XC660D
XC Series • Refrigeration Controller
Quick Info
Output Functions
Pack controller for parallel compressor systems
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 4 |
| Buttons | 6 |
| LED Indicators | Comp 1, Comp 2, Comp 3, Defrost, Fan, Alarm |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 100-240V AC |
| Frequency | 50/60Hz |
| Power Consumption | 8VA |
Sensor Inputs
| Probe Inputs | 4 |
| Probe Type | NTC / PT1000 |
| Temp Range | -50 to 150°C |
| Accuracy | ±0.3°C |
Relay Outputs
| Relay Outputs | 6 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | 71x29 mm |
| Depth | 75 mm |
| IP Rating | IP65 (front) |
| Weight | 180 g |
Operating Conditions
| Operating Temp | -10 to 55°C |
| Storage Temp | -30 to 70°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| L | Power L | Input |
brown
|
| N | Power N | Input |
blue
|
| Pb1 | Probe 1 (Room) | Input |
red/white
|
| Pb2 | Probe 2 (Evap) | Input |
red/white
|
| Pb3 | Probe 3 (Disch) | Input |
red/white
|
| Pb4 | Probe 4 (Aux) | Input |
red/white
|
| DI1 | Digital Input 1 | Input |
gray
|
| DI2 | Digital Input 2 | Input |
gray
|
| R1 | Relay 1 (Comp 1) | Output |
black
|
| R2 | Relay 2 (Comp 2) | Output |
black
|
| R3 | Relay 3 (Comp 3) | Output |
black
|
| R4 | Relay 4 (Defrost) | Output |
orange
|
| R5 | Relay 5 (Fan) | Output |
green
|
| R6 | Relay 6 (Alarm) | Output |
red
|
| A | RS485 A | Comm |
blue
|
| B | RS485 B | Comm |
yellow
|
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 150 | 0 °C | Main setpoint |
| Hy | Differential | 0.1 to 25.5 | 2 °C | Stage 1 differential |
| Hy2 | Stage 2 Diff | 0.1 to 25.5 | 4 °C | Stage 2 differential |
| Hy3 | Stage 3 Diff | 0.1 to 25.5 | 6 °C | Stage 3 differential |
| CdL | Stage Delay | 0 to 255 | 5 min | Delay between stages |
| nC | Num Compressors | 1 to 3 | 2 | Number of stages |
| Rot | Rotation | 0=No, 1=Yes | 1 | Compressor rotation |
| dt | Defrost Type | 0-4 | 1 | Defrost method |
| dI | Defrost Interval | 0 to 48 | 8 hr | Time between defrosts |
| dP | Defrost Duration | 0 to 255 | 30 min | Max defrost time |
Error Codes
Solution: Check room probe
Solution: Check evaporator probe
Solution: Check discharge probe
Solution: Check auxiliary probe
Solution: Check system capacity
Solution: Check setpoint/defrost
Solution: Check condenser
Solution: Check refrigerant charge
Frequently Asked Questions
When Rot=1, the first-on compressor changes each cycle to equalize run hours
Press SET+UP to access statistics menu
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Dixell
Country: Italy
Parent: Emerson Climate Technologies