Hunter Technical Support Document
ON-AUTO-OFF Selection - Electric VIH Models
Electric Valve-In-Head TTS rotors are equipped with a selector to control operation of the rotor. The selector is located on the flange compartment’s lid. From the factory, the selector is set to the AUTO position which is located midway between the ON and OFF positions (fig 1).
Several tools are available to make ON-AUTO-OFF selections:
• T-Handle Tool – PN 053191
• Hunter Wrench – PN 461720
• Snap-ring Tool – PN 052510
The ON-AUTO-OFF selector’s function and recommended operation is as follows:
AUTO – The selector comes from the factory in the AUTO position. When in this position, the rotor will not activate unless the controller sends 24 volts of power to the rotor’s solenoid. (fig 1)
OFF – Using one of the tools listed above, turning the selector approximately ¼ turn clockwise from the AUTO position will manually deactivate the rotor. In the OFF position, (fig 2) the rotor will not activate even if the controller sends 24 volts of power to the rotor’s solenoid. To restore activation by the controller’s programming, return the selector to the AUTO position.
ON – Using one of the tools listed above, turning the selector ¼ turn counter-clockwise from the AUTO position will manually activate the rotor. (fig 3) The rotor will continue to operate until the selector is returned to the AUTO or Off position. De-activation of the sprinkler may take several seconds.
Caution! Do not over-tighten the selector when turning to the manual OFF position. Turn only until resistance is felt.
Over-tightening can cause premature failure of the solenoid’s plunger seal and lead to the rotor leaking water in the AUTO position.