Connecting the field wiring, Connecting a rain switch sensor – Irritrol IBOC-Plus User Manual

Page 20

Note: When connecting the DC latching solenoid to the controller,

unlike an AC solenoid which has no specific wiring polarity, the DC

latching solenoid has a power and a common wire. To enable valve

operation, the black wire must be

connected to the valve common and

the red wire to a valve output

terminal. Ensure the solenoid is

assembled with the red and black

wires oriented as shown in Figure 4.

CONNECTING THE

FIELD WIRING

Note: Refer to the recommended

wire size information on page 25.
1. To provide a field common wire, splice one wire to the black wire of

each valve solenoid and optional master valve.

2. Attach a separate control wire to each red valve solenoid wire. Label

the control wires with the intended station number for identification

at the controller.

Caution: All wiring splices must be waterproofed to prevent

short circuits and corrosion.

3. Route all field wires into the controller cabinet through the

2" (52mm) access opening. Remove approximately 1/2" (13mm)

insulation from the ends of each wire.

4. Attach the field common wire to one of the three valve common

terminals labeled “Valve Com.” See Figure 5.

5. Connect each valve control wire to a separate station number

terminal (1-12) and tighten securely. See Figure 5.

6. Connect the Master Valve wire to the terminal labeled MV/Pump.

CONNECTING A RAIN SWITCH SENSOR

The IBOC Plus is designed for use with a normally closed rain sensor

or “Rain Switch.”
Connect a rain switch sensor as follows:
1. Route the two wires from the sensor into the cabinet through the

field wire access opening.

2. Connect the wires to the terminals labeled “Rain Sensor.” See

Figure 5.

Installation Procedures

Figure 4

AC Solenoid

DC Latching
Solenoid

(Top View)

Red

Black