1. Introduction
This manual provides essential instructions for the proper installation, operation, and maintenance of the Norlake 139850S Dixel XR06 Programmed Controller. This device is designed for precise temperature control in commercial refrigeration applications. Please read this manual thoroughly before attempting to install or operate the controller to ensure safe and efficient performance.
2. Safety Information
- Always disconnect power before performing any installation, wiring, or maintenance procedures.
- Installation and wiring should only be performed by qualified personnel in accordance with local and national electrical codes.
- Ensure the power supply voltage matches the controller's specifications (120V, 50-60Hz).
- Do not expose the controller to water or excessive humidity.
- Use genuine OEM parts for safety, reliability, and performance.
3. Product Overview
The Norlake 139850S Dixel XR06 is a compact, programmed controller designed for refrigeration units. It features a digital display for temperature readings and status indicators, along with control buttons for setting parameters. The unit is supplied with a removable terminal block for electrical connections and mounting clips for secure installation.
Figure 1: Norlake 139850S Dixel XR06 Programmed Controller. This image displays the Norlake 139850S Dixel XR06 Programmed Controller unit, a green terminal block connector, and two white mounting clips. The controller features a digital display and control buttons on the front panel, with wiring diagrams and specifications printed on its side.
Controller Components:
- Digital Display: Shows current temperature and operational status.
- Control Buttons: Used for setting parameters and navigating menus (e.g., SET, Up, Down, Light/Aux).
- Terminal Block: Removable connector for electrical wiring.
- Mounting Clips: For securing the controller in a panel cutout.
- Identification Label: Located on the side, indicating model, voltage, frequency, probe type (NTC), and power consumption (3.3VA MAX).
4. Setup and Installation
4.1 Mounting
- Create a panel cutout of appropriate dimensions for the controller.
- Insert the controller into the cutout from the front.
- Secure the controller using the provided mounting clips, ensuring a snug fit.
4.2 Wiring
Refer to the wiring diagram printed on the side of the controller and the specific requirements of your refrigeration system. The terminal block connections typically include:
- Power Supply (120V, 50-60Hz): Connect to the designated 'Supply' terminals.
- Compressor (Comp): Connect to the compressor load terminals.
- Fan: Connect to the fan load terminals.
- Defrost (Def): Connect to the defrost heater terminals.
- Probe (NTC): Connect the temperature sensor probe to the designated NTC probe terminals.
Note: Ensure all connections are secure and correctly polarized. Incorrect wiring can damage the unit or pose a safety hazard.
5. Operating Instructions
5.1 Initial Power-Up
Once wired and mounted, apply power to the controller. The display will illuminate, showing the current temperature measured by the NTC probe.
5.2 Setting the Temperature (Set Point)
- Press the SET button. The current set point temperature will flash on the display.
- Use the Up and Down arrow buttons to adjust the set point to the desired temperature.
- Press the SET button again to confirm and save the new set point. The display will return to showing the current temperature.
5.3 Accessing Parameters (Hot Key)
Advanced parameters, such as defrost cycles, differential, and probe calibration, can be accessed through a specific sequence, often referred to as the 'Hot Key' function. Consult the detailed Dixel XR06 programming manual for specific parameter codes and adjustment procedures. This typically involves holding down certain buttons for a few seconds to enter the parameter menu.
6. Maintenance
6.1 Cleaning
- Wipe the controller's front panel with a soft, damp cloth.
- Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the display or internal components.
6.2 Inspection
- Periodically inspect wiring connections for tightness and signs of wear or corrosion.
- Ensure the temperature probe is securely in place and free from damage.
7. Troubleshooting
This section addresses common issues you might encounter with the controller.
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller display is off | No power supply; loose wiring | Check power connections and circuit breaker. Ensure wiring is secure. |
| Incorrect temperature reading | Faulty probe; probe not properly installed | Check probe connection. Replace probe if damaged. Verify probe type (NTC). |
| Compressor/Fan not operating | Incorrect set point; wiring issue; controller fault | Verify set point. Check wiring to compressor/fan. Consult a qualified technician if fault persists. |
| Error code on display | Specific system fault | Refer to the Dixel XR06 programming manual for specific error code definitions and troubleshooting steps. |
8. Specifications
- Model Number: 139850S
- Brand: Norlake
- Controller Type: Programmed Controller (Dixel XR06)
- Voltage: 120V
- Frequency: 50-60Hz
- Probe Type: NTC
- Power Consumption: 3.3VA MAX
- Operating Humidity: 20-85% R.H. (non-condensing)
- Approximate Unit Dimensions (based on package): 10 x 10 x 8 inches
- Approximate Item Weight: 8 ounces
- UPC: 046843096626
- Manufacturer: Norlake
- Date First Available: October 10, 2017
9. Warranty and Support
The Norlake 139850S Dixel XR06 Programmed Controller is a genuine OEM (Original Equipment Manufacturer) replacement part. For specific warranty information, please refer to the terms provided by Norlake or your authorized distributor at the time of purchase. For technical support or service, contact your Norlake dealer or a qualified refrigeration technician.