Toro TMC-212 manual Connecting a Rain Sensor optional, Important Do not use ENB and NC switch

Connecting the Power Source (cont.)

Toro Rain Sensor

Model TWRS

5	Plastic
	Insert

6

Connecting a Rain Sensor (optional)

A rain sensor is an optional control device that connects directly to the TMC-212 to automatically interrupt auto- matic controller operation during rain.

A sensor bypass switch is provided to enable sensor operation to be disabled as needed.

A sensor configuration switch enables the controller to work with a normally-open or normally-closed rain sensor. When the rain sensor absorbs moisture it signals the TMC-212 to suspend automatic watering operations. The no Watering symbol is displayed until the sensor drys out and automatically resets.

When the no Watering symbol disappears, controller operation will resume as programmed.

1.Route the sensor wires into the controller housing through the access hole provided.

2.Release the Sensor terminal connectors and remove the plastic u-shaped insert. Connect the sensor wires per the instructions provided with the sensor.

3.Set the Sensor configuration switch (6) to NC (normally Closed) or NO (normally Open) as required by the sensor type installed.

	IMPORTANT: Do not use ENB and NC switch
	position simultaneously unless a Normally Closed
	rain sensor is connected. Watering operation will
	be suspended if this condition occurs.
4.	Set the Sensor control switch (5) as required: ENB
	(enable) allows the rain sensor to interrupt watering;
	DIS (disable) bypasses the rain sensor input.
5.	Refer to the instructions provided with the rain sensor	13
	for complete setup and operating information.