With a 1/2" NPT connection and a 120Vac coil

Field Service Efficiency: Features physical dimensions optimized for standard mounting brackets in most condensing units

As a Size 4 Type J Sure-Flex Plus flange

Universal Compatibility: Accepts 0-10Vdc

or visible stress cracks in the mounting base

Carrier 331709-752 TXV Replacement 322056-301 With a 1/2" NPT connectionThe Carrier 331709 752 TXV Replacement Kit is a field proven thermostatic expansion valve designed specifically for 3. 5 to 4 ton evaporator coils. Engineered for R 22 refrigerant systems, this hard shut off TXV modulates flow based on the technical cooling load, preventing liquid slugging to the compressor while maintaining precise superheat control. As a Factory Authorized Part, it serves as a drop in replacement for legacy ICP and Carrier part