Lennox S40 Smart Thermostat for Communicating Systems

The Lennox S40 Smart Thermostat is the ultimate solution for optimal comfort, performance, and efficiency. It connects to all Lennox communicating products, automatically configuring and controlling your heating/cooling system. Enjoy hassle-free setup with model and serial number recognition. This thermostat maintains efficient operating conditions by receiving information from digital controls and the Pure Air. It also supports conventional HVAC systems and offers Smart Zoning capabilities.

With a user-friendly touchscreen, multiple schedules, Smart Away feature, live weather data, and easy installation via the Lennox Smart Technician app, this thermostat ensures a personalized and convenient experience. Troubleshooting, system warnings, and maintenance alerts are displayed on the intuitive interface. The S40 Smart Thermostat is compatible with most 24VAC furnaces, air conditioners, air handlers, and heat pumps, providing a complete total-comfort system.

To enhance your home comfort, the S40 Smart Thermostat is compatible with advanced accessories like the Smart Room Sensor, Air Quality Monitor, and Wireless Extender. The 7" capacitive touchscreen display features a screen resolution of 1280 x 800, a 16:9 screen ratio, and 72dpi dots per inch.

The Lennox S40 Smart Thermostat comes with a hassle-free 10-year warranty coverage against any manufacturing defects or malfunctions. To maintain the warranty validity, it is necessary to hire a certified HVAC installer for the proper installation. Failure to use a professional HVAC installer may void the warranty. If the thermostat is not professionally installed, the item cannot be returned or refunded. Instructions for warranty registration are included in the box.

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