Lennox 24W73 TXV

The Lennox 24W73 is a 4-ton thermal expansion valve specifically engineered for high-efficiency R-410A refrigeration and air conditioning systems. This genuine OEM Lennox TXV functions as a mission-critical metering device, precisely regulating refrigerant flow to the evaporator coil to maintain optimal superheat levels. Featuring a 3/8 inch by 1/2 inch ODF connection, this valve allows for a reliable, leak-resistant braze joint during installation. The 30 inch capillary tube provides the necessary reach for flexible bulb positioning on the suction line, ensuring accurate temperature sensing and responsive modulation. Optimized for Lennox HVAC systems, this component helps prevent compressor slugging by controlling liquid floodback while maximizing heat exchange efficiency. Whether you are performing a TXV replacement or a full system overhaul, the 24W73 expansion valve ensures the unit operates within manufacturer spec for subcooling and suction pressure.

Key Benefits:

• Precise Refrigerant Metering: Delivers exact R-410A volume to the evaporator to maintain a consistent 8°F to 14°F superheat range.
• Optimized System Efficiency: Enhances the SEER rating of 4-ton cooling units by preventing overfeeding or starving of the coil.
• Durable OEM Construction: Built to withstand high-pressure industrial and residential environments without internal fatigue.
• Extended Capillary Reach: The 30-inch lead simplifies bulb mounting in tight furnace or air handler cabinets.
• Secure Connections: 3/8" x 1/2" ODF fitting design ensures a professional, secure fit with standard refrigerant lines.

Common Questions:

• What does a 3/8" x 1/2" ODF connection mean? ODF stands for "Outside Diameter Female," meaning the copper refrigerant lines slide into the valve connections for a standard brazed joint.
• Can this TXV be used with R-22 systems? No, the Lennox 24W73 is specifically factory-set and orifice-sized for R-410A refrigerant applications.
• How do I know if my current TXV is failing? Common indicators include high superheat readings, low suction pressure, or frost forming directly at the valve outlet or the equalizer line.
• Is this valve compatible with Lennox KCA or KCB series? Yes, the 24W73 is a direct replacement for several commercial and residential models, including KCA092 and KCB092 units.

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.