Thank you for selecting an Orbit® sprinkler Timer. Orbit® designers have
combined the simplicity of mechanical switches with the accuracy of digital
electronics to give you a Timer that is both easy to program and extremely
versatile. The Orbit
®
Timer provides convenience and flexibility, letting you
run a fully automatic, semi-automatic, or a manual watering program for all
your watering needs.
Please read this manual completely before you begin to program and use the
controller. A few of the most notable design features include:
At-a-Glance Simplicity
By turning the rotary dial to one of nine settings you can review program-
ming or easily make changes.
Arm Chair Programmable
By inserting two AA alkaline batteries you can program the Timer prior to
installing it in its permanent location.
Fuse
Red flashing LED indicates blown fuse. The 0.75 amp slow-blow fuse pro-
vides circuit protection. For replacement, use WaterMaster 0.75 amp fuse or
equivalent.
Lexan Language Covers
Available in English, French, Spanish, Italian, German.
FIGURE 1: Location of Controls on the Timer
1. Digital Display
A large LCD (Liquid Crystal Display) shows the time of day and indicates
many of the programming settings. The display is completely interactive with
all other controls.
2. Programming Keys
The Timer has seven push button keys for setup and program entry.
Working in conjunction with the rotary selector, the keys are used to set the
time of day, watering time, watering days, start times, and other functions.
3. Selector Dial
This large dial makes it easy to see which function is currently selected
and/or in which mode the Timer is set to operate.
4. Reset Button
The reset button clears the time, date and user-defined programming but does
not remove the factory installed fail-safe program. To prevent an accidental reset,
the button is recessed into the panel and must be pressed with a small pointed
object such as a pen or pencil tip.
Notable Programming Features
Two Watering Programs—Summary
The Timer gives you the option of using one or both of the independent pro-
grams. Note that each station can independently be set to either A or B or
both A and B programs.
Program–A
This program lets you schedule selected stations to water on specific days of
the week or to water every 2nd day. Program A repeats itself continuously in
successive weeks.
Program–B
Provides two options: One for odd or even day watering or for intervals rang-
ing from everyday to every 28th day. This feature is designed to meet the
growing needs and restrictions imposed by local governments and to con-
serve water. The Timer automatically calculates odd and even days (by date)
for each month and makes adjustments for leap years to provide true odd
and even watering through the year 2095.
Start-Time Stacking
The Timer has the intelligence to “stack” start times that overlap.
If you enter two or more start times that overlap (in the same or in different
programs), the Timer will not activate two stations at the same time. Instead,
the Timer activates the first station and then activates the next station(s) in
sequence after the first station finishes its preset watering duration.
The Timer will NOT stack to the next calendar day. This prevents the Timer
from violating an odd or even day watering schedule.
Manual and Semi-Automatic Modes
The Timer gives you a number of manual and semi-automatic modes for flexibility in
watering. You can override the Timer’s automatic programming in a variety of ways.
A
B
1
4
ZONE
DURATION
CYCLE
START
TIMES
DAY OF
WEEK
CYCLE
START
TIMES
ZONE
DURATION
WATERING
INTERVAL
INTERVAL
ODD
EVEN
M T W T F S S
2nd
1
2
3
4
TIME/DATE
AUTO
1 2 3 4 5 6 7 8 9 10 11 12
OFF
ZONE
PROGRAM
CYCLE
START TIMES
DA
Y
MONTH
YEAR
NEXT
CLEAR
MANUAL
RAIN DELAY
ENTER
RESET
3
2
ENGLISH
1
1
s e c t i o n
Introduction
WTM220330 57962-24 rG.qx 12/14/01 1:16 PM Page 1
