XR20CX
XR Series • Refrigeration Controller
Quick Info
Output Functions
Basic single-stage refrigeration controller with off-cycle defrost
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 3 |
| Buttons | 3 |
| LED Indicators | Compressor |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 110-230V AC |
| Frequency | 50/60Hz |
| Power Consumption | 2VA |
Sensor Inputs
| Probe Inputs | 1 |
| Probe Type | NTC |
| Temp Range | -50 to 110°C |
| Accuracy | ±0.5°C |
Relay Outputs
| Relay Outputs | 1 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | 32x74 mm |
| Depth | 59 mm |
| IP Rating | IP65 (front) |
| Weight | 85 g |
Operating Conditions
| Operating Temp | 0 to 55°C |
| Storage Temp | -25 to 60°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 1 | Power L | Input |
brown
|
| 2 | Power N | Input |
blue
|
| 3 | Probe (+) | Input |
red
|
| 4 | Probe (-) | Input |
white
|
| 5 | Relay NO | Output |
black
|
| 6 | Relay COM | Output |
black
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SEt | Setpoint | -50 to 110 | 5 °C | Temperature setpoint |
| Hy | Differential | 0.1 to 25.5 | 2 °C | Switching differential |
| LS | Low Setpoint Limit | -50 to SET | -50 °C | Minimum setpoint |
| US | High Setpoint Limit | SET to 110 | 110 °C | Maximum setpoint |
| CA | Calibration | -12 to 12 | 0 °C | Probe offset |
| Cd | Compressor Delay | 0 to 15 | 0 min | Minimum off time |
| HC | Heat/Cool | 0=Cool, 1=Heat | 0 | Operating mode |
Error Codes
Solution: Check probe wiring and resistance
Solution: Check system capacity
Solution: Check setpoint and system
Frequently Asked Questions
Press SET for 5 seconds, navigate with UP/DOWN
Change HC parameter: 0=Cooling, 1=Heating
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Dixell
Country: Italy
Parent: Emerson Climate Technologies