Lennox 79J75 Sweat Expansion Equal Thermal Expansion Valve 3/8 InchX1/2 Inch

The Lennox 79J75 is a sweat connection thermal expansion valve (TXV) used in HVAC systems, specifically in air conditioners and heat pumps. This valve regulates the flow of refrigerant based on the evaporator temperature, ensuring optimal system performance and efficiency. Here's how it works: The TXV senses the temperature leaving the evaporator coil. When the temperature gets too cold, the valve restricts refrigerant flow, preventing the evaporator from over-cooling. Conversely, as the temperature rises, the valve opens wider, allowing more refrigerant to flow and absorb heat effectively. The Lennox 79J75 features sweat connections, a common brazing method for joining copper pipes, with a size range of 1/2 inch to 3 inches. It operates on a standard 24-volt electrical signal and is compatible with both 50Hz and 60Hz electrical grids. Overall, the Lennox 79J75 TXV plays a vital role in maintaining efficient refrigerant circulation and maximizing the comfort and efficiency of your HVAC system.