AUTOMATIC - SPRINKLER TIMER - Owner’s Manual PRT-4 / PRT-6

Oct 23, 2026

Uploaded by Dipper

Automatic sprinkler timer owner’s manual for OPTIMA PRT-4 and PRT-6 models, designed for standard 24 VAC automatic sprinkler valves and standard 110 VAC/60 Hz power outlets. The guide explains how the timer controls watering by dividing the yard into stations/zones, programming multiple start times per day, selecting specific days or day intervals, and setting station watering duration from 1 to 99 minutes. It also covers tools needed and step-by-step indoor installation location and safety warnings.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages11

Reading Time28 min

AccessFree to download

Stations

Start Times

Watering Duration

Tools You Need

How to Install

AUTOMATIC SPRINKLER TIMER Owner’s Manual PRT-4 / PRT-6 For use with standard 24 VAC automatic sprinkler valves. These timers are designed for use in any 110 VAC /60 Hz ±10% AC outlet (240 VAC, 50 HZ for international version) . The PRT Sprinkler Series Timers provide simple programming and flexible schedules to meet your landscape watering needs. We recommend you read this Owner's Manual completely before installing the timer to ensure proper operation and safety. Thank you for choosing the OPTIMA PRT-4 / PRT-6 Timer. Several innovative features allow you the flexibility to tailor your program to fit a variety of watering requirements; and, best of all, it is easy to program! • Simple to use dials and buttons. • Three available start times for each station to give you maximum flexibility. • Off and Winterize features allow you to keep all your program settings while turning off your system when you want! Just in case, if you have questions, please call us toll free at 1-800-742-9922. (U.S.A. , Canada & Mexico) . ABOUT YOUR LAWN Optima's PRT Series Sprinkler Timer is the central unit that controls watering times for your automatic sprinkler system. The following information provides an overview of how the timer works. Stations To meet the different watering requirements of your lawn, trees, flowers, and other landscaping, you can divide your yard into separate areas called "stations" or "zones".* Each "station" has one valve that controls multiple spray heads or sprinklers. For example, if you have 4 valves, you can divide your lawn into 4 "stations". See the figure below. (You cannot link more than one valve to one "station.") You can however, select a different length of watering time for each "station". * In the sprinkler industry, the terms "stations” and “zones” have the same meaning. | Station
3 | Station
4 | | | --- | --- | --- | | Station
1 |
House | Station
2 | Special Upgrade O er Save an extra 15% o new sprinkler timers and irrigation controllers at the Rain Bird Online Store.* Still struggling with your old sprinkler timer? Having a hard time complying with local watering restrictions? Upgrading to a new Rain Bird sprinkler timer is easier than you might think. New timers are easier to program than ever before, with powerful features to help save you time and water while keeping your yard healthy and vibrant. There are lots of models to meet your needs, including indoor and outdoor versions, exible modular timers and even smart controllers that automatically adjust themselves based on the weather. Shop Now at [store.rainbird.com](store.rainbird.com) and enjoy exclusive upgrade savings! Enter discount code: UPGRADE15 at checkout to save an extra 15% o * * Additional discount not valid on clearance items, bundles or store specials. Discount applies to controller products only. Cannot be combined with other store discount codes. Valid at the Rain Bird Online Store only. Subject to change without notice. ® Registered trademark of Rain Bird Corporation. LEGEND: Days of the Week MO WE FR ~~ ~~ ~~ ~~ TU TH SA SKIP ~~ ~~ Starts | SU MO TU WE TH FR SA | | | --- | --- | |
1 2 3 4 5 6 MANUAL DURATION | | Water Icon Stations Watering Schedule (Days) M/A Up Arrow Down Arrow Confirm Arrow Manual On/Advance Indicator Symbol Dual Program Button A/B You can choose how often to water your lawn in one of three ways: 1) by Specific Days of the Week (MO, TU, WE, etc. ), 2) by Day Intervals (Every day, Every 2 days or Every 3 days), or 3) by a choice of MO, WE and FR or TU, TH and SA. A schedule of Specific Days of the Week is especially useful if you live in an area with local water restrictions that limit you to water, for example, on Mondays and Fridays only. Start Times You can program your timer to start watering up to three times in one day. For example, you could set watering Start Times of 3 a. m.,6 a. m. , and 6 p. m. T

FAQs

What power and valve compatibility are the OPTIMA PRT-4/PRT-6 timers designed for?

They are for use with standard 24 VAC automatic sprinkler valves and operate with standard 110 VAC/60 Hz outlets (with an international version at 240 VAC/50 Hz).

How can the timer schedule watering frequency?

You can water on specific days of the week, by day intervals (every 2 or every 3 days), or using selected weekday groupings such as MO/WE/FR or TU/TH/SA.

How do station watering and start times work together?

The timer can start up to three times per day, turning on only one station at a time sequentially. Each station can be set to a different watering duration from 1 to 99 minutes.

Oct 23, 2026

Uploaded by Dipper