Trane VAL8719 TXV 319852-301 also identified as the FSY-43S

also identified as the FSY-43S

Always verify the 480V power supply is locked out before testing resistance

Common Questions: What is the function of the 65Op/75Cl setting

this replacement thermal fuse is a standard requirement for maintaining Raypak digital atmospheric heaters such as the R206A

What are the symptoms of a failing Lochinvar gas control valve

Trane VAL8719 TXV 319852-301 also identified as the FSY-43SThe Trane VAL8719 expansion valve is a precision engineered OEM replacement part designed for high performance HVAC 3 ton systems. As a veteran grade thermostatic expansion valve (TXV), this component features a 3 8 inch inlet and a 1 2 inch outlet, optimized for R410A refrigerant flow regulation. This valve maintains a critical pressure rating of 89 85#, ensuring the evaporator coil operates at peak efficiency by accurately modulating refrigerant