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What You'll Need

  • Trane XL824 thermostat
  • Compatible Trane HVAC system
  • Screwdriver
  • Smartphone with Nexia or Trane Home app
  • Wi-Fi network

Step 1: Turn Off Power

Turn off power to your HVAC system at the circuit breaker. Wait for the system to fully power down.

Step 2: Remove Old Thermostat

Remove your existing thermostat. Document or photograph the wiring connections before disconnecting.

Step 3: Mount the Backplate

Mount the XL824 backplate on the wall. Route wires through the opening and level the plate before securing.

Step 4: Connect Wiring

Connect the thermostat wires to the appropriate terminals on the backplate following the wiring diagram.

Step 5: Attach Thermostat

Snap the thermostat display onto the backplate. Restore power at the breaker.

Step 6: Initial Configuration

Follow the on-screen setup wizard to configure your HVAC system type, date, time, and preferences.

Step 7: Connect to Wi-Fi

Navigate to network settings and connect to your Wi-Fi network. Download the Nexia or Trane Home app to control remotely.

Features

  • Color Touchscreen: 4.3" intuitive display
  • ComfortLink II: Communicates with compatible Trane equipment
  • 7-Day Programming: Customizable schedules
  • Remote Access: Control from anywhere via app
  • Energy Reports: Track and optimize usage
  • Z-Wave Compatible: Integrate with smart home systems

Troubleshooting

  • Blank screen: Check power at breaker; verify wiring connections
  • Not communicating: Verify ComfortLink connection to HVAC
  • Wi-Fi issues: Check network compatibility; restart router
  • HVAC not responding: Check system wiring; consult HVAC technician