XL850Under Deluxe Programmable

XL850

Control your variable speed or communicating system with our new smart control.

Estimated price

Price depends on location, installation fees and additional components. Contact a dealer for pricing info.

Make a selection

Deluxe Programmable Thermostats

Your comfort, optimized

XL1050
Deluxe Programmable Thermostats

Your comfort, optimized

XL950
Deluxe Programmable Thermostats

Your comfort, optimized

XL850
Deluxe Programmable Thermostats

Your comfort, optimized

XL824
Non-Programmable Thermostats

Simple system control

Honeywell 5000

Perfect air in perfect harmony

Connect your ComfortLink™ II XL850 control to a matched Trane system for complete, seamless comfort. Every component is designed to work in harmony with the others, optimizing your energy use over time.

Contact and control

Not only does the ComfortLink™ II XL850 monitor indoor and outdoor temperatures, so you can adjust your system to be energy-efficient, but it also tells you when it’s time to change a filter or schedule routine maintenance.

Key features

** Requires high speed router and connection to Nexia™ Home Intelligence.

    • 7-day Programmable
    • 5 heat/ 2 Cool
    • Zoning Capability: No
    • Screen size: 4.3”

    Characteristics ComfortLink™ II XL1050 ComfortLink™ II XL850 XL824 XL624
    Nexia™ Remote Climate Access
    Nexia™ Wireless Connectivity Wi-Fi Wi-Fi Wi-Fi Z-Wave®
    Nexia™ Bridge Built-In Built-In Built-In * See Below
    Compatible with Communicating and Variable Speed Systems
    Touchscreen 7″ high definition full color 4.3″ full color 4.3″ full color 4.3″ full color
    Programmable (days/schedules per day) 7 // 4 7 // 6 7 // 6 7 // 4
    Heat/Cool Stages 5 // 2 5 // 2 5 // 2 4 // 2
    Adjust Home Temperature Remotely
    Upgradable Software
    Nexia™ Diagnostics
    * Required for remote access and when adding Z-Wave devices record