Lennox 64W49 TXV
For service technicians and mechanical contractors maintaining 4-ton Lennox air conditioning units, the Lennox 64W49 Thermal Expansion Valve is a critical OEM component for precise refrigerant metering. This TXV with 30-inch capillary tube is engineered to regulate flow with a pressure rating of 94 +/- 2 PSIG, ensuring the evaporator coil maintains the correct superheat for optimal heat exchange and compressor protection. Featuring a 3/8 inch x 1/2 inch ODF connection, this valve provides a secure, leak-resistant sweat fit into the liquid line and evaporator inlet. Designed specifically for compatibility with 4-ton residential and commercial systems, the Lennox 100679-38 replacement valve replaces older or fouled metering devices to restore system SEER ratings and cooling capacity. The balance port design allows for stable operation across a wide range of ambient temperatures, making it a reliable choice for professional HVAC expansion valve replacement in high-demand Lennox cooling applications.
Key Benefits:
- Lennox OEM quality ensures exact fitment and factory-spec performance for 4-ton evaporator coils.
- Precision refrigerant flow control optimizes system efficiency and prevents liquid slugging at the compressor.
- Robust ODF connection (3/8" inlet, 1/2" outlet) facilitates standard brazing procedures for a reliable seal.
- Integrated 30-inch capillary tube allows for flexible sensing bulb placement on the suction line.
Common Questions:
What are the symptoms of a failing Lennox 64W49 TXV?
Common indicators include evaporator coil icing, high superheat readings, or the system failing to reach set-point temperatures despite proper refrigerant charge levels.
Is the sensing bulb included with this thermal expansion valve?
Yes, this 4-ton expansion valve includes the capillary tube and integrated sensing bulb required to monitor suction line temperature and modulate refrigerant flow.
Can this TXV be used with R-410A refrigerant?
This specific model is calibrated for the pressure ranges typical of Lennox 4-ton R-410A cooling systems; always verify the PSIG rating on the existing valve body before installation.
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: $122.35
-65%$122.35
$42.82Lennox 64W49 TXV
For service technicians and mechanical contractors maintaining 4-ton Lennox air conditioning units, the Lennox 64W49 Thermal Expansion Valve is a critical OEM component for precise refrigerant metering. This TXV with 30-inch capillary tube is engineered to regulate flow with a pressure rating of 94 +/- 2 PSIG, ensuring the evaporator coil maintains the correct superheat for optimal heat exchange and compressor protection. Featuring a 3/8 inch x 1/2 inch ODF connection, this valve provides a secure, leak-resistant sweat fit into the liquid line and evaporator inlet. Designed specifically for compatibility with 4-ton residential and commercial systems, the Lennox 100679-38 replacement valve replaces older or fouled metering devices to restore system SEER ratings and cooling capacity. The balance port design allows for stable operation across a wide range of ambient temperatures, making it a reliable choice for professional HVAC expansion valve replacement in high-demand Lennox cooling applications.
Key Benefits:
- Lennox OEM quality ensures exact fitment and factory-spec performance for 4-ton evaporator coils.
- Precision refrigerant flow control optimizes system efficiency and prevents liquid slugging at the compressor.
- Robust ODF connection (3/8" inlet, 1/2" outlet) facilitates standard brazing procedures for a reliable seal.
- Integrated 30-inch capillary tube allows for flexible sensing bulb placement on the suction line.
Common Questions:
What are the symptoms of a failing Lennox 64W49 TXV?
Common indicators include evaporator coil icing, high superheat readings, or the system failing to reach set-point temperatures despite proper refrigerant charge levels.
Is the sensing bulb included with this thermal expansion valve?
Yes, this 4-ton expansion valve includes the capillary tube and integrated sensing bulb required to monitor suction line temperature and modulate refrigerant flow.
Can this TXV be used with R-410A refrigerant?
This specific model is calibrated for the pressure ranges typical of Lennox 4-ton R-410A cooling systems; always verify the PSIG rating on the existing valve body before installation.
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
For service technicians and mechanical contractors maintaining 4-ton Lennox air conditioning units, the Lennox 64W49 Thermal Expansion Valve is a critical OEM component for precise refrigerant metering. This TXV with 30-inch capillary tube is engineered to regulate flow with a pressure rating of 94 +/- 2 PSIG, ensuring the evaporator coil maintains the correct superheat for optimal heat exchange and compressor protection. Featuring a 3/8 inch x 1/2 inch ODF connection, this valve provides a secure, leak-resistant sweat fit into the liquid line and evaporator inlet. Designed specifically for compatibility with 4-ton residential and commercial systems, the Lennox 100679-38 replacement valve replaces older or fouled metering devices to restore system SEER ratings and cooling capacity. The balance port design allows for stable operation across a wide range of ambient temperatures, making it a reliable choice for professional HVAC expansion valve replacement in high-demand Lennox cooling applications.
Key Benefits:
- Lennox OEM quality ensures exact fitment and factory-spec performance for 4-ton evaporator coils.
- Precision refrigerant flow control optimizes system efficiency and prevents liquid slugging at the compressor.
- Robust ODF connection (3/8" inlet, 1/2" outlet) facilitates standard brazing procedures for a reliable seal.
- Integrated 30-inch capillary tube allows for flexible sensing bulb placement on the suction line.
Common Questions:
What are the symptoms of a failing Lennox 64W49 TXV?
Common indicators include evaporator coil icing, high superheat readings, or the system failing to reach set-point temperatures despite proper refrigerant charge levels.
Is the sensing bulb included with this thermal expansion valve?
Yes, this 4-ton expansion valve includes the capillary tube and integrated sensing bulb required to monitor suction line temperature and modulate refrigerant flow.
Can this TXV be used with R-410A refrigerant?
This specific model is calibrated for the pressure ranges typical of Lennox 4-ton R-410A cooling systems; always verify the PSIG rating on the existing valve body before installation.
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.
