Toro DDC Series Installation And Operating Instructions Manual

DDC™ Series

Dial Digital Controller

OPERATING INSTRUCTIONS

INSTALLATION AND

Thank you for choosing the Toro DDC (Digital Dial Controller)
irrigation controller. The DDC incorporates the lates programming
technology in an easy-to-use, "digital dial" display.
The following instructions will help you get started. As you
follow the simple steps, please pay attention to the important
NOTES, which will give you helpful hints and programming advice to
maximize the feature capability of the DDC.

______________________________________________________

TABLE OF CONTENTS

Installation Instructions _____________________________
Sensor Connection and Operation _____________________
Block Diagram of Programming Sequence ______________
Programming _____________________________________

- SET TIME/DAY _________________________________

- RUN TIME ____________________________________

- WATER DAYS _________________________________

- START TIMES _________________________________

- % SCALING ___________________________________

- MANUAL _____________________________________

- SEMI-AUTO ___________________________________

- SYSTEM OFF _________________________________

- AUTO-RUN ___________________________________
Self Diagnostic Circuit Breaker _______________________
About the DDC Memory _____________________________
Power Failure Indication ____________________________
Custom Watering Plan ______________________________
Electrical Specifications _____________________________

Page 3
Page 4
Page 5
Page 6

Page 6
Page 6

Page 7
Page 7
Page 8
Page 8
Page 9
Page 9

Page 10
Page 11
Page 11
Page 11
Page 11
Page 11

-2-

INSTALLATION INSTRUCTIONS:

SENSOR

MASTER

VALVE

RESET

9 volt

Battery

TRANSFORMER

Card

Quick Ref.

MULTILINGUAL
LCD INLAY -

To place or replace
look at instructions
inside the plastic bag.

DIGITAL DIAL

advancement button

RESET
BUTTON

Install in a
protected area.

COMMON TO ALL VALVES

Remove the lower cover of the DDC controller. Place the unit on the wall using the
top screw slot. Level the controller, then insert screws into the two lower screws
holes under the terminal block. Connect the solenoid wires to the terminal block.
Connect one wire from the solenoid to its respective station number on the
terminal block and the other wire to the C-common terminal. Finally, connect the
transformer wires to the 24 VAC terminal.
9 VDC battery . The 9 volt battery compartment is located between the sensor
terminal and the 24VAC terminal. The 9 volt battery powers the LCD display in the
absence of AC power and allows “Arm Chair Programming”. Program information
is retained during power outages by an on-board lithium battery.

Note: Only after all the wiring is completed and checked should the
transformer be plugged into AC power.

-3-

Sensor connection and operation:

TRANSFORMER

Card

Quick Ref.

SENSOR

9 volt

Battery

RESET

Install in a
protected area.

SENSOR

To connect a rain sensor, remove the jumper wire from the sensor terminal and
connect one wire of the Toro Rain Switch to the C-common terminal and the other
wire to the N.C. (normally closed) terminal. As soon as the Rain Switch contacts
change from the N.C. position to the N.O. (normally open) position, irrigation will
be suspended. Irrigation will resume as soon as the Rain Switch dries and its
contacts return to the N.C. position.

When irrigation is suspended due to the Rain Switch, the display shows: OFF

NOTE: When using the Toro Rain Switch, follow the Basic Connection
Installation Instructions.

-4-