XL824
XL800 Series • HVAC Controller
Quick Info
Output Functions
WiFi-enabled smart thermostat with color touchscreen
Technical Specifications
Display & Interface
| Display Type | LCD Color |
| Display Digits | 0 |
| Buttons | Touchscreen |
| LED Indicators | WiFi, Activity |
Power Supply
| Voltage | 24V AC |
| Voltage Range | 20-30V AC |
| Frequency | 50/60Hz |
| Power Consumption | 5VA |
Sensor Inputs
| Probe Inputs | 2 |
| Probe Type | NTC (built-in + remote) |
| Temp Range | -18 to 49°C |
| Accuracy | ±0.5°C |
Relay Outputs
| Relay Outputs | 5 |
| Relay Rating | 1A/24VAC |
Physical
| Panel Size | 141x95 mm |
| Depth | 25 mm |
| IP Rating | IP20 |
| Weight | 220 g |
Operating Conditions
| Operating Temp | 0 to 45°C |
| Storage Temp | -10 to 55°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| R | Power (24VAC) | Input |
red
|
| C | Common | Input |
blue
|
| W1 | Heat Stage 1 | Output |
white
|
| W2 | Heat Stage 2 | Output |
white
|
| Y | Cooling | Output |
yellow
|
| G | Fan | Output |
green
|
| O/B | Reversing Valve | Output |
orange
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SP | Setpoint | 10 to 32 | 22 °C | Room setpoint |
| MD | System Mode | Off/Heat/Cool/Auto | Auto | HVAC mode |
| FS | Fan Mode | Auto/On/Circ | Auto | Fan operation |
| Sch | Schedule | On/Off | On | 7-day schedule |
| Geo | Geofencing | On/Off | Off | Location-based control |
| Hum | Humidity | Display/Control | Display | Humidity feature |
Error Codes
Solution: Check internal sensor
Solution: Check remote sensor
Solution: Check network settings
Solution: Check HVAC system
Frequently Asked Questions
Go to Settings > WiFi, select network and enter password
Yes, use Honeywell Home app for iOS/Android
Automatically adjusts temperature based on phone location
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Honeywell
Country: USA