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Rain Bird^® ESP Modular Irrigation Controllers
Maximize Your Productivity

The ESP Modular Irrigation Controller is designed to maximize your productivity by saving you time and money. Easily expand from a 4 station base model to 13 stations with 3 station hot-swappable modules, which can be added without powering down the controller.

Another example of Rain Bird's legendary reliability, the ESP Modular offers industry-leading surge protection, temperature tolerance and rugged construction. It improves upon Rain Bird's already easy-to-use ESP style of programming with a large, easy to read display and intuitive programming sequence, making this the most user-friendly irrigation controller in its class. The spacious cabinet and terminal locations make installation and wire-up a snap. And features like the Contractor Default™ program make service calls more efficient and earn you more money by taking less time! The Rain Bird ESP Modular: Maximizing your Productivity.

More Reliable:

• NEW! 5-year lithium battery (Rain Bird Exclusive) and non-volatile memory, keeps time, date and program schedule in case of power outage.
• Superior surge protection — withstands nearly 3 times higher electrical surges than competitive controllers.
• Rain Bird quality construction and components.
• Fuseless, diagnostic circuit breaker identifies a station with valve or wiring problems and continues to water operable stations.

More Flexible:

• Easily expandable from a four station base model to 13 stations with the additon of 3-station modules at installation or in the future. Modules can also be installed in any available slot.
• NEW! Longer station run times add more flexibility for special applications such as drip.
• NEW! Programmable master valve allows pump to operate only as needed, resulting in greater flexibility in controlling the water source.
• NEW! Programmable Delay Between Stations allows additional time between zones for water well recovery or slow closing valves.
• Auxiliary Station™ can be set to bypass an active sensor to allow watering even if the other stations are disabled or can be set as a normal station.
• 365-day calendar with leap year intelligence means that you can set an “Odd” or “Even” day watering schedule and not worry about changing the date on leap years.
• Four irrigation cycle modes for maximum flexibility and compliance to all major watering restrictions (Custom 7-day calendar, cyclic 1-31 day interval, and odd/even day calendar).

Easier for You:

• Contractor Default Program (Rain Bird Exclusive!) allows retrieval of a default program you save in to memory. Easily replace a schedule that has been altered by the homeowner in seconds.
• Hot swappable modules allow adding more stations without powering down the controller.
• NEW! Improved Ribbon Cable provides better visibility and ease of connection.
• Larger cabinet space provides more room for wiring installation.
• “Valve Test Terminal” allows the installer to test the valve wires during installation to determine the valve that each wire is connected to.
• Spacious heavy-duty cabinet with internal junction box provides lots of room for wiring and eliminates the need to purchase an external j-box for a clean and professional looking installation. Outdoor model comes with key-locking cabinet.

Easier for Your Customers:

• Easy programming: Rain Bird's easy to use Extra Simple Programming style with larger LCD dispaly.
• Time, date and program schedule are stored in case of a power outage.
• Enhanced Diagnostic Feedback™ alerts the user to conditions when watering is suspended due to an activated sensor, shorted stations or programming errors with a warning light and text message on the LCD.
• Permanent Day off allows the user to set any day of the week as a non-watering day in any program or schedule, making it easy to comply with watering restrictions or other requirements such as weekly lawn care or maintenance.
• Global Season Adjust (0-200%) allows the user to alter the run time of all the valves in every program with the push of a button.
• Dedicated sensor terminals allow the user to easily connect a sensor to the controller for maximum water efficiency.
• Sensor bypass switch allows the user to override an active sensor.

Operating Specs

• Number of programs: 3 independent
• Automatic Starts: 4 per program, 12 total
• Station timing: 0 to 6 hours for all stations
• Independent programming schedules:
  - Custom (user selects the day of the week to water)
  - Odd (watering occurs on only odd days of the month except the 31st and February 29th on a leap year)
  - Even (watering occurs on only even days of the month)
  - Cyclical (watering occurs between from once a day to once every 31 days)

Electrical Specifications

• Input required: 120 VAC ± 20%, 60Hz
• Output: 25.5 VAC 1A
• Surge Protection: Primary input side has built in MOV (metal oxide varistor) to protect microcircuitry. Output side has 1 built in MOV for each valve station
• Power back-up: Lithium coin-cell battery maintains time and date while non-volatile memory maintains the schedule
• Multi-valve station capacity: Up to two 24 VAC, 7VA solenoid valves per station plus a master valve

Dimensions

• Width: 10.7 in. (27,2 cm)
• Height: 7.7 in. (19,5 cm)
• Depth: 4.4 in. (11,2 cm)

Models

• ESP-4Mi: 4 station indoor model*
• ESP-4M: 4 station outdoor model*
• ESP-SM3: 3-station module