The Lennox 12U91 (OEM Part No. 100679-53) Expansion Valve is a factory-authorized thermostatic expansion valve (TXV) engineered for superior control of refrigerant flow in high-capacity commercial HVAC systems. Rated for 20-ton applications, this valve is optimized for performance, ensuring efficient superheat regulation and system balance across a wide range of operating conditions.Key Features:
- Capacity: 20 Tons – ideal for large commercial and industrial HVAC systems
- Function: Modulates refrigerant flow to the evaporator based on temperature and pressure, improving system efficiency
- Application: Designed for use with Lennox systems requiring precision TXV regulation
- Construction: Durable materials ensure long-term reliability under demanding conditions
- OEM Replacement: Direct replacement for original Lennox part number 100679-53
