Connecting A Toro Rain Switch
(Optional)
The Toro Rain Switch is a remote rain sensor which can be connected directly to your GreenKeeper 212 to auto- matically interrupt watering during rain.
A sensor bypass switch is provided which enables the Rain Switch operation to be turned On and Off.
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When the Rain Switch absorbs rain water it automatically signals the GreenKeeper 212 to suspend all watering operations. The “No Watering” symbol
will appear in the upper right corner of the display until the Rain Switch drys out and automatically resets. The “No Watering” symbol will disappear and controller operation will resume as programmed.
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1.Route the wire cable from Toro Rain Switch into the controller housing with the valve wires.
2.The Rain Switch cable has four wires: two copper wires and two silver wires. Only two of the wires are used. Connect the heavier 18 AWG (0.75mm2) copper wire and the thin 24 AWG (0.50mm2) silver wire to the terminals labeled SENSOR (11). Trim off the remain- ing two cable wires.
3.Set Sensor Switch (10) as required: ON allows the Rain Switch to interrupt watering; OFF bypasses the Rain Switch input.
Note: The Toro Rain switch is a normally closed device. To install a normally open Rain Switch, refer to the instructions provided with the device and and install accordingly.
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