1. Introduction and Overview
The Trane XL850 (model TCONT850AC52UA) is a Z-Wave Certified Static Controller designed to integrate with your HVAC system and a Z-Wave network. This device enables remote control and monitoring of your home's climate through platforms like Nexia Home Intelligence. It functions as both a thermostat and a Z-Wave controller, providing advanced control capabilities for compatible smart home devices.
Figure 1.1: Trane XL850 Controller with its packaging and included components, illustrating the complete product package.
2. Setup and Installation
Installation of the Trane XL850 Controller typically involves wiring to your HVAC system and integrating it into your Z-Wave network. It is recommended that installation be performed by a qualified HVAC professional.
2.1 Wiring
The controller requires connection to your HVAC system's low-voltage wiring. Refer to the wiring diagram provided with your specific HVAC unit and the XL850 installation guide for detailed instructions. Ensure power is disconnected before performing any wiring.
Figure 2.1: Rear view of the Trane XL850 Controller, showing the wiring terminals for connection to the HVAC system. Proper connection is crucial for functionality.
2.2 Z-Wave Network Inclusion
The Trane XL850 acts as a Z-Wave Static Controller. To integrate it into your smart home system, follow the instructions provided by your Z-Wave gateway or Nexia Home Intelligence portal for adding a new Z-Wave device. The controller will then manage other Z-Wave devices within its network.
- Ensure the controller is powered on.
- Initiate the inclusion process on your Z-Wave gateway.
- Follow the on-screen prompts on the XL850 controller to complete the inclusion.
3. Operating Instructions
The Trane XL850 Controller features an LCD display for local control and can be managed remotely via the Nexia Home Intelligence web portal or compatible mobile applications.
3.1 Local Control
Use the touch screen interface to adjust temperature setpoints, change system modes (Heat, Cool, Auto, Off), fan settings, and access system menus. Specific navigation details are available in the full user manual provided by Trane.
3.2 Remote Control via Nexia Home Intelligence
Once connected to your Z-Wave network and registered with Nexia Home Intelligence, you can:
- Adjust thermostat settings from anywhere with internet access.
- Monitor current temperature and system status.
- Create schedules for heating and cooling.
- Control other Z-Wave devices paired with the XL850 controller.
For detailed instructions on using the Nexia Home Intelligence portal, refer to the Nexia user documentation.
4. Maintenance
The Trane XL850 Controller requires minimal maintenance to ensure optimal performance.
- Cleaning: Gently wipe the screen and exterior with a soft, damp cloth. Avoid abrasive cleaners or solvents.
- Firmware Updates: Periodically check for and install firmware updates through the Nexia Home Intelligence portal or as instructed by Trane. Updates can improve functionality and security.
- Battery Check: While primarily powered by your HVAC system, some internal components may use a backup battery. Consult the full Trane manual for battery replacement procedures if applicable.
5. Troubleshooting
If you encounter issues with your Trane XL850 Controller, consider the following common troubleshooting steps:
- No Power/Display Off:
- Check the circuit breaker for your HVAC system.
- Ensure all wiring connections are secure.
- Verify the controller is properly seated on its backplate.
- Loss of Z-Wave Connectivity:
- Confirm your home internet connection is active.
- Check the status of your Z-Wave gateway.
- Attempt to re-include the XL850 into your Z-Wave network if necessary.
- Ensure the controller's firmware is up to date.
- Incorrect Temperature Readings:
- Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources.
- Consult the Trane user manual for potential temperature calibration options.
- Screen Saver Issues:
- The XL850 has a built-in screen saver function. Refer to the device settings for available customization options regarding its activation and display.
- Difficulty with Home Automation Integration:
- The Trane XL850 functions as a primary Z-Wave controller and is designed to manage its own Z-Wave network, often through Nexia Home Intelligence. It is generally not intended to be added as a device to another third-party Z-Wave hub.
If problems persist, contact Trane customer support or an authorized HVAC technician.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | TCONT850AC52UA |
| Z-Wave Certification ID | ZC08-14090003 |
| Frequency Region | U.S./Canada/Mexico |
| Z-Wave Library Version | 4.55.00 |
| Device Categories | Thermostats, Controllers |
| Supported Command Classes | Association, Battery, Binary Sensor, Binary Switch, Clock, Configuration, Door Lock, Firmware Update MD V2, Thermostat Setpoint V2, User Code, Wake Up, Sensor Multilevel V2, Switch |
| Controlled Command Classes | Association, Battery, Binary Sensor, Binary Switch, Clock, Configuration, Door Lock, Firmware Update, Multilevel Sensor, Multilevel |
| Item Weight | 1 pound (approx.) |
| Package Dimensions | 10 x 5.91 x 3.11 inches (approx.) |
| Unit Dimensions (H x W) | 3 3/8" x 5 3/8" (approx.) |
| Power Source | Primary power via HVAC system wiring; may include internal battery for backup. |
| Display Type | LCD |
| Color | Silver |
Figure 6.1: Front view of the Trane XL850 Controller, illustrating its approximate height and width dimensions.
7. Warranty Information
For detailed warranty information regarding your Trane XL850 TCONT850AC52UA Z-Wave Controller, please refer to the official warranty documentation included with your product or visit the official Trane website. Warranty terms and conditions may vary based on region and purchase location.
8. Support
If you require technical assistance, have questions about installation, operation, or troubleshooting that are not covered in this manual, please contact Trane customer support or an authorized Trane dealer. You can typically find contact information on the official Trane website or in the documentation accompanying your product.
Online Resources: Visit the official Trane website for FAQs, additional manuals, and support resources.
Professional Assistance: For complex issues or installation, it is recommended to contact a certified HVAC technician.
