K-Rain RPS 46 User manual

INSTRUCTION MANUAL
www.krain.com
STATION MODELS - Available in 4 OR 6 stations.
OUTDOOR MODEL - Supplied with 120VAC x 24VAC inbuilt transformer.
OPTIONAL LEAD WITH PLUG.
MINI IRRIGATION CONTROLLER

FEATURES
GLOSSARY
PROGRAMMING INSTRUCTIONS
Introduction
Other Functions
General tips for programming
PROGRAMMING
Set Current Time & Correct Day
Set Calendar (Optional)
STEP 1. Set Start Times
STEP 2. Set Watering Days
Interval Day Selection
Individual Day Selection
Odd / Even Day Selection
STEP 3. Set Station Run Times
MANUAL OPERATIONS
System test facility
Run A Single Station
Run A Program
OTHER FEATURES
Stop
Stacking Start Times
Automatic BackUp Program
Fitting a Rain Sensor (Optional)
Rain Off Mode
Water Budgeting
INSTALLATION INSTRUCTIONS
Mounting The Controller
Electrical Hook-Up
Field Wiring Connections
Terminal Block Layout
Power Supply Connections
Connection Of Valves
Pump Hook-Up Connections
ELECTRICAL CHARACTERISTICS
SERVICING THE CONTROLLER
TROUBLESHOOTING
SPARE WATERING PLANNERS
TABLE OF CONTENTS
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1
FEATURES
This unit is available in 4 & 6 station configurations Designed for
residential applications, this controller has four separate programs
with a maximum of sixteen start times a day. This ensures efficient
watering of different garden or turf areas.
These different areas may require individual watering programs and
often use different types of sprinklers.
Examples: Turf areas generally use pop-up sprinklers and require less
frequent but heavier watering. However, flower beds use sprays and
require more frequent watering. The valves (stations) which water
similar garden areas are often grouped together and put into the same
program as they need to be watered on the same days.
These stations (valves) will water in sequential order from the lowest
number at the start time (or times) nominated and on the days
selected. Maximum watering duration for a station (valve) is 12 hours
and 59 minutes.
This controller has three types of watering day options. Either, interval
watering from everyday to every 15th day, individual day selection per
program, or a 365 day calendar for ODD/EVEN day watering.
An innovative feature of this controller is the water saver feature which
allows quick adjustment of the station watering times by percentage
as the seasons change Another water saving feature is the installation
of a rain sensor. This controller has a rain sensor switch in the fascia
so your can enable or disable the rain sensor control function.

2
GLOSSARY
LCD DISPLAY
Easy to read display
SELECTION DIAL
Used for operations &
programming
RAIN
SENSOR
SWITCH
Manually
activate rain
sensor by
switching
to ON/OFF
position
PROGRAMMING BUTTONS
Used for adjusting the
programmed information
INDOOR CONTROLLER MODEL
TERMINAL COVER
Remove to access terminals
for solenoid (valve) wires and
to annually replace 9 volt
block battery
FUSE LOCATION
Remove cover to
access fuse

3
INTRODUCTION
This controller has been designed with four separate program starts,
to allow different garden areas to have their own individual watering
requirements.
A start is basically a method of grouping stations (valves) with similar
watering requirements to water on the same days. These stations will
water in sequential order from the lowest number at the start time (or
times) nominated and on the days selected.
THE KEY ELEMENTS WHEN PROGRAMMING YOUR
CONTROLLER ARE:
1. Grouping the stations (valves)
Group together garden areas which have similiar watering
requirements. Examples are: Turf Areas, Flower Beds, Pergola/
Undercover Areas, or Vegetables. These different groups require
individual settings.
2. Planning out your watering program.
Complete your individual watering planner, supplied at the back of
this book.
3. Setting the current time and correct day of the week.
4. Setting an automatic program start.
Use the following 3 steps to program each group.
4.1 Set Start(s).
This sets the time of the day when the watering program will
commence.
4.2 Set Watering Days.
These are the nominated days when the automatic system will be
active.
4.3 Set Station Run Times.
This sets the watering duration required for each station (valve).
PROGRAMMING INSTRUCTIONS

4
PROGRAMMING INSTRUCTIONS
OTHER FUNCTIONS
This controller can also manually run a selected program once, or an
individual station can be set to run once from 1 minute up to 12 hours
and 59 minutes. A test facility for checking the valves and sprinklers
is also provided.
GENERAL TIPS FOR EASY PROGRAMMING
Tips to help eliminate programming confusion.
Complete the spare watering planner.
When setting, one push of the button will increment one unit.
Holding one button down will fast scroll through units.
During programming, only the flashing values are able to be set,
use the or buttons.
Pressing will scroll forward through the settings in an
orderly sequence.
Pressing will scroll back to previous settings and settings
can be changed.
Scroll Forward
Increase Value
Decrease Value
Scroll Backwards

5
PROGRAMMING
SET CURRENT TIME & CORRECT DAY
Turn the dial to Set Clock/Calendar position.
The hour will be flashing. Use or to adjust.
NOTE: AM / PM must be set correctly.
Press the button and the “minutes” will flash.
Use or to adjust.
Press and the “day of the week” will flash.
Use or to set correct day.
SET CALENDAR (OPTIONAL)
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 & day are shown. The “year”
will be flashing. Use or to adjust.
Press button and the “month” will flash.
Use or to adjust.
Press and the “day” will flash. Use or to adjust.
TIP: To return to the clock, Press , or turn dial to another position.
Before proceeding, ensure your watering planner has been completed.
From this, you should be aware of which stations are allocated to
each program.
NOTE: Set one program at a time – this will ensure that all the values are
entered correctly.

6
PROGRAMMING
SETTING PROGRAM 1
The program number can only be set/changed in the
Set Start Times position.
STEP 1. Set Start Times
All valves will activate in sequential order for each start time. Turn the
dial to Set Start Times and ensure that “Prog 1” is flashing.
THE DISPLAY WILL SHOW:
Press & “Start 1” willl flash.
Press & the “hour” will flash.
Use or to adjust.
NOTE: AM / PM is set correctly.
Press & the “minutes” will flash. Use or to adjust, if
required. Each program has up to four start times and should you
require a second start time,
Press twice & “Start 1” will flash.
Advance to start 2 by pressing .
THE DISPLAY WILL SHOW:
Press and proceed as per setting Start 1.
TIP: To turn an active start time off, turn the dial to the Set Start times
position, select the start number required using the button and then
press until the “hour” is flashing. Use or until “OFF” is shown.
TIP: “OFF” position is between 12 and 1pm.

7
PROGRAMMING
STEP 2. Set Watering Days
This unit has interval watering or individual day selection from every
day to every 15th day or a 365 day calendar with odd/even day
selection in areas where water restrictions require this feature.
Turn the dial to Set Watering Days.
INTERVAL DAY SELECTION
THE DISPLAY WILL SHOW:
“Interval 1” will be flashing.
This means that watering will occur every day.
To change the interval day, press the button.
Examples: Interval 2 means watering will take place every second
day, 3 means watering will be every third day etc.
Interval watering can be set from everyday to every 15th day.
The Run Day refers to the number of days press the next watering
program will occur.
INDIVIDUAL DAY SELECTION
Press the button. This is the selectable day option.
THE DISPLAY WILL SHOW:
This refers to Mon being Day 1.
To turn Monday off, press button . To leave Monday active, leave
as is & advance to Tuesday (day 2) by pressing the button.
Again press the button to set the day off if required followed
by to advance. Continue until all seven days have been set
“on” or “off” .

8
PROGRAMMING
ODD / EVEN DAY SELECTION (OPTIONAL)
In some regions, users are only allowed to water on ODD dates if their
house number is ODD, or on EVEN dates when their 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.
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.
STEP 3. Set Station Run Times
This is the length of time that each station (valve) is set to water on a
particular program. Maximum watering time is 12 hours 59 minutes
for each station. A station can be assigned from 1 to 4 starts if
required, with different run times.
Turn the dial to the Set Station Run Times position.
THE DISPLAY WILL SHOW:
This means station 1 has a default run time of 10 minutes in program
1. “Station 1” will be flashing.

9
PROGRAMMING
STEP 3. Set Station Run Times. (Continued)
To adjust the Run time in minutes press , and use or . To
set the run time in hours,
press and “0” will appear and flash.
To adjust use or . If not required,
press and advance to
station 2 by pressing the button.
Continue until all the stations in Program 1 have been set with a
run time, or if a station (or stations) are not required to be active in
this particular program, ensure that the run time is set to “OFF”.
Remember all stations are set at a default run time of 10 minutes
in Program 1.
NOTE: To set a station to “OFF”.
Use when the “RUN TIME” is flashing. This completes the setting
up procedure for automatic watering of Program 1.
Should you need a second program.
Turn the dial to “Set Start Times” and “Prog 1” will flash.
press
and change to program 2 position and follow the same 3 steps to set
an automatic watering program.
1. Set Starts
2. Set Watering Days
3. Set Station Run Times
TIP: Remember to return the dial to the “Auto Run” position after
completing the set up of an automatic program.
This will ensure that the automatic cycles will take place.

10
MANUAL OPERATIONS
SYSTEM TEST FACILITY
Turn the dial to Run Test Cycle.
There will be a two second pause.
THE DISPLAY WILL SHOW:
Use this feature to check that your
valves & sprinklers are working correctly. The unit will run all stations
in sequential order. The factory preset time of 2 minutes per station
can be adjusted. The new adjusted run time will become the new
default time.
TIP: If the water supply is from a pump system, it is critical to ensure all
outputs are connected to a valve. Any output NOT connected to a valve,
should be linked back with a wire to the nearest output with a valve.
This prevents the pump running against a closed head.
RUN A SINGLE STATION
Turn the dial to Run Single Station. There will be a two second pause.
To adjust the run time, use or . To advance to the next station
press the button. Maximum run
time is 12 hours 59 minutes.
THE DISPLAY WILL SHOW:
Unused
stations
linked
back to
last used
station

11
MANUAL OPERATIONS (CONT.)
OTHER FEATURES
RUN A PROGRAM
To manually run a complete program once for the run times as set in the
automatic schedule turn the dial to the Run a Start position. “Prog 1”
will be shown in the display. To run program 1, leave or advance to
start 2
by pressing .
OTHER FEATURES
STOP
To stop an automatic or manual watering schedule, turn the dial to
the Off position.
TIP: For automatic watering, remember to turn the dial back to the
Auto Run position. The Off position will stop any watering from occuring.
STACKING START TIMES
Should you accidently set the same watering start time on more than one
program, the controller will stack them in sequential order from the lowest
number. All programmed start times will be watered, but the start times will
be shunted along.
AUTOMATIC BACK UP PROGRAM
When the battery is not fitted or is low, there is a backup default program
in program 1 watering every day at 12:00 a.m. for 10 minutes per station.
A standard 9 volt battery should be fitted to the battery snap supplied
to maintain the clock accuracy and hold the automatic programs
during power outs.
TIP: The display has a warning indicator to let you know when the battery
is low or not fitted. The word BAT is displayed under the AM / PM indicator
in the clock mode.

12
OTHER FEATURES
FITTING A RAIN SENSOR (OPTIONAL)
A rain sensor can be wired directly into the terminal block. When the
sensor is wet, all automatic and manual watering will not operate.
To fit a rain sensor follow this procedure:
1. The sensor switch, accessed on the
fascia, must be up in the “ON” position. To
over-ride the sensor when it is wet, simply
move the sensor switch down to the “OFF”
position. This will allow automatic and
manual watering cycles to operate.
2. Connecting the rain sensor wires:
A. Remove the link connector by loosening both screws
and slide out. (Link located under the terminal cover.)
B. Run the new sensor
wires into the terminal
block and replace where
the link was. Fasten one
wire under the common
(C), the other into the
24VAC. Polarity not
applicable.
New Sensor wires
NOTE: Far left 24VAC Terminal is active.
TIP: It is important to move the sensor switch back to the “ON” position
after completing your watering cycle.
Remove link connector

13
OTHER FEATURES
RAIN OFF MODE
To stop the automatic watering cycles during winter, turn the dial
to the Off position. The word “Off” will appear in the display. This
means the automatic programs will not come on, but the programmed
information is still retained in the memory. To reactivate the automatic
schedule, turn the dial back to the Auto Run position.
WATER BUDGETING
The automatic station run times can be adjusted by percentage as
the seasons change. This will save time and money as the run times
can be adjusted quickly in spring, winter and autumn to reduce the
amount of water used.
Ensure that the dial is in the Auto Run position and then
press the button.
THE DISPLAY WILL SHOW:
Displayed is the word “Budget” and “100%”.
This represents the current automatic watering run times as being
100%. The percentage budget can be set in 25% increments from
25% up to 150%.
Example: 50% reduces watering by half.
To adjust in 25% increments, use or buttons.
To return to the clock press the button. The display will show the
word Budget to indicate that the water budgeting feature is in use.

14
INSTALLATION INSTRUCTIONS
MOUNTING THE CONTROLLER
This controller unit is an INDOOR MODEL and MUST not be exposed to
rain or water ingress, or direct sunlight.
Install the controller near a 120VAC outlet, preferably located in a
house, garage or other covered area. For ease of operation, eye level
placement is recommended.
Drive one #8 screw into the wall, leaving about 4mm (1
/8inch ) of the
screw exposed. If necessary, use a toggle bolt or masonary shield.
Hang the controller from the key slot located in the back of the case.
Make sure the head is properly seated inside the controller case.
Additional screws may be inserted through the holes in the lower
corners of the controller case.
ELECTRICAL HOOK-UP
WARNING
1All electrical work must be carried out in accordance with these
instructions following all applicable Local, State and Federal codes,
or warranty will be void.
2Disconnect power supply before maintenance work to
controller or valves and when connecting and disconnecting field
wiring and pump or master valve hook-ups.

15
FIELD WIRING CONNECTIONS
PREPARATION
1Prepare wires for hook-up by cutting the wires to the correct length
and stripping approximately 6mm (¼ inch) of insulation from the end
to be connected to the controller.
2Ensure terminal block screws are loosened sufficiently to permit
easy access for wire ends. Insert stripped wire ends into the clamp
aperture and tighten screws. Do not over tighten as this may
damage the terminal block.
3A maximum of 0.5 Amps may be supplied by any output. Check the
inrush current of your solenoid coils before connecting more than
two valves to any one station.
TERMINAL BLOCK LAYOUT
THE TERMINAL BLOCK IS LAID OUT AS FOLLOWS:
INSTALLATION INSTRUCTIONS
GLOSSARY
24VAC 24VAC Power Supply
CCommon valve wire input
PMaster valve or pump start active wire
1 to 6 Station (Valve) active wire connection

16
INSTALLATION INSTRUCTIONS
POWER SUPPLY CONNECTIONS
The controller itself can run off a 120VAC to 24V AC external
transformer.
It is recommended that the transformer is not connected to
a 120VAC supply which is also servicing or supplying
motors
(i.e. Air conditioners, pool pumps, refrigerators, etc.)
Lighting circuits
are suitable as a power source.
CONNECTIONS TO THE UNIT ARE AS FOLLOWS:
CONNECTION OF VALVES
Up to two 24VAC Solenoid Valves can be connected to each station
output and wired back to the common (C) thus:
Valve wires enter the controller through the rear

17
INSTALLATION INSTRUCTIONS
PUMP HOOK-UP CONNECTIONS
Do not attempt to drive a pump starter directly from the controller.
Pump start is provided by connecting one side of the coil of a suitable
relay to the Master Valve/Pump Start output of the controller and the
other side to the controller common.
For systems supplied with water from a pump, unused stations must
be connected back to the last used station to eliminate the possibilty
of the pump running against a closed head. Failure to do so could lead
to pump damage.
The diagram shows an 6 station controller with 4 active stations
(valves):
Unused stations must
be linked back to the
last used station.
Use insulated cable.

18
ELECTRICAL CHARACTERISTICS
POWER SUPPLY
This unit can run off a 60Hz external transformer, (plug pack), with
an output of 24VAC 60Hz @ 0.85 Amp.
PLUG PACK MODEL
The correct wiring installation for the 24VAC plug pack
is shown on page 16. The plug pack model is only suitable
for indoor installation.
ELECTRICAL OUTPUTS
ELECTRICAL POWER SUPPLY
Input: 24Volts AC 60Hz.
Electrical Outputs: Maximum of 0.85 AMPS
To Solenoid Valves: 24 VAC 50/60 Hz 0.5 AMPs max.
To the Master Valve/Pump Start: 24VAC 0.25 AMPs maximum.
NOTE: Transformer and fuse capacity must be compatible
with output requirements.
Overload protection: Standard 20mm 1 Amp fuse.
Power failure: 9 Volt battery maintains clock
and programs for up to 2 weeks.
The output circuits should be installed and protected
in accordance with wiring rules.