Product Overview
The Orbit Easy Set Logic Indoor/Outdoor Sprinkler Timer/Controller is designed for residential sprinkler systems, offering control for up to 12 zones/stations. This technologically advanced timer provides seamless installation and efficient yard irrigation. It features a locking door with two keys and a swing panel for easy wiring access.
Key Features
- Controls up to 12 zones/stations for efficient irrigation.
- Engineered for both indoor and outdoor installation with a locking cabinet and two keys.
- Effortless setup and operation with a swing panel and push wire terminals.
- Smart watering features including cycle and soak windows, runtime stacking, and rain delay.
- Compatible with 24 VAC valves from Orbit, Hydro-Rain, and other major brands.
Setup and Installation
Mounting the Timer
Select a suitable location for mounting the timer, ensuring it is protected from direct weather exposure if installed outdoors. Use appropriate screws to securely fasten the timer to the wall.

Image: The Orbit sprinkler timer securely mounted on a brick wall, ready for wiring.
Wiring the Timer
Connect the common wire to the 'C' terminal and individual zone wires to the numbered station terminals (1-4 for this 4-station model). The push wire terminals allow for tool-less insertion and removal of wires. Ensure all connections are secure.

Image: Close-up of hands connecting colored wires to the numbered terminals inside the Orbit timer, demonstrating the wiring process.
Initial Setup Overview
This video provides a quick overview of the Orbit sprinkler timer, highlighting its features and ease of setup. It demonstrates the physical components and basic functionality.
Video: A detailed look at the Orbit 57894 4-Station Outdoor Swing Panel, showcasing its internal components and design for easy access and installation.
Operating Instructions
The Easy-Set Logic timer features a large, easy-to-read display and a simple dial for programming. Follow these steps to set up your watering schedules.
Setting the Clock and Date
- Turn the dial to 'SET CLOCK'.
- Use the '+' and '-' buttons to adjust the current time.
- Turn the dial to 'SET DATE'.
- Use the '+' and '-' buttons to adjust the current year, month, and day.
Creating Watering Schedules (Programs A, B, C)
The timer allows for up to three independent programs (A, B, C) to manage different watering needs. Each program can have multiple start times.
- Press the 'PROGRAM' button to select Program A, B, or C.
- Turn the dial to 'START TIME'. Use '+' and '-' to set the desired start time for watering. Up to four start times can be set per program.
- Turn the dial to 'RUN TIME'. Select the station number using the '+' and '-' buttons, then set the desired watering duration for that station. Repeat for all active stations in the program.
- Turn the dial to 'HOW OFTEN'. Choose your watering frequency: specific days of the week, odd/even days, or interval watering.
Manual Operation
To manually run a single station, selected stations, or all stations:
- Turn the dial to 'ENTER MANUAL'.
- Use the '+' or '-' buttons to select the desired station(s) or 'ALL'.
- Press 'ENTER' to confirm and start manual watering.
Rain Delay Feature
To temporarily suspend watering due to rain or other reasons, use the Rain Delay feature. Press the 'RAIN DELAY' button to activate and select the desired delay period (24, 48, or 72 hours). Watering will resume automatically after the delay.
Maintenance
Battery Backup
The timer includes a lithium battery backup to retain programming in case of a power outage. It is recommended to replace the battery annually to ensure program retention.

Image: The internal view of the Orbit timer showing the battery compartment, emphasizing the lithium battery backup for program retention.
Weather Protection
The timer is designed for indoor/outdoor use and features a durable, weather-resistant casing. Always ensure the front door is securely closed and locked to protect internal components from weather damage.

Image: The Orbit sprinkler timer displayed with its protective cover both open and closed, illustrating its robust design for outdoor environments.
Troubleshooting
If you encounter issues with your Orbit sprinkler timer, refer to the following common problems and solutions:
- No Display/Power: Check the power connection to the timer. Ensure the outlet is functional. Verify the battery backup is correctly installed and not depleted.
- Sprinklers Not Running:
- Confirm the dial is set to 'AUTO' for automatic programs.
- Check if 'RAIN DELAY' is active.
- Inspect wiring connections to ensure they are secure.
- Verify that programs have active start times and run times set for the desired stations.
- Incorrect Watering Times/Frequency:
- Review your program settings (Start Time, Run Time, How Often) for Programs A, B, and C.
- Ensure the current time and date are correctly set on the timer.
- One Zone Not Watering: Check the wiring for that specific zone at the terminal. The solenoid for that zone might also require inspection.
Specifications
| Attribute | Value |
|---|---|
| Brand | Orbit |
| Model Number | 27894 |
| Color | Gray |
| Product Dimensions | 8.5"D x 9.5"W x 4.5"H |
| Item Weight | 3 Pounds |
| Number of Settings | 12 (zones/stations) |
| Manufacturer | Orbit |
| Country of Origin | China |
Warranty and Support
For technical assistance, warranty claims, or additional product information, please contact Orbit customer service directly. Keep your proof of purchase for warranty purposes.
- Customer Service Phone: 1-800-488-6156
- Website: www.orbitonline.com





