The York S1-025-32798-036 is a professional-grade 5-ton R-22 thermostatic expansion valve designed for precision refrigerant metering in residential and light commercial evaporator coils

Quiet Operation: Eliminates the rattling or inconsistent fan speeds associated with failing mechanical switches

If your controller is configured strictly for voltage

Common Questions What happens if the gasket is missing from the KR325C12 seal cap

Daikin-McQuay 668043001 Valve 321142-301 The York S1-025-32798-036 is aThe Daikin McQuay 668043001 Valve is an essential OEM thermostatic expansion valve (TXV) engineered for precision refrigerant metering in commercial HVAC systems. This specific 1 4" x 3 8" ODF expansion valve is designed as a direct replacement part for Daikin and McQuay equipment, commonly utilized in R22 refrigerant applications to maintain a constant superheat at the evaporator outlet. By regulating the pressure drop from a high pressure liquid to