
Lennox 25W22 TXV
The Lennox 25W22 Thermal Expansion Valve (TXV) is a critical OEM metering device engineered for high-precision refrigerant flow management in residential and light commercial cooling systems. This externally equalized valve, also identified by part number 100679-01, modulates the flow of refrigerant into the evaporator coil based on heat load, ensuring stable superheat levels. By maintaining the correct balance of liquid and vapor, the 25W22 prevents liquid slugging at the compressor and maximizes heat transfer efficiency. Built as a direct-fit component for specific Lennox air handlers and heat pumps, it provides HVAC contractors with a reliable solution for system troubleshooting where restricted flow or inconsistent pressure is detected. This robust TXV valve is designed for compatibility with R-410A and R-22 systems, depending on specific equipment configurations. Utilizing a sensing bulb and capillary tube system, it reacts instantly to temperature changes at the suction line, allowing the system to maintain optimal energy efficiency and indoor comfort during peak demand.
Key Benefits- Optimized Superheat Control: Consistently regulates refrigerant flow to prevent compressor damage and improve cooling capacity.
- Universal Compatibility: Designed for seamless integration with a wide range of Lennox evaporator coils and air conditioning units.
- Enhanced System Reliability: High-grade corrosion-resistant construction ensures long-term performance in demanding HVAC environments.
- Direct OEM Replacement: Replaces part numbers 25W22 and 100679-01, offering precise fitment to reduce installation time for technicians.
- Energy Efficiency: Helps the system reach the desired SEER ratings by optimizing mass flow rate across the expansion orifice.
Is the Lennox 25W22 compatible with R-410A systems?
Yes, this thermal expansion valve is commonly used in R-410A high-pressure systems, but always verify the specific tonnage and refrigerant requirements on the equipment nameplate before installation.
What are the symptoms of a failing TXV?
Technicians typically identify a faulty 25W22 valve by observing high superheat, low suction pressure, or frost on the expansion valve body, which often mimics a low refrigerant charge.
Does this valve come with the sensing bulb?
Standard Lennox TXV kits like the 25W22 include the sensing bulb and capillary assembly required to accurately monitor the suction line temperature.
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: $147.37
-65%$147.37
$51.58Lennox 25W22 TXV
The Lennox 25W22 Thermal Expansion Valve (TXV) is a critical OEM metering device engineered for high-precision refrigerant flow management in residential and light commercial cooling systems. This externally equalized valve, also identified by part number 100679-01, modulates the flow of refrigerant into the evaporator coil based on heat load, ensuring stable superheat levels. By maintaining the correct balance of liquid and vapor, the 25W22 prevents liquid slugging at the compressor and maximizes heat transfer efficiency. Built as a direct-fit component for specific Lennox air handlers and heat pumps, it provides HVAC contractors with a reliable solution for system troubleshooting where restricted flow or inconsistent pressure is detected. This robust TXV valve is designed for compatibility with R-410A and R-22 systems, depending on specific equipment configurations. Utilizing a sensing bulb and capillary tube system, it reacts instantly to temperature changes at the suction line, allowing the system to maintain optimal energy efficiency and indoor comfort during peak demand.
Key Benefits- Optimized Superheat Control: Consistently regulates refrigerant flow to prevent compressor damage and improve cooling capacity.
- Universal Compatibility: Designed for seamless integration with a wide range of Lennox evaporator coils and air conditioning units.
- Enhanced System Reliability: High-grade corrosion-resistant construction ensures long-term performance in demanding HVAC environments.
- Direct OEM Replacement: Replaces part numbers 25W22 and 100679-01, offering precise fitment to reduce installation time for technicians.
- Energy Efficiency: Helps the system reach the desired SEER ratings by optimizing mass flow rate across the expansion orifice.
Is the Lennox 25W22 compatible with R-410A systems?
Yes, this thermal expansion valve is commonly used in R-410A high-pressure systems, but always verify the specific tonnage and refrigerant requirements on the equipment nameplate before installation.
What are the symptoms of a failing TXV?
Technicians typically identify a faulty 25W22 valve by observing high superheat, low suction pressure, or frost on the expansion valve body, which often mimics a low refrigerant charge.
Does this valve come with the sensing bulb?
Standard Lennox TXV kits like the 25W22 include the sensing bulb and capillary assembly required to accurately monitor the suction line temperature.
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 25W22 Thermal Expansion Valve (TXV) is a critical OEM metering device engineered for high-precision refrigerant flow management in residential and light commercial cooling systems. This externally equalized valve, also identified by part number 100679-01, modulates the flow of refrigerant into the evaporator coil based on heat load, ensuring stable superheat levels. By maintaining the correct balance of liquid and vapor, the 25W22 prevents liquid slugging at the compressor and maximizes heat transfer efficiency. Built as a direct-fit component for specific Lennox air handlers and heat pumps, it provides HVAC contractors with a reliable solution for system troubleshooting where restricted flow or inconsistent pressure is detected. This robust TXV valve is designed for compatibility with R-410A and R-22 systems, depending on specific equipment configurations. Utilizing a sensing bulb and capillary tube system, it reacts instantly to temperature changes at the suction line, allowing the system to maintain optimal energy efficiency and indoor comfort during peak demand.
Key Benefits- Optimized Superheat Control: Consistently regulates refrigerant flow to prevent compressor damage and improve cooling capacity.
- Universal Compatibility: Designed for seamless integration with a wide range of Lennox evaporator coils and air conditioning units.
- Enhanced System Reliability: High-grade corrosion-resistant construction ensures long-term performance in demanding HVAC environments.
- Direct OEM Replacement: Replaces part numbers 25W22 and 100679-01, offering precise fitment to reduce installation time for technicians.
- Energy Efficiency: Helps the system reach the desired SEER ratings by optimizing mass flow rate across the expansion orifice.
Is the Lennox 25W22 compatible with R-410A systems?
Yes, this thermal expansion valve is commonly used in R-410A high-pressure systems, but always verify the specific tonnage and refrigerant requirements on the equipment nameplate before installation.
What are the symptoms of a failing TXV?
Technicians typically identify a faulty 25W22 valve by observing high superheat, low suction pressure, or frost on the expansion valve body, which often mimics a low refrigerant charge.
Does this valve come with the sensing bulb?
Standard Lennox TXV kits like the 25W22 include the sensing bulb and capillary assembly required to accurately monitor the suction line temperature.
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.












