15
The illustration shows the various wire runs and connections between the controller and other devices. Each
valve to be controlled by the E-Series controller should have its own, separate power wire. Connect one end of
the power wire to a numbered station terminal on the controller's terminal strip. Connect the other end of the
power wire to one of the wire leads on the valve solenoid. The wire connectors at the valves must be water-
proof.
Connect the white valve common wire to the "C" terminal on the terminal strip. The valve common wire should
follow the route out along the valve locations and should connect to the remaining wire lead on each valve.
If your system includes a master valve on its main line supply or a 24-volt-activated pump start relay (for acti-
vating a pump during irrigation) connect a wire from the device to the "MV" terminal on the controller. (The
controller does not provide the main power for a pump.) Connect the other wire lead on the device to the valve
common wire. If you are connecting a pump start relay, follow the wiring directions that came with the relay.
4. Warning for Systems Using Pump Start Relays:
If you are using the pump start/MV circuit to turn on the
pump for your system, you must connect any unused stations to the last station that does not have a valve
connected to it. For example, if you have a 6-station controller and only stations 1-4 are connected to valves in
the system, connect terminals 5 and 6 to station #4 with a short wire on the terminal strip. Then, if a prolonged
power outage outlasts the controller's memory protection, and the controller activates its default program,
when the pump and stations #5 or #6 are running, station #4's valve allows water-flow to prevent the pump
from overheating. (See previous illustration on page 14.)
5. If you are not going to connect a sensor system to the E-Series controller, you have now completed the
mounting and wiring procedures for the unit. Replace the lower access cover on the controller, and you are
ready to begin programming.
CONNECT FIELD WIRES TO REMOTE CONTROL VALVES - continued
CONNECT SENSOR
The E-Class controller is compatible with several types of rain sensors and underground moisture sensor sys-
tems.
1. To connect a sensor system to the E-Class controller, first loosen the screws at the two SENSOR positions
on the terminal strip, and remove the jumper wire connecting them.
2. Attach one wire to each of the SENSOR positions on the controller's terminal strip. Route the pair of wires
out of the controller to the sensor system. Connect the two wires to the two wire leads or terminals on the sen-
sor.
NOTE: Most sensor systems have two wire leads or two terminals designed to connect to the valve common
wire. However, you must connect these two leads or terminals to the SENSOR terminals on the E-Class con-
troller.
3. After installing the sensor system and hooking up the sensor wires from the controller, follow the sensor
system's directions for placing and connecting moisture probes or setting the rain shutoff level, and making
final adjustments.
4. After adjusting your sensor system, set the controller's SENSOR switch to the ON position. See "Moisture
Sensor Setting" on page 8 of this manual.
