Pro-C - Setting Solar Sync Region and Water Adjustment

For accurate Solar Sync measurements, the controller needs to be programmed for the average peak season ET for your region.

Use the following table for choosing your region. You can use methods A, B or C to help you choose which region is best for your area:

  • Based upon the ET of your region using the average July ET or peak summer ET (inches/mm per day). This is the preferred option when selecting your region.
  • Based upon the temperature for your region using the average July or the driest month high temperature (not the highest temperature for July).
  • Based upon the general description of your region.

If any of the choices in the rows apply to your situation, then that is your region setting choice.

REGION 1

  • If the average July ET is < 0.17" (4.3 mm) per day
  • If the average temperature for July is 65°–75° (18°C – 24°C)
  • U.S. Northern States / Coastal Regions

REGION 2

  • If the average July ET is 0.18" – 0.23" (4.6 mm ­– 5.8 mm) per day
  • If the average temperature for July is 75° – 85° (24°C – 29°C)
  • Mountains / U.S. Northern Inland States

REGION 3

  • If the average July ET is 0.24" – 0.29" (6.1 mm – 7.4 mm) per day
  • If the average temperature for July is 85° – 95° (29°C – 35°C)
  • U.S. Southern States / Inland/High Desert

REGION 4

  • If the average July ET is > 0.30" (7.6 mm) per day
  • If the average temperature for July is 95° – 105° (35°C – 41°C)
  • Deserts

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

Changing the Region Setting

Turn the dial to the SOLAR SYNC position. The display will show the Region setting on the left and the Water Adjustment setting on the right. The Region number will be flashing. Adjust the region as needed by using the   and   buttons.

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

Water Adjustment Setting

Turn the dial to the SOLAR SYNC position. The display will show the default Region setting on the left and the Water Adjustment setting on the right. The Region number will be flashing. Use the   button to advance to the right to adjust the Water Adjust setting. Adjust the water adjustment number as needed by using the   and   buttons.

If the Seasonal Adjust amount appears to be lower or higher than expected for that time of year, the Solar Sync settings need to be adjusted.

Seasonal Adjust too low: Increase the value on the Water Adjustment scale (10 is max). Once the setting is changed, the controller will immediately be updated with the new Seasonal Adjust %. Increase the Water Adjustment setting until the desired Seasonal Adjust % is shown. If you max out the Water Adjustment scale at 10 and still require more Seasonal Adjust, move down to the next lower Region (from Region 4 to 3, for example).

Seasonal Adjust too high: Decrease the value on the Water Adjustment scale (default setting is 5). Once the setting is changed, the controller will immediately be updated with the new Seasonal Adjust %. Decrease the Water Adjustment setting until the desired Seasonal Adjust % is shown. If you minimize the Water Adjustment scale down to 1 and still require a reduction in Seasonal Adjust, move up the next Region (from Region 2 to 3, for example).

NOTE: On the older model Pro-C controllers (green buttons) the Region and Water Adjustment is made on the Solar Sync Module.

Programming the Solar Sync Module - Older Model Pro-C (green buttons)

Region

For accurate measurements, the Solar Sync module needs to be programmed for the typical ET (average July ET) for your region. Press the   button until the arrow is displayed over the globe icon. Use the   or   button to select your region (regions 1 through 4).

Watering Adjustment

If you find that your landscape is "wetter" or "drier" than it should be, a watering adjustment function is provided to adjust watering equally to all stations. Use the   button until the arrow is displayed over the water icon icon. Use the   or   button to increase or decrease the amount of watering scaled 1 to 10 (1 for less water and 10 for more water). Hunter recommends observing performance carefully over the first weeks of operation before adjusting the watering.

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