Lennox S30, Touchscreen Communication Programmable Thermostat, WiFi, Universal 3 Heat/2 Cool

Cat # : 19V30

Model/Part # : S30

This product is used in several different models.

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Brand Lennox
Catalog Number 19V30
Model/Part Number S30
Minimum Order Quantity 0.0
Base Unit of Measure Unit(S)
Product Depth 1 IN
Product Height 5 IN
Product Width 7.25 IN
Gross Weight 3.15 LB
Family iComfort S30
Family iComfort
Type Touchscreen Communication Programmable Thermostat
Programs per Week 7 Day
Changeover Auto changeover
Wi-Fi Enabled WiFi
Intelligent Recovery Intelligent Recovery
Product Height 5 Inch
Product Width 7.25 Inch
Product Depth 1 Inch
Stages Universal 3 Heat/2 Cool

Product Overview

Lennox iComfort® S30 Ultra Smart Residential Communicating Control System

The iComfort® S30 Ultra Smart thermostat recognizes and connects to all iComfort® Communicating products to automatically configure and control the heating/cooling system (based on user-specified settings) for the highest level of comfort, performance and efficiency. Thermostat also recognizes model and serial number information for iComfort® Communicating products to simplify system setup

  • Advanced iComfort® controls in specific heating and cooling units and the PureAir™ S Air Purification System communicate information about various operating parameters to the thermostat to constantly maintain the most efficient operating conditions possible
  • Additional conventional (not iComfort® Communicating) indoor air quality comfort products (Healthy Climate® Humidifiers, Humiditrol® Enhanced Dehumidification Accessory, Healthy Climate® HRV/ERV Heat/Energy Recovery Ventilators, Fresh Air Damper, Healthy Climate® Germicidal Lights) can be added to the system for a complete total-comfort system
  • Conventional outdoor units (not iComfort® Communicating) can easily be added and controlled by the iComfort S30 Ultra-Smart thermostat
  • Conventional HVAC systems (not iComfort® Communicating) can be controlled by the iComfort S30 Ultra-Smart thermostat with the addition of the optional iComfort® Equipment Interface Module (EIM)
  • Optional iHarmony® Zoning System (for specific HVAC systems) allows wholehome zoning (up to 4 zones) with complete control from the iComfort S30 Ultra-Smart thermostat and individual In-Zone Thermostats
  • A simple easy-to-use touchscreen allows complete system configuration. Scheduled maintenance alerts, system warnings and troubleshooting are also displayed on thermostat screen
  • Up to four separate schedules are available plus Schedule IQ™
  • One-Touch Away Mode - A quick and easy way to set the cooling and heating setpoints while away
  • Smart Away™ - Schedule IQ™ uses geo-fencing technology to determine when the homeowner is within a predetermined distance from the home to operate the system when leaving, away and arriving
  • Weather-On-Demand - Live up-to-date weather data and seven-day forecasts
  • Easy to read 7 in. high definition color display (measured diagonally)
  • Installer setup screens allow quick and simple system configuration without a manual
  • Installer can also run tests on complete system or individual components for easy maintenance and troubleshooting
  • Service Dashboard features online real-time monitoring of installed iComfort systems
  • Serial communications bus (RSBus), with less wiring than a conventional heating/cooling system, allows system communication
  • Uses 4-wire standard thermostat wiring. We highly recommend using 18 - 22AWG shielded thermostat cable for communications terminals (I+ and I-) which will help eliminate any noise interference.
  • High Definition Color Display with Subbase, Smart Hub Controller, wallplate (for retrofit installations) furnished for easy installation

Note: The Lennox iComfort® S30 Ultra-Smart thermostat with Equipment Interface Module (10T50) will work with most 24VAC furnaces, air conditioners, air handlers and heat pumps (up to 3 stages of heat and 2 stages of cooling), EXCEPT IT WILL NOT WORK with any brand of communicating HVAC equipment other than LENNOX®.


iComfort S30 kit includes S30 thermostat display and smart hub.  Former Cat # 12U67 subbed to 19V30 (the difference between the 12U67 S30 kit and the 19V30 S30 kit is that the thermostat magnetic wall mount plate has been removed. Wires are connected directly to the thermostat and it can’t be removed from the wall once connected.)

*** Important Warranty Note***

10-year warranty valid on iComfort S30 thermostats installed on or after 10/01/2021.  See warranty documents for details on how to file claim. 
The warranty on the iComfort S30 thermostat does not cover the replacement of the entire 19V30 iComfort S30 kit, unless individual repair parts are not available. 
17H17: S30 and E30 display repair part kit

15X98: iComfort S30 smart hub (Ver 2.0)

Manuals in a single box w/ artwork

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