Lennox 42W30 TXV
Ensure precise refrigerant metering with the Lennox 42W30 TXV, a high-performance 4-ton thermostatic expansion valve designed specifically for R410A systems. This OEM replacement (part number 100679-16) features 3/8" x 1/2" ODF brazed connections, providing a robust, leak-resistant interface for standard liquid and suction lines. Engineered for high-efficiency cooling, the 42W30 maintains the ideal superheat across the evaporator coil, preventing liquid slugging and protecting the compressor in demanding duty cycles.
This Lennox expansion valve is a direct-fit component for various Lennox and Allied units, including KGA036 and KGA048 series rooftop systems. As a non-bleed port TXV, it is optimized for high-SEER applications where tight refrigerant control is mandatory for peak SEER2 performance. Its balanced port construction compensates for changes in head pressure, ensuring consistent R410A refrigerant flow regardless of outdoor ambient fluctuations. For field installations, technicians should utilize a wet rag or heat sink on the valve body and sensing bulb during the brazing process to maintain internal integrity.
Key Benefits
- Compatible with 4-ton R410A air conditioning and heat pump systems.
- Features 3/8" x 1/2" ODF sweat connections for secure, permanent brazed joints.
- OEM Lennox 42W30 replacement ensures exact mechanical fit and factory-spec performance.
- Maintains precise evaporative superheat to maximize system efficiency and prevent compressor damage.
Common Questions
Is the 42W30 compatible with R22 systems?
No, this valve is specifically calibrated for the pressure-temperature characteristics of R410A refrigerant and should not be used in R22 applications.
What are the connection sizes for this 4-ton TXV?
The valve utilizes a 3/8" ODF inlet and a 1/2" ODF outlet, making it standard for many 4-ton HVAC systems.
Does this valve require an external equalizer line?
Yes, this is an internally/externally equalized valve depending on the specific kit configuration; the 42W30 typically utilizes an external equalizer to account for pressure drops across the distributor.
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: $143.31
-65%$143.31
$50.16Lennox 42W30 TXV
Ensure precise refrigerant metering with the Lennox 42W30 TXV, a high-performance 4-ton thermostatic expansion valve designed specifically for R410A systems. This OEM replacement (part number 100679-16) features 3/8" x 1/2" ODF brazed connections, providing a robust, leak-resistant interface for standard liquid and suction lines. Engineered for high-efficiency cooling, the 42W30 maintains the ideal superheat across the evaporator coil, preventing liquid slugging and protecting the compressor in demanding duty cycles.
This Lennox expansion valve is a direct-fit component for various Lennox and Allied units, including KGA036 and KGA048 series rooftop systems. As a non-bleed port TXV, it is optimized for high-SEER applications where tight refrigerant control is mandatory for peak SEER2 performance. Its balanced port construction compensates for changes in head pressure, ensuring consistent R410A refrigerant flow regardless of outdoor ambient fluctuations. For field installations, technicians should utilize a wet rag or heat sink on the valve body and sensing bulb during the brazing process to maintain internal integrity.
Key Benefits
- Compatible with 4-ton R410A air conditioning and heat pump systems.
- Features 3/8" x 1/2" ODF sweat connections for secure, permanent brazed joints.
- OEM Lennox 42W30 replacement ensures exact mechanical fit and factory-spec performance.
- Maintains precise evaporative superheat to maximize system efficiency and prevent compressor damage.
Common Questions
Is the 42W30 compatible with R22 systems?
No, this valve is specifically calibrated for the pressure-temperature characteristics of R410A refrigerant and should not be used in R22 applications.
What are the connection sizes for this 4-ton TXV?
The valve utilizes a 3/8" ODF inlet and a 1/2" ODF outlet, making it standard for many 4-ton HVAC systems.
Does this valve require an external equalizer line?
Yes, this is an internally/externally equalized valve depending on the specific kit configuration; the 42W30 typically utilizes an external equalizer to account for pressure drops across the distributor.
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.
Product Information
Product Information
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Description
Ensure precise refrigerant metering with the Lennox 42W30 TXV, a high-performance 4-ton thermostatic expansion valve designed specifically for R410A systems. This OEM replacement (part number 100679-16) features 3/8" x 1/2" ODF brazed connections, providing a robust, leak-resistant interface for standard liquid and suction lines. Engineered for high-efficiency cooling, the 42W30 maintains the ideal superheat across the evaporator coil, preventing liquid slugging and protecting the compressor in demanding duty cycles.
This Lennox expansion valve is a direct-fit component for various Lennox and Allied units, including KGA036 and KGA048 series rooftop systems. As a non-bleed port TXV, it is optimized for high-SEER applications where tight refrigerant control is mandatory for peak SEER2 performance. Its balanced port construction compensates for changes in head pressure, ensuring consistent R410A refrigerant flow regardless of outdoor ambient fluctuations. For field installations, technicians should utilize a wet rag or heat sink on the valve body and sensing bulb during the brazing process to maintain internal integrity.
Key Benefits
- Compatible with 4-ton R410A air conditioning and heat pump systems.
- Features 3/8" x 1/2" ODF sweat connections for secure, permanent brazed joints.
- OEM Lennox 42W30 replacement ensures exact mechanical fit and factory-spec performance.
- Maintains precise evaporative superheat to maximize system efficiency and prevent compressor damage.
Common Questions
Is the 42W30 compatible with R22 systems?
No, this valve is specifically calibrated for the pressure-temperature characteristics of R410A refrigerant and should not be used in R22 applications.
What are the connection sizes for this 4-ton TXV?
The valve utilizes a 3/8" ODF inlet and a 1/2" ODF outlet, making it standard for many 4-ton HVAC systems.
Does this valve require an external equalizer line?
Yes, this is an internally/externally equalized valve depending on the specific kit configuration; the 42W30 typically utilizes an external equalizer to account for pressure drops across the distributor.
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.
