Complete Retrofit Solution: Includes all necessary HVAC replacement parts

Always verify the manufacturer's parts list for the specific serial number

This prevents localized "hot spots" in the heat exchanger or freezing on the evaporator coil caused by lagged sensor feedback

As technicians

preventing loose fan blades during high-RPM cycles

Trane VAL8989 TXV 318820-201 Complete Retrofit Solution: Includes allThe Trane VAL8989 TXV is a high performance, 5 ton thermostatic expansion valve engineered specifically for R410A refrigerant systems. Designed for precise metering device control, this valve features 3 8" inlet and 1 2" outlet sweat connections, ensuring a reliable fit for standard liquid line and evaporator coil configurations. Built with a rugged brass body and stainless steel internal components, it maintains optimal evaporator superheat across a