Description
The Lennox 11Y29 is an OEM thermostatic expansion valve (TXV) engineered for 3-ton R-410A air conditioning and heat pump systems. Designed as a direct factory replacement, this valve precisely meters refrigerant flow into the evaporator coil, maintaining optimal superheat and maximizing system efficiency across varying load conditions.
Key Features
- OEM Lennox replacement thermostatic expansion valve
- Sized for 3-ton (36,000 BTU/hr) R-410A refrigerant systems
- Precise refrigerant metering for consistent superheat control
- Helps restore peak system efficiency and cooling capacity
- Direct drop-in replacement for compatible Lennox equipment
- Durable construction for long-term, reliable operation
Application
This expansion valve is intended for use in compatible Lennox residential and light commercial split-system air conditioners and heat pumps utilizing R-410A refrigerant. Always verify compatibility with the specific equipment model before installation. Installation should be performed by a licensed HVAC technician in accordance with all applicable codes and manufacturer guidelines.
Why Replace Your TXV?
- A faulty TXV can cause poor cooling, icing on the evaporator coil, or high superheat readings
- Restoring proper refrigerant metering improves energy efficiency and system longevity
- Using a genuine Lennox OEM part ensures compatibility and maintains equipment warranty compliance
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