Custom Automatic Underground Lawn Sprinkler Systems
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    Orbit Sprinkler Controller Instructions.  Timer diagram
Model #'s 57254, 57256, 57258, 57252, 57344, 57346, 57348, & 57342


Install the Batteries
The controller requires two AA alkaline batteries to keep the program in memory in case of AC power loss. In a typical installation, fully charged batteries should provide sufficient power for approximately one year of protection. Therefore, we recommend changing the batteries annually.

  • Remove the battery cover by sliding it to the left.
  • Insert two AA alkaline batteries into the battery compartment.
  • Return the battery cover to its closed position.
Weak or missing batteries can cause the time, date, and program to be erased after a power failure. If this happens, you will need to install fully charged batteries and re program the controller.

Note: Batteries alone will not operate the valves in your sprinkling system. The 24-volt transformer must be plugged in and have power to operate your system normally.

Set the Time of Day and Date
If this is the first time the controller has been programmed, you should press the small recessed button labeled reset. Pressing reset does not affect the factory installed fail-safe program. [See Figure Below]

Timer Diagram

Do not press the reset button again unless you want to completely remove all your programming.

  • Turn the rotary dial to the set time/date position.
  • Press and hold the + button to advance the clock to the correct time of day. Use the - button to go in reverse. When the correct time of day is reached, press the enter button to lock in the time.
To increase or decrease more rapidly, hold down either the + or - buttons until the display goes into rapid advance mode.
  • A cursor will appear below the arrow for the year, month, and date when programming.
  • Use the + and - buttons to set the correct year, then press enter.
  • Use the + and - buttons to set the correct month, then press enter.
  • Use the + and - buttons to set the correct day of the week, then press enter.
The display will show the correct time and day of the week. [See Figure Below]

Timer Diagram

After the time of day, date, and year are set, this procedure does not need to be entered again for any other programming.

Caution: If a watering schedule is not entered into the controller, the factory installed fail-safe program will turn on each station every day for 10 minutes. To avoid accidental station activation, either turn the rotary switch to off or enter a watering schedule.

Programming

Start Times for Program A or B
Note: A cycle start time is the time of day that the program begins watering the first station, and all other programmed stations will then follow in sequence. There are not separate start times for each station. Cycle start times do not correspond to specific stations. If you enter more than one cycle start time, all stations programmed to operate will water again (in sequence).

The way you set the cycle start time is the same for all programs. To set the cycle start times for each program you will be using, do the following:

  • Turn the rotary selector to set the cycle start times position in the program that you want to set up. The display will show an A or B depending on which program you have selected. The display will show -- : -- and a blinking cursor will appear in start 1 location [See Figure below].
  • Set the time you want to begin watering for cycle start time 1 using the + or - buttons, then press the enter button. For additional cycle start times, simply press next to advance to the next cycle start time and repeat this procedure by using the + and - buttons to enter the time and then press enter. Generally, only one cycle start time is required for each program (A, B). [See Figure Below]

    Timer Diagram

Program A Setup
Program A is a two-week daily schedule. Watering may be scheduled for each of the 14 days. After 14 days, the A program continues to repeat itself-there is no need to re select the watering days. To set the watering days.

  • Turn the rotary selector to set watering days. The cursor (-) will blink above the current day in the first week. Any or all days in the two-week schedule can be programmed to water.
  • To program a day to water, press enter. An arrow will be displayed above programmed days and the cursor will move to the next day. To advance to a specific day, press next. To clear a day, press next until the cursor is above that day, then press clear. [See Figure Below]

    Timer Diagram

Program B Setup
Program B is used to water an interval from 1 to 28 or on odd or even days. An interval of 1 will water every day; an interval of 2 will water today and then every other day, etc. The odd or even schedule is based on the date. If the time of day and the date are set correctly, the controller will only water on even or odd days. If selected, the controller has leap-year compensation to ensure conformance to the odd or even schedule.
To set the watering interval,
  • Turn the rotary selector to set watering interval. The cursor will blink to the right of the word interval. [See Figure Below]

    Timer Diagram

  • When selecting an interval of days, press the + or - buttons to the desired interval. (Example: If you want to water once every ten days, the interval will be set for 10.) To program the interval, press enter.
  • To select either odd or even day watering, press next. This moves the cursor to the odd or even setting. Then press enter.
  • To clear a schedule, press the next button to move the cursor to the schedule and then press clear. To enter a new schedule, press the next button to move to the desired schedule and then press enter.
Note: If an interval of “3” is entered today, the controller will water for the first time today and then again every third day.

Note: The controller will NOT water on the first day the program is entered or modified if the start time(s) have already passed.


Set Watering Durations and Program Assignments
for A or B

The way you set the watering duration is the same for all programs. To set the duration for each program you will be using, do the following-

  • Select the watering duration for the stations by sliding each switch to its desired time from 2 to 120 minutes.
  • To skip a station, move the station’s slide switch to the manual off position at the bottom of the slide.
  • Set the program slide switch for each station that you want to assign to Program A or B or A and B. [See Figure Below]

    Timer Diagram

 

Ready for Automatic Operation
After programming is complete, turn the rotary selector to auto. The controller is now fully programmed and ready to use in the automatic mode. In automatic mode, each station will operate sequentially, starting with Program A. [See Figure Below]

Timer Diagram

 

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