Lennox 78L20 Valve
The Lennox 78L20 Valve is a professional-grade thermostatic expansion valve (TXV) designed for precision refrigerant metering in 3-ton residential and light commercial AC units. Engineered specifically for R22 and R407C refrigerants, this OEM component regulates flow into the evaporator coil to maintain optimal superheat, preventing liquid slugging and protecting the compressor from premature failure. Featuring a 3/8" x 1/2" ODF (Outside Diameter Female) solder connection, the 78L20 expansion valve ensures a leak-resistant, high-pressure seal essential for maintaining system charge integrity. This mechanical expansion device is a critical replacement part for Lennox and Allied Air equipment, restoring factory-spec cooling efficiency and heat transfer rates. For contractors performing retrofits or repairs, the Lennox 78L20 3-ton TXV provides the localized pressure drop necessary for stable evaporator performance across varying thermal loads. Trust this OEM HVAC part to ensure your R22 to R407C conversion or standard repair meets rigorous technical benchmarks.
Key Benefits- Optimized Superheat Control: Maintains precise refrigerant levels to maximize evaporator efficiency and protect the compressor.
- Dual Refrigerant Compatibility: Internally calibrated for use with both R22 and R407C replacement blends.
- Durable ODF Connections: The 3/8 inch inlet and 1/2 inch outlet solder fittings provide a robust, vibration-resistant interface.
- OEM Reliability: Genuine Lennox replacement ensures exact fitment and performance without the need for field modifications.
- Is the Lennox 78L20 compatible with R410A systems? No, this valve is specifically calibrated for the pressure-temperature characteristics of R22 and R407C. Using it with R410A will lead to improper metering and potential system damage.
- What is the tonnage rating for this TXV? This is a 3-ton capacity valve, designed for air conditioning systems within that specific BTU range.
- Does this valve include the sensing bulb? Yes, as a thermostatic expansion valve, it utilizes a sensing bulb to monitor suction line temperature for real-time flow adjustment.
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.
Original: $202.20
-65%$202.20
$70.77Lennox 78L20 Valve
The Lennox 78L20 Valve is a professional-grade thermostatic expansion valve (TXV) designed for precision refrigerant metering in 3-ton residential and light commercial AC units. Engineered specifically for R22 and R407C refrigerants, this OEM component regulates flow into the evaporator coil to maintain optimal superheat, preventing liquid slugging and protecting the compressor from premature failure. Featuring a 3/8" x 1/2" ODF (Outside Diameter Female) solder connection, the 78L20 expansion valve ensures a leak-resistant, high-pressure seal essential for maintaining system charge integrity. This mechanical expansion device is a critical replacement part for Lennox and Allied Air equipment, restoring factory-spec cooling efficiency and heat transfer rates. For contractors performing retrofits or repairs, the Lennox 78L20 3-ton TXV provides the localized pressure drop necessary for stable evaporator performance across varying thermal loads. Trust this OEM HVAC part to ensure your R22 to R407C conversion or standard repair meets rigorous technical benchmarks.
Key Benefits- Optimized Superheat Control: Maintains precise refrigerant levels to maximize evaporator efficiency and protect the compressor.
- Dual Refrigerant Compatibility: Internally calibrated for use with both R22 and R407C replacement blends.
- Durable ODF Connections: The 3/8 inch inlet and 1/2 inch outlet solder fittings provide a robust, vibration-resistant interface.
- OEM Reliability: Genuine Lennox replacement ensures exact fitment and performance without the need for field modifications.
- Is the Lennox 78L20 compatible with R410A systems? No, this valve is specifically calibrated for the pressure-temperature characteristics of R22 and R407C. Using it with R410A will lead to improper metering and potential system damage.
- What is the tonnage rating for this TXV? This is a 3-ton capacity valve, designed for air conditioning systems within that specific BTU range.
- Does this valve include the sensing bulb? Yes, as a thermostatic expansion valve, it utilizes a sensing bulb to monitor suction line temperature for real-time flow adjustment.
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.
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Description
The Lennox 78L20 Valve is a professional-grade thermostatic expansion valve (TXV) designed for precision refrigerant metering in 3-ton residential and light commercial AC units. Engineered specifically for R22 and R407C refrigerants, this OEM component regulates flow into the evaporator coil to maintain optimal superheat, preventing liquid slugging and protecting the compressor from premature failure. Featuring a 3/8" x 1/2" ODF (Outside Diameter Female) solder connection, the 78L20 expansion valve ensures a leak-resistant, high-pressure seal essential for maintaining system charge integrity. This mechanical expansion device is a critical replacement part for Lennox and Allied Air equipment, restoring factory-spec cooling efficiency and heat transfer rates. For contractors performing retrofits or repairs, the Lennox 78L20 3-ton TXV provides the localized pressure drop necessary for stable evaporator performance across varying thermal loads. Trust this OEM HVAC part to ensure your R22 to R407C conversion or standard repair meets rigorous technical benchmarks.
Key Benefits- Optimized Superheat Control: Maintains precise refrigerant levels to maximize evaporator efficiency and protect the compressor.
- Dual Refrigerant Compatibility: Internally calibrated for use with both R22 and R407C replacement blends.
- Durable ODF Connections: The 3/8 inch inlet and 1/2 inch outlet solder fittings provide a robust, vibration-resistant interface.
- OEM Reliability: Genuine Lennox replacement ensures exact fitment and performance without the need for field modifications.
- Is the Lennox 78L20 compatible with R410A systems? No, this valve is specifically calibrated for the pressure-temperature characteristics of R22 and R407C. Using it with R410A will lead to improper metering and potential system damage.
- What is the tonnage rating for this TXV? This is a 3-ton capacity valve, designed for air conditioning systems within that specific BTU range.
- Does this valve include the sensing bulb? Yes, as a thermostatic expansion valve, it utilizes a sensing bulb to monitor suction line temperature for real-time flow adjustment.
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.
