Carrier EA02DZ456 TXV 321702-401 Comprehensive Rebuild: Includes the diaphragm

Comprehensive Rebuild: Includes the diaphragm spring and secondary seals to eliminate internal bypass issues

While these units have secondary adjustment screws

the SEP88A-600R is a complete repair parts kit

While designed to restrict access

streamlining installation in tight mechanical rooms

Carrier EA02DZ456 TXV 321702-401 Comprehensive Rebuild: Includes the diaphragmThe Carrier EA02DZ456 is a high capacity 8 ton thermal expansion valve (TXV) designed for precision refrigerant metering in R22 and R407C HVAC systems. As a professional grade OEM replacement TXV, this component ensures optimal superheat control and evaporator efficiency in large scale residential and commercial condensing units. This specific model features a 5 8" sweat inlet and a 1 1 8" sweat outlet, providing a robust fit for high tonnage