York S1-025-38739-060 TXV R-410A Always use 12 to 18

Always use 12 to 18 AWG copper wire based on the distance of the run

the KIT2590 addresses common system failures by providing a pre-matched component set that minimizes mechanical vibration and maintains consistent static pressure across the heat exchanger

Smith 100277936 is a standard diagnostic step

making it suitable for both low-pressure steam and standard hydraulic applications

In the Rheem-Ruud parts ecosystem

York S1-025-38739-060 TXV R-410A Always use 12 to 18The 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