against the manufacturer’s spring chart for your specific model and orifice combination

this York high pressure switch is designed for modern refrigerants used in York's industrial lineup

the Johnson Controls D-251-6002 Diaphragm is the primary replacement component for Number 2 pneumatic actuators

This industrial-grade package includes high-quality TXV spare parts that ensure leak-free performance and optimal refrigerant flow across a broad temperature range from -40°F to +50°F

Trane SWT3073 Pressure Switch 319847-401 Common Questions Is the S-4004UAThe Trane SWT3073 Pressure Switch is an essential OEM replacement component for residential and light commercial gas fired furnaces. This SPDT (Single Pole Double Throw) air pressure switch is factory calibrated with a . 76" WC set point to monitor inducer motor airflow and verify appropriate negative pressure before allowing the ignition sequence to proceed. As a critical safety interlock, the Trane SWT03073 prevents unsafe operation by interrupting