Municipios - Page 51

Rotary sprinklers require a certain amount of pressure and flow to operate properly. If the rotor does not receive the pressure it needs to pop up a leaky head will result.

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The Hunter NODE and WVC battery powered controllers can have the valve installed a maximum of 100 feet (30 m) away.

XC Hybrid Wire Sizing Chart

Below is a chart indicating maximum wire lengths when using a Hunter DC latching solenoid combined with a Hunter XC Hybrid controller.

 

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A battery-operated controller sends a quick DC pulse to operate the solenoid, therefore the battery-operated controller requires a DC latching solenoid to operate correctly. Also, the DC latching solenoid will have one black wire for the common wire and one red wire for the station wire. It is important that the wires are connected correctly for proper operation. Black connected to the C or COM (common) terminal inside the controller, and the red wire connected to the appropriate station terminal.

 

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While most of the time the distance between the controller and pump start relay doesn't create any problems, every once in a while the wires on the 24V coil can allow electromagnetic noise to travel back to the controller. This noise is made when the contacts on the pump start relay make and break the connection.

It's recommended to use a minimum distance of 15ft (4.5m) separation between the controller and the relay, to help dampen any electromagnetic noise.

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There are three possible reasons:
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A controller with a partial or blank display usually has damage to an electronic component on the internal circuit board. Normally this type of damage cannot be repaired. If the controller was installed outside be sure that the door remains closed completely when left unattended. Moisture intrusion is one of the more common reasons this problem may occur.

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The "NO AC" or "Blank" display is a diagnostic message telling you that the controller has stopped receiving AC power. For the "NO AC" message, the controller is most likely running on the power supplied by the backup battery.

Check the power source by plugging a lamp or radio into the wall outlet to verify there is power at the outlet. If your controller is not plugged into a wall outlet, the power source is hardwired.

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There are a number of reasons why the sprinklers may not come on from the automatic program. Assuming the controller will run the zones from the controller manually, you most likely have a programming issue.  Below are a few possible causes to the watering cycle not starting:

Check the Programming:

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Here are some tips for valve repair.

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There are two reasons why your sprinklers would continue running:

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