








Please Read below & Description about the compatibility of your System before buying. This is not returnable & no Refund will be issued. Compatible Trane AC & Heat Pump Systems: TruComfort Variable Speed Units: – XV20i (Model series 4TTV0 or 5TTV0) – XV18 (Model series 4TTV8 or 5TTV8) – XV19 (Low Profile/Side Discharge) Hyperion – Hyperion Air Handlers: Models like the TAM9 Variable Speed Furnaces: – Models like the S9V2 or XC95m. TEM8 Series: – XV series outdoor units XR17 (Model series 4TTR7 or 5TTR7) — – These often require a specific communicating indoor unit or a BAY24VRPAC52DB 24V relay panel to function with the XL850’s digital features.
See images for field Wiring Connection: RS1: (Remote Sensor) Terminals to connect an optional wired indoor remote temperature sensor ODT: (Outdoor Temperature Sensor) Terminals to connect wired outdoor air temperature sensor D: (Data) ComfortLink II protocol Communication wire for digital signals R: (Power). 24-volt AC current from transformer to the thermostat. BC: (24V Common). “B” or “BC” stands for the Common return path for the 24V power.
Vibrant 4.3″ Color Touchscreen – Features an easy-to-use, full-color touchscreen interface for quick access to settings, schedules, and diagnostics. The touchscreen enhances user experience, making it simple to adjust comfort levels at a glance.
Integrated dehumdification solutions (IDS). Enhanced Airflow Control. Built-In Trane Diagnostics – Opt-in to Trane’s remote diagnostics feature, allowing your dealer to monitor real-time HVAC system performance. Alerts are sent to dealers for any issues, and remote access provides troubleshooting assistance to keep your system running smoothly.
Wi-Fi and Ethernet Connectivity – Provides flexible connection options, so you can access your thermostat remotely from your smartphone, tablet, or laptop. Easily adjust temperature, humidity, and schedules from anywhere for optimal convenience.
7-Day Programmable Scheduling – Customize up to seven different schedules to fit your weekly routine. With automatic adjustments, you’ll experience personalized comfort and energy savings around the clock.
Enhanced Home Automation with Built-In Z-Wave Bridge – Integrate seamlessly with other smart devices in your home, thanks to the thermostat’s built-in Z-Wave bridge, allowing comprehensive control of lighting, security, and more from one interface.
Real-Time Temperature & Humidity Optimization – Utilizes a network of sensors to provide precise control over temperature and humidity, adapting to your needs in real-time to enhance comfort while maintaining energy efficiency.
Remote Accessibility and Smart Alerts – Receive alerts for filter changes, maintenance, and humidity adjustments directly on your mobile device. Remote access ensures you can manage your HVAC system effortlessly, even when away from home.
Energy-Efficient Design for Reduced Utility Costs – The ComfortLink II XL850 smart thermostat optimizes energy use by automatically adjusting settings based on schedules, ambient conditions, and real-time performance, helping you save on energy bills while staying comfortable year-round.
$399.00