Irritrol Junior Plus 8 User Manual

INSTRUCTION MANUAL
INDOOR DUAL PROGRAM CONTROLLER
WITH MASTER VALVE/PUMP START & WATER BUDGETING
Junior Plus 2/4/6/8
Remove the lower cover. Place the unit on the wall using one slot and one fixed
hole inside the battery slot. Connect the solenoid wires to the terminal block.
One wire from each solenoid should be connected to "C"-Common. The other wire
from each solenoid connects to its respective number on the terminal block.
Connect the transformer wires to the terminal block marked 24VAC.
Only after all your wiring is done and checked, connect the 2 x 1.5 volt AA
alkaline batteries. The display will now be on. Plug the transformer into the
power outlet.
IMPORTANT INFORMATION
•
The NEXT STEP button leads you through the programming steps.
•
Auto Return: If within 3 minutes you do not touch any button, the controller will
automatically return to AUTO mode except from MANUAL mode.
•
Quick Digit Advance: If you press ON/+ or OFF/- continuously, the digits will
advance quickly.
•
Reset Display Back To OFF: In WATERING TIME or START TIME positions.
If you press ON/+ and OFF/- simultaneously and hold for a few seconds, the digits
displayed will reset back to OFF.
•
Program Erase: In AUTO RUN mode, press ON/+ and OFF/- simultaneously until
arrow starts to flash. It will flash 5 times to complete Program Erase.
•
Start Time Stacking: In case of overlap of two or more start times, the controller
will automatically delay the start time until the previous cycle is completed.
BATTERY REPLACEMENT
Replace the 2 x 1.5 volt AA alkaline batteries once a year. Unplug the transformer
before replacing the batteries. Plug in the transformer only after the new batteries are
in place. Replacing the batteries will require reprogramming the controller if the
batteries are not replaced within 15 seconds (before the display fades away).
POWER FAILURE INDICATION
•
If a command to open a zone is initiated during power failure, the "24V" on display
will start flashing.
•
The flashing will stop when the next command to turn on any station is initiated
while power is on.
•
If the fuse is blown, "24V" will also flash. Replace it with a 0.5 amp. fuse.
SOLENOID RATING
The solenoid valve should be rated: 24VAC, 0.35 Amps inrush max. Only 1 solenoid
valve can be connected to each station.
4
Irritrol Systems USA
1-909-785-3623 TELEPHONE
1-909-359-1870 FAX
Irritrol Systems Europe s.p.a.
00-39-765-455201 TELEPHONE
00-39-765-455386 FAX
1
INSTALLATION INSTRUCTIONS

Irritrol Junior Plus 8 Specifications

General

Number of Zones/Stations	8
Start Times per Program	4
Display Type	LCD
Voltage	24 VAC
Cycle + Soak	Yes
Enclosure Rating	NEMA 3R
Run Time per Zone	240 minutes
Power Source	24 VAC
Mounting	Wall mount
Sensor Input	Rain sensor compatible

Summary

Junior Plus 2/4/6/8 Installation

Wiring and Power Connection

Connect solenoid wires to the terminal block, common to "C", and others to respective numbers. Connect transformer wires to 24VAC.

Controller Programming Steps

Setting Time and Day

Navigate to SET TIME/DAY, then use DAY/STN to select the current day and ON/+ or OFF/- to set the current time.

Watering Time Setup

Enter watering time for each station, pressing ON/+ or OFF/- to set duration and DAY/STN to advance to the next station.

Irrigation Days and Cycle Selection

Select specific days to water or choose a day cycle (e.g., every other day) using ON/+ and DAY/STN.

Program Start Time Configuration

Set the start time for Program 1 by pressing ON/+ or OFF/-. Additional start times can be set for Program 2.

Manual Operation Modes

Operate stations individually or run programs manually. Stations close automatically after watering time or 2 minutes.

Auto Run/Off Functionality

Suspend all watering by pressing OFF/- in AUTO RUN mode. Press ON/+ to resume watering.

Water Budget Adjustment

Adjust watering time percentage for all stations in a program from 10% to 200% using ON/+ and OFF/-.

Important Information and Specifications

Operational Notes and Features

Details on NEXT STEP button, auto-return, quick digit advance, reset, program erase, and start time stacking.

Battery Replacement Guidelines

Replace batteries annually. Unplug transformer before, and plug in after new batteries are in place.

Power Failure and Fuse Indication

Indicates power failure or blown fuse with flashing "24V". Replace fuse with a 0.5 amp fuse.

Solenoid Valve Ratings

Solenoid valves should be rated 24VAC, 0.35 Amps inrush max. Only one solenoid valve per station.

Troubleshooting Common Issues

Valves Not Turning On Automatically

Check program, common wire hook-up, controller mode, and transformer installation.

Valve Remains Stuck ON

Verify watering duration, manual lever, disconnect wire for testing, check solenoid for shorts or obstructions.

Valve Fails to Turn ON

Ensure water is on, watering duration is programmed, wires are connected, and check for shorted wires.

Controller Display "24V" Flashing

Indicates power failure or blown fuse. Check wiring, fuse, transformer, and solenoid rating/connections.