Rain Bird ESP-MC Installation And Operating Instructions Manual page 10

Connecting the sensor's wires to the controller
3. Route the wires out of the controller through the large hole at the bottom of the con-
troller cabinet
4.Connect the other end of the wires to the sensor's valve common terminals or wires.
5.Follow the sensor's directions for placing and connecting the sensor's probes and
for setting the shutoff level, if appropriate.
Sensor Wire Connection (Step 1):
Putting the Controller Back Together
Congratulations! You have completed the mounting and wiring of your new ESP-MC
controller. To put the controller back together:
1. Replace the controller's face plate by slipping it into the hinges.
2. Plug the two-wire connector and the ribbon cable connector back into the terminal
board.
3. Detach the recharging clip from its retainer at the back of the face plate. Snap the
recharging clip onto the 9 volt battery supplied. Then push the battery into the bat-
tery holder.
The ESP-MC fully charges the nickel metal hydride, 9 volt battery in about 48 hours
and continues to charge the battery whenever the controller is supplied with power.
The 9 volt battery provides power for keeping track of what cycle is in progress
when there is a power outage. The 9 volt battery also allows the controller to be
programmed when the face plate is detached from the cabinet. This feature lets the
installer walk a site while setting watering times and schedules.
Note: The ESP-MC also has a built-in lithium battery that provides for non-volatile
program memory.
Warning! Do not use an alkaline battery in the controller; alkaline batteries can cause
an explosion.
4.Re-attach the controller door to its hinges.
(Continued)
10