Description
Lennox 15W11 Indoor Coil Expansion Valve Overview
The Lennox 15W11 is a factory-engineered indoor coil expansion valve (TXV) designed as a direct OEM replacement for compatible Lennox indoor coil assemblies. By precisely metering refrigerant flow into the evaporator coil, this valve maintains the correct superheat level across a wide range of operating conditions — protecting the compressor, maximizing heat transfer efficiency, and helping the system achieve its rated capacity.
Key Features
- OEM Lennox replacement expansion valve engineered for precise refrigerant metering
- Maintains optimal superheat at the evaporator coil outlet for maximum system efficiency
- Helps protect the compressor from liquid slugging by preventing refrigerant flood-back
- Direct-fit design for compatible Lennox indoor coil assemblies — no field modification required
- Durable construction built to withstand the demands of residential and light-commercial HVAC applications
- Supports consistent system performance across varying load conditions
Why Use an OEM Expansion Valve?
Using a genuine Lennox OEM expansion valve ensures the valve is calibrated to the exact refrigerant charge, coil geometry, and operating pressures of your Lennox system. Aftermarket substitutes may not match the factory superheat setting, potentially reducing efficiency, shortening compressor life, or voiding equipment warranties. The Lennox 15W11 is the correct, confidence-inspiring choice for service technicians and contractors performing coil maintenance or system restoration.
Application
- Designed for use with compatible Lennox indoor coil assemblies
- Suitable for residential and light-commercial split-system air conditioning and heat pump applications
- Intended for installation by qualified HVAC technicians in accordance with all applicable codes and manufacturer guidelines
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