Lennox 59W20 TXV
The Lennox 59W20 TXV is a high-precision thermal expansion valve engineered for R-410A refrigerant systems. This OEM expansion valve (part number 100679-33) is designed to optimize evaporator efficiency by maintaining consistent superheat levels across varying thermal loads. Built with a durable brass body, the unit features a 3/8" x 1/2" ODF connection configuration, a 30-inch capillary tube, and a 1/4" sensing bulb to provide responsive metering and prevent liquid slugging. With a nominal operating pressure of 84+2 PSIG, this component is a critical HVAC replacement part for Lennox LCH and LGH series rooftop units and split systems. Its robust design ensures accurate refrigerant flow control, reducing the risk of compressor failure and evaporator coil icing in light commercial and residential applications. For contractors, this is a direct-fit solution that preserves original equipment efficiency ratings and ensures reliable system balance under peak operational conditions.
Key Benefits- Precise Superheat Control: Maintains exact refrigerant metering to prevent evaporator coil icing and maximize heat transfer.
- System Reliability: Protects the compressor from liquid floodback, extending the service life of Lennox HVAC systems.
- Direct OEM Fit: Ensures 100% compatibility with Lennox 59W20 specifications, eliminating the need for field modifications.
- Durable Construction: High-quality brass and internal components designed to resist corrosion and handle high-pressure R-410A environments.
- What are the symptoms of a failing Lennox 59W20 expansion valve? Common signs include low suction pressure, high superheat at the evaporator outlet, or visible frost on the expansion valve body and distributor lines.
- Is this TXV compatible with older R-22 systems? No, this valve is specifically calibrated for R-410A refrigerant and its associated pressure-temperature curves.
- What is the purpose of the 30-inch capillary tube? The extended length allows for flexible mounting of the sensing bulb on the suction line to ensure accurate temperature sensing for the powerhead.
This item is not eligible for free shipping.
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: $140.44
-65%$140.44
$49.15Lennox 59W20 TXV
The Lennox 59W20 TXV is a high-precision thermal expansion valve engineered for R-410A refrigerant systems. This OEM expansion valve (part number 100679-33) is designed to optimize evaporator efficiency by maintaining consistent superheat levels across varying thermal loads. Built with a durable brass body, the unit features a 3/8" x 1/2" ODF connection configuration, a 30-inch capillary tube, and a 1/4" sensing bulb to provide responsive metering and prevent liquid slugging. With a nominal operating pressure of 84+2 PSIG, this component is a critical HVAC replacement part for Lennox LCH and LGH series rooftop units and split systems. Its robust design ensures accurate refrigerant flow control, reducing the risk of compressor failure and evaporator coil icing in light commercial and residential applications. For contractors, this is a direct-fit solution that preserves original equipment efficiency ratings and ensures reliable system balance under peak operational conditions.
Key Benefits- Precise Superheat Control: Maintains exact refrigerant metering to prevent evaporator coil icing and maximize heat transfer.
- System Reliability: Protects the compressor from liquid floodback, extending the service life of Lennox HVAC systems.
- Direct OEM Fit: Ensures 100% compatibility with Lennox 59W20 specifications, eliminating the need for field modifications.
- Durable Construction: High-quality brass and internal components designed to resist corrosion and handle high-pressure R-410A environments.
- What are the symptoms of a failing Lennox 59W20 expansion valve? Common signs include low suction pressure, high superheat at the evaporator outlet, or visible frost on the expansion valve body and distributor lines.
- Is this TXV compatible with older R-22 systems? No, this valve is specifically calibrated for R-410A refrigerant and its associated pressure-temperature curves.
- What is the purpose of the 30-inch capillary tube? The extended length allows for flexible mounting of the sensing bulb on the suction line to ensure accurate temperature sensing for the powerhead.
This item is not eligible for free shipping.
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 59W20 TXV is a high-precision thermal expansion valve engineered for R-410A refrigerant systems. This OEM expansion valve (part number 100679-33) is designed to optimize evaporator efficiency by maintaining consistent superheat levels across varying thermal loads. Built with a durable brass body, the unit features a 3/8" x 1/2" ODF connection configuration, a 30-inch capillary tube, and a 1/4" sensing bulb to provide responsive metering and prevent liquid slugging. With a nominal operating pressure of 84+2 PSIG, this component is a critical HVAC replacement part for Lennox LCH and LGH series rooftop units and split systems. Its robust design ensures accurate refrigerant flow control, reducing the risk of compressor failure and evaporator coil icing in light commercial and residential applications. For contractors, this is a direct-fit solution that preserves original equipment efficiency ratings and ensures reliable system balance under peak operational conditions.
Key Benefits- Precise Superheat Control: Maintains exact refrigerant metering to prevent evaporator coil icing and maximize heat transfer.
- System Reliability: Protects the compressor from liquid floodback, extending the service life of Lennox HVAC systems.
- Direct OEM Fit: Ensures 100% compatibility with Lennox 59W20 specifications, eliminating the need for field modifications.
- Durable Construction: High-quality brass and internal components designed to resist corrosion and handle high-pressure R-410A environments.
- What are the symptoms of a failing Lennox 59W20 expansion valve? Common signs include low suction pressure, high superheat at the evaporator outlet, or visible frost on the expansion valve body and distributor lines.
- Is this TXV compatible with older R-22 systems? No, this valve is specifically calibrated for R-410A refrigerant and its associated pressure-temperature curves.
- What is the purpose of the 30-inch capillary tube? The extended length allows for flexible mounting of the sensing bulb on the suction line to ensure accurate temperature sensing for the powerhead.
This item is not eligible for free shipping.
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.
