Normally Open
Master Valve
Power Supply
(Appropriate for Master Valve)
Typically 24V DC
(COM)
(Line)
Relay 1 NO
Relay 1 NC
Relay 1 COM
Relay 2 NO
Relay 2 NC
Relay 2 COM
Relay 3 NO
Relay 3 NC
Relay 3 COM
Relay 4 NO
Relay 4 NC
Relay 4 COM
Pulse 1 OUT
Pulse 1 OUT
Sensor Input Card
Red Label
14 Pin Connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Indicator Light
or other
Signaling Device
Figure 7: High flow shutdown and normally open master valve
Normally Closed
Master Valve
Irrigation Controller
(COM)
(Master Valve Out)
Relay 1 NO
Relay 1 NC
Relay 1 COM
Relay 2 NO
Relay 2 NC
Relay 2 COM
Relay 3 NO
Relay 3 NC
Relay 3 COM
Relay 4 NO
Relay 4 NC
Relay 4 COM
Pulse 1 OUT
Pulse 1 OUT
Sensor Input Card
Red Label
14 Pin Connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Indicator Light
or other
Signaling Device
NOTEE: Relay pregrammed for the desired Set Point and Set Delay, and LATCHED.
Under normal conditions, the relay simply passes the commands of the irrigation controller through the Normally Open contact.
However, once tripped, the Irrigation Controller signal is simply passed to the signalling device to warn the operators.
Figure 8: High flow shutdown with irrigation clock and normally closed master valve
Installation
Page 10
October 2017
CTL-UM-01026-EN-05
