1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Dixell IC208CX series digital thermostat temperature controllers. These controllers are designed for precise temperature management in refrigeration systems, ensuring optimal performance and energy efficiency. Please read this manual thoroughly before installation and operation to ensure safe and correct usage.
2. Safety Information
- Always disconnect power before performing any installation or maintenance procedures.
- Ensure all wiring is performed by a qualified technician and complies with local electrical codes.
- Do not expose the controller to water or excessive humidity.
- Verify the power supply voltage matches the controller's specifications (24V for IC208CX models).
- Do not attempt to repair or modify the controller. Contact qualified service personnel for assistance.
3. Components Overview
The Dixell IC208CX series temperature controller typically includes:
- Digital Thermostat Controller Unit
- NTC Temperature Probe (may be sold separately or integrated)
- Mounting Clips (for panel installation)
Figure 1: Front view of the Dixell IC208CX controller with display and control buttons.
Figure 2: Side view of the Dixell IC208CX controller, illustrating mounting clips.
4. Installation and Wiring
The IC208CX controller is designed for panel mounting. Ensure adequate ventilation around the unit.
4.1. Mounting
- Cut a panel opening of appropriate dimensions for the controller.
- Insert the controller into the opening.
- Secure the controller using the provided mounting clips.
4.2. Electrical Connections
Refer to the wiring diagram on the back of the unit and the images below for correct electrical connections. Incorrect wiring can damage the unit and pose safety risks.
Figure 3: Detailed wiring diagram for Dixell IC208CX-11000 controller. Pay close attention to terminal numbers for power supply (24V), probe connections, and output relays.
Figure 4: Close-up view of the IC208CX wiring terminals and diagram.
- Power Supply: Connect the 24V AC/DC power supply to the designated terminals (e.g., terminals 1 and 2 as indicated on the diagram).
- NTC Probe: Connect the NTC temperature probe to the appropriate input terminals.
- Outputs: Connect the refrigeration load (compressor, fan, defrost heater) to the respective relay output terminals (RL1, RL2, RL3, etc.) as per your system's requirements.
- Digital Inputs: Connect any digital inputs (e.g., door switch, external alarm) to the specified terminals.
- LAN/Remote Keyboard: If applicable, connect LAN or remote keyboard accessories to the dedicated ports.
Warning: Ensure all connections are secure and insulated to prevent short circuits and electrical hazards.
5. Operating Instructions
The Dixell IC208CX controller features an intuitive interface for setting and monitoring temperature.
5.1. Basic Functions
- Power On/Off: Press the POWER button to turn the unit on or off.
- View Setpoint: Press the SET button briefly to view the current temperature setpoint.
- Change Setpoint: Press and hold the SET button for a few seconds until the display flashes. Use the UP and DOWN arrows to adjust the setpoint. Press SET again to confirm.
- Manual Defrost: Press the DEFROST button (snowflake icon) to initiate a manual defrost cycle.
- Access Parameters: Press and hold the SET and DOWN buttons simultaneously for a few seconds to enter the parameter menu. Use UP and DOWN to navigate and SET to select/confirm.
5.2. Video Guide
Video 1: An overview of the Dixell chiller controller, demonstrating its physical features and basic handling.
6. Maintenance
Regular maintenance ensures the longevity and accurate operation of your temperature controller.
- Cleaning: Clean the controller's front panel with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Connections: Periodically check all electrical connections for tightness and signs of corrosion.
- Probe Inspection: Ensure the temperature probe is clean and properly positioned for accurate readings.
- Ventilation: Keep the ventilation slots on the controller clear of dust and debris to prevent overheating.
7. Troubleshooting
If you encounter issues with your Dixell IC208CX controller, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller display is off | No power supply; incorrect wiring; blown fuse | Check power connections; verify wiring; replace fuse if necessary. |
| Incorrect temperature reading | Faulty probe; probe incorrectly installed; probe wiring issue | Check probe connections; ensure probe is in the correct sensing location; replace probe if damaged. |
| Refrigeration unit not turning on/off | Setpoint issue; relay fault; wiring to load incorrect | Verify setpoint and differential settings; check output relay wiring; consult a technician if relay is suspected faulty. |
| Alarm indication | Temperature out of range; probe error; digital input triggered | Check system temperature; inspect probes and wiring; check digital input status. |
8. Specifications
| Feature | Detail |
|---|---|
| Product Name | Temperature Controller |
| Model Numbers | IC208CX-01000, IC208CX-11000, IC208CX-11100 |
| Thermostat Type | NTC Probe |
| Power Supply | 24V AC/DC |
| Frequency | 50Hz/60Hz |
| Operating Temperature Range | -10 to 55 °C |
| Power Absorption | 10VA max |
| Origin | Mainland China |
| Package Length | 15 cm |
| Package Width | 10 cm |
| Package Height | 15 cm |
| Package Weight | 3.0 kg |
9. User Tips
- For optimal temperature control, ensure the NTC probe is placed in a location that accurately reflects the temperature of the controlled environment, away from direct airflow or heat sources.
- Familiarize yourself with the parameter menu to fine-tune settings like differential, defrost cycles, and alarm thresholds for your specific refrigeration application.
- Keep a record of your custom parameter settings for quick reference or if a reset is ever needed.
10. Warranty and Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your supplier or refer to the online support resources provided by Dixell. Ensure you have your product model number and any relevant purchase information ready when seeking support.
Online support is available for assistance with product-related queries.
