York S1-025-45303-000 Expansion Valve

As an HVAC professional, you know that precise refrigerant metering is non-negotiable for system longevity and efficiency. The York S1-025-45303-000 Expansion Valve is a 6-ton R410A TXV engineered specifically for high-capacity cooling performance. Designed with 3/8" x 5/8" ODF connections, this thermostatic expansion valve provides a robust sweat interface for 6-ton HVAC systems, ensuring leak-free integration into the liquid line and evaporator inlet. This OEM component is the direct York replacement expansion valve for units such as the ZF150C00P2FAA5, maintaining the exact pressure drop characteristics required for high-efficiency operation.

By monitoring superheat at the evaporator outlet, this York TXV 6-ton R410A prevents liquid slugging to the compressor while maximizing the heat transfer surface area of the coil. It is a critical component for technicians performing a TXV replacement for 6-ton unit installations or repairs. Utilizing this genuine S1-025-45303-000 part guarantees that the mechanical modulation matches the original system design, avoiding the hunt-and-surge issues common with generic aftermarket alternatives.

• Precise Flow Control: Specifically calibrated for 6-ton R410A systems to maintain optimal superheat settings and prevent evaporator freeze-ups.
• Secure ODF Connections: Features 3/8" inlet and 5/8" outlet ODF (Open Drive Female) sweat connections for a standard professional installation.
• OEM Compatibility: Exact replacement for York S1-025-45303-000, ensuring full compatibility with compatible York and Guardian air handlers or packaged units.
• Enhanced Efficiency: Optimizes refrigerant charge across varying load conditions, reducing energy consumption and mechanical stress.

What is the connection type for the S1-025-45303-000?
This valve features sweat-on ODF connections, with a 3/8" inlet and a 5/8" outlet, designed for standard brazing procedures in 6-ton HVAC liquid lines.

Is this valve compatible with R-22 systems?
No, this thermostatic expansion valve is specifically designed for R410A refrigerant and should not be used in older R-22 systems due to different pressure and oil requirements.

Can I use this TXV on a 5-ton unit?
While physically similar, this is a 6-ton expansion valve. Oversizing a TXV can lead to "hunting," where the valve over-corrects and floods the coil, potentially damaging the compressor. Always match the tonnage to the equipment specifications.

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.