Lennox 60M99 Expansion Valve
The Lennox 60M99 Expansion Valve is a precision-engineered R-410A thermostatic expansion valve (TXV) designed to maintain the exact superheat required for optimal evaporator efficiency in Lennox HVAC systems. Engineered for high-pressure refrigerant applications, this direct-replacement Lennox TXV ensures consistent flow modulation across varying load conditions, preventing liquid slugging and protecting the compressor. HVAC contractors rely on the 60M99 valve for its reliable refrigerant metering capabilities and rugged construction, which are critical for restoring factory-spec performance in residential air conditioning and heat pump units. The 60M99 balance port TXV is designed for a secure mechanical fit and accurate thermal sensing, facilitating stable system pressures and improved seasonal energy efficiency ratios (SEER). When diagnosing refrigeration cycle issues related to evaporator coil freezing or poor heat transfer, utilizing this OEM Lennox part ensures compatibility with existing liquid line configurations and sensing bulb requirements without modification.
- Optimized Pressure Control: Maintains precise superheat settings to maximize the heat exchange rate within the evaporator coil.
- System Longevity: Prevents refrigerant floodback, significantly reducing the risk of premature compressor failure.
- OEM Compatibility: Specifically calibrated for Lennox R-410A systems, ensuring seamless integration with original equipment specifications.
- Durable Construction: Built to withstand high-cycle operations and thermal stress in demanding climate conditions.
Common HVAC Technical Questions
Is the Lennox 60M99 compatible with R-22 systems?
No, this component is specifically calibrated for the pressure-temperature characteristics of R-410A refrigerant and should not be used in R-22 legacy systems.
What are the symptoms of a failing Lennox expansion valve?
Technicians typically observe low suction pressure, high superheat readings, or frost buildup on the evaporator, indicating a restricted or stuck metering device.
Does this TXV include the internal check valve?
Yes, this model is designed for heat pump applications and includes internal bypass capabilities to allow reverse flow during the heating cycle.
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: $117.91
-65%$117.91
$41.27Lennox 60M99 Expansion Valve
The Lennox 60M99 Expansion Valve is a precision-engineered R-410A thermostatic expansion valve (TXV) designed to maintain the exact superheat required for optimal evaporator efficiency in Lennox HVAC systems. Engineered for high-pressure refrigerant applications, this direct-replacement Lennox TXV ensures consistent flow modulation across varying load conditions, preventing liquid slugging and protecting the compressor. HVAC contractors rely on the 60M99 valve for its reliable refrigerant metering capabilities and rugged construction, which are critical for restoring factory-spec performance in residential air conditioning and heat pump units. The 60M99 balance port TXV is designed for a secure mechanical fit and accurate thermal sensing, facilitating stable system pressures and improved seasonal energy efficiency ratios (SEER). When diagnosing refrigeration cycle issues related to evaporator coil freezing or poor heat transfer, utilizing this OEM Lennox part ensures compatibility with existing liquid line configurations and sensing bulb requirements without modification.
- Optimized Pressure Control: Maintains precise superheat settings to maximize the heat exchange rate within the evaporator coil.
- System Longevity: Prevents refrigerant floodback, significantly reducing the risk of premature compressor failure.
- OEM Compatibility: Specifically calibrated for Lennox R-410A systems, ensuring seamless integration with original equipment specifications.
- Durable Construction: Built to withstand high-cycle operations and thermal stress in demanding climate conditions.
Common HVAC Technical Questions
Is the Lennox 60M99 compatible with R-22 systems?
No, this component is specifically calibrated for the pressure-temperature characteristics of R-410A refrigerant and should not be used in R-22 legacy systems.
What are the symptoms of a failing Lennox expansion valve?
Technicians typically observe low suction pressure, high superheat readings, or frost buildup on the evaporator, indicating a restricted or stuck metering device.
Does this TXV include the internal check valve?
Yes, this model is designed for heat pump applications and includes internal bypass capabilities to allow reverse flow during the heating cycle.
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 60M99 Expansion Valve is a precision-engineered R-410A thermostatic expansion valve (TXV) designed to maintain the exact superheat required for optimal evaporator efficiency in Lennox HVAC systems. Engineered for high-pressure refrigerant applications, this direct-replacement Lennox TXV ensures consistent flow modulation across varying load conditions, preventing liquid slugging and protecting the compressor. HVAC contractors rely on the 60M99 valve for its reliable refrigerant metering capabilities and rugged construction, which are critical for restoring factory-spec performance in residential air conditioning and heat pump units. The 60M99 balance port TXV is designed for a secure mechanical fit and accurate thermal sensing, facilitating stable system pressures and improved seasonal energy efficiency ratios (SEER). When diagnosing refrigeration cycle issues related to evaporator coil freezing or poor heat transfer, utilizing this OEM Lennox part ensures compatibility with existing liquid line configurations and sensing bulb requirements without modification.
- Optimized Pressure Control: Maintains precise superheat settings to maximize the heat exchange rate within the evaporator coil.
- System Longevity: Prevents refrigerant floodback, significantly reducing the risk of premature compressor failure.
- OEM Compatibility: Specifically calibrated for Lennox R-410A systems, ensuring seamless integration with original equipment specifications.
- Durable Construction: Built to withstand high-cycle operations and thermal stress in demanding climate conditions.
Common HVAC Technical Questions
Is the Lennox 60M99 compatible with R-22 systems?
No, this component is specifically calibrated for the pressure-temperature characteristics of R-410A refrigerant and should not be used in R-22 legacy systems.
What are the symptoms of a failing Lennox expansion valve?
Technicians typically observe low suction pressure, high superheat readings, or frost buildup on the evaporator, indicating a restricted or stuck metering device.
Does this TXV include the internal check valve?
Yes, this model is designed for heat pump applications and includes internal bypass capabilities to allow reverse flow during the heating cycle.
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.
