Orbit Model 57900 Irrigation Controller Instruction Manual

Manual Orbit Model 57900 Irrigation Controller Instruction Manual

Orbit Model 57900 Irrigation Controller Instruction Manual

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Orbit Model 57900 Irrigation Controller

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Orbit Model 57900 Irrigation Controller

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Orbit Model 57900 Instructions

Here we offer the Orbit Model 57900 Irrigation Controller manual completely free and in English. We have cataloged this manual in the Irrigation Controllers section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Orbit Model 57900 Irrigation Controller, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Orbit Model 57900 Irrigation Controller Specifications

Feature Specification
Model Numbers Covered by Manual 57894, 57896, 57899, 57900, 27894, 27896, 27892, 27999, 91894, 91896, 91892, 91899
Number of Programs 3 (A, B, C) independent programs
Start Times per Program Up to 4 start times
Watering Duration Range 1 to 240 minutes per station
Watering Frequency Options Days of the week (Mon-Sun), Intervals (Every 'X' days), Odd/Even days
Operating Temperature Range 32°F to 158°F (0°C to 70°C)
Power Source (Indoor) 110V AC electrical outlet (via built-in transformer)
Power Source (Outdoor) 110V AC GFI protected outlet or permanent hardwiring (refer to local codes)
Battery Type for Memory 1x CR2032 Lithium (included)
Recommended Battery Replacement Annually
Max Station/Pump Loading 250mA per station/pump
Max Timer Loading 500mA total
Recommended Sprinkler Wire Gauge (< 700 ft / 210 m) 20 AWG
Recommended Sprinkler Wire Gauge (> 700 ft / 210 m) 16 AWG
Required Electrical Feed Wire (Permanent Wiring) 14 AWG minimum, 155°F (68°C) temperature rating
Certifications UL-50, ETL® Listed (USA), CSA®, CE® Approved (International models), Canadian ICES-003 Class B compliant
Number of Stations Configurable; varies by specific model variant within the series (e.g., 4, 6, 9, 12-station models)

Orbit 57900 Irrigation Controller Details

The Orbit Model 57900 Irrigation Controller, a key product in its series, is designed for convenience and flexibility in managing watering schedules. It features Orbit's exclusive Easy-Set Logic™, simplifying programming and setup by integrating advanced timer technology with versatile functionality. Users can easily implement fully automatic, semi-automatic, or manual watering programs tailored to their specific landscape requirements. This ensures that even complex irrigation needs are met with straightforward controls and an intuitive interface, making efficient water management accessible. A durable, weather-resistant cover with a lock and latch protects internal components from the elements.

The controller boasts an intuitive interface, comprising a prominent dial for mode selection, a clear digital display, and dedicated buttons for precise adjustments (ENTER/MANUAL, CLEAR, PROGRAM, arrows, +/-). The dial guides users through settings like SET CLOCK, SET DATE, START TIME, RUN TIME, HOW OFTEN, BUDGET, and OFF. A standout capability is its support for three independent programs (A, B, C), allowing distinct watering schedules for different zones or plant types. Each program can have up to four daily start times, and start-time stacking intelligently delays subsequent programs to prevent overlap, optimizing water distribution.

To accommodate diverse watering needs, the Orbit 57900 offers flexible frequency settings: users can select specific Days of the Week, define watering Intervals (e.g., every 'X' days), or choose Odd or Even Day watering. Furthermore, it integrates smart features for environmental adaptation. The Rain Delay function pauses watering for 24, 48, or 72 hours, conserving water after rainfall, with the display showing the remaining delay. Water Budgeting allows percentage-based adjustments (10% to 200%) to overall watering durations, effortlessly matching seasonal requirements like hotter summers or cooler springs.

For immediate or specific watering tasks, the Orbit 57900 provides robust Manual Watering options. Users can initiate watering for all stations consecutively or precisely select individual programs or stations, adjusting durations from 1 to 240 minutes without altering the programmed schedule. This is invaluable for spot watering or system testing. For comprehensive irrigation system management, the timer supports the integration of a pump start relay or master valve, activating them automatically with any running station. Dedicated terminals and a bypass switch are also included for easy rain sensor connection, further enhancing water conservation.

Installing the Orbit 57900 is designed to be straightforward. Key considerations include selecting a location near a power source, ensuring operating temperatures are within 32°F-158°F (0°C-70°C), and providing 9 inches of clearance for the swing door. Wiring involves connecting individual valve wires to corresponding station terminals and a common wire to the common terminal, with recommendations for wire gauge based on distance. The timer requires one CR2032 lithium battery, which should be replaced annually to retain programming memory during power outages. A built-in fail-safe program waters each station for 10 minutes daily if memory is lost.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Orbit Model 57900 Irrigation Controller, and we answer them below.


What battery does the Orbit Model 57900 use?
It uses one CR2032 Lithium battery, included for retaining program memory during power loss. Annual replacement is recommended.

How do I activate the battery?
Remove the plastic strip from the pre-installed CR2032 battery in the battery compartment to activate it.

What if I lose power? Will my program be saved?
Yes, the CR2032 battery retains your program in memory during power loss. However, a weak or missing battery can cause the program to be erased after a power failure.

Can I manually water without changing my program?
Yes, turn the dial to AUTO, then press the MANUAL button. You can water all stations consecutively or select specific programs/stations and set desired durations (1-240 minutes) without disturbing the automatic schedule.

What is 'Rain Delay' and how do I use it?
Rain Delay pauses watering for 24, 48, or 72 hours due to rain. Turn the dial to AUTO, then press the RAIN DELAY button. Use the +/- buttons to adjust the duration. Press CLEAR to stop the delay at any time.

How does Water Budgeting work?
Water Budgeting adjusts the overall watering duration for all stations in a selected program as a percentage (10% to 200% in 10% increments). Turn the dial to BUDGETING, press PROGRAM to select the desired program, and use the +/- buttons to adjust.

How many independent programs can I set?
The timer provides the flexibility of using 3 independent programs (A, B, C), each allowing for different watering settings, start times, and durations.

What is 'Start-Time Stacking'?
If a start time is set for a program before a previous program has completed, that subsequent start time will be "stacked" or delayed, and will automatically begin upon the completion of the previous program, preventing simultaneous operation.

Can I connect a rain sensor to this controller?
Yes, connect rain sensor wires to the yellow "SENSOR" terminal ports. There is also an on/off bypass switch located on the timer. Important: If the sensor switch is in the "on" position and no sensor is connected, the timer will not operate.

My valves are not turning on, what could be the problem?
Possible causes include a faulty solenoid connection, a damaged or severed wire, a flow control stem that is screwed down (shutting off the valve), or incorrect programming. Refer to the troubleshooting section in the manual for detailed guidance.

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