Carrier 331709-759 Valve Kit

The Carrier 331709-759 Expansion Valve Kit is a critical OEM replacement part designed for precision refrigerant metering in residential and light commercial cooling systems. This Thermostatic Expansion Valve (TXV) is engineered specifically for R-410A systems with a capacity range of 1.5 to 2.5 tons. As a direct successor, it functions as the factory-authorized replacement for legacy part numbers 331709-761 and EA36YD085, ensuring seamless mechanical integration without the need for field modifications or line-set adjustments.

For the service technician, this kit provides an essential solution for correcting improper superheat levels and stabilizing evaporator coil pressures. By accurately regulating refrigerant flow based on heat load, the 331709-759 valve optimizes heat exchange efficiency and prevents liquid slugging, thereby protecting the compressor from premature wear. Built to withstand variable operating pressures and high-temperature environments, this Genuine Carrier Part maintains factory-spec performance for Carrier, Bryant, and Payne air conditioning units and heat pumps.

• Exact Compatibility: Serves as the official 331709-761 replacement and EA36YD085 replacement for a drop-in fit.
• Optimized Efficiency: Designed for R-410A refrigerant to maintain precise superheat and improve SEER ratings.
• System Reliability: Precision-calibrated TXV kit prevents evaporator freezing and stabilizes system pressures.
• Versatile Application: Validated for use in 1.5-ton to 2.5-ton Carrier HVAC evaporator coils and air handlers.

Is the 331709-759 compatible with systems using R-22 refrigerant?
No, this specific expansion valve kit is calibrated exclusively for R-410A systems. Using this valve with R-22 will result in incorrect metering and potential equipment damage.

Does this kit include everything needed for a standard TXV replacement?
Yes, this is a complete TXV kit designed to replace the valve assembly in compatible Carrier air conditioning and heat pump coils.

How do I verify if this valve fits my specific evaporator coil?
This kit is the designated replacement for part numbers 331709-761 and EA36YD085. Cross-referencing your unit's model number with the manufacturer’s parts list is recommended to ensure a 1.5-2.5 ton capacity match.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.