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The Ultimate Hardie Rain Dial Programming Guide

How to Program a Hardie Irrigation Rain Dial (Quick Start) The hardie irrigation rain dial is one of the most trusted sprinkler controllers ever made — and if you need to program one fast, here’s what you need to know: Quick Programming Steps: Install a 9V alkaline battery — enables “armchair programming” and clock backup Set current time and day — use the function dial and +/- buttons Set station run times — 1-59 minutes or 1-5.9 hours per station Set start times — up to 3 per program (A, B, C), 9 total per day Choose your watering schedule — any weekday, skip days (1-31), or odd/even dates Turn the dial to Run — your schedule is live The Rain Dial-R Series (sold under both the Hardie and Irritrol brands) supports 3 independent programs, up to 12 stations, and features like Rain Delay, Water Budgeting, and weather-based scheduling.