Junior MAX™ Series


6 and 8 Station Residential Outdoor/Indoor

The Irritrol® Junior Max (JR Max™) controllers combine simplicity and affordability with a host of modern irrigation control features ideal for residential landscape applications. Built for today’s water use challenges, the JR Max offers a 365-day calendar for optional odd or even date watering as well as any-day-of-the-week and repeating day interval water day capabilities. This irrigation flexibility is further enhanced by three programs, up to seven start times per day and station timing from 1 minute up to 4 hours. Program “C” even has a “looping cycle” for “grow in” periods for sod, seed or misting applications.

Key Features

  • Three independent programs with start-time stacking
    Provide the convenience of three controllers in one
  • Program “C” can be set to a looping function
    Provides continuous moisture for “grow in” (Loop can also be set in seconds)
  • Self-guided programming
    Simplifies programming by prompting the user through irrigation scheduling
  • Multiple watering day options
    Provides flexibility to meet water restriction requirements:
    - 365-day calendar for true odd/even watering
    - Odd/even date watering with 31st day skip
    - 7-day calendar or up to 14 day intervals
  • Program review feature
    Ensures quick programming check and operation review
  • Rugged, lockable, weather-resistant cabinet on outdoor models
    For installation flexibility

Operating Specifications

  • Station run times: 1 minute to 4 hours in 1-minute increments
  • Start times: 3 starts for programs A and B, one start for program C in regular mode, unlimited starts in looping mode
  • Watering schedule: calendar, interval, odd/even
  • Water budgeting: 0-200% in 10% transformer output

Electrical Specifications

  • Transformer input: 120 V a c, 60 Hz – plug-in transformer; usETLc listed
  • Transformer output: 24 V ac, 500 mA
  • Maximum output per station: 24 V ac, .25 amp
  • Maximum total output: 24 V ac, .5 amp
  • Capacity: one station valve plus a master valve

Models &

Model Description
JRMAX-6-120-EXT 6 -Station Outdoor mount
JRMAX-8-120-EXT 8 -Station Outdoor mount Outdoor
JRMAX-6-120 6 -Station Indoor mount
JRMAX-8-120-EXT 8 -Station Indoor mount


  • Outdoor: H: 7 7⁄8”, W: 6 3⁄4”, D: 3 5⁄8”
  • Indoor: H: 4 7⁄16”, W: 5 7⁄16”, D: 1 5⁄8”



  • RS1000 wireless RainSensor™
  • RFS1000 wireless rain/freeze sensor
  • RS500 wired RainSensor™

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