The Lennox 24Z17 L3532U, also known as the ComfortSense 3000, is a programmable thermostat designed to enhance comfort and efficiency in your home's HVAC system. This user-friendly unit features a large, easy-to-read display and an intuitive interface for setting temperatures and creating personalized schedules. https://www.partshnc.com/24z17-lennox-comfortsense-3000-l3532u