York S1-025-38739-060 TXV

The York S1-025-38739-060 TXV is a precision-engineered thermostatic expansion valve designed for high-efficiency 3-ton R410A systems. As a critical HVAC replacement part, this valve manages refrigerant flow by maintaining a constant superheat at the evaporator outlet, effectively preventing coil freeze-up and slugging in the compressor. This OEM-spec R410A expansion valve features 3/8" x 3/8" ODF sweat connections for secure brazing and includes a 30-inch capillary tube for optimal sensing bulb placement. Rated for a maximum operating pressure of 98 PSI, the York S1-025-38739-060 ensures stable performance across varying thermal loads, making it a reliable solution for residential and light commercial air conditioning service. Technicians should verify the 1/8" equalizer line fitting and 36,000 BTU capacity to ensure a precise match with the existing evaporator coil and outdoor unit specifications.

• Precise Superheat Control: Maintains optimal refrigerant saturation to maximize heat transfer efficiency.
• OEM Compatibility: Genuine York replacement ensures exact fitment for 3-ton evaporator coils.
• Durable Construction: High-grade brass body and copper capillary designed to withstand high-pressure R410A environments.
• Extended System Life: Protects the compressor from liquid slugging by accurately regulating 36,000 BTU cooling loads.

Is the York S1-025-38739-060 compatible with R-22 systems?
No, this specific TXV is factory-calibrated for R410A refrigerant and should not be used in systems utilizing R-22 or other refrigerants due to different pressure-temperature characteristics.

What are the connection sizes for this 3-ton TXV?
The valve features a 3/8-inch inlet and a 3/8-inch outlet with ODF (sweat) connections, along with a standard 1/8-inch equalizer line.

Can I use this valve on a 2.5-ton unit?
This valve is specifically rated for 3-ton (36,000 BTU) applications. Installing a mismatched TXV can lead to hunting or improper superheat; always consult the equipment nameplate for exact tonnage requirements.

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.