Hunter X-Core Residential Irrigation Controller

Owner's Manual and Programming Instructions

X-CORE COMPONENTS

The X-Core controller features an LCD display and various control buttons and dial settings for operation.

LCD Display

Wiring Compartment

Control Buttons

Dial Settings

External Transformer (Indoor Model Only)

A plug-in transformer supplies AC power to the controller.

MOUNTING THE CONTROLLER TO WALL

Note: The indoor version of the X-Core is not waterproof or weather-resistant and must be installed indoors or in a protected area.

  1. Secure one screw into the wall, using anchors if needed for drywall or masonry.
  2. Slide the controller's keyhole over the screw.
  3. Secure the controller with screws in the holes below the terminal strip.

NOTE: Do not plug the transformer into the power source until the controller is mounted and all valve wiring is connected.

NOTE: For XC - x01 - A: If the supply cord is damaged, it must be replaced by the manufacturer, service agent, or a similarly qualified person.

NOTE: The door on outdoor units must remain closed for maximum water resistance.

CONNECTING VALVES AND TRANSFORMER

Installation should be done by trained personnel.

  1. Route valve wires between the control valve location and the controller.
  2. At the valves, attach a common wire to each solenoid wire. Attach a separate control wire to the remaining wire of each valve. Use waterproof connectors.
  3. Route valve wires through conduit, attaching the conduit to the bottom right side of the controller.
  4. Secure the white valve common wire to the C (Common) screw on the terminal strip. Attach each valve control wire to the appropriate station terminal and tighten screws.
  5. Indoor Models: Route the transformer cable through the left side hole and connect wires to the two screws marked 24 VAC.

NOTE: The indoor transformer cable should not be cut. If cut, the red and white wires must be joined.

Outdoor Models: Transformer wires are pre-connected. Connect primary power to the junction box.

NOTE: Outdoor models are water and weather-resistant. Connecting to primary AC power should be done by a licensed electrician following local codes. Improper installation can result in shock or fire hazard.

High Voltage Wiring (Outdoor Model only)

  1. Route AC power cable and conduit through the 1/2" (13 mm) conduit opening on the left side bottom of the cabinet.
  2. Connect one wire to each of the two wires inside the junction box. Connect the ground wire to the green wire using provided wire nuts.
  3. For -E models only: Connect wires to the AC terminal block inside the junction box. AC supply wires must be 14 AWG (1.85 mm) or larger with an appropriate circuit breaker. Include a switch or circuit-breaker in the building installation, marked as the disconnecting device.
  4. Replace the junction box cover.

ACTIVATING THE BATTERY

After installing the X-Core, remove the battery contact insulator to allow the X-Core to keep time during power outages.

CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to instructions.

REPLACING THE BATTERY

A high-energy lithium battery is included for remote programming without AC power and for backup timekeeping during power outages.

  1. Remove the screw from the battery holder.
  2. Slide the battery holder down to access the battery.
  3. Remove and replace the battery, then reinstall the holder.

NOTE: The positive(+) side of the battery should face the inside of the battery holder.

CONNECTING A MASTER VALVE

NOTE: Complete this section only if a master valve is installed. A master valve is a normally closed valve at the supply point of the main line that opens only when the controller initiates a watering program.

  1. At the Master Valve, attach the common wire to either solenoid wire. Attach a separate control wire to the remaining solenoid wire.
  2. The common wire should be attached to the C terminal inside the controller. The other wire from the master valve should be attached to the P terminal inside the controller. Tighten each terminal screw.

CONNECTING A PUMP START RELAY

NOTE: Complete this section only if a pump start relay is installed. A pump start relay uses a controller signal to actuate a separate electrical circuit to energize a pump.

The controller should be mounted at least 15 ft (4.5m) away from the pump start relay and pump to minimize potential electrical interference.

  1. Route a pair of wires from the pump relay into the controller.
  2. Connect a common wire (typically white) to the C (common) terminal inside the controller and connect the remaining wire from the pump start relay to the P (Pump) terminal.

Relay holding current draw must not exceed 0.3 A. Do not connect the controller directly to the pump or damage will result. Visit http://www.hunterindustries.com/support/controllers/pump-start-relay for more information.

CONNECTING A HUNTER "CLIK" WEATHER SENSOR

Hunter weather sensors or other micro-switch type sensors can connect to the X-Core to stop automatic watering when weather conditions dictate.

  1. Remove the metal jumper plate across the two SEN terminals inside the controller.
  2. Connect one wire to one SEN terminal and the other wire to the other SEN terminal.

When the weather sensor deactivates automatic watering, the OFF and [sprinkler icon] icons will appear on the display.

Testing the Weather Sensor

The X-Core offers simplified testing of a rain sensor. You can manually test its operation by running an AUTO CYCLE or using the One Touch AUTO CYCLE. During the Manual cycle, pressing the top spindle on the Hunter sensor will interrupt watering.

Manually Bypassing the Weather Sensor

If the rain sensor is interrupting irrigation, you can bypass it using the bypass switch on the front of the controller. Slide the switch to the SENSOR BYPASS position to disable the rain sensor. When using the MANUAL – ONE STATION function, the controller automatically bypasses sensor inputs for the selected time.

NOTE: Enabling the Sensor Bypass switch does not affect seasonal adjust updates from the Solar Sync sensor but will bypass Rain Clik and Freeze - Clik functionality.

CONNECTING A HUNTER SOLAR SYNC ET SENSOR

The X-Core is compatible with Solar Sync and Wireless Solar Sync systems. Solar Sync is a sensor system that automatically adjusts watering schedules based on local climate conditions using the Seasonal Adjust function. It uses solar and temperature sensors to determine evapotranspiration (ET) and includes Hunter Rain Clik and Freeze Clik technology to shut down irrigation during rain or freezing conditions.

NOTE: Solar Sync applies a default seasonal adjust value of 100% until the first full day (24-hour period) of weather measurements are received.

NOTE: Enabling the Sensor Bypass switch does not affect seasonal adjust updates from the Solar Sync sensor but will bypass Rain Clik and Freeze - Clik functionality.

NOTE: The Solar Sync module is not required for installation using the X-Core Controller.

Installing Solar Sync Sensor

Connect the Green and Black wire from the Solar Sync Sensor to the “SEN” wiring terminals on the X-Core controller. Turn the dial to the “Solar Sync Settings” position. The display will show dashed lines, then the default Region setting (3) on the left and the default Water Adjustment setting (5) on the right. Adjust the Region using the [up arrow] and [down arrow] buttons. Use the [right arrow] button to advance to adjust the Water Adjust setting.

Installing the Wireless Solar Sync

Connect the Green and Black wire from the Wireless Solar Sync Receiver to the “SEN” wiring terminals on the X-Core controller. Turn the dial to the "Solar Sync Settings" position. The display will show dashed lines, then the default Region setting (3) on the left and the default Water Adjustment setting (5) on the right. Adjust the region using the [up arrow] and [down arrow] buttons. Use the [right arrow] button to advance to adjust the Water Adjust setting.

Solar Sync Settings

When the Solar Sync sensor is connected, two numbers appear in the display when the dial is set to Solar Sync Settings. The left number is the Region setting, and the right number is the Water Adjustment setting.

Region

For accurate Solar Sync measurements, program the controller for the average peak season ET for your region. Use the table below to determine your region. You can use methods A, B, or C.

Region Setting Table

A (ET) B (Temperature) C (Description)
Region 1 If average July ET is < 0.17" (4.3 mm) per day If average temperature for July is 65°-75° (18°C - 24°C) • U.S. Northern States
• Coastal Regions
Region 2 If average July ET is 0.18" – 0.23" (4.6 mm - 5.8 mm) per day If average temperature for July is 75°-85° (24°C – 29°C) • Mountains
• U.S. Northern Inland States
Region 3 If average July ET is 0.24" – 0.29" (6.1 mm – 7.4 mm) per day If average temperature for July is 85°-95° (29°C – 35°C) • U.S. Southern States
• Inland/High Desert
Region 4 If average July ET is > 0.30" (7.6 mm) per day If average temperature for July is 95°-105° (35°C – 41°C) • Deserts

* For Southern hemisphere locations, use the month of January.

Water Adjustment

The Water Adjustment is a 1 to 10 scale for adjusting the Seasonal Adjust value from the Solar Sync ET Sensor. The default setting is 5. If the seasonal adjust value is lower or higher than expected, modify the Water Adjustment value. Refer to Calibration/Setup for details.

NOTE: If an individual zone is "wetter" or "drier" than the rest of the system, increase or decrease the amount of run time on the controller.

Uninstalling a Solar Sync Sensor

If a Solar Sync sensor is no longer to be used, it must be uninstalled. If not uninstalled, the controller will not allow manual changes to the seasonal adjust value. If the sensor is removed without uninstalling, the controller retains the last seasonal adjust value (e.g., 50%) until uninstalled.

To uninstall: disconnect the green and black wires from the controller terminal. Turn the dial to "Solar Sync Settings". The display should show dashes, indicating the controller no longer recognizes the sensor. The seasonal adjust value can now be manually changed by turning the dial to "Seasonal Adjust" and using the [plus] or [minus] buttons.

Calibration/Setup

After Solar Sync installation, allow the system to run for a few days at the initial setting. Adjust the Region and/or Water Adjustment settings for optimal performance based on site conditions.

  1. Install Solar Sync sensor.
  2. Program Region and allow system to operate for a minimum of 3 days.
  3. Observe the Seasonal Adjust. If it appears too low or too high, adjust the settings:
    • Seasonal Adjust too low: Turn dial to Solar Sync settings. Increase Water Adjustment value (max 10). If still too low, move to the next lower Region (e.g., Region 4 to 3) and adjust Water Adjustment.
    • Seasonal Adjust too high: Turn dial to Solar Sync settings. Decrease Water Adjustment value (default 5). If still too high, move to the next higher Region (e.g., Region 2 to 3) and adjust Water Adjustment.

Station Run Times: Solar Sync provides a global seasonal adjustment. Enter run times representing peak season watering schedules. If Solar Sync adjusts the run time for a specific station too long/short, adjust the station run time in the controller program.

SOLAR SYNC DELAY FEATURE

This feature allows the user to postpone seasonal adjustment changes from Solar Sync for up to 99 days. Solar Sync continues to collect data during the delay.

Operation

To access Solar Sync Delay:

  1. Place the dial in the RUN position. Press and hold the [plus] button, rotate the dial to the Solar Sync position, then release the [plus] button. The display shows "d:XX" (d=days, XX=number of days to delay).
  2. Press the [plus] or [minus] buttons to set the delay duration.
  3. Return the dial to the RUN position to activate the delay.

To change existing Delay days:

  1. Open the Solar Sync Delay menu by pressing the [right arrow] button and rotating the dial to Solar Sync Settings, then release the [plus] button.
  2. Use the [plus] or [minus] keys to modify the number of days. Setting days to 00 turns Solar Sync Delay OFF.
  3. Return the dial to the RUN position for changes to take effect.

While Solar Sync Delay is active, Solar Sync gathers weather information and calculates the Seasonal Adjust Value. The updated value is applied once the Solar Sync Delay days reach 00.

NOTE: The number of remaining days is not displayed on the RUN screen. Check the Delay menu to verify if the feature is active.

CONNECTING A HUNTER REMOTE

The X-Core Controller is compatible with Hunter Remote Controls. The SmartPort® wiring harness allows for easy use of Hunter controls, enabling system operation without walking to the controller.

To install the SmartPort connector

  1. Install a 1/2" Female threaded "Tee" in the field wiring conduit approximately 12 inches below the X-Core.
  2. Feed the red, white, and blue wires of the harness through the base of the "Tee" and into the wiring compartment.
  3. Screw the SmartPort harness housing into the "Tee".
  4. Attach the red, white, and blue SmartPort wires to the controller terminal: Red to the left "24 VAC", White to the right "24 VAC", and Blue to "REM".

NOTE: P/N 258200 can be used as an alternate method to mount the SmartPort connector.

POWER FAILURES

The controller has non-volatile memory, so programmed information is not lost during power outages. The lithium battery maintains the correct time without AC power. Normal watering resumes when AC power is restored.

PROGRAMMING THE CONTROLLER

The X-Core display shows the time and day when idle. The display changes to show programming information when the dial is rotated. Flashing portions of the display can be changed using the [plus] or [minus] buttons. Non-flashing items can be selected by pressing the [right arrow] or [left arrow] buttons until the desired field flashes.

Three programs (A, B, C) with four daily start times each allow for different watering requirements.

Setting the Date and Time

  1. Turn the dial to the CURRENT TIME/DAY position.
  2. The current year flashes. Use [plus] or [minus] to change the year. Press [right arrow] to proceed to the month.
  3. The month flashes. Use [plus] or [minus] to change the month. Press [right arrow] to proceed to the day.
  4. The day flashes. Use [plus] or [minus] to change the day. Press [right arrow] to proceed to the time.
  5. The time is displayed. Use [plus] or [minus] to select AM/PM or 24-hour format. Press [right arrow] to change the hour. Use [plus] or [minus] to adjust the hour. Press [right arrow] to change the minute. Use [plus] or [minus] to adjust the minute. The date, day, and time are now set.

NOTE: Flashing characters indicate the item being programmed.

Setting the Program Start Time(s)

  1. Turn the dial to the START TIMES position.
  2. The factory preset is program A. Select B or C by pressing the [PRG] button.
  3. Use the [plus] or [minus] buttons to change the start time (15-minute increments).
  4. Press the [right arrow] button to add another start time, or the [PRG] button for the next program.

NOTE: One start time activates all stations sequentially in that program. Multiple start times can be used for different watering cycles (morning, afternoon, evening). Start times are automatically sorted.

Eliminating a Program Start Time

With the dial set to START TIMES, press [plus] or [minus] until 12:00 AM (Midnight) is reached. Press [right arrow] once to reach the OFF position.

Setting Station Run Times

  1. Turn the dial to RUN TIMES position.
  2. The display shows the last program selected (A, B, or C), station number, [clock icon], and the station flashes. Switch programs by pressing the [PRG] button.
  3. Use the [plus] or [minus] buttons to change the station run time (0 to 4 hours).
  4. Press the [right arrow] button to advance to the next station.

Setting Days To Water

  1. Turn the dial to the WATER DAYS position.
  2. The display shows the last program selected (A, B, or C). Switch programs by pressing the [PRG] button.
  3. The controller displays the seven days of the week. Each day has a [sun icon] (On) or [crossed sun icon] (Off) above it.
  4. Press the [right arrow] button to activate a day for watering. Press the [left arrow] button to cancel watering for that day. The cursor advances automatically.
  5. Repeat step 4 until all desired days are selected. Selected days show a [sun icon].

Selecting Specific Days of the Week to Water

This feature uses numbered days of the month for watering (odd days: 1st, 3rd, 5th; even days: 2nd, 4th, 6th).

  1. Press the right arrow until the cursor is over SU.
  2. Press the right arrow again. "Odd" appears with a [rain drop icon]. Turn the dial to Run to select Odd.
  3. If even day watering is desired, press the [PRG] button. The [half-filled rain drop icon] and "EVEN" are displayed. You can switch between ODD and EVEN using the [plus] or [minus] buttons.

NOTE: The 31st of any month and February 29th are always "off" days if Odd watering is selected.

Selecting Interval Watering (1-31)

Select interval watering from 1 to 31 days.

  1. With the cursor on EVEN or ODD, press the [PRG] button. The 1-31 icon appears, and a "1" flashes. The interval watering schedule is displayed.
  2. Press the [plus] or [minus] buttons to select the number of days between watering (1 to 31 days). This is the interval.

The controller waters at the next start time and then at the programmed interval.

Note: To exit Interval Mode, press the left arrow button until the Day of Week display is shown.

Setting Event Day(s) Off

Program "No Water Day(s)" to inhibit watering on specific days (e.g., Saturday for mowing).

  1. Turn the dial to the WATER DAYS position.
  2. Enter an interval watering schedule as described previously.
  3. Press the [PRG] button to scroll to "No Water Days" at the bottom of the display. "Mo" will be flashing.
  4. Use the [right arrow] button to move the cursor to the desired day.
  5. Press the [PRG] button to set this day as a no water day. A [crossed rain drop icon] will illuminate over the day.
  6. Repeat steps 4 and 5 for all desired days.

NOTE: You can also program Odd or Even days off within the interval watering schedule.

Automatic Watering

After programming, set the dial to the RUN position to enable automatic execution of watering programs.

System Off

Turn the dial to SYSTEM OFF. Watering stops after two seconds. All active programs are discontinued. Return the dial to RUN for normal automatic operation.

Programmable Rain Off

Stop all programmed waterings for a designated period (1 to 7 days). Normal automatic operation resumes after the rain off period.

  1. Turn the dial to the SYSTEM OFF position. Wait for "OFF" to be displayed.
  2. Press the [plus] button as many times as needed to set the number of days off (up to 7 days).
  3. Turn the dial back to the RUN position. "OFF", a number, the [rain drop icon], and 1-31 icons will be displayed.

The days off remaining decrease at midnight each day. When it reaches zero, normal time of day and irrigation resume.

Seasonal Adjustment %

Make global run time changes without reprogramming the entire controller.

  1. Turn the dial to the SEASONAL ADJUSTMENT position.
  2. The display shows a flashing number followed by a %, and a bar graph. Press the [plus] or [minus] buttons to adjust the percentage (10% to 150%).

To view adjusted run times, turn the dial to RUN TIMES. The displayed run time updates accordingly.

NOTE: The controller should always be initially programmed in the 100% position.

When using a Hunter "Clik" weather sensor, Seasonal Adjustment can be adjusted as described. When using the Solar Sync ET sensor, Seasonal Adjustment is automatically updated daily. This value can be overridden manually, but the manually adjusted value will be replaced at midnight by the updated value from the Solar Sync sensor. To revert to manual mode, the Solar Sync sensor must be uninstalled.

Manually Run a Single Station

Turn dial to MANUAL – ONE STATION position. Station run time flashes. Use the [right arrow] button to move to the desired station. Use the [plus] or [minus] buttons to select the amount of time for a station to water. Turn the dial to RUN to water the station. The controller returns to automatic mode afterward.

One - Touch Manual Start and Advance

Activate all stations to water without using the dial.

  1. Hold down the [PRG] button for 2 seconds.
  2. This defaults to program A. Select program B or C by pressing the [PRG] button.
  3. The station number flashes. Press the [right arrow] button to scroll through stations and use [plus] or [minus] to adjust run times. (If no buttons are pressed for a few seconds, watering begins automatically).
  4. Press the [PRG] button to scroll to the desired starting station. After a 2-second pause, the program begins. During the manual cycle, use [plus] or [minus] buttons to navigate stations.

ADVANCED FEATURES

Programmable Sensor Override

Program the controller to disable watering on only desired stations (e.g., patio gardens under overhangs).

  1. Turn the dial to the RUN position.
  2. Press and hold the [plus] button while turning the dial to START TIMES position.
  3. Release the [plus] button. The display shows the station number, ON, and the [sprinkler icon] flashing.
  4. Press the [plus] or [minus] buttons to enable (ON) or disable (OFF) the sensor for the station. ON suspends irrigation; OFF allows watering.
  5. Use the [right arrow] or [left arrow] buttons to scroll to the next station.

NOTE: The controller default disables watering on all zones when rain occurs. When the X-Core receives a sensor input to disable watering, it indicates stations programmed for sensor override. Stations in override mode flash the [sprinkler icon] and [crossed sprinkler icon] alternately.

Test Program of All Stations

Run a simplified test program that operates each station in numerical sequence.

  1. With the dial in the RUN position, press and hold the [plus] button. The station number displays, and the time flashes for two seconds.
  2. Use the [plus] or [minus] buttons to set the run time from 1 to 15 minutes.
  3. After a 2-second pause, the test program starts.

Hunter Quick Check Diagnostics

Quickly diagnose wiring problems with your controller.

  1. Press the [left arrow], [plus], and [PRG] buttons simultaneously. The LCD displays all segments.
  2. Press the [PRG] button once to begin the Quick Check procedure. The system searches all stations for circuit problems. An "ERR" symbol with the station number flashes if a short is detected. The controller returns to automatic watering mode after the procedure.

Easy Retrieve® Program Memory

Save preferred watering programs for later retrieval.

To save the program into memory:

  1. With the dial in the RUN position, press and hold the [plus] and [PRG] buttons for 5 seconds. Three segments scroll across the display, indicating the program is being saved.
  2. Release the [plus] and [PRG] buttons.

To retrieve a program:

  1. With the dial in the RUN position, press and hold the [plus] and [PRG] buttons for 5 seconds. Three segments scroll from right to left, indicating the program is being retrieved.
  2. Release the [plus] and [PRG] buttons.

Programmable Delay Between Stations

Insert a delay between stations when one station turns off and the next turns on.

  1. Start with the dial in the RUN position.
  2. Press and hold the [plus] button while turning the dial to the RUN TIMES position.
  3. Release the [PRG] button. The display shows a delay time for all stations in seconds, which will be flashing.
  4. Press the [plus] or [minus] buttons to increase or decrease the delay time (0 seconds to 4 hours).
  5. Return the dial to the RUN position.

Resetting Controller / Clearing Controllers Memory

Resets the memory to factory defaults and erases all programs and data.

  1. Press and hold the [PRG] button.
  2. While holding the [PRG] button, press and release the [reset button] on the right side of the controller.
  3. Continue holding the [PRG] button until "12:00 am" is displayed (approx. 8 seconds).

CLIK DELAY INSTRUCTIONS

Clik Delay Feature

Delay programmed waterings for a period (1-7 days) AFTER a Clik Event ends. Normal automatic irrigation resumes after the Clik Delay period.

  1. Turn the dial to the RUN Position.
  2. Press and hold the [plus] button for 3 seconds, then turn the dial to the OFF position.
  3. Release the [plus] button. The display shows the programmable Clik Delay ("OFF [number]").
  4. Press the [plus] button to set Clik Delay duration (1 to 7 days).
  5. Return the dial to the RUN position. Clik Delay is set.

After a Clik Event ends (rain sensor changes from wet to dry), the Clik Delay feature becomes active, and the screen displays the Clik Delay duration. The countdown begins 24 hours after the start of Clik Delay.

An active Clik Delay can be cancelled by turning the dial to OFF, waiting for OFF to stop flashing, then turning the dial back to RUN.

Stations set to override sensor, and Lighting Programs, will operate during a Clik Delay event.

NOTE: Use caution when using the programmable Clik Delay feature with Hunter Wind-Clik®, Freeze-Clik®, Soil-Clik, and the freeze component of Solar Sync and Rain/Freeze Clik, as the Clik Delay becomes active AFTER the Clik Event from these devices.

HIDDEN FEATURES (CONTINUED)

Cycle and Soak

Split a station's run time into shorter watering durations. Useful for slopes and tight soils to prevent runoff. Enter Cycle time as a fraction of watering time, and Soak time as the minimum minutes before the next Cycle can occur. Total cycles = total programmed run time / Cycle time.

Accessing the Cycle and Soak Menu:

Place the dial in the RUN position, press and hold the [PRG] button for 3 seconds; while holding, rotate the dial to the RUN TIME dial position, then release the button.

Setting the Cycle Time:

Station 1 is displayed initially. To access other stations, press the [right arrow] or [left arrow] button. Once the desired station is displayed, use the [plus] or [minus] buttons to increase or decrease the Cycle time (1 minute to 4 hours, or OFF).

NOTE: Before 1 hour, only minutes are displayed. At 1 hour or above, the display includes the hour digit.

If a station's Run Time is less than or equal to the Cycle time, no Cycle will be applied.

Accessing the Soak Menu:

Once Cycle times are programmed, access Soak time by pressing the [PRG] button. The station remains the same. Use the [plus] or [minus] buttons to increase or decrease the Soak time (1 minute to 4 hours).

NOTE: The Soak menu cannot be accessed without a programmed Cycle time.

NOTE: When changing stations, if a station without a Cycle time is encountered, the screen reverts to Cycle time. Move to the next station with a Cycle Time and press the [PRG] button to return.

Cycle and Soak Situations:

Station 1 requires 20 minutes watering, but runoff occurs after 5 minutes. All water is absorbed after 10 minutes. Solution: Program 20 minutes run time, 5 minutes Cycle time, and 10 minutes Soak time.

The soak time is a minimum amount, potentially longer depending on remaining run times.

TROUBLESHOOTING GUIDE

Problem Causes Solutions
The controller is continuously watering Too many start times programmed Only one start time is necessary to activate a program.
No display Check AC power wiring. Correct any errors.
Display reads “No AC” No AC power present. Check if the transformer is properly installed.
Display reads “Off, [umbrella icon], [rain drop icon]” Rain sensor is interrupting irrigation or sensor jumper removed. Slide rain sensor bypass switch to BYPASS, or reinstall jumper.
Rain sensor will not shut off the system • Defective rain sensor
• Jumper not removed when sensor installed
• Stations programmed to override sensor
• Verify rain sensor operation and wiring.
• Remove jumper from sensor terminals.
• Reprogram sensor override to enable sensor.
Frozen display, or showing incorrect information Power surge Reset the controller (see "Clearing Controller Memory/Resetting the Controller").
Display shows “ERR” with a number (1 to 8) Short in valve wiring circuit, or faulty solenoid on the station number indicated. Check wire circuit or solenoid. Repair short or replace solenoid. Press any button to clear “ERR”.
Display shows “P ERR” • Faulty pump relay or master valve wiring
• Incompatible or defective relay or solenoid
• Undersized wire to pump relay or master valve
• Check wiring to relay or master valve solenoid. Press any button to clear “P ERR”.
• Check electrical specifications for pump relay. Do not exceed controller's electrical rating. Replace if defective.
• Replace wire with larger gauge wire.
Display shows a station is running but the [sprinkler icon] and [crossed sprinkler icon] icons are flashing Sensor is interrupting irrigation, but station programmed to override sensor. Check sensor override status.
Automatic irrigation does not start at start time and controller is not in System Off mode • AM/PM of time of day not set correctly
• AM/PM of start time not set correctly
• Start Time is disabled (set for Off)
• Controller not receiving AC power
• Correct AM/PM of time of day.
• Correct AM/PM of start time.
• See Setting Program Start Times.
• Check AC power connections.
Display shows dashes when dial is in Solar Sync Settings position • Solar Sync sensor not connected to controller
• Solar Sync sensor wires have break or bad connection
Connect Solar Sync to “SEN” positions on wiring terminal. Display will show Region and Water Adjustment setting.
Run times for a particular station too short/long with Solar Sync sensor Program Run Time too long/short Solar Sync provides global seasonal adjustment. Adjust program run times. Set seasonal adjust back to 100% before changing program run times.
Seasonal Adjust seems low • Region too high
• Water Adjustment too low
• Location of sensor does not allow for full sun
Increase Water Adjustment scale (default 5). If maxed at 10 and still low, move down one Region (e.g., 4 to 3) and start at Water Adjustment 5. Solar Sync updates immediately. Repeat adjustment if needed.
Seasonal Adjust seems high • Region too low
• Water Adjustment setting too high
Decrease Water Adjustment setting. If minimized at 1 and still high, move up one Region (e.g., 2 to 3) and start at Water Adjustment 5. Solar Sync updates immediately. Repeat adjustment if needed.
Solar Sync still sending Seasonal Adjust when Controller Bypass switch is in "Bypass" position Solar Sync's automated Seasonal Adjustment cannot be deactivated by the Bypass switch. Bypass switch only controls Rain/Freeze shutoff function of Solar Sync. N/A

SPECIFICATIONS

Operating Specifications

Dimensions

Electrical Specifications

Explanation of Symbols

CERTIFICATE OF CONFORMITY TO EUROPEAN DIRECTIVES

Hunter Industries declares that the irrigation controller Model X-Core complies with the European Directives for "electromagnetic compatibility" 87/336/EEC and "low voltage" 73/23/EEC.

Senior Regulatory Compliance Engineer

This product should not be used for anything other than what is described in this document. This product should only be serviced by trained and authorized personnel.

FCC part 15:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

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