Lennox 11Y29 Expansion Valve
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Lennox 11Y29 Expansion Valve

Lennox 11Y29 Expansion Valve

The Lennox 11Y29 Expansion Valve is a high-precision 3-ton R410A TXV engineered for critical refrigerant metering in residential and light commercial evaporators. This OEM Lennox 104413-01 thermal expansion valve utilizes a balanced port design to maintain a static superheat of 5.54°F, ensuring stable system operation across varying load conditions. Designed with sweat solder connections and a 132.81 PSIG calibration point, it facilitates a leak-proof interface and protects the compressor from liquid slugging. Whether you are performing a 1-to-1 swap on a Lennox air handler or upgrading a compatible 3-ton R410A HVAC system, this valve provides the responsive diaphragm action needed to optimize evaporator flooding and maximize heat transfer efficiency. Its rugged construction and 1.25 lb compact footprint make it a standard choice for contractors requiring reliable refrigerant flow control in high-efficiency cooling applications.

Key Benefits
  • Precise Superheat Control: Pre-calibrated at 132.81 PSIG to ensure optimal evaporator performance and 13 SEER+ efficiency.
  • Balanced Port Design: Compensates for changes in head pressure, providing consistent refrigerant flow even in extreme ambient temperatures.
  • R410A Compatibility: Specifically valved for high-pressure R410A refrigerant systems with a 3-nominal ton capacity.
  • Durable Construction: Features high-grade materials and a sensitive diaphragm for rapid response to suction line temperature changes.
  • OEM Reliability: Direct Lennox 11Y29 replacement ensures factory-spec fitment and prevents the performance loss associated with generic aftermarket valves.
Common Questions

Is the Lennox 11Y29 compatible with R22 systems?
No, this valve is strictly calibrated for R410A refrigerant. Using it with R22 will lead to improper superheat and potential compressor failure.

Does this TXV feature a check valve for heat pump applications?
Yes, the 104413-01 model includes internal check valve functionality, making it suitable for both cooling-only and heat pump evaporator coils.

What are the connection sizes for the 11Y29?
This 3-ton expansion valve typically utilizes standard sweat connections; always confirm your line set diameters or use reducers to match existing distributor or liquid line sizing.

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.

$46.77

Original: $133.64

-65%
Lennox 11Y29 Expansion Valve

$133.64

$46.77

Lennox 11Y29 Expansion Valve

The Lennox 11Y29 Expansion Valve is a high-precision 3-ton R410A TXV engineered for critical refrigerant metering in residential and light commercial evaporators. This OEM Lennox 104413-01 thermal expansion valve utilizes a balanced port design to maintain a static superheat of 5.54°F, ensuring stable system operation across varying load conditions. Designed with sweat solder connections and a 132.81 PSIG calibration point, it facilitates a leak-proof interface and protects the compressor from liquid slugging. Whether you are performing a 1-to-1 swap on a Lennox air handler or upgrading a compatible 3-ton R410A HVAC system, this valve provides the responsive diaphragm action needed to optimize evaporator flooding and maximize heat transfer efficiency. Its rugged construction and 1.25 lb compact footprint make it a standard choice for contractors requiring reliable refrigerant flow control in high-efficiency cooling applications.

Key Benefits
  • Precise Superheat Control: Pre-calibrated at 132.81 PSIG to ensure optimal evaporator performance and 13 SEER+ efficiency.
  • Balanced Port Design: Compensates for changes in head pressure, providing consistent refrigerant flow even in extreme ambient temperatures.
  • R410A Compatibility: Specifically valved for high-pressure R410A refrigerant systems with a 3-nominal ton capacity.
  • Durable Construction: Features high-grade materials and a sensitive diaphragm for rapid response to suction line temperature changes.
  • OEM Reliability: Direct Lennox 11Y29 replacement ensures factory-spec fitment and prevents the performance loss associated with generic aftermarket valves.
Common Questions

Is the Lennox 11Y29 compatible with R22 systems?
No, this valve is strictly calibrated for R410A refrigerant. Using it with R22 will lead to improper superheat and potential compressor failure.

Does this TXV feature a check valve for heat pump applications?
Yes, the 104413-01 model includes internal check valve functionality, making it suitable for both cooling-only and heat pump evaporator coils.

What are the connection sizes for the 11Y29?
This 3-ton expansion valve typically utilizes standard sweat connections; always confirm your line set diameters or use reducers to match existing distributor or liquid line sizing.

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.

Product Information

Shipping & Returns

Description

The Lennox 11Y29 Expansion Valve is a high-precision 3-ton R410A TXV engineered for critical refrigerant metering in residential and light commercial evaporators. This OEM Lennox 104413-01 thermal expansion valve utilizes a balanced port design to maintain a static superheat of 5.54°F, ensuring stable system operation across varying load conditions. Designed with sweat solder connections and a 132.81 PSIG calibration point, it facilitates a leak-proof interface and protects the compressor from liquid slugging. Whether you are performing a 1-to-1 swap on a Lennox air handler or upgrading a compatible 3-ton R410A HVAC system, this valve provides the responsive diaphragm action needed to optimize evaporator flooding and maximize heat transfer efficiency. Its rugged construction and 1.25 lb compact footprint make it a standard choice for contractors requiring reliable refrigerant flow control in high-efficiency cooling applications.

Key Benefits
  • Precise Superheat Control: Pre-calibrated at 132.81 PSIG to ensure optimal evaporator performance and 13 SEER+ efficiency.
  • Balanced Port Design: Compensates for changes in head pressure, providing consistent refrigerant flow even in extreme ambient temperatures.
  • R410A Compatibility: Specifically valved for high-pressure R410A refrigerant systems with a 3-nominal ton capacity.
  • Durable Construction: Features high-grade materials and a sensitive diaphragm for rapid response to suction line temperature changes.
  • OEM Reliability: Direct Lennox 11Y29 replacement ensures factory-spec fitment and prevents the performance loss associated with generic aftermarket valves.
Common Questions

Is the Lennox 11Y29 compatible with R22 systems?
No, this valve is strictly calibrated for R410A refrigerant. Using it with R22 will lead to improper superheat and potential compressor failure.

Does this TXV feature a check valve for heat pump applications?
Yes, the 104413-01 model includes internal check valve functionality, making it suitable for both cooling-only and heat pump evaporator coils.

What are the connection sizes for the 11Y29?
This 3-ton expansion valve typically utilizes standard sweat connections; always confirm your line set diameters or use reducers to match existing distributor or liquid line sizing.

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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