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To connect the power input wires to the main power source,
1.
Connect a junction box to the transformer nipple. To do this, place the junction box
on the nipple, then thread the washer on. Twist it to tighten.
2.
If you have the standard 117 volt, 60 Hz model, use wire nuts to connect the black
wire to the power source hot wire, the white wire to the common wire, and the green
wire to the ground wire.
OR
If you have a 230 volt, 50 Hz model, use wire nuts to connect the black wire to the
power source hot wire, and the white to the power source common wire. Connect
the green and yellow wire to the ground wire.
3.
Close the junction box.
4.
Install a conduit for the wires from the power source to the junction box.
Main Power Wire Connections:
Connections to an Optional Sensor
The ESP-MC controller allows you to connect an optional sensor. The ESP-MC works
with any open or closed switch sensor such as the Rain Bird Raincheck.
Important:
The wires you use to connect the controller to the sensor must be ap-
proved for underground use. See the Rain Bird catalog for exact wire specifications.
Important:
The sensor wires should be installed in a conduit other than the one that
contains the wires to the main power source.
To connect the sensor’s wires to the controller:
1.
Remove the yellow jumper wire between the two sensor terminals.
2.
Strip 1/2” (1.3 cm) from the end of the sensor wires. Insert one wire to each of the
sensor terminal holes. If the wire does not enter securely into the hole, press down
on the orange lever as you insert the wire.