Free yourself with intuitive control
Get unmatched convenience and control over your home environment with the Comfort Sync® A3 Ultra-Smart Thermostat.Explore the Comfort Sync® A3
This fully intelligent thermostat syncs with your daily schedule, so you can spend less time tinkering with settings, and more time enjoying your home.
Access your home's temperature control from your smart phone with the Comfort Sync® app and enjoy voice-activated convenience with Amazon Alexa1 and Google Assistant2 devices.
Comfort Sync® Zoning
Get targeted heating and cooling to up to four different areas of your home, helping reduce energy use and deliver personalized temperatures for your whole family.
Built smarter to last longer
These true variable speed systems run on longer, more efficient cycles to reduce wear and help your system last longer. The Comfort Sync® A3 Ultra-Smart Thermostat communicates with each component, making minute adjustments to ensure your entire system is always working in harmony for your ideal environment. Plus, it sends regular maintenance reminders to your smart phone, while also providing easy-to-access diagnostic information for dealers, which can mean fewer—and faster—maintenance calls.