Aaon P47500 Valve

The Aaon P47500 is an 8-ton thermostatic expansion valve (TXV) designed specifically for R-22 refrigerant systems. This balanced port TXV features a 5/8" x 7/8" ODF sweat connection configuration, ensuring a reliable, leak-proof fit within high-capacity AAON air handlers and rooftop units. Equipped with a 5-foot capillary tube and an external equalizer, the P47500 provides precise superheat control, preventing liquid slugging and maintaining evaporator efficiency across varying load conditions. For technicians performing HVAC compressor replacement or refrigerant circuit repairs, this valve serves as a critical OEM replacement part for legacy R-22 equipment. The internal power assembly is robustly constructed to handle high pressure differentials, ensuring consistent mass flow regulation. Proper installation requires matching the sensing bulb placement to the suction line for accurate feedback, ensuring the system maintains optimal thermal performance in demanding commercial environments.

• Optimized Superheat Control: Maintains precise refrigerant flow to maximize heat transfer efficiency in R-22 HVAC systems.
• Internal Balanced Port Design: Compensates for high pressure drops and varying head pressures, ideal for commercial 8-ton applications.
• Durable ODF Connections: Features 5/8 inch inlet and 7/8 inch outlet copper connections for secure brazing and long-term durability.
• Extended Reach: Includes a 5-foot capillary lead for flexible sensing bulb placement on larger evaporator coils.

What are the symptoms of a failing Aaon P47500 TXV?
Common indicators include erratic suction pressure, evaporator coil icing, or high superheat readings, often caused by a lost bulb charge or internal debris restricting the orifice.

Is this valve compatible with R-407C retrofits?
While physical dimensions may match, the P47500 is calibrated for the pressure-temperature characteristics of R-22. Using it with other refrigerants may result in improper superheat and potential compressor damage.

Does the P47500 include an external equalizer?
Yes, this Aaon replacement TXV utilizes an external equalizer to accurately monitor pressure at the evaporator outlet, compensating for its internal pressure drop.

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.