Connecting A Pump Start Relay; Sensor Installation - Irritrol LIFE Plus Controller 4 Manual Del Usuario

LIFE Plus Controller 4-8-12-16

Connecting a Pump Start Relay

(*) CAUTION: To prevent controller damage, ensure the pump start relay current
draw is between 0.15 and 0.3 amps. Do not connect the pump motor starter
directly to the controller.
1. Connect a wire pair to the 24 V a.c. pump start relay. Route the wires into the
controller housing with the valve wires.
2. Connect one wire to the terminal labeled COM.
Connect the remaining wire to the terminal labeled MV. See Figure 3.
(*) CAUTION: To prevent pump damage due to "Dead-heading", connect a jumper wire
from any unused station terminal to a station terminal with a valve connected. See
Figure 3.
Figure 3
8

Sensor Installation

A sensor can be connected directly to the Life Plus Controller to automatically
perform direct control on irrigation programs. When the Sensor is Active the display
will show .
1. Route the wire cable from the rain switch sensor into the controller along with the
valve wires.
2. Remove the jumper wire from the sensor terminals.
3. Referring to the instructions provided with the rain sensor, connect two wires
from the rain sensor designated for "Normally Closed" applications to the sensor
terminals. See Figure 4.
Note: Life Plus Controller can be set to accept a Sensor with a Normally Open switch.
See Sensor Settings for more details.
Figure 4