Field technicians and HVAC contractors rely on the Lennox 60L37 Expansion Valve to maintain precise refrigerant metering in high-demand environments. This OEM Lennox replacement part, which is physically and functionally identical to the 60L3701 and 040658-01 part numbers, is a 5-ton H-series Thermostatic Expansion Valve (TXV) engineered for R-22 and R-407C systems. With a 3/8-inch inlet and 1/2-inch outlet, this valve ensures optimal superheat and prevents liquid slugging, protecting the compressor from premature failure. Whether you are performing a Lennox HVAC repair on a residential A-coil or a commercial condensing unit, the 60L37 provides the consistent mass flow needed for maximum cooling capacity. Designed for HVAC refrigerant flow control, it effectively replaces legacy part numbers 47K23 and 62A48, offering a seamless fit for legacy CHA16 and CVP10 series units. Trust this thermal expansion valve to restore system pressure balance and improve the overall efficiency of 5-ton air conditioning and heat pump applications. Key Benefits: Direct OEM Compatibility: Serves as a 100% matched replacement for model 60L3701, ensuring zero-modification installation. Precision Refrigerant Metering: Specifically tuned for 5-ton loads to maintain exact superheat levels across the evaporator coil. Dual Refrigerant Application: Rated for use with both R-22 and R-407C, making it a versatile choice for servicing older equipment. Heavy-Duty Construction: Built to withstand commercial-grade vibration and thermal cycling without losing calibration. System Efficiency: Optimizes heat transfer efficiency by preventing under-feeding or over-feeding of the liquid line. Common Questions: Is the 60L37 interchangeable with the 60L3701? Yes, the 60L37 and 60L3701 are the same factory-specified component. Any documentation listing either part number refers to this exact 5-ton expansion valve. What are the connection sizes for this TXV? This valve features a standard 3/8-inch inlet and a 1/2-inch outlet, facilitating a standard brazed or flare connection depending on your specific coil configuration. Which systems is this part designed for? It is primarily utilized in Lennox 5-ton residential and commercial systems, including various CHA and CVP evaporator coil assemblies using R-22 or R-407C refrigerants. 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.
