York 025-29139-004 Transducer 321042-401 Set it to 'O' for

Set it to 'O' for the majority of heat pumps (energized in cooling) or to 'B' for specific brands like Rheem or Ruud that require the changeover relay to be energized in heating

which is specifically designed to handle moisture

designed to handle high-capacity water or glycol systems where maintaining a stable operating temperature is critical

the TF5 signifies a three-phase motor configuration (200-230V/3PH/60Hz)

The NBR seals ensure reliable seating under varying temperatures

York 025-29139-004 Transducer 321042-401 Set it to 'O' forThe York 025 29139 004 Transducer is a precision HVAC pressure sensor engineered for critical monitoring in industrial chillers, air handling units, and refrigeration systems. As a field proven OEM replacement part, this 0. 5 4. 5V ratiometric transducer converts system pressure into a stable analog signal for seamless integration with building automation systems and central controllers. Designed with a standard 1 4" NPT connection, this unit offers a