Irritrol 446PR User Manual
446PR / 446PRI
IRRIGATION CONTROLLER
INSTALLATION AND OPERATING GUIDE
FEATURES
SIX ZONE CONTROL: Turns up to six sprinkler valves on and off
automatically in sequence.
DUAL PROGRAMMING: Allows you to water your lawn and landscape
on separate schedules.
EASY AT-A-GLANCE SETTINGS: Makes it simple to set watering
lengths and days.
MULTIPLE START TIMES: Lets you water up to four times per day -
ideal for new lawns.
EXTENDED WATERING PERIODS: Allows you to water up to 99 min-
utes a day per zone.
PAUSE FUNCTION: Makes it easy to interrupt watering cycles for yard
activities.
MANUAL OPERATING MODE: Allows you to water manually when an
automatic watering cycle is not in progress.
ELECTRONIC CIRCUIT BREAKER: Prevents controller shut-down in
the case of a short circuit in a valve; diagnostic feature displays malfunctioning valve number for easy trouble-shooting.
MASTER VALVE/PUMP START CONNECTION: Automatically turns a
pump or a master valve on and off. (Requires a pump start relay, Model
SR-1, if used with a pump).
TO USE YOUR NEW CONTROLLER MOST EFFECTIVELY, PLEASE
READ THIS MANUAL CAREFULLY AND REFER TO THE MANUAL IF
ANY DIFFICUL TIES ARISE.
NOTE:
trical surges caused by unstable power supply, consult your local supplier
or contractor for additional protection devices which may be required.
For areas which are vulnerable to lightning strikes, or transient elec-
2
TABLE OF CONTENTS
Controller Components . . . . . . . . . . . . . . . . . . . . . . . . . 4–5
Installation Procedures
• Selecting The Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
• Mounting The Controller . . . . . . . . . . . . . . . . . . . . . . . . . 6–7
• Connecting The Valve Wires . . . . . . . . . . . . . . . . . . . . . 7–8
• Connecting APump Start Relay Or Master Valve . . . . . . . . 8
• Connecting The Power Source (Outdoor Models) . . . . 9–10
• Connecting The Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Planning Your Watering Schedule
• Guidelines For Watering . . . . . . . . . . . . . . . . . . . . . . . . . . 11
• Selecting The Right Program . . . . . . . . . . . . . . . . . . . . . . 11
• Filling In The Watering Schedule Form . . . . . . . . . . . . . . . 11
• Watering Schedule Forms . . . . . . . . . . . . . . . . . . . . . . . . 12
Programming Steps
• Setting Correct Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
• Assigning Zones To AProgram . . . . . . . . . . . . . . . . . . . . . 13
• Setting Program Start Times . . . . . . . . . . . . . . . . . . . . 14–15
• Setting Zone Run Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• Setting Program Cycle Days . . . . . . . . . . . . . . . . . . . . . . 15
Manual And Semi-Auto Operation
• Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
• Semi-Auto Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Controller Shut-down / Circuit Breaker
• Controller Shut-Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• Electronic Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . 17
Voltage Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electro-Magnetic Compatibility . . . . . . . . . . . . . . . . . . . . 19
3
1
2
3
4
5
4
6
44
7
8
9
10
11
12
13
Figure 1
CONTROLLER COMPONENTS
4
CONTROLLER COMPONENTS
CLOCK - DAY NOW KEY
1
Allows you to set the current time and day
2
HOURS KEY
Allows you to set the correct hour for the current time as well as the
hour for the desired start times.
MINUTES KEY
3
Allows you to set the correct minute for the current time as well as
the minute for the desired start times.
4
START KEYS
Enable you to set the start times of each programs (two start times
for program A and two for program B).
5
CONTROLLER DISPLAY
It displays the current time or the zone number being watered with its
watering run time when a program is in progress. It also indicates
programming errors and short circuits when detected.
6
PAUSE - SEMI-AUTO KEY
Temporarily interrupts a watering cycle in progress or allows you to
start a semi-automatic watering cycle
7
ZONE MINUTES SWITCHES
Allows you to select the watering time duration for each zone from
2–99 minutes
8
PROGRAM SWITCHES
Allows you to designate each zone to program (A, B, or AB).
9
DAYS SWITCHES
Allows you to set the day interval for each watering program.
TERMINAL SCREWS
10
Terminal connections for the power source, zone 1–6, pump
start/master valve and valve common.
11
BA TTERY CONNECTOR
Connects a 9 volt battery to retain stored watering cycle programs in
case of a power failure.
12
INTERNAL TRANSFORMER (Outdoor models)
Enables the controller to connect to a 120 V a.c., 60 Hz source
(220/240 V a.c., 50 Hz source for the international units).
13
PLUG-IN TRANSFORMER (Indoor Models)
Supplied with 120 V a.c., 60 Hz.
5
INSTALLATION PROCEDURE
WARNING: All electrical components must meet applicable
national and local electrical codes including installation by
qualified personnel. These codes may require an external junction
box mounted on the transformer 1/2" nipple and a means, in the
fixed wiring, of disconnecting AC power having a contact separation of at least 0.120" (3 mm) in the line and neutral poles. Ensure
the AC power source is OFF prior to connecting to the controller.
The wire used for connection to the controller must have insulation
rated at 105° C minimum.
STEP 1 : Selecting The Location
For the 446 PRI (indoor models), choose an indoor location near a standard
120 V a.c. wall outlet. Install the controller in an area protected from weather, such as a garage, and within 5' (1.5 m) of a grounded electrical outlet.
The 446 PR (outdoor model) can be installed almost anywhere, but avoid
exposure to direct sun or irrigation spray. The controller must be powered
by a well grounded AC circuit.
CAUTION: Do not place the controller where temperatures may
exceed 60° Centigrade (140° Fahrenheit) or on a circuit controlled by a
switch or on the same circuit with a high power user (refrigerator, air conditioner, garage door opener, etc.). Malfunctions may result.
STEP 2 : Mounting 446 PR Controller (Outdoor Model)
1. Mount the hanger kit (1 hanger and 1 screw) on the top rear of the con-
troller.
2. Position the controller on the wall slightly below eye level. Mark the
mounting screw location at the top of the hanger’s keyhole slot.
3. Install a #8 mounting screw into the wall at the marked location leaving
the screw head about 1/4" (6 mm) out from the wall.
4. Remove the screw from the controller’s bottom panel. Pull the panel out
to access the two bottom screw holes.
5. Hang the controller on the mounting screw while making sure the screw
head is secured at the top of the keyhole slot. Install the two bottom
mounting screws, then tighten the top keyhole screw securely.
6. Replace the lower bottom to the controller.
6
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