Dixell XC645CX 0C11F controller for condensing units with four outputs and Digital Scroll compressor control (replacement of EC2-552)
Connection cable Dixell CWC15-KIT 1,5m with connectors 6-14pin female, for models with triac
Interface Dixell XJ485USB-KIT for programming controllers from PC via USB
Carel SPKT0021D0 refrigerant pressure sensor, -0.5 to 7 bar, female thread
Carel SPKT0031D0 refrigerant pressure sensor, 0 to 30 bar, female thread
- For control of condensing units with Digital Scroll compressors and other
- Up to 4 compressor/fan outputs
- Input 2x NTC/4..20mA/0..5V
- 2x analog output
- Connection cables CWC15-KIT, CAB/CJ15, CAB/CJ30 are not included in the controller and must be ordered as a separate item
Dixell XC600 series comparison:
| XC645CX | XC645D | XC650CX | XC660D | |
| Power | 12, 24 Vacdc | 230 Vac | 12, 24 Vacdc | 230 Vac |
| Analog inputs: | ||||
| Suction | 0..5V, 4..20mA, NTC | 0..5V, 4..20mA, NTC | 0..5V, 4..20mA, NTC | 0..5V, 4..20mA, NTC |
| Displacement | 0..5V, 4..20mA, NTC | 0..5V, 4..20mA, NTC | 0..5V, 4..20mA, NTC | 0..5V, 4..20mA, NTC |
| Configurable input | NTC | NTC | NTC | 0..5V, 4..20mA, NTC |
| Digital inputs: | ||||
| Low pressure switch | 1 | 1 | 1 | 1 |
| High pressure switch | 1 | 1 | 1 | 1 |
| Alarm | 4 | 5 | 4 | 6 |
| Configurable | 1 | 2 | 1 | 2 |
| Outputs: | ||||
| Relay | 4x 5A | 4x 5A | 5x 5A | 6x 5A |
| Digital™ compressor | Triac | Triak | ||
| Fr.inverter for compressor | Optional 4..20mA, 0..10V | Optional 4..20mA, 0..10V | Optional 4..20mA, 0..10V | |
| Fr.inverter for fans | Optional 4..20mA, 0..10V | Optional 4..20mA, 0..10V | Optional 4..20mA, 0..10V | Optional 4..20mA, 0..10V |
| Load | 12V/40mA | 12V/40mA | ||
| Other features: | ||||
| Communication | TTL | RS485 | TTL | RS485 |
| Remote keypad | VC660 | VC660 | ||
| Connection kit | CWC15-KIT, CWC30-KIT, CAB/CJ15, CAB/CJ30 | CW15-KIT, CW25-KIT, CAB/CJ15, CAB/CJ30 |
| Power supply | 12 Vac/dc |
| Design (panel size) | 32 x 74 mm |
| Type of regulation | PI |
| Control input | Universal |
| Auxiliary digital input | Yes |
| Output - relay | 4x |
| Analog output | Yes |
| Display digit colour | Two colours |
| Producer | Dixell |
Dixell XC645CX Used to control compressors and fans of condensing units. Compressors can be Digital Scroll, single, multi-stage.
The starting point for control using a neutral zone or proportionality band is the pressure or temperature sensed at the low pressure section (compressor suction) or high pressure section (condenser) of the circuit. A special algorithm balances the compressors' accrued hours to distribute the entire workload evenly.
The controller can convert the pressure reading and display it as a temperature.
The front panel offers complete information on system status, load status, condensing pressure (temperature), possible alarms or maintenance conditions. Each load has its own alarm input that can shut it down when activated.
Using the HOT KEY programming key, the controller can be easily programmed when switched on. The controller can be connected to Dixell Xweb monitoring systems using the TTL output and the XJ485CX to RS485 bus converter, using the standard ModBus RTU protocol.
| TECHNICAL PARAMETERS | |
|---|---|
| Dimensions | front panel 32x74 mm, depth 70mm |
| Mounting | in-panel, hole 29x71mm |
| Power supply | 12Vac/dc ±10% |
| Consumption | max. 5 VA |
| Coverage | IP65 (front panel), otherwise IP20 |
| Inputs | 2 x NTC/PTC/4..20mA (optional parameter) 7 x digital input |
| Outputs | 4 x SPST 5(3)A relay, 250Vac analog output 4÷20mA or 0÷10V Triac output 0.5A 230V oA6 open collector output 12V, 40mA TTL |
| Resolution | 0.1°C; 1°F; 0.1bar; 1 PSI; |
| Accuracy | ±0.7 °C ±1 digit |
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