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Lennox L40 Smart Thermostat

By Lennox International, Inc.

The Lennox L40 Smart Thermostat is a Wi-Fi-enabled thermostat designed for single-stage heating and cooling systems. Key features include:

Smart Away Mode: Automatically adjusts heating and cooling based on occupancy, saving energy when the home is empty.

Schedule IQ Technology: Allows users to set a single schedule and automatically adapts to changing routines.
Smart Home Integration: Compatible with Amazon Alexa, Google Assistant, and other smart home devices.

Energy Efficiency: ENERGY STAR certified, helping to reduce utility costs and qualify for local rebates.

User-Friendly Interface: Features a 4-inch color touchscreen with large, legible fonts for easy navigation.

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Product Details

  • Firmware Version 04.38.0081
  • Hardware Version 0004
  • Certificate ID CSA2592AMAT47228-24
  • Certified Date 09/24/2025
  • Product ID 0x0002
  • Vendor ID 0x1356
  • Compliance Document Download Compliance Document
  • TIS/TRP Tested Yes
  • Specification Version 1.3
  • Transport Interface Wi-Fi
  • Primary Device Type ID 0x0301

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