Product Overview
The Hunter ICD600 is a 6-station decoder designed for use with Hunter's ACC controller, integrating advanced features with the benefits of a two-wire decoder system.
Key Features:
- Decoder station sizes available: 1, 2, 4, 6.
- Max distance to decoder, 14 AWG wire path: 10,000 ft.
- Max distance to decoder, 12 AWG wire path: 15,000 ft.
- Max recommended distance, decoder to solenoid: 150 ft.
- Field programmable decoders for flexible configuration.
- ICD-HP wireless handheld programmer compatible for easy setup.
- Two-way communications for reliable operation.
- Internal surge suppression with included ground wire for protection.
- Dual pump/master valve outputs assignable to decoders.
- Wire path connectors included with each decoder.
- Supports up to 6 wire paths.
- Compatible with optional Hunter Solar Sync sensor for automatic daily weather-based scheduling.

Image: The Hunter ICD600 6-Station Decoder, a black rectangular unit with various colored wires (red, blue, black, white, yellow, green) emerging from its top, indicating its electrical connections.
Setup and Installation
Proper installation is crucial for the optimal performance and longevity of your ICD600 decoder. Always ensure power is disconnected before beginning any wiring.
Wiring the Decoder:
- Identify Wire Paths: The ICD600 supports up to 6 wire paths. Plan your irrigation zones and corresponding wire runs from the ACC controller.
- Connect Two-Wire Path: Connect the two-wire path from the ACC controller to the designated terminals on the ICD600 decoder. Ensure a secure, waterproof connection using the provided wire path connectors.
- Connect Solenoid Wires: Connect the solenoid wires from each irrigation valve to the corresponding station terminals on the decoder. Observe polarity if specified by the valve manufacturer, though decoders typically manage this internally.
- Ground Wire Connection: Connect the included ground wire from the decoder to a suitable earth ground point to utilize the internal surge suppression. This is vital for protecting the unit from electrical surges.
- Master Valve/Pump Start: If using a master valve or pump, connect its wires to the designated master valve/pump output terminals on the decoder. These outputs can be assigned to specific decoders via the controller programming.
- Sensor Decoder (Optional): If using a sensor decoder with Flow and Click inputs, connect these as per the sensor's instructions to the appropriate terminals.
Programming the Decoder:
The ICD600 decoders are field programmable. This can typically be done using the ACC controller's interface or with the optional ICD-HP wireless handheld programmer.
- Refer to your ACC controller's manual for detailed instructions on assigning station numbers to the connected decoders.
- Utilize the ICD-HP programmer for convenient programming and diagnostics in the field without needing to access the main controller.
Operating Instructions
Once installed and programmed, the ICD600 decoder operates seamlessly with your Hunter ACC controller. All irrigation scheduling and manual operations are managed through the main controller.
Normal Operation:
- The ACC controller sends signals through the two-wire path to the ICD600 decoder.
- The decoder receives these signals and activates the corresponding irrigation station (valve) as programmed.
- Two-way communication allows the controller to receive feedback from the decoder, aiding in diagnostics and system monitoring.
Advanced Features:
- Solar Sync Compatibility: If an optional Hunter Solar Sync sensor is connected to your ACC controller, the system will automatically adjust irrigation schedules daily based on local weather conditions, optimizing water usage.
- Dual Pump/Master Valve Control: The decoder can manage dual pump or master valve outputs, allowing for flexible system design and control.
For detailed instructions on programming irrigation schedules, manual station operation, and advanced controller settings, please refer to the Hunter ACC Controller User Manual.
Maintenance
The Hunter ICD600 decoder is designed for durability and requires minimal maintenance. However, periodic checks can help ensure long-term reliable operation.
- Inspect Connections: Annually inspect all wire connections, especially those exposed to the elements, to ensure they remain secure and waterproof. Damaged insulation or corroded connectors can lead to system malfunctions.
- Check Grounding: Verify that the ground wire connection for surge suppression remains intact and properly grounded.
- Environmental Protection: Ensure the decoder is installed in a location protected from direct physical damage and extreme environmental conditions where possible, although it is designed for outdoor use.
- Software Updates: Keep your ACC controller's firmware updated as recommended by Hunter to ensure compatibility and optimal performance with connected decoders.
Troubleshooting
If you encounter issues with your ICD600 decoder or irrigation system, consider the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Station not activating |
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| System reports communication error |
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| Surge suppression issues |
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For more complex issues or if the above steps do not resolve the problem, contact Hunter technical support or a certified irrigation professional.
Specifications
| Attribute | Value |
|---|---|
| Model Number | ICD600 |
| Product Dimensions | 5 x 7 x 10 inches |
| Item Weight | 1.15 pounds |
| Decoder Station Sizes Available | 1, 2, 4, 6 |
| Max Distance to Decoder (14 AWG wire) | 10,000 ft. |
| Max Distance to Decoder (12 AWG wire) | 15,000 ft. |
| Max Recommended Distance (Decoder to Solenoid) | 150 ft. |
| Surge Suppression | Internal (ground wire included) |
| Number of Wire Paths | 6 |
| Manufacturer | Standard Plumbing Supply-LG |
Warranty Information
Hunter Industries products are manufactured to the highest quality standards and are backed by a limited warranty. Specific warranty terms and conditions, including duration and coverage, are typically provided with the product packaging or can be found on the official Hunter Industries website.
Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, product inquiries, or troubleshooting beyond the scope of this manual, please contact Hunter Industries customer support.
- Online Resources: Visit the official Hunter Industries website for FAQs, product documentation, and support forums.
- Contact Information: Refer to the Hunter Industries website or your product packaging for the most current contact details, including phone numbers and email addresses for technical support.
- Professional Assistance: Consider consulting a certified irrigation professional for installation or complex system diagnostics.





