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PROGRAMMING AND OPERATING INSTRUCTIONS
The CRC-A Controller has some important features you should be aware of before you begin pro-
gramming. Details on how to implement these features will be described in the step-by-step instruc-
tions on the following pages.
• The CRC-A has a DUAL PROGRAM capability which allows watering of grass areas more often
and/or on different days than shrub areas.
• The CRC-A has a PRESET PROGRAM which is built into the controller at the factory. If you do
not wish to establish your own program, after updating the clock, the controller will operate each
station for 10 minutes each day beginning at 8 A.M.
• The CRC-A has a DEFAULT MODE in which the controller will revert back to the PRESET PRO-
GRAM should your own program be lost due to a prolonged power failure.
• The CRC-A has a 14 - day cycle. After completing watering on the 14th day, it will automatically
repeat the cycle beginning with day 1.
• The controller has a backup battery circuit which will keep your program from being lost for up to
24 hours in the event of a power failure. Should the battery you supply go dead the entire dis-
play will blink to indicate the need for a new battery. Install a 9-volt alkaline battery to the battery
SETTING THE CONTROLLER CLOCK
Setting the Day.................................................................
Setting the Hour................................................................
Setting the Minute.............................................................
Which days to water..........................................................
What time to start.............................................................
How long at each station....................................................
THE 'B' PROGRAM.............................................................
ELIMINATING A START TIME............................................
WRITING YOUR PROGRAM...............................................
OPERATING INSTRUCTIONS.............................................
Display Time of Day..........................................................
Display Day of Week.........................................................
Display Station Water Times.............................................
Display Start Time.............................................................
Display Water Days..........................................................
Manually Start a Program..................................................
Manually Advance to Another Station................................
Manually Start a Single Station..........................................
Manually Cancel a Program...............................................
Rain Shutdown...................................................................
CRC-8A, CRC-6A, CRC-4A
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Do you have a question about the CRC-8A and is the answer not in the manual?

Questions and answers

Byron
May 9, 2025

Is a battery required to operate the controller

1 comments:
Mr. Anderson
May 19, 2025

The Rain Bird CRC-8A controller does not require a battery to operate, but it uses a 9-volt alkaline battery as a backup to retain the program for up to 24 hours during a power failure.

This answer is automatically generated

Summary of Contents for Rain Bird CRC-8A

  • Page 1: Table Of Contents

    PROGRAMMING AND OPERATING INSTRUCTIONS CRC-8A, CRC-6A, CRC-4A The CRC-A Controller has some important features you should be aware of before you begin pro- gramming. Details on how to implement these features will be described in the step-by-step instruc- tions on the following pages.
  • Page 2 Setting the Controller Clock Determine the current day’s code number from the chart below. TUES THUR WEEK 1 TUES THUR WEEK 2 EXAMPLE: Today is Friday (05) SET DAY DISPLAY WILL INDICATE: 1. Press CLOCK CHANGE TIME 2. Press repeatedly CHANGE TIME until correct code number appears in the display.
  • Page 3: Establishing Your Own Program

    SET MINUTES EXAMPLE: Current Time of Day is 10:33 A.M. 1. Press CLOCK MINUTE CHANGE TIME 2. Press repeatedly CHANGE TIME until correct minutes appears in the display. AT THIS POINT, THE CONTROLLER WILL OPERATE ON THE FACTORY PRESET PROGRAM; THIS WILL OPERATE ALL STATIONS FOR 10 MINUTES EACH, EV- ERYDAY OF THE WEEK, BEGINNING AT 8:00 A.M.
  • Page 4: What Time To Start

    2. What time to start... EXAMPLE: You want to start watering at 5:00 A.M. PROGRAM 1. Press WATER 2. Press TIMES PER DAY CHANGE DISPLAY WILL INDICATE: TIME 3. Press repeatedly CHANGE TIME until display shows: If you wish to water more than once a day (for a maximum of 3 times per day) EXAMPLE: 2nd watering time at 4:45 P.M.
  • Page 5: The 'B' Program

    4. Set watering time for next station. EXAMPLE: Set watering time for station #2 for 30 minutes. PROGRAM 1. Press DISPLAY WILL INDICATE: STATION 2. Press WATER TIME Program Minutes Station Watering CHANGE Time TIME 3. Press CHANGE TIME until display shows: Set watering times for remaining stations by repeating steps 2 and 3.
  • Page 6 EXAMPLE: To water on MONDAY (@ 10:00 P.M. for 1 hour) PROGRAM 1. Press WATER 2. Press DAYS DISPLAY WILL INDICATE: 3. Press YES/NO until display shows: Program Monday of Watering will Week 1 occur EXAMPLE: NO watering on Tuesday. WATER 1.
  • Page 7: Eliminating A Start Time

    Writing Your Program After Programming Is Complete Once you have completed programming your CRC-A controller, you can return it to displaying the correct time of day as it waits in the automatic mode for the correct time to start. To do this, Press either and your programming is complete.
  • Page 8 Writing Your Program These program tables may be cut out and affixed to the inside of the controller door for handy reference. 1. Which days to water DAYS TO OPERATE "A" "B" (Tu) (Th) (Sa) (Su) (Tu) (Th) (Sa) (Su) 2.
  • Page 9: Operating Instructions

    Operating Instructions Whenever the Controller is in operation (in a cycle) the display will show the station number (for the station in operation) and the remaining time it has left to operate (time is "counting down"). While the Controller is in operation you can display - “Time of Day” - “Start Times" (for "A"...
  • Page 10: Display Start Time

    4. Display Start Times (For “A” and “B” Programs) PROGRAM PROGRAM WATER Press then TIMES PER DAY to display start times for either “A” or “B” programs. WATER TIMES To display all three (3) start times of the program, press two (2) more times.
  • Page 11: Manually Start A Single Station

    8. Manually Start a Single Station PROGRAM PROGRAM Press to display the desired program. STATION WATER Press to display the station you desire to operate. TIME STATION WATER Each time is pressed, the next station will be displayed. TIME SINGLE Then press Now, the station selected will operate for the regular programmed STATION...
  • Page 12 Federal Communications Commission helpful: "How To Identify and Resolve Radio - TV Interference Problems" This booklet is available from the U.S. Government Printing Office, Washington, D.C. © 1986 Rain Bird Corporation Customer Support Center 6991 E. Southpoint Rd., Bldg. #1...

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Crc-6aCrc-4a

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