Trane VAL2979 TXV 319847-401 the 510-312-015 comes as a

the 510-312-015 comes as a kit that includes the immersion well

which is the primary cause of premature coil failure in evaporative environments

3" WC for optimal natural gas flow and burner efficiency

Check your series build date to verify

75" water column switch is the direct replacement to restore factory-spec performance and safety bypass protection

Trane VAL2979 TXV 319847-401 the 510-312-015 comes as aThe Trane VAL2979 TXV is a critical fluid metering component engineered to maintain precise superheat control in 4 ton HVAC residential air conditioning and heat pump systems. Designed for high reliability applications, this thermostatic expansion valve features 1 2 inch ODF inlet and outlet connections, facilitating a robust sweat fit installation for professional technicians. By modulating refrigerant flow into the evaporator coil, this OEM