York S1-025-31989-000 TXV

The York S1-025-31989-000 TXV is a precision-engineered thermal expansion valve designed for tight superheat control in R-22 air conditioning systems. Rated for 3-ton capacity, this OEM component features a 30-inch capillary tube, allowing for flexible mounting within the evaporator coil cabinet. The valve utilizes an Aeroquip fitting connection, ensuring a leak-resistant seal and simplified field installation for technicians performing retrofits or repairs. By modulating refrigerant flow based on heat load, the S1-025-31989-000 prevents liquid slugging and maintains optimal evaporator efficiency. This York replacement TXV is essential for restoring system performance in older residential and light commercial cooling units. Its robust construction handles high-pressure fluctuations, ensuring stable operation across various ambient temperatures. Contractors should verify bulb placement and insulation during installation to maximize the accuracy of the internal sensing element and maintain the system refrigerant charge balance.

• Precise Superheat Regulation: Maintains the ideal refrigerant flow to maximize cooling capacity and protect the compressor.
• Direct OEM Compatibility: Engineered specifically for York, Luxaire, and Coleman 3-ton R-22 evaporator coils.
• Durable Aeroquip Connection: Features high-quality threading for secure, vibration-resistant attachment to the liquid line.
• Extended Capillary Reach: The 30-inch lead provides ample length for proper sensing bulb positioning on the suction line.

What are the symptoms of a failing York 3-ton TXV?
Common indicators include high superheat readings, frost formation on the evaporator coil, or a hunting refrigeration cycle where pressures fail to stabilize.

Can this R-22 TXV be used with R-410A systems?
No, this valve is calibrated specifically for the pressure-temperature characteristics of R-22 refrigerant and cannot be used in R-410A applications.

Does this valve require an internal or external equalizer?
This specific model is designed to match the original equipment specifications provided by York for 3-ton configurations; always check the existing coil's feed requirements before brazing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.