1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Dixell Digital Temperature Control Panel Thermostat, Model XR03CX (Atosa Part # W0302163). This microprocessor-based controller is designed for precise temperature management in medium or low-temperature ventilated refrigerating units. Please read this manual thoroughly before use to ensure safe and efficient operation.
2. Product Overview
The Dixell XR03CX is a compact digital temperature controller, measuring 32 x 74 x 60 mm (1.26" x 2.91" x 2.36"). It features a digital display for temperature readings and includes two relay outputs for controlling a compressor and a fan. The unit is designed for 120V electrical systems.
Front view of the Dixell Digital Temperature Control Panel Thermostat. The panel features a central digital display, a 'SET' button on the lower left, a snowflake/defrost button on the upper left, and 'up' and 'down' arrow buttons on the right, with 'aux' labeled below the down arrow. The words 'REFRIGERATOR' and 'Dixell' are visible at the bottom of the panel.
Key features include:
- Microprocessor-based control for accuracy.
- Two relay outputs for compressor and fan control.
- Digital display for clear temperature indication.
- HOTKEY compatibility for quick and easy programming.
- Suitable as a replacement thermometer for various refrigerators, including Norlake and True brands.
3. Setup
Installation should be performed by qualified personnel to ensure safety and proper functionality. Always disconnect power before installation or maintenance.
- Verify Compatibility: Confirm that the part number W0302163 matches the required replacement part for your refrigerating unit.
- Mounting: Install the controller in a suitable panel cutout, ensuring a secure fit. Refer to the product dimensions (32 x 74 x 60 mm) for precise fitting.
- Wiring: Connect the power supply (120V) and the compressor and fan loads to the designated relay outputs. Connect the temperature sensor to the appropriate input terminals. Ensure all connections are secure and follow local electrical codes.
- Sensor Placement: Position the temperature sensor in the refrigerating unit to accurately measure the desired control temperature.
- Power On: Once all connections are verified, restore power to the unit. The digital display should illuminate.
4. Operating Instructions
The Dixell XR03CX controller is designed for straightforward operation. Specific programming details may vary; however, general functions are as follows:
- Display: The digital display shows the current temperature measured by the sensor.
- SET Button: Press the 'SET' button to view or modify the setpoint temperature. Use the 'Up' and 'Down' arrow buttons to adjust the value. Press 'SET' again to confirm.
- Up/Down Arrows: These buttons are used to navigate menus, adjust setpoint values, or activate specific functions depending on the controller's mode.
- Defrost Function: The snowflake/defrost button typically initiates a manual defrost cycle. Consult the full Dixell XR03CX technical manual for detailed defrost parameters and operation.
- HOTKEY Programming: For advanced users or batch programming, the HOTKEY feature allows for quick configuration of the instrument. Refer to Dixell documentation for HOTKEY usage.
5. Maintenance
Regular maintenance ensures the longevity and accuracy of your temperature controller.
- Cleaning: Periodically clean the front panel with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the controller.
- Inspection: Regularly inspect wiring connections for any signs of wear, corrosion, or looseness. Tighten connections as necessary.
- Sensor Check: Ensure the temperature sensor is clean and properly positioned. Verify its integrity if temperature readings appear inaccurate.
- Power Cycle: If the controller exhibits unusual behavior, a power cycle (turning off and on the main power) may resolve minor issues.
For any internal maintenance or repairs, contact a qualified technician.
6. Troubleshooting
This section addresses common issues you might encounter with the Dixell XR03CX controller.
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank | No power supply; loose wiring; internal fault. | Check power connection (120V). Verify wiring. If problem persists, contact support. |
| Inaccurate temperature reading | Faulty sensor; incorrect sensor placement; calibration issue. | Check sensor connection and placement. Replace sensor if damaged. Consult technical manual for calibration. |
| Compressor/Fan not operating | Setpoint issue; wiring problem; relay fault; external unit issue. | Verify setpoint and differential settings. Check wiring to compressor/fan. Ensure external units are functional. |
| Controller unresponsive | Software glitch; power fluctuation; internal component failure. | Perform a power cycle. If unresponsive, contact technical support. |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please contact customer support.
7. Specifications
| Model Number | XR03CX (Atosa Part # W0302163) |
| Manufacturer | Dixell |
| Brand | Xiltek |
| Voltage | 120 Volts |
| Product Dimensions (L x W x H) | 2.91" x 1.26" x 2.36" (74 x 32 x 60 mm) |
| Item Weight | 7.7 ounces |
| Display Type | Digital |
| Color | Grey |
| UPC | 619730143941 |
8. Warranty and Support
For warranty information, please refer to the terms provided at the time of purchase or contact the seller directly. This product is manufactured by Dixell and distributed by Xiltek.
For technical support or inquiries regarding your Dixell Digital Temperature Control Panel Thermostat, please contact Xiltek customer service or your authorized dealer. When contacting support, please have your model number (XR03CX / W0302163) and purchase details readily available.
Optional protection plans may be available for extended coverage. Please check with your retailer for details on 3-Year or 4-Year Protection Plans.