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ESP LX Series


  • ESP: Extra-Simple Programming with self-prompting large alphanumeric LCD display makes this controller easy to program, read and understand.
  • Four independent programs (A-, B-, C-, and D-drip), with six start times each, allow mixed irrigation applications in a single controller.
  • 365-day calendar with leap year intelligence for one-time date and time setting.
  • Non-volatile program memory maintains user’s program during a power outage independent of the battery backup.
  • Removable, battery-programmable panel for the convenience of both programming instruction and programming prior to installation.
  • Four cycle modes (CUSTOM, CYCLICAL, ODD, or EVEN) selectable for each program for maximum flexibility.
  • Event-Day-Off option to set any day of the month as a non-watering day for all programs accommodates special occasions and special watering ordinances.
  • Programmable Delay-Between-Stations provides time for water well recovery or time for slow-closing valves to turn off completely.
  • Start time stacking prevents hydraulic overload.
  • Variable test program for system operational testing.
  • Water budgeting by program from 0 to 300% in 1% increments makes seasonal adjustments quick and easy.
  • Programmable rain delay enables system to stay off for specified period with an auto-restart.
  • Sensor inputs and override switch with LED indicate when irrigation is suspended
  • Master valve/pump start circuit, programmable by station, for optimal irrigation control.
  • D-drip program can run simultaneously with program A, B or C to maximize hydraulic capacity and minimize watering time.
  • Diagnostic circuit breaker and LED fault indicator identify electrical shorts, skip shorted stations, and continue irrigation cycle
  • Battery recharging circuit maintains fully charged Ni-MH backup battery (included) to keep current time and date during a power outage.
  • Surge protection, backed by a 3-year lightning warranty, makes the controller reliable and robust under extreme field conditions.
  • Heavy-duty 1.25A external, plug-in style transformer on the ESP-LXi+ indoor version provides convenient installation.
  • Includes easy-to-mount, heavy-duty plastic cabinet with key-lockable door and swing-out, quick release face panel, as well as all internal wiring (no junction box needed), for clean-looking, professional installation.
  • Remote Ready connector compatible with Rain Bird's multi-function (RMX-1 system)
  • Rapid Station Test Routine (RASTER) enables the controller to diagnose and troubleshoot field wiring, solenoid, and controller problems quickly and easily.
  • Special Fuse Circuitry detects and displays when a fuse has blown.
  • UL and CUL Listed; FCC, CE and C-Tick approved.
Operating Specifications
  • Station timing: 0 to 12 hours for all stations (0 to 16 hours with water budgeting); 0 to 120 minutes selectable in 1-minute increments; above 120 minutes selectable in 10-minute increments
  • Automatic starts: 6 starts per day for each program, available on the quarter hour (total of 24 start times)
  • Independent programming schedule options:

    1. ODD day watering (per program)

    2. EVEN day watering (per program)

    3. CYCLICAL (1 to 31 days, variable per program)

    4. CUSTOM (weekly schedule variable per program)

Electrical Specifications

  • Input required: 117 VAC ▒ 10%, 60 Hz
  • Output: 26.5 VAC, 1.5A (1.25A on ESP-LXi+)
  • Diagnostic circuit breaker skips and indicates stations with overloaded circuits and continues to run operable stations
  • Overload, backup fuse: 1.5A SLO-BLO (1.25A SLO-BLO on ESP-LXi+)
  • Battery backup: 9V Ni-MH rechargeable battery (included) for programming under battery power and maintaining program current time and date during power outages
  • Station Capacity: Up to two 24 VAC, 7VA solenoid valves per station plus a master valve or pump start relay
  • Electrical surge protection: Primary input side has built-in MOV (metal oxide varistor) to protect micro circuitry; output side has one built-in MOV for each valve station


  • Width: 9 1/2" (24,1 cm)
  • Height: 10 1/4" (26,0 cm)
  • Depth: 4 3/8" (11,1 cm)