Lennox 52W74 TXV Valve
The Lennox 52W74 TXV Valve is a critical metered expansion device engineered for high-tonnage R410A refrigerant systems. Designed to maintain precise superheat control at the evaporator, this thermostatic expansion valve (TXV) ensures optimal heat transfer and prevents liquid slugging, which is essential for protecting the compressor in commercial HVACR applications. With a robust 10-ton capacity, the 52W74 utilizes a threaded inlet and outlet for secure, leak-resistant connection in the field. As an OEM Lennox replacement part, it guarantees exact fit and performance characteristics, matching the original factory requirements for pressure drop and flow modulation. Whether you are performing a full system refrigerant recharge or troubleshooting an evaporator freeze-up, the Lennox 52W74 provides the reliability seasoned technicians expect. Its 24 VAC operation and 50/60 Hz frequency compatibility make it a versatile choice for a wide range of Lennox commercial units and heavy-duty residential splits.
Key Benefits- Precision Metering: Delivers exact R410A flow control to maximize cooling efficiency and maintain stable evaporator temperatures.
- High Capacity Support: Rated for systems up to 10 tons, making it suitable for larger commercial and light industrial cooling equipment.
- Compressor Protection: Actively monitors suction line temperature to prevent unevaporated refrigerant from reaching the compressor.
- Simplified Installation: Features threaded connections that reduce the need for brazing in tight spaces, lowering the risk of thermal damage to nearby components.
- OEM Reliability: Direct Lennox 52W74 expansion valve replacement ensures the unit operates within its original ASHRAE design parameters.
What are the signs of a failing 52W74 TXV?
Technicians typically look for high superheat, low suction pressure, or evaporator icing. If the bulb loses its charge, the valve may stick closed, causing the system to pump down or trip on low-pressure cutouts.
Is the 52W74 compatible with R22 systems?
No. This valve is specifically calibrated for the pressure-temperature relationship of R410A refrigerant. Using it with R22 will lead to improper metering and potential system failure.
Does this valve include the sensing bulb?
Yes, the Lennox 52W74 is a complete thermostatic assembly including the power head and sensing bulb for accurate suction line feedback.
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.
Lennox 52W74 TXV Valve
The Lennox 52W74 TXV Valve is a critical metered expansion device engineered for high-tonnage R410A refrigerant systems. Designed to maintain precise superheat control at the evaporator, this thermostatic expansion valve (TXV) ensures optimal heat transfer and prevents liquid slugging, which is essential for protecting the compressor in commercial HVACR applications. With a robust 10-ton capacity, the 52W74 utilizes a threaded inlet and outlet for secure, leak-resistant connection in the field. As an OEM Lennox replacement part, it guarantees exact fit and performance characteristics, matching the original factory requirements for pressure drop and flow modulation. Whether you are performing a full system refrigerant recharge or troubleshooting an evaporator freeze-up, the Lennox 52W74 provides the reliability seasoned technicians expect. Its 24 VAC operation and 50/60 Hz frequency compatibility make it a versatile choice for a wide range of Lennox commercial units and heavy-duty residential splits.
Key Benefits- Precision Metering: Delivers exact R410A flow control to maximize cooling efficiency and maintain stable evaporator temperatures.
- High Capacity Support: Rated for systems up to 10 tons, making it suitable for larger commercial and light industrial cooling equipment.
- Compressor Protection: Actively monitors suction line temperature to prevent unevaporated refrigerant from reaching the compressor.
- Simplified Installation: Features threaded connections that reduce the need for brazing in tight spaces, lowering the risk of thermal damage to nearby components.
- OEM Reliability: Direct Lennox 52W74 expansion valve replacement ensures the unit operates within its original ASHRAE design parameters.
What are the signs of a failing 52W74 TXV?
Technicians typically look for high superheat, low suction pressure, or evaporator icing. If the bulb loses its charge, the valve may stick closed, causing the system to pump down or trip on low-pressure cutouts.
Is the 52W74 compatible with R22 systems?
No. This valve is specifically calibrated for the pressure-temperature relationship of R410A refrigerant. Using it with R22 will lead to improper metering and potential system failure.
Does this valve include the sensing bulb?
Yes, the Lennox 52W74 is a complete thermostatic assembly including the power head and sensing bulb for accurate suction line feedback.
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 52W74 TXV Valve is a critical metered expansion device engineered for high-tonnage R410A refrigerant systems. Designed to maintain precise superheat control at the evaporator, this thermostatic expansion valve (TXV) ensures optimal heat transfer and prevents liquid slugging, which is essential for protecting the compressor in commercial HVACR applications. With a robust 10-ton capacity, the 52W74 utilizes a threaded inlet and outlet for secure, leak-resistant connection in the field. As an OEM Lennox replacement part, it guarantees exact fit and performance characteristics, matching the original factory requirements for pressure drop and flow modulation. Whether you are performing a full system refrigerant recharge or troubleshooting an evaporator freeze-up, the Lennox 52W74 provides the reliability seasoned technicians expect. Its 24 VAC operation and 50/60 Hz frequency compatibility make it a versatile choice for a wide range of Lennox commercial units and heavy-duty residential splits.
Key Benefits- Precision Metering: Delivers exact R410A flow control to maximize cooling efficiency and maintain stable evaporator temperatures.
- High Capacity Support: Rated for systems up to 10 tons, making it suitable for larger commercial and light industrial cooling equipment.
- Compressor Protection: Actively monitors suction line temperature to prevent unevaporated refrigerant from reaching the compressor.
- Simplified Installation: Features threaded connections that reduce the need for brazing in tight spaces, lowering the risk of thermal damage to nearby components.
- OEM Reliability: Direct Lennox 52W74 expansion valve replacement ensures the unit operates within its original ASHRAE design parameters.
What are the signs of a failing 52W74 TXV?
Technicians typically look for high superheat, low suction pressure, or evaporator icing. If the bulb loses its charge, the valve may stick closed, causing the system to pump down or trip on low-pressure cutouts.
Is the 52W74 compatible with R22 systems?
No. This valve is specifically calibrated for the pressure-temperature relationship of R410A refrigerant. Using it with R22 will lead to improper metering and potential system failure.
Does this valve include the sensing bulb?
Yes, the Lennox 52W74 is a complete thermostatic assembly including the power head and sensing bulb for accurate suction line feedback.
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.
