ACC2 Decoder
BUILT TO COMMAND
EVEN THE LARGEST PROJECTS
Quick Start Guide
POWERFUL. INTELLIGENT. FLEXIBLE.
THE ACC2 CONTROLLER DELIVERS ADVANCED WATER MANAGEMENT
TO MEET THE DEMANDS OF LARGE-SCALE COMMERCIAL PROJECTS.
TABLE OF CONTENTS
ACC2 Decoders ................................................... 4
Important Connections and Tips .................. 4
Facepack ............................................................... 4
Reversing the Facepack .................................... 4
Connecting and Disconnecting the Facepack .5
SyncPort™ Connection ......................................5
SD Card Reader ...................................................5
Battery..................................................................5
External Components ......................................... 6
Front Door ........................................................... 6
Face Frame .......................................................... 6
Facepack.............................................................. 6
Face Frame Latch ............................................... 6
Facepack Cable ................................................... 6
Spare Decoder Fuses and Tool ......................... 6
Spare Fuse Holders ............................................ 6
Wall Mount Bracket ........................................... 6
Wire Ties for Strain Relief .................................. 6
Internal Components .......................................... 6
PCU Board ........................................................... 6
Slide Lock ............................................................ 6
Output Module Slots ......................................... 6
Flow Expansion Slot ........................................... 6
Earth Ground Lug ............................................... 6
Transformer Assembly ...................................... 6
Wiring Compartment Cover ............................. 6
Power Supply Board .......................................... 6
Flow Sensor Inputs............................................. 6
Status Light ......................................................... 6
Programming Port ............................................. 6
Decoder Output Module Lights ....................... 8
Wire Ties .............................................................. 8
Transformer Fuse ............................................... 8
Flow Expansion Module .................................... 8
Field Wiring .......................................................... 9
Troubleshooting
Need more helpful information on your product? Find tips on installation,
controller programming, and more.
hunter.direct/acc2
1-800-733-2823
Operating the Controls ...................................10
Attention Messages ........................................10
Start-Up Screen ..................................................10
View Messages ....................................................11
Clear Messages ...................................................11
View Logs ............................................................. 11
Home and Activity Screens ............................11
Activity Screen.................................................... 12
Basic Programming and Setup ....................13
Names .................................................................. 13
2 hunter.direct/ACC2help
Settings, Time/Date ......................................... 13
Pump/Master Valve Setup ...............................14
Manual Starts and Test .....................................15
Stop Commands .................................................15
Programs .............................................................16
Start Times .........................................................16
Intelligent Current Sensing ............................ 17
Run Times .......................................................... 17
Water Days ........................................................ 18
Seasonal Adjust .................................................18
Program Rules ...................................................19
Ignore Calendar Days O ...............................19
No Water Window (Start and End)................19
Station Delay (Delay Between Stations) ......19
Calendar Days O .............................................. 19
Program Summary ...........................................19
P/MV Operation (Pump/Master Valve
Operation) ..........................................................20
Sensors ...............................................................20
Clik Sensors ....................................................... 20
Sensor Response ............................................... 21
Solar Sync ........................................................ 22
Flow Sensors ..................................................... 22
Stations Menu .................................................. 23
Station Setup ..................................................... 23
Cycle & Soak ....................................................... 24
Blocks .................................................................. 24
Station Limits ..................................................... 25
Station Summary .............................................. 25
Devices Menu ................................................... 26
P/MV Operation ................................................ 26
Flow Sensors ...................................................... 26
Solar Sync .........................................................26
Clik Sensors ........................................................26
Sensor Response ............................................... 26
Flow Menu ......................................................... 27
Clear Flow Alarms ............................................. 27
Settings Menu ................................................. 27
Time/Date ......................................................... 27
Regional Settings .............................................. 27
User Management ............................................ 28
Networking ....................................................... 28
Diagnostics Menu............................................ 29
View Logs ........................................................... 29
Alarm Logs ........................................................ 29
Controller Logs ................................................ 29
Station Logs ...................................................... 30
Filter Logs ..........................................................30
Export Logs ....................................................... 30
Module Info ........................................................ 30
Clik Sensor Diagnostics ................................... 30
Station-P/MV Diagnostics ............................... 31
Flow Sensor Diagnostics .................................. 31
Solar Sync Diagnostics .....................................31
Decoder Diagnostics ......................................... 31
Advanced Features ......................................... 32
Export Logs ........................................................ 32
Easy Retrieve ..................................................... 32
Reset Memory ................................................... 33
Firmware Update .............................................. 33
Conditional Response ....................................... 33
Flow Operations ...............................................34
Flow Manager .................................................... 34
Flow Monitor ...................................................... 34
MainSafe™ ........................................................34
Set Up Flow Monitor ......................................... 35
Flow Zones ........................................................ 35
Flow Map ......................................................... 35
Flow Limits ...................................................... 36
Flow Allowances ............................................. 36
Station Setup .................................................... 37
Station P/MV Usage ...................................... 37
Flow Zone ........................................................ 37
Flow Priority .................................................... 37
Flow Measurement Settings ........................ 37
Copy and Paste ............................................... 37
Learn Flow ......................................................... 38
Schedule Flow Learning ................................ 38
Hydraulic Summary ......................................... 39
Flow Totals ........................................................ 39
View Flow ..........................................................40
Flow Alarm Handling ........................................40
Station-Level Alarms ........................................ 41
Flow Zone or MainSafe™ Alarms ..................... 41
Set Up Flow Manager ....................................... 42
Flow Zones ........................................................ 42
Flow Target ...................................................... 42
Station Setup ....................................................43
Flow Zone ........................................................ 43
Flow Priority ......................................................43
Flow Rate .........................................................43
Station Limits ....................................................44
MainSafe™ .........................................................44
Setup Screen .................................................... 45
Flow Limits Screen ........................................... 45
Maximum Flow ............................................... 45
Unscheduled Flow ..........................................45
Alarm Delay ..................................................... 45
Alarm Clear Delay ........................................... 45
Allowances Screen ...........................................46
Monthly Budget .............................................46
Manual Watering Allowance ......................... 46
Conditional Response .................................... 47
Set up a Conditional Response ....................... 48
Conditional Response Types ...........................49
SOS (Status Output Station) ........................... 50
Set up an SOS station .................................... 50
Start Stations, Programs, and Blocks ............50
Mode ................................................................ 50
Sw it ch P/MVs ....................................................51
Decoders Menu ................................................ 52
Program Decoder .............................................. 52
Serial Number ................................................... 52
Decoder Type .................................................... 52
Power Factor ..................................................... 52
Inrush ................................................................. 52
Output-Station ................................................. 52
Programming Station Decoders ................... 53
Programming Pump/Master Valve (PMV)
Decoders .......................................................... 53
Programming Sensor Decoders .................... 54
Programming Decoders via the Two-Wire
Path .................................................................... 54
View Conguration ........................................... 55
View Status ........................................................ 55
Decoder View .................................................... 55
Station Assignments ........................................ 56
Decoder Diagnostics ......................................... 56
Station Finder ................................................... 56
Wi re Te st ........................................................... 57
Decoder Inventory ............................................ 57
Filter ................................................................... 58
Comm % ............................................................. 58
Update Available ..............................................58
Export Inventory .............................................. 58
Refresh Inventory ........................................... 58
Clear Inventory ................................................. 58
Update Decoders ............................................... 58
Troubleshooting ............................................... 59
Built on Innovation® 3
Important Connections and Tips
ACC2 Decoders
ACC2 Decoder is designed to operate
Hunter ICD decoders. The ICD decoders
must be programmed with station numbers
before they will operate. See the Decoder
menu for detailed instructions on decoder
programming.
ACC2 Decoder is very similar to the
conventionally wired ACC2 controller, with
an additional Decoder menu for all unique
decoder functions and diagnostics. Some
devices (Pump/Master Valves and sensors) may be assigned
to decoder locations, and those individual setup screens now
include this option.
Important Connections and Tips
FACEPACK
“Facepack” is a Hunter term for the enclosed, removable
control panel and display assembly. It contains the brain and
memory of the controller.
REVERSING THE FACEPACK
The ACC2 facepack and controls can be reversed in the door
frame, so they can be operated with the door open while
looking at the modules and wiring.
1. Pull the facepack away from the face frame. The facepack
is held in place by a magnet.
2. Pass the facepack through face frame.
3. Slide the facepack into the back side of the face frame
as shown.
4. Tilt the facepack into position; it will click into place and be
held securely by the magnet. Tuck the ribbon cable slack
into the provided pocket.
When the facepack detects that it is reversed, it will
automatically go to the Diagnostics, Module Info display. It
is possible to navigate to any other screen from this display,
including programming and manual operations.
The controller will water automatically with the
facepack in either position.
4 hunter.direct/ACC2help
Important Connections and Tips
CONNECTING AND DISCONNECTING THE FACEPACK
The facepack cable connection is located just below the light
on the Power Supply Board. Turn power to controller o
before connecting or disconnecting the facepack.
SYNCPORT™ CONNECTION
The SyncPort connection is a proprietary Hunter connection
for external interface devices. It is located near the top of the
Power Supply Module.
SyncPort
Facepack Cable Connection
Do not attempt to connect the facepack cable to
this port. The connector has a protective cover
that should be le in place until the connection
is needed.
BAT TERY
The facepack has a replaceable internal lithium battery in the
side of the facepack to back up date and time settings during
power outages (Program settings and other data are nonvolatile and do not require battery backup). The battery may
last the life of the controller, but is easily replaced if necessary.
Use a standard CR2032 replacement if necessary. Be sure to
place the + side of the battery correctly.
If power to the controller is le o for extended
periods, the battery will be consumed more quickly.
Consult the connecting device’s manual for additional
instructions regarding SyncPort.
SD CARD READER
The bottom edge of the facepack includes a built-in SD card
reader. The controller is supplied with an SD card.
The SD card can:
• Upload updated rmware (saved from email or the
hunterindustries.com website) to the controller and all
its modules.
• Store logs, Easy Retrieve backups, and other information
for use later or on another device. See the Advanced
Features menu on page 32.
Built on Innovation® 5
Components
EXTERNAL COMPONENTS
FRONT DOOR
FACE FRAME
FACEPACK
FACE FRAME LATCH
FACEPACK CABLE
SPARE DECODER FUSES AND TOOL
SPARE FUSE HOLDERS
WALL MOUNT BRACKET
WIRE TIES FOR STRAIN RELIEF
INTERNAL COMPONENTS
PCU BOARD
SLIDE LOCK
OUTPUT MODULE SLOTS
FLOW EXPANSION SLOT
EARTH GROUND LUG
TRANSFORMER ASSEMBLY
WIRING COMPARTMENT COVER
POWER SUPPLY BOARD
FLOW SENSOR INPUTS
STATUS LIGHT
PROGRAMMING PORT
FACEPACK CABLE
The facepack cable connection is located beneath the
Status Light. It is a standard connector with a locking
lever on one side, which must be pressed in to remove the
cable.
SPARE DECODER FUSES AND TOOL
ACC2 Decoder is shipped with spare 20A automotive
fuses and a fuse pulling tool. These are only for use as
replacements in the decoder output modules, to enhance
surge protection on the eld wiring. Replacements can be
purchased at most automotive parts stores.
PCU BOARD
The replaceable PCU (Power Conditioning Unit) board
has only a single screw and can be replaced if necessary.
The board plugs directly into the back plane. This board
contains components that are used by all decoder output
modules, and the status LED indicates whether the board
has power and is operational.
SLIDE LOCK
The slide lock secures the decoder output modules in
place. When it is open, power is o to the facepack, and an
orange indicator is shown. The controller will not operate
if the slide lock is open, and the Status LED will ash
orange to indicate this condition.
EARTH GROUND LUG
A heavy-duty earth ground lug is provided for lightning
and surge protection. This connection is for equipment
safety only. It should always be connected with heavy
copper wire to approved grounding hardware buried in the
earth at least 8' (2.5 m) away from the controller, and as
far as possible away from the two-wire paths.
Generally, earth ground hardware consists of an 8'
(2.5 m) copper-clad steel rod driven all the way into earth,
or a 8' (2.5 m) x 4" (100 mm) wide copper plate, or both,
or comparable earth grounding hardware as approved by
local code.
Do not connect the primary AC power earth ground wire
to this lug. ACC2 provides safety ground connection inside
the transformer wiring compartment.
Decoder wire paths also require additional earth
grounding every 1,000' (300 m), or every 12 decoders, at
minimum. ICD decoders include built-in surge protection,
with a bare copper wire for connection to earth. In highlightning areas, ground more frequently.
Decoder earth ground should meet the same specication
as the controller ground: 8' (2.5 m) copper-clad steel rod
driven all the way into earth, or a 8' (2.5 m) x 4" (100 mm)
wide copper plate, located at right angles to the two-wire
path, at least 8' (2.5 m) away from the two-wire path.
6 hunter.direct/ACC2help
Components
POWER SUPPLY BOARD
The Power Supply Board, in the upper le corner of the
cabinet, is a vital component, and includes connections
for external sensors, Pump/Master Valve outputs,
Common wire connections, and more. The Power Supply
Board is also designed for convenient replacement, if
necessary. Three captive screws (#2 Phillips) secure the
board. Two modular wiring plugs connect the board to the
controller.
FLOW SENSOR INPUTS
Flow Sensor connections have DC voltage and polarity.
When connecting a DC ow meter, verify that the positive
lead from the sensor is connected to the red terminal, and
the negative sensor is connected to the black terminal.
There are three ow sensor inputs on the Power Supply
Board. The optional A2C-F3 ow expansion module
can add up to three more for a maximum of six ow
sensor inputs.
STATUS LIGHT
The Status Light is green to indicate power and correct
operation. If the light is orange, there is a problem.
Solid orange detects an issue within the Power Supply
Board itself.
Flashing orange indicates that one of the two slide locks
is open. The controller will not function unless both slide
locks are in the closed position.
PROGRAMMING PORT
The programming port is used to program station
numbers into the decoders. ICD decoders must be
programmed before they will operate. Reverse the
facepack for easiest operation, go to the Decoder menu,
and select Program a Decoder. Insert the red and blue
wires from the decoder (doesn’t matter which goes
where), and use the menu to select the station numbers
and program the decoder.
Built on Innovation® 7
Decoder Wiring and Tips
DECODER OUTPUT MODULE LIGHTS
Each decoder output module is equipped with diagnostic LED
lights. Each light is labeled on the deck lid.
Symbol Activity Type Color and Meaning
Decoder fault
Module or line
activity
Communicating
Blinking red:
Decoder has an over-current
or overload
Blinking green:
Station active
Blinking red:
Line overload (wire path short)
Also blinks during decoder
update
Blinking green:
Two-wire communications
Blinking amber:
Programming port
communications
WIRE TIES
Wire tie holders are molded into the lower back of the
wiring compartment to secure eld wiring with plastic zip
ties. This provides a strain relief to keep eld wires from
pulling downward on the modules, and keeps the inside
neat and organized.
Additional wire tie holders are provided near the Power
Supply Board for sensor and other connections.
TRANSFORMER FUSE
The transformer uses a replaceable 5 x 20 mm electrical fuse,
located next to the convenient on/o switch. Two spare fuses
are stored in the bottom rear of the facepack frame, under the
sticker labeled “Spare Fuse.”
Replacement fuses are a standard glass body 5 x 20 mm
250V, 2A fast blow, available online or from electronic
appliance retailers and hardware stores.
FLOW EXPANSION MODULE
A2C-F3 ow expansion modules add three additional
hardwired ow inputs to the controller. These modules
may only be added to the lower right module slot, one per
controller, and it is the only module that will t in this slot.
The ow expansion module has DC voltage and polarity,
and the + (or red) connection from the ow sensor must
be connected correctly to the + (positive) terminals on the
module. Finish ow expansion in the Devices, Flow Sensors
menu aer installing the module.
ACC2 Decoder controllers may also read up to six ow sensors
via the two-wire paths using ICD-SEN sensor decoders. The
controller may use any combination of hardwired inputs to
ow terminals, or connection by sensor decoders.
Solid amber:
Wire test mode
Blinking green:
Module damaged (replace)
Line status
Solid green:
Line is OK
O:
No power to module
8 hunter.direct/ACC2help
FIELD WIRING
Proper installation and connection of the decoder two-wire
paths is very important.
• Use only Hunter IDWIRE or an approved substitute.
• Use only Hunter DBRY-6 waterproof connectors in the red
and blue two-wire path connections.
• Leave adequate slack (about 5' or 1.5 m) at each splice, to
prevent disconnection.
Each A2C-D75 output module supports up to 75 decoder
stations.
• Each module allows up to three two-wire path connections.
• Each path may be up to 10,000' (3 km) with 14 AWG
• Two-wire paths may be tee-spliced (in a valve box with
2
(2 mm
) wire, or up to 15,000' (4.5 km) with 12 AWG
(approximately 3.31 mm
2
) wire.
approved connectors), as long as the maximum distance to
each end of the paths from the controller does not exceed
the maximum for the wire used.
Decoder Wiring and Tips
You can have more than 75 stations on a single two-wire path.
If more than one A2C-D75 is installed, it is possible to assign
the additional station numbers to another decoder output
module. This must be done with the Station Assignments
function on the Decoder menu, so the controller will know
which module has the additional stations.
Built on Innovation® 9
Operating the Controls
Operating the Controls
ACC2 has a simple control panel with unique operating
features. The dial is used to rotate through selections, and
then pushed to select, or to enter information.
1. The dial is used to rotate through selections and then
pushed to select, or to enter information.
2. To the right of the LCD display are four so keys. Their
functions will change with each menu selection, as shown
in the ACC2 display.
3. Back always goes back up a level from the current menu
selection.
4. Home will always return you to the Home screen view.
Home screen shows the status of the controller, including
anything currently running in the eld. When in the Home
screen, the bottom so key is called Main Menu, and this
takes you to all programming and setup functions.
From the Main Menu button, you may enter the setup menus
for all ACC2 functions. Turn the dial to view the main menus,
and press the dial to select one of them. Then, the dial is used
to select the items within that menu. Press to select one.
Once you’ve entered a programming screen, the dial is used to
navigate through all the elds of information. Press to select
one, rotate to see the choices or enter numbers or letters, and
press to select.
Attention Messages
A new controller installation will begin with at least one or two
Attention messages, because the controller has experienced
a power outage during shipping, and may be discovering new
modules. This is normal.
STARTUP SCREEN
When power is rst turned on (either with the power switch,
or closing one of the slide locks), the Hunter logo screen
appears, and the controller begins searching for any irrigation
events it may have missed during a power outage.
This search can be canceled if you are installing or servicing
the controller by pressing the Home button on the facepack.
Press Home at any time to return to the top level, or to
navigate to other functions.
If the controller nishes searching for missed events (about
1 minute), it will resume irrigating where it should be at the
current time of day.
In automatic operations, the controller will always perform
the search aer any power outage. Watering that was missed
during the outage will be recorded in the logs, and the
watering will resume where it should be at the time of the
power restoration.
10 hunter.direct/ACC2help
Home and Activity Screens
VIEW MESSAGES
Messages on the screen do not interfere with normal
irrigation.
A ashing alarm symbol at the bottom of the display indicates
that something unusual has been detected. When the symbol
is ashing, a so key will link to View Messages. Press the key
to view the most recent messages in the Attention screen.
From the Attention screen, you can View Logs to get more
details about the messages and/or Clear Messages to return
to the Home screen.
CLEAR MESSAGES
Attention messages in the display can be cleared by pressing
the Clear Messages so key, aer pressing View Messages.
The message will still be available in the controller’s logs.
Attention messages do not prevent watering or normal
operation. However, they may announce a condition that can
prevent or aect watering.
VIEW LOGS
Press View Logs for more detailed information about each
message.
The so keys will link to the Alarm, Controller, and Station
logs when an attention message is displayed. The Filter Logs
function will allow you to search for logs on a specic date, or
by record number. You can also access logs at any time from
the Diagnostics menu.
Home and Activity Screens
Home screen oers basic information and so key shortcuts
to common functions.
System status is shown in the upper right.
Current date and time are displayed in the bottom le border.
If Solar Sync is installed and enabled (Devices menu), the
Solar Sync symbol shows the current adjustment percentage
in the lower right of the border.
If the red-and-white ! triangle symbol ashes in the lower
right corner, the controller has detected an important
situation. A so key will change to View Messages, for more
information about the condition. The messages screen
permits clearing the message, or a shortcut directly to the
View Logs function for more details. Messages on the screen
do not interfere with normal irrigation.
If sensors are active (alarmed), this is shown in red text in the
upper right corner.
Built on Innovation® 11
Home and Activity Screens
ACTIVITY SCREEN
When the controller is running stations, the Home screen
becomes the Activity screen, with additional information and
functions.
All running stations are displayed, along with the program
that is running them, the mode in which they are running, and
the amount of run time remaining on the station.
Individual items may be selected directly from the activity
screen and stopped without aecting other irrigation. See the
Selective Stop section on page 16.
The so keys normally show Stop, Manual, View Flow (shows
current ow, if a ow sensor is installed and enabled), and
Main Menu. Stop and Manual are described in the Basic
Programming section. View Flow is described in detail in the
Flow Operations section.
12 hunter.direct/ACC2help
Basic Programming and Setup
Basic Programming and Setup
NAMES
ACC2 allows items to be named with an on-screen keyboard
that appears in the Name eld (or from a mobile device, if the
optional Wi-Fi module is installed). Names are useful in large
systems, especially in the more advanced Flow Operations.
Select the Name eld for any of these components, and a
keyboard will appear to enter an alphanumeric name.
SETTINGS, TIME/DATE
From the Home screen, press Main Menu, and dial to Settings.
Select Settings, and dial to Regional Settings.
Choose language, time and date formats, and units of
measurement. Press Back or Home to exit.
From the Settings menu, choose Time/Date: Set the current
time and date, and also Daylight Saving options. Press Back or
Home to exit.
Items that can be named are:
• Programs
• Stations
• Blocks
• Clik Sensors
• MainSafe™ zones
• Flow Zones
Built on Innovation® 13
Basic Programming and Setup
PUMP/MASTER VALVE SETUP
In the decoder controller, P/MV outputs can be assigned to
either direct terminals in the controller, or to ICD-100 station
decoders.
P/MV outputs 1 through 3 refer to the output terminals on
the Power Supply Board, unless they are changed to decoder
locations. P/MV outputs 4, 5, and 6 must be assigned to
decoders.
All P/MV outputs are set to Normally Closed operation,
but they can be changed to Normally Open functions in
the Devices menu. See the P/MV Operation section
on page 20.
14 hunter.direct/ACC2help
Basic Programming and Setup
MANUAL STARTS AND TEST
On the Home screen, the Manual so key lets you start
stations, programs, or a Test program. Once you press
Manual, there are three choices:
MANUAL STATIONS
Specify one or more stations to run and enter a run time for
them. You can also choose to run them simultaneously, rather
than sequentially, if you check the Simultaneous box. Press
the Start key to start the list.
MANUAL PROGRAM
Select a program number to start, and press the Start key
to start it. It is also possible to scroll down to an event in the
program, and start the program from that point forward.
STOP COMMANDS
Any running irrigation can be stopped immediately from the
Home screen. The top so key oers the following choices for
stopping irrigation:
STOP ALL IRRIGATION
This immediately stops everything that is watering or running.
The controller is still in Automatic irrigation mode, and will
resume watering at the next start time.
TIMED OFF
Like System O, this stops all stations and prevents automatic
irrigation, but for a specied period of days. When the
days have counted down to zero, the controller will resume
automatic operations.
A Manual Station or Program Start will pause any automatic
watering until the Manual Program has completed.
TEST PROGRAM
The Test program will run all stations in the controller for the
Run Time entered on the screen. It is also possible to specify
a station number, and run all remaining stations from that
number to the highest numbered station.
In the ACC2 Decoder controller, the Test Program will only run
stations that already have a run time in other programs in the
controller.
PAUSE
This interrupts whatever is currently running, until either
Resume is pressed or 30 minutes have passed. Anything
running will be resumed where it le o, and run for its
remaining time. When items are paused, the Resume button
will appear.
SYSTEM OFF
This turns o all irrigation, and places the controller in
permanent O mode. No automatic irrigation will occur.
Built on Innovation® 15
Basic Programming and Setup
PROGRAMS
STOP COMMANDS CONTINUED
SELECTIVE STOP
You can also use the dial to scroll through the list of running
stations and programs on the Home screen and click to stop
any one of them instead of the entire list. If you highlight an
active station, the Stop button will allow you to Stop Station,
or Stop Program. Stop Program will stop the entire program
that caused the station to run, but allows other programs to
keep running.
From Main Menu, dial to the Programs menu and select. This
is where basic automatic irrigation is set up.
A basic program requires Start Times, Run Times, and
Water Days to operate automatically. There are 32 possible
automatic irrigation programs, each with up to 10 Start Times.
START TIMES
Verify that you have the correct program number, or select
and enter the program you want.
• Name (optional): You may enter a name for the program if
you wish.
• Run Mode: This must be set to Auto to run automatically.
- Manual Only: The controller does not water
automatically, but stores station run times for manual
irrigation only. These programs do not have day
schedules or start times. They may be changed to Auto
mode at any time, if automatic operation is desired.
• Stack or Overlap: Stack means the program must run by
itself, Overlap means it is allowed to run at the same time
as other programs. If a program is stacked, its actual start
time may change, if other programs overlap it in time.
• Auto Start Times: Enter the time for the program to start.
The faster you rotate the dial, the faster the times will
change. Each program may have up to 10 start times.
16 hunter.direct/ACC2help
Basic Programming and Setup
INTELLIGENT CURRENT SENSING
ACC2 has no articial programming limits preventing
overlapping programs and stations. The controller senses
how much electrical current is being drawn, and will suspend
stations automatically if the combined current threatens the
transformer.
It is also possible to set Controller and Station Limits (Stations,
Station Limits) to control how many outputs may operate at
once.
An ACC2 Decoder controller may run as many as 20 Hunter
solenoids per module (including any P/MV outputs)
simultaneously, and up to 30 per controller (when multiple
output modules are installed) before suspending additional
stations. Environmental factors or higher-draw solenoids may
cause the overcurrent protection to activate at lower station
counts.
It is possible to view the current draw of each decoder output
module in the Decoder Diagnostics screen.
RUN TIMES
You can access Run Times from the programming menu, or
from the so key shortcuts from the Start Times screen. This
allows you to set up an entire program (start times, run times,
and water days) from the same menu.
You may continue to enter any station numbers, in any order,
in the same way.
Show Edit Tools (Shortcuts): Press the so key for Show Edit
Tools. If you are running stations in numerical order, you can
use the so key for Fill Down. This will automatically add 1 to
the previous station number, and copy the run time on the
next line. For example, if you entered Station 1, 5 minutes, and
then pressed Fill Down, it would add Station 2 for 5 minutes
on the next line. This is a shortcut for copying sequential run
times very quickly.
You can also Delete any item from the list. Scroll to the item,
and press Delete.
Verify that you are in the correct program, by number or
name.
Select the Run Type eld, and select Station or Block (“Blocks”
are described in detail in the Stations Menu section. Blocks
replace “SSGs” in the original ACC). Press the dial to select
the type.
Dial to the Number eld. Press and dial to select station or
block number. Press to enter.
Dial to the Run Time eld, press to select, and dial to enter the
run time (from 1 minute to 12 hours). You can also enter run
times in seconds, by dialing to the: SS eld (seconds), which is
adjusted separately.
You can also Insert an item above any selected line in the list.
Scroll to an item, and press Insert Line, and a blank line will
appear above it.
ACC2 can run any station or block in any order. Example: You
could insert station 3 between stations 1 and 2. The program
would run 1, 3, 2 (in that order).
Adjusted Run Times: The Adjusted Run Times show the
eects of the current Seasonal Adjust settings on the base
run time. If a run time is set to 10 minutes, but Seasonal
Adjust is at 50%, the Adjusted Run Time will show 5 minutes.
The Seasonal Adjust amount is not changed in this screen,
but can be set from the Programs menu, or automatically by a
Solar Sync sensor.
When all the Run Times for the program have been set, press
Back or Home to exit.
Built on Innovation® 17
Basic Programming and Setup
WATER DAYS
Verify you are in the correct program by number or name, and
set the days for automatic watering.
Mode selects a type of schedule.
• Day of Week: Check the boxes for the days the program
should water.
• Odd/Even: Water only on odd or even calendar dates,
to comply with water restrictions. An optional check box
allows skipping the 31st day of the month.
• Interval: Water every “x” number of days, regardless of the
day of week. Enter the desired interval days.
SEASONAL ADJUST
Programs menu, Seasonal Adjust.
When using Solar Sync, set up at Devices page rst, then go to
Seasonal Adjust.
• Seasonal Adjust Mode: Set a percentage adjustment to
all run times by Controller or Program, or set a Monthly
schedule for the controller to follow automatically, or
assign the program to Solar Sync automatic adjustment.
• Controller: The Seasonal Adjust value will follow whatever
has been set for the controller level. All programs set to
Controller will receive the same manual adjustment.
• Program: The Season Adjust factor entered here will only
apply to the selected program, and is not aected by other
adjustments.
• Monthly: Enter in advance the adjustment value for each
month of the year (usually based on historical weather
averages). These adjustments take eect automatically
on the 1st of each month, and do not change during the
month.
• Solar Sync: Adjustments are made to the selected program
automatically by a Solar Sync sensor attached to the
controller. This requires a sensor, and setup at the Devices
menu, Setup Solar Sync.
Both Odd/Even and Interval also have Non-Water Days, which
can set a day (for example, a mowing day) on which watering
will never occur, regardless of the schedule.
18 hunter.direct/ACC2help
Each Program must have a Seasonal Adjustment set. Copy
and Paste shortcuts permit copying the initial setup, and then
pasting it to all similar programs.
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