Description
The Lennox 13Y20 is an OEM thermostatic expansion valve (TXV) engineered for 4-ton outdoor air conditioning systems operating on R-410A refrigerant. Designed as a direct Lennox replacement component, this TXV ensures precise refrigerant metering to maintain optimal system efficiency, protect the compressor, and deliver consistent cooling performance across a wide range of operating conditions.
Product Overview
Thermostatic expansion valves regulate the flow of liquid refrigerant into the evaporator coil by responding to suction line superheat. The Lennox 13Y20 is factory-matched for 4-ton R-410A outdoor units, making it the ideal choice for technicians performing a like-for-like replacement on compatible Lennox systems. Using an OEM-specified TXV helps maintain rated system SEER performance and avoids the guesswork of aftermarket substitutions.
Key Features
- OEM Lennox replacement TXV — ensures compatibility with matched 4-ton systems
- Designed for R-410A refrigerant — the industry-standard environmentally preferred refrigerant
- 4-ton capacity rating — sized for residential and light commercial applications
- Outdoor unit application — engineered for installation in the condensing unit refrigerant circuit
- Precise superheat control — maintains proper refrigerant metering for maximum efficiency and compressor protection
- Durable construction — built to Lennox OEM standards for long service life in demanding outdoor environments
Why Use an OEM TXV?
Using the correct OEM-specified expansion valve is critical to maintaining system efficiency ratings, warranty compliance, and reliable operation. The Lennox 13Y20 is engineered to exact factory specifications, ensuring proper superheat settings, compatible port sizing, and refrigerant flow rates that match the system’s design parameters. Substituting an incorrectly rated valve can lead to compressor damage, reduced efficiency, and premature system failure.
Application
- Compatible system type: R-410A outdoor condensing units
- Nominal capacity: 4 tons
- Refrigerant: R-410A
- Installation location: Outdoor unit
- Replacement type: OEM direct replacement
Specifications
- Brand: Lennox
- Part Number / SKU: 13Y20
- Refrigerant Type: R-410A
- System Capacity: 4 Ton
- Valve Type: Thermostatic Expansion Valve (TXV)
- Application: Outdoor Unit
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