Holman pro 1248 User manual

STATION MODELS – Available in 12, 18, 24, 36 or 48 stations.
OUTDOOR MODEL – Supplied with 240VAC x 24VAC inbuilt transformer, lead with plug.
Irrigation Controller
Instruction Manual
N10372
PRO

Introduction 1
Glossary 2
Key Features 3
Programming Instructions
Introduction 4
Set automatic program 4
Programming example 5
Spare watering planner 6
General tips for easy programming 7
Programming
Set current time & correct day 8
Set calendar 8
Set start times 9
Set watering days 10-11
Set station run times 11-12
Manual Operations
Run a single station 13
Run a system test 13-14
Run a program 14-15
Stop watering 16
Stacking start times 16
Automatic back up 16
Other Features
Rain sensor 17
Rain delay 18
STOP all watering 18
Water budgeting & seasonal
adjustment 19
Special Functions
Pump ON/OFF selection 20-22
Pressure build 22-23
Water hammer saver 23
Looping Program 24-25
Installation Instructions
Mounting the controller 26
Electrical hook-up 26
Field wiring connections 26-27
Terminal block layout 27-28
Pump Start Relay Connection 28-29
Single phase pump installation 29
Master valve installation 29
(including rain sensor )
Station (valve) installation 30
Pump protection (system test) 31
Fault Finding Guide 32-33
Electrical Characteristics 34
Electrical outputs 34
Servicing the controller 35
Spare watering planner 36-39
Guarantee
CONTENTS

1
PRO1248 is available in 12, 18, 24, 36 & 48 station configurations. Designed
to cover a wide range of applications from residential and commercial turf, to light
agriculture, and professional nursery.
This controller has a possible 8 separate programs with up to 64 starts per day.
The controller has a 7 day watering schedule with individual day selection per
program or a 365 calendar for odd/even day watering or selectable interval watering
schedules from every day to every 15th day. Individual stations can be allocated to
one or all programs and can have a run time of 1 minute to 12 hours 59 minutes or 25
hours if the water budget is set to 200%.
Holman has always been concerned with sustainable water usage. The controller
has many water saving features that can be used to maintain the highest standard
of plant quality with the least amount of water consumption. The integrated budget
facility allows global changes of run times without affecting programmed run times.
This allows for decreasing total water consumption on days of minimal evaporation.
INTRODUCTION

2
GLOSSARY
LARGE MENU BUTTONS
Easy operation with fast scroll
feature for entry and review.
INTERFACE
DECAL
LARGE HIGH CONTRAST LCD
Displays all programming
information.
FRONT MOUNTED
SENSOR SWITCH
ON/OFF switch for easy
access to override
QUICK PROGRAM
SELECTION KEY
The “P” key allows
faster
program
entry and
review.
TERMINAL COVER
Easy to remove for
easy access.
LARGE SELECTION DIAL
Navigates through all
programming information.

3
KEY FEATURES
 12, 18, 24, 36 & 48 station models.
 One configuration:
- Outdoor model with an inbuilt transformer includes lead & plug.
 8 programs, each of which has 8 start times. Maximum of 64 start times per day.
 Station run times from 1 minute to 12 hours & 59 minutes.
 Selectable watering options:
- Individual 7 day selection.
- Odd or Even day selection.
- Interval watering day selection from every day to every 15th day.
 Watering budgeting feature allows quick adjustment of the station run times by
percentage, from 10% to 200%.
 Rain sensor input will turn off all stations or selected stations during wet periods, if a
sensor is installed.
 Permanent memory feature will retain automatic programs during power failures.
 Standard 9 volt block alkaline battery can be used to program the controller
remotely and to maintain the clock.
 Manual functions:
- Run a program or group of programs once.
- Run a single station.
- Run a test cycle for all stations.
- “OFF” position, stops a watering cycle or to stop automatic programs during
winter.
 2 Pumps or master valve inputs as standard.
 Pumps or master valve inputs can be turned off by program or by individual
stations, for dual water supply situations or if stations are used to turn on garden
lights.
 The eighth program can be set as a standard program or can be used to act as a
loop program with up to 99 repeat watering cycles.
 Continuous looping can also be factory set for use with frost sensor.

4
PROGRAMMING INSTRUCTIONS
INTRODUCTION
This controller has been designed with 8 separate programs to allow different
landscape areas to have their own individual watering schedules.
A program is a method of grouping stations (valves) with similar watering
requirements to water on the same days. These stations will water in sequential order
and on the days selected.
 Group the stations (valves) which are watering similar landscape areas together.
Examples: Turf, flower beds, gardens. These different groups may require
individual watering schedules, or programs
 Plan your watering schedule completing the planner supplied at the back of this
book.
 Set the current time and correct day of the week. If odd or even day watering
is going to be used, make sure the current year, month and day of the month is
correct.
HINT: To select a different program use the button marked .
Each press will move to the next program number. This is handy for quick
reviewing of previously entered information without losing your place in the
programming cycle.
SET AUTOMATIC PROGRAM
 Set the automatic program for each group of stations (valves) by completing the
following three steps:
1. Set start times
This sets the time when the watering schedule is to commence.
Note: For each start time, all the stations (valves) selected for the program will
come on in sequential order. If two start times are set, the stations (valves) will
come on twice.
2. Set Watering Days
These are the selected days when the automatic system will be active.
3. Set Station Run Times
This sets the watering duration required for each station (valve).

5
PROGRAMMING EXAMPLE
A typical example of a 12 station system is outlined below as a guide to assist you
when planning your watering schedule. In this example only 5 of the possible 8
programs are used, the lawn areas are using gear drive sprinklers. The vegetable
garden is using drip and the flower beds are being watered with micro sprays.
PROGRAMMING INSTRUCTIONS
WATERING
DAYS
STN.NO GARDEN AREA
FRONT
LAWN
FRONT
LAWN
FRONT
LAWN
BACK
LAWN
BACK
LAWN
FLOWER
BED
FLOWER
BED
POTS IN
PERGOLA
POTS IN
GREEN HOUSE
1
1
1
1
1
2
2
3
4
20m
20m
20m
20m
20m
10m
10m
5m
5m
6.00 am
6.00 am
6.00 am
6.00 am
6.00 am
8.00 pm
8.00pm
5.00 am
10.00 pm
5.00 am
10.00 pm
MON FRI
MON FRI
MON FRI
MON FRI
MON FRI
WED SUN
WED SUN
EVERY SECOND DAY
EVERY DAY
VEGETABLES 5 45m 4.00 am TUES SAT
VEGETABLES 5 45m 4.00 am TUES SAT
VEGETABLES 5 45m 4.00 am TUES SAT
PROGRAM
NO
STATION RUN
TIME
WATERING
START TIME(S)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

6
SPARE WATERING PLANNER
WATERING
DAYS
STN.NO GARDEN AREA PROGRAM
NO
STATION RUN
TIME
WATERING
START TIME(S)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

7
PROGRAMMING
This controller has been designed for quick intuitive programming.
Remember these simple tips for hassle free programming.
1. Complete the spare watering planner at the back of this book.
2. When setting, one push of the button will increment one unit.
3. Holding one button down will fast scroll through units.
4. During the programming, only flashing units are able to be set.
5. Adjust flashing units using the or buttons.
6. Pressing will scroll forward through the settings in an orderly sequence.
7. Pressing will scroll back to previous settings and setting can be changed.
The large dial is the primary
device for selecting an operation.
Rotate the dial to the function
you wish to alter or review.
The is used to select different programs.
Each push on this button will increment one
program number.
Once you have selected the primary function
and program you wish to alter, you can then
use the or to change that function’s
value.
Only display elements that are flashing can be
altered with the keys.
Use the to scroll through other values
within the function that can be altered.
INCREASE
VALUE (+)
DECREASE
VALUE (-)
SCROLL
FORWARD
SCROLL
BACK

8
PROGRAMMING
Set current time & correct day
Turn the dial to “Set Clock/Calendar” position.
The hour will be flashing. Use the or to adjust.
NOTE: AM/PM must be set correctly.
Press button and the “minutes” will flash. Use or to adjust
the minutes.
Press and the “day of the week” will flash. Use or to set the
correct day.
Set Calendar
NOTE: The calendar only needs to be set when selecting Odd/Even day watering in
areas where water restrictions may require this feature.
Press button until the year, month and day are shown. The “year” will be flashing.
Use or to adjust if required.
Press and the “month” will flash. Use or to adjust if required.
Press and the “day” will flash. Use or to adjust if required.
HINT: To return to the clock, press and together or turn dial to another
position.
Before proceeding, ensure the spare watering planner has been completed. From
your planner, you should be aware which stations (valves) are allocated to each
program. Set one program at a time to ensure that the schedules are completed
correctly.

9
Example: SET PROGRAM 1
Step 1 – SET START TIMES
NOTE: all stations will come on in sequential order for each start time.
Turn the dial to “Set Start Times” and ensure that “Prog No 1” is showing. If not, then
use the button to select “Prog No 1”.
The “Start No” will be flashing. The display will show:
Use
or
to change the “Start No” if required, otherwise press and the
“hour” will flash. Use or to adjust if required.
NOTE: Ensure AM/PM position is correct.
Press and the “minutes” will flash. Use or to adjust if required .
Each program has up to 8 start times. Should you require a second start time,
press and ‘Start1” will flash.
Advance to “Start2” by pressing
The display will show:
Press and proceed as per setting Start 1.
HINT: To toggle a start on or off press
or
when the hour is flashing. To
change to a different program either to review or alter, press the button. Every
press will increment to the next program.
PROGRAMMING

10
PROGRAMMING
Step 2 – SET WATERING DAYS
This unit has interval watering from every day to every 15th day, individual day
selection or a 365 day calendar with odd/even day selection in areas where water
restrictions require this feature.
INDIVIDUAL DAY SELECTION
Turn the dial to “Set Watering days” and ensure that “Prog No 1” is showing. If not,
then use the button to select “Prog No 1”.
“Monday” will be flashing. The display will show:
This refers to Mon being Day1.
To turn Monday off press the button. To turn it back on press the
button.
To advance to the next day and set it use the button, the display will then flash
Tue and Day 2. Use
or to turn days ON or OFF
and advance to the next
day using . Remember to set all 7 days ON or OFF.
ODD/EVEN DAY SELECTION (Optional)
In some regions users are only allowed to water their landscapes on odd dates if
their house number is odd, or even dates when their house number is even.
This controller allows this to be done simply by setting the relevant selection of odd
or even and setting the current date into the controller. The controller will account for
leap years.
If you require the odd/even day option, simply press the button until “Odd” is
shown. Press the button and “Even” will be shown.
This feature may be required in areas where water restrictions are enforced.
NOTE: Remember to set the 365 day calendar when setting the clock, or this feature
will be out of sequence (refer page 8 “set calendar”).

11
INTERVAL DAY SELECTION
Press the button until the “interval days” is flashing.
The display will show:
“Interval 1” will be flashing. This means the controller will
water every day. The display will show how many days
are left before an active schedule.
For example, if it showed “1” then in one day’s time the controller will run this program.
To change the interval day, press the
or
button.
Select from 1 to 15 interval days.
NOTE: When changing the interval day, the next active day is always changed to 1.
This means that tomorrow is the first active day to run.
Step 3 – STATION RUN TIMES
This is the length of time that each station (valve) is scheduled to water on a
particular program. Maximum watering time is 12 hours 59 minutes for each station.
A station can be assigned to any or all of the possible 8 programs, if required.
Turn the dial to the “Set Station Run Times” position.
The display will show:
NOTE: This means that station 1 of program
1 has no run time programmed in it. The controller
has permanent memory so when the device is first used
there will be no run times set. Unlike other controllers,
when there is a power failure, even if the battery is not
installed, the programmed values will be restored to the unit.
PROGRAMMING

12
PROGRAMMING
Continue until all the stations in Program1 have been set with a run time or if a
station(s) is not required to be active in this particular program, ensure that the run
time is set to “OFF”.
NOTE: To turn a station “OFF” press the
and
at the same time when
the station number is flashing or use to set minutes to 00 when flashing.
This completes the setting up procedure for automatic program 1.
Select from up to 8 programs using the button for different watering schedules.
On every press of the button the program number will increment. Once on the
desired number, follow the three steps to set an automated program:
1. Set start Times
2. Set Watering Days
3. Set Station Run Times
TIP: Although the controller will run automatic programs with the main dial in any
position (with the exception of “OFF”), it is advisable to leave the main dial in
the “AUTO RUN” position when not programming or running manual stations or
programs.
Step 3 - Station Run Times (cont.)
Press or button to select the station (valve) number, and press the
button and the run time minutes will flash. Alter by using or .
Press the button and the run time hours will flash. Alter by using or .
Press the button and the current station will flash. Select the next station to
change by using or and proceed by pressing and alter using
or .

13
MANUAL OPERATIONS
Run a Single Station
The maximum run time for a station is 12 hours 59 minutes. To manually run a single
station once, turn the dial to the “System Test or Run
Single Station” position.
The display will show:
The default run time for a single station is 10 minutes.
Advance to the selected station by pressing as many
times as required, and adjust the run time with and .
The controller will start running the selected station and the run time will decrement in
the display.
If there is an active pump set for this station, the pump icon will flash once the
button has been pressed, indicating that the pump/master is running. As soon as the
single station run time has elapsed, the unit will revert back to automatic mode. This
means that if you forget to turn the dial back to the “Run” position, the controller will
still run its automatic starts, as scheduled. To turn the station off, change the position
of the main dial, to “OFF”.
HINT: If you wish to alter the default value from 10 mins to some other value and
set this as the new default time. Turn the dial to “Run Single Station” press the
button. Then alter the run time using the or buttons. Once the new
default time is set press the
button again, and the new default will now always
appear when you select a “manual single station”.
Run a System Test
To manually run a system test turn the dial to the “System Test or Run Single Station”
position, press and together.
The display will show:
The default run time for a single station is 2 minutes.
If you wish to alter the run time for this start only, use
the and buttons. Once the correct run time has been entered, turn the
station on and make it run by pressing the button.

14
MANUAL OPERATIONS
The controller will start running all stations with the selected run time. The time will
decrement in the display and will sequentially move through all stations, running them
for the same set period of time. This option is designed so that it is possible to test all
sprinklers and valves that make up the irrigation design.
To skip to the next station press the button. To go back a station press the
button. To stop the system test, change the position of the main dial, to “OFF”.
HINT: If you wish to alter the default value from 2 mins to some other value and
set this as the new default time, press the and together followed by
button. Then alter the run time using the or buttons. Once the new
default time is set press the button again, and the new default will now always
appear when you select a “manual system test”.
Run a Program
To manually run a complete program or to stack multiple programs to run, rotate the
dial to “Run Program”. The word “OFF” will be flashing.
The display will show:
To enable program 1 to start press the button.
The icon “OFF” will change to “ON”.
This program has now been enabled so that it can be
run. To make program 1 run, press the button.
NOTE: So long as there are run times in program 1 then program 1 will start and
water the stations associated with it.

15
There may be times when it is desirable to run more than one program manually.
The controller allows this to occur using its unique facility of enabling a program,
before running it. For example if I wished to run Program 1 and also Program 2, the
controller will manage stacking of the programs so they do not overlap.
Enable program 1 by pressing the button. To select the next program press
the button, the program number will increment to program 2.
Enable program 2 to run by pressing the button.
NOTE: to disable a program number, press the button.
Once both programs have been enabled, they can be run by pressing the button.
The controller will now run all programs that have been enabled starting with the
highest numbered program. So in this case, program 2 would run and when it has
completed its cycle, program 1 would start and run its cycle.
This method can be used to enable any, or all of the available programs on the
controller.
NOTE: When running programs in manual mode the “Budget %” will alter the
running times of each individual station.
MANUAL OPERATIONS

16
OTHER FEATURES
Stop Watering
To stop an automatic or manual watering schedule, turn the dial to the “OFF”
position.
NOTE: For automatic watering remember to turn the dial back to the “Auto Run”
position, as “OFF” will stop any future watering cycles from occurring.
Stacking Start Times
Should you accidentally set the same watering start time on more than one program,
the controller will “stack” them in sequential order. All programmed start times will be
watered from the highest number first.
Automatic Backup
This product is fitted with permanent memory. This allows the controller to hold all
stowed values even in the absence of power sources, which means that programmed
information will never be lost. Fitting the 9 volt block battery will keep the real time
clock running during power outages. However, if the battery is not fitted the real time
clock is backed up every 10 minutes to the non volatile memory. This means that
when the power returns the clock will be restored to its last known value.
It is recommended that a battery is fitted and it is changed every 12 months.
A low battery icon will light when the battery has a week left to run. When this occurs,
replace the battery as soon as possible so that the clock is maintained correctly
during power failures.

17
OTHER FEATURES
Rain Sensor
When installing a rain sensor, first remove the the factory
fitted link between the “C” and “S” terminals shown here
by the wire.
Replace with the two wires from the rain sensor into these
terminals, polarity NOT required. Move the rain sensor
switch on the fascia to “ON”.
Turn the dial to “Set Auxiliaries” to enable individual
stations to be set rain sensor “ON” or “OFF”.
The display will show:
If the station is turned “ON” this means that the sensor
will control it, should it rain. The default mode is for all stations to be rain sensor “ON”.
Should you have a station (valve) that always needs to be watered, e.g. an enclosed
green house or plants that are under cover, then the rain sensor can be turned “OFF”
for these particular stations. This way when the sensor is wet they will still water.
To select a station to turn “OFF”. Press the button, the word “ON” will now be
flashing, use the button to change to “OFF”.
TIP: To turn the station back “ON” press the button. To advance to the next
station use the button and the station number will increment. Do this operation
for all stations (valves) on the controller that need to be altered.
HINT: To disable the rain sensor and allow all stations to water regardless of the
setting, move the slide switch marked Rain/Sensor to the “OFF” position.
The reactivate it slide the switch to the “ON” position.

18
OTHER FEATURES
Rain Delay (Rain sensor cont...)
Different rain sensors react in different ways. The most common complaint about rain
sensors, is that they dry out too quickly, and allow the system to come on within hours
of a rain storm. To counter this problem the controller has a “Rain Delay” setting that
allows a specific delay time to elapse after the rain switch has dried out before the
controller will water again. Turn the dial to the “Set Auxiliaries” position. Then press
the button. The rain delay value will now be flashing.
The display will show:
Press the button to alter the rain delay time in
increments of 12 hours at a time.
A maximum delay of 240 hours or 10 days can be set.
Stop All Watering
To stop all watering cycles during winter, turn the dial to the “OFF” position.
The display will show “ALL OFF”:
This means that all automatic schedules will not come on,
but the programmed information is still retained in the
memory and the clock still keeps track of time even
though it is no longer being displayed.
To reactivate watering, turn the dial to the “Auto Run” position.