Description
The Carrier 331709-752 is a replacement kit for a Thermal Expansion Valve which is used in HVAC systems. The TXV is a bi-metal device of approximately the size of a large bar of soap (2.5 x 4.8 x 3.5 inch, and is used to control the refrigerant flow in your air conditioning system. Because the TXV is sensitive to temperature change, it opens or closes the flow of refrigerant to regulate the cool air temperature. This replacement kit is for R-22 refrigerant and is suitable for Carrier systems that are sized for 3 ½ to 4 tons.
