Irrigation System Controller
To Valves
Pump Start Relay/
Master Valve
Common Wire From Valves
Wire Connector
1
2
3
4
C
P
24 VAC SENSOR
RED
BLACK
YELLOW
YELLOW
FIGURE 2:
b. WITH pump start relay/master valve (Fig. 2). Locate the common wire
to the solenoid valves and the common wire lead to the coil of the relay
that starts the pump . If these two wires are connected to the “common”
terminal on the controller, disconnect both of them . Twist these two wires
together along with one yellow wire from the Universal Rain Sensor and
secure with a wire nut . Attach the other yellow wire of the rain sensor to
the “common” terminal on the controller .
WIRING
For all installation methods:
Once the rain sensor receiver is mounted, run the wires to the controller using
wire clips every few feet to fasten it . If an extension to the wires provided is
needed, use the following table to determine the minimum wire gauge needed:
Extension Needed:
25-50 ft. 50-100 ft.
100 ft. or more
Minimum Wire Gauge:
20 AWG
18 AWG
16 AWG
Check to verify correct wiring:
Turn on one zone of the sprinkler system that is visible while you are in
reach of the rain sensor . Manually depress the manual test pin at top of the
rain sensor until you hear the switch “click” off . The sprinkler zone should
stop instantly . If it does not, check wiring for correct installation .
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