Hunter Pro-C User manual

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PRODUCT INFORMATION
Pro-C Controller
A Complete Family of Full-Featured Residential
and Light Commercial Controllers
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Pro-C Controller
Product Overview .................................................................................1
Product Features and Benefits ..............................................................2
Product Comparisons ..........................................................................11
Technical Information .........................................................................12
Product Explanation ............................................................................12
Installation ..........................................................................................13
Programming ......................................................................................17
Troubleshooting Guide .......................................................................23
SRR Remote Control
Product Overview ...............................................................................24
Product Features and Benefits ............................................................24
Installation and Programming .............................................................26
Technical Information .........................................................................30
TABLE OF CONTENTS

1
Pro-C Controller
A Complete Family of Full-featured
Indoor and Outdoor Residential and
Light Commercial Controllers
For the end user, for the contractor...there has
never been a residential and light commercial
controller so remarkably easy to handle as this.
Presenting the new Hunter Pro-C Controller.
Borrowing the innovative concept of
modular design from its big brother, the ICC,
this latest addition to the Hunter product
line-up is destined to become the leading
controller in its market segment in the years to
come. Starting with a base model of 3 stations,
it is possible to expand the controller up to
15 stations simply by adding plug-in modules.
So, thereʼs no need to bring along a variety of
different-sized controllers to see which one is
best for the job. With its ability to customize
to the particular size you need, the Pro-C will
always be the right choice. Being a modular
system, the new Pro-C also makes inventory
a breeze for contractors—there are only three
different units to stock (indoor cabinets,
outdoor cabinets and station modules).
But, modularity isnʼt all this controller
has to offer, with great features such as
three programs with multiple start times,
independent day scheduling options,
“one touch” manual start and rapid advance,
a programmable event day off, robust heavy-
duty locking plastic cabinet, and superior
surge protection.
The Pro-C controller: delivering maximum
flexibility for landscapes that require a
minimal number of stations.
PRODUCT OVERVIEW
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FEATURES AND BENEFITS
Outdoor or Indoor Models Available
A versatile controller, covering the needs
of any installation
The Pro-C controller is offered as an outdoor
model when the need for weather resistance is
required and as an indoor model for installa-
tions where protection from the elements
is available. Both models are listed with UL
and CE.
Modular Design
One controller does it all; no need to stock
or carry multiple units
Hunter is a leader in
fulfilling customer
wishes and the Pro-C
controller simply the
latest in a long history
of quality irrigation
products. Here is an
impressive controller,
with its modular
design for inventory
management, three stations factory installed,
and the ability to easily add more stations,
this is one well-conceived controller that will
satisfy both contractor and end user alike.
“Custom-tailored” to the Project. Start
with the PC-300 outdoor or PC-300i indoor
3-station controller base model and then
customize it to your project with the addition
of the PCM-300 3-station plug-in modules.
The PCM-900 9-station module can also be
added to expand the Pro-C station capacity to
15 stations. One to three additional modules
can be added covering the zone requirements
of the majority of all residential and light
Outdoors
Indoors
commercial jobs. No longer does the installer
have to spend extra money on a controller with
extra zones that arenʼt necessary.
Easy Inventory Management. Now, only
one controller need be stocked for all projects.
With its modularity, the Pro-C can be called
out as a 3-, 6-, 9-, 12- or 15-station controller
on most irrigation designs, making it the only
controller necessary to keep on hand. Simply
stock the base unit for all jobs and keep a
box of modules to easily add stations to the
controller as required.
Modular Design Eliminates Service
Hassles. When heavy electrical surges
(lightning) hit a controller, the damage it
inflicts can occur in the primary or secondary
circuitry. The Pro-C is the easiest controller
to service with its readily removable primary
power and station modules. Because of
the modular design, when clock repair is
necessary, the simple repair process is to
extract the damaged module from the unit and
replace. The contractor will find that there is
no requirement to remove the controller from
the wall.
Future Expansion. Easy addition of
stations is a component of the modular
concept. When your customers add on to their
landscapes in future projects, the Pro-C is up
to the task. The PCM station modules can be
added, to make future expansion a breeze.
Large LCD Display
Easy to read for schedule review and entry
The large LCD display simplifies
programming, making it easy to read and
verify. In low light conditions, a large display
is a welcome sight to any user.

3
Pro-C Controller
Non-volatile Memory
Holds programs indefinitely; excellent
insurance against unreliable power
The Pro-C has what every user of electronic
controllers has wished for: the ability to keep
all programs in memory without a backup
battery. In the event of a power failure or if
AC power is suspended from the controller by
the user, the Pro-Cʼs non-volatile memory will
maintain programs forever, without need for
a battery. Normal watering will resume when
AC power is restored.
No Battery Required
Maintain time of day up to four weeks
The circuitry of the Pro-C has such low power
consumption that the controller will accurately
track the time of day for up to four weeks
after AC power has been removed from the
controller by the user or in the event of a
power outage. This timekeeping occurs
without need for a battery. When
power is restored the controller will
continue to water, right on schedule.
The controller will also reset its
circuits to allow another 4 weeks of
time keeping.
Self-Diagnostic Electronic Short
Circuit Protection
No fuses to worry about; only faulty
stations stop watering
The Pro-C automatically skips shorted
stations allowing the rest of the system
to operate as normal. The self-diagnostic
electronic short circuit protection system is
very beneficial to the user because of its ability
to aid in identifying field wiring problems.
It is almost as if the controller can trouble-
shoot the system itself.
The self-diagnostic system detects a high
current path—a “short”—through an operating
station (the most common causes of shorts
are faulty solenoids or when a bare valve
common wire touches a bare station control
wire). When a short circuit is detected on
a station, instead of blowing a fuse which
would shut down the entire irrigation system,
the controller will skip over that station and
continue to water the rest of the zones in
the program. The controller will indicate
what zone is shorting by showing the station
number followed by ERR in the LCD display.
The controller will continue to “jump over”
that zone during every watering until the
zone is repaired. To remove the ERR message
from the display, just turn the dial or push
any button.

4
Intuitive Dial Programming
For easy program entry
For contractors and homeowners alike, the
Pro-C provides step by step programming.
No complicated entry functions or repetitive
keystrokes. Just turn the dial to the section
of the program that needs to be changed and
use the plus, minus and next buttons to make
the adjustments. No other programming
method is easier.
Removable Front Panel for
Remote Programming
Set the controller up without having to
stand in front of it
A removable hinge design
allows easy removal of
the front panel without
disturbing field wiring.
With the use of a 9-volt
battery, you can set the
program away from the
cabinet location. This
timesaving feature allows the contractor to
program before going out to the job (also
serves as a great sales demo when talking to a
potential client). The contractor can also give
the homeowner the front panel while the job
is being installed to allow the homeowner to
try the programming functions early on. When
it comes time to actually set up the controller,
the homeowner is completely clued in, making
the whole programming process a very
simple one.
FEATURES AND BENEFITS (continued)
3 Programs (A, B, C) with
Multiple Start Times
Different watering requirements are met
with independent programming
The Pro-C allows for many different
irrigation applications using three completely
independent programs. This is ideal for
various types of plants that have separate
watering day requirements. Each program has
the ability to water up to four start times per
day. The user has complete flexibility with
watering schedules for new seed or sod lawns,
multiple cycles for low infiltration-rate soils,
slopes, morning or evening irrigation and other
watering window restrictions.
Up to Six-hour Station Run Times
Allows accurate watering for all types of
plant material
Each station will operate up to six hours of run
time in any or all three programs. Run times
from 0-120 minutes program in one-minute
increments and then in ten-minute increments
up to six hours. The factory default for all
stations is set at 0 minutes to eliminate any
unneeded stations before programming.
Note: Using the water budget feature, station
run times may only be increased to a
maximum of 6 hours.
Choice of Independent Day
Scheduling Options
Days of the week or 31-day interval for
maximum flexibility
The watering day
schedules in programs
A, B or C may be set up
independently from each
other. In each program,
the choice of Custom (day
of the week), Interval (up to 31-days), Odd or
Even days may be selected. This allows the
user to water on certain days of the week such
as Monday, Wednesday and Friday or water on
a repeating day cycle (Interval) such as every
third day, or odd/even days in any or all three
of the programs.

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Pro-C Controller
365-day Calendar with Leap
Year Intelligence
True odd or even day programming
In many areas of the United States, summer
water rationing is a way of life. With its
365-day, leap year intelligent calendar the
Pro-C makes programming true Odd/Even day
watering possible, automatically correcting for
31-day months. Interval or Day of the Week
scheduling is possible as well, to cover any
watering day restrictions that may be enacted.
Superior Surge Protection
All microcircuits are protected from
electrical spikes/lightning
The Pro-C is equipped with electronic
components called MOVs (Metal-Oxide
Varistor). These MOVs are designed to shunt
electrical surges away from microcircuits
through the controllerʼs grounding circuit.
The Pro-C uses these
MOVs to protect the
controller from minor
power surges coming
in through the primary
(110/230VAC) input
side and also the
secondary output side
(24VAC).
Metal
Oxide
Varistors
Note: For proper results,
the ground circuit must
measure 10 ohms or less.
Global Water Budget/Seasonal
Adjustment
Changing run times could not be easier,
from 10% to 150%
The water budget/seasonal adjustment setting
allows the user to make global changes to the
run times of each zone from 10-150 percent
of the original programmed run time in 10
percent increments. This feature is perfect for
making small changes that are necessary as
the weather changes, without reprogramming
the entire controller. A unique bar graph
(thermometer display) in the large LCD
display lets the programmer know at a glance
what percent from the original settings the
controller is operating the station run times.
The ability to immediately view the recalcu-
lated run times for each of the zones
is another unique feature built into the
seasonal adjustment.
Note: The controller should always be initially
programmed in the seasonal adjustment
in the 100% position.

6
Weather Sensor Compatible
Built-in bypass switch eliminates
extra watering
The Pro-C allows easy connection of any
rain or weather sensor device including
the Hunter Rain-Clik™, along with other
Hunter sensors. With the sensor circuit on the
controller, wiring is fast and easy. Thereʼs a
built-in bypass switch to turn off the sensor
for maintenance. Best of all, the controller will
display Sen Off in the LCD display indicating
when the sensor is interrupting irrigation. In all
cases, use of the sensor does not
alter any programmed watering
schedule. The hookup is as
simple as removing the jumper
that is attached across the SEN
terminals of the controller and
connecting the sensor wires to
the terminals.
Programmable Event Day(s) Off
Maximum versatility when keeping the
water off is important
Need to make certain that the controller does
not water on a specific day or days of the
week? The Pro-C handles this task with ease.
When Interval programming has been selected
as the Day Schedule this event day off
programming overrides the interval function
to keep the controller always off on the day(s)
selected. For example, an interval program
is scheduled to water every third day but
Saturdays have been designated as a “mow
day,” so no watering can occur. Under the
Event Day Off selection, Saturdays can be
turned off. Sports fields, community centers,
schools and parks will find this feature satisfies
their requirements in this regard.
FEATURES AND BENEFITS (continued)
One Touch Manual Start and
Rapid Advance
Simple operation for a quick
check of zones
The One Touch Start and
Rapid Manual Advance feature
increases user-friendliness of
the controller by using fewer
steps to activate stations. This
feature is great for a quick
cycle when extra watering is
needed or if you would like to
scroll through the stations to
inspect the system.
Remote Ready
Provide your controller with simple
and reliable operation away from its
mounting location
The Pro-C is remote ready! A SmartPort®
harness is supplied with the Pro-C controller
to permit the attachment of a Hunter SRR or
ICR remote receiver. The SRR remote control
is great for residential/light commercial sites,
and offers features that other remotes canʼt
at a price that canʼt be beat. The ICR remote
control provides the installer maximum range
capability (up to 2 miles) for large commercial
sites. These easy to install remotes can save
time and money by allowing remote valve
operation away from the controller.
Rain-Clik™

7
Pro-C Controller
Heavy-Duty Cabinet
Built to overcome the elements—
for a long time
The Pro-C is built using a robust heavy-duty
plastic UL listed and NEMA 3R rated cabinet,
which is not subject to UV degradation or
color changes. For faster installation, the
cabinet door hinge pin is removable when the
door is unlocked and open. In addition, the
cabinet uses the same professional key lock
on the outdoor model as the Hunter ICC
commercial controller. The Pro-C cabinet is
also designed with a ¾"-1" knockout option
on the back of the cabinet, and a 1" opening
for low voltage
and a ½" opening
for high voltage
in the bottom of
the cabinet to
accommodate the
wiring needs of
any job.
Programmable
0-7 Day Rain Delay
No need to return to the controller
to turn it back on
The Pro-C allows you to turn off the
controller for a predetermined period of
time (1-7 days) during rainy weather. All
programs are affected, as this delay is global.
After the specified period has elapsed, the
controller will return to automatic mode and
water as scheduled. This delay feature is very
convenient because when the controller is
turned off for an event such as rain or a social
activity, the operator will not have to make a
trip to the site to reactivate the controller. In
residential systems, when the operator uses the
watering delay feature
thereʼs no need to worry
about remembering that
the controller has been
turned off.
Programmable Delay Between Stations
Slow closing valves and well recovery will
never be an issue
A programmable delay between stations solves
the problem of slow closing valves because of
a hydraulic overload condition. The delay also
solves the problem of a system operating off of
a slow filling well, allowing the well to recover
between zones. The Pro-Cʼs programming will
allow it to fit into any situation where a delay
is necessary, as the delay is programmable up
to four hours. Delays from 0 to 60 seconds are
allocated in 5-second increments and then up
to 4 hours in 1-minute increments. Note: If the
MV circuit is programmed to operate on the
zone, it will stay hot for the first minute of any
programmed delay.

8
Pump Start/MV Circuit,
Programmable By Station
Activate a pump or master valve
only when needed
A programmable pump start circuit can
activate a pump relay or master valve by
individual zone. For systems that require
only certain zones to receive a boost in
pressure from a pump (such as rotor zones)
this programmable MV circuit feature is the
perfect solution, since it allows the pump to
only operate when needed.
Internal Junction Box
(on Outdoor Model Only)
Primary power connection made
inside the controller
No extra trips to the distributor for a forgotten
electrical box. The Pro-C comes with a
primary power junction box built inside the
cabinet. Installation time is reduced because a
J-Box does not have to be fitted and screwed
down tight. All that is required for proper
installation is electrical conduit.
24VAC Valve Test
Easy arrangement of zones during
wire hookup
When wiring up the controller so numbered
irrigation zones will run in sequential order,
installers find that an “always on” 24VAC
valve test terminal post simplifies this process.
Touching the valve wire to a hot 24 volt
terminal to determine numbered zones without
having to program a ʻmanual startʼ in the
controller makes wire installation quick
and efficient.
FEATURES AND BENEFITS (continued)
Internal
J-Box
Primary Voltage Source Choices
Indoors or outdoors, operates off a variety
of power sources
Pro-C models can be supplied with a
115VAC/60 Hz transformer for domestic use
or a 230VAC/50 Hz transformer for interna-
tional use. This versatile transformer selection
enables users to install the Pro-C anywhere in
the world.
AM/PM or 24 Hour Clock Settings
Choose your favorite method
of timekeeping
Operating the controller in either
AM/PM mode or in 24-Hour
mode is selectable by the user.
The Pro-C allows the user to
pick the time format that is most
desirable. Wherever you are in the
world, the Pro-C can operate under
local time keeping preferences.
Single Station Manual Start
If all that is needed is a little extra on a
single zone!
Many times throughout the year and for many
reasons (e.g., watering fertilizer or pesticides
into the soil, spot seeding), the user will want
to add extra water to a particular zone. With
single station manual start, the Pro-C is able
to accomplish that task. Just turn the dial to
Manual-One Station, use the arrow button
to move to the desired station, then turn the
dial to the Run position. The user may also
increase or decrease the run time setting
if preferred. After the zone is finished, the
controller will return to automatic mode with
its original schedule, even if modified for the
manual operation.

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Pro-C Controller
Start Time Stacking
Prevent hydraulic overload
Preventing hydraulic overload is very
important when designing irrigation systems,
especially residential ones. All electronic
controllers such as the Pro-C allow the user to
input start times into the programs that could
cause the controller to overlap station run
times. This occurs when the station run times
add up to more minutes than the amount of
time programmed between the start times. In
the Pro-C, the start times will stack and not
begin to actually water until the previous start
time has completed its run through of all zones
programmed. This great feature will eliminate
the possibility of more than one zone operating
at a time, causing the system to perform poorly
when water pressure and flow are minimal.
Multi-language Capability
User friendly in all parts of the world
The Pro-C line is available as a multi-language
controller family. Separate customization kits
are available in Spanish (INT-451), French
(INT-452), Italian (INT-453), and German
(INT-454). These kits include an ownerʼs
operation manual, door instruction card and
a faceplate overlay that replaces the English
version included with the controller.
Operate Three 7.2 VA Solenoids
Simultaneously
Able to accommodate larger water
volume systems
The Pro-C has the power capacity to operate
up to three 7.2 VA solenoids simultaneously.
There are times when the need to operate two
valve solenoids off of one station terminal (and
one solenoid on the pump start/MV terminal)
is required. This type of operation may be the
result of reduced watering windows, a retrofit
with a city water system switching over to a
water well system, or low volume (drip) zones
added to regular zones. Whatever the reason
may be, the Pro-C can handle it.
Assign Zones to Any or All Programs
Complete versatility for any
watering requirement
Any station can be assigned to any or
all programs in the Pro-C, making the
Pro-C a truly versatile controller. This feature
allows zones to have more than one watering
schedule if required by the landscape.
Automated Chronological Ordering of
Start Times
No more “phantom” starts!
When more than one start time is entered
into a program, in any order of sequence,
the Pro-C automatically shifts the start times
in ascending order from the earliest start time
to the latest start time. The Pro-C will also
shift or “rubber band” the start times if times
were inadvertently added after empty start
time slots. The controller will fill the start #1
slot first, and then the #2 slot second, and
so on making it easier for the user to check
all times. No “phantom” starts will occur from
an unknown start time buried deep in
the program.

10
Easy Access Wire Compartment
Simplified wire hookups
The Pro-C permits fast and easy connection
of wiring in the spacious wiring compartment.
With the sturdy terminal block, the wire
can be inserted
without bending for
simplified installa-
tion. The primary
terminal block has
dedicated terminal
screws for both a
sensor hookup and a
24VAC connection
for accessories.
Each terminal will
accommodate two
20-12 gauge wires.
Upgrade to Centralized Control
Network through IMMS™ to make
programming changes and monitor
system conditions from your computer
The Pro-C can be networked to your computer
through the Hunter Irrigation Management and
Monitoring System™ (IMMS). The IMMS
allows the user to program controller functions
that would typically be handled directly at
each controller. Scheduling days to water, run
times, start times and more can be done from
a single computer at a desk miles away from
the installation. A key function of the IMMS is
its ability to monitor changing conditions with
the aid of such options as flow sensors, rain
sensors, and other weather-sensing devices. No
system available today is more cost effective
than the Hunter IMMS. Best of all it is able to
team with any or all of the Hunter controllers,
including the Pro-C.
Test Program
Simple test program feature allows for
quick system checks
The Pro-C has a built-in test program feature
that allows the user to run all stations for a
predetermined number of minutes. This feature
is great for conducting a quick system check
on all zones or to activate valves during
winterization.
The one button activation and single run
time entry makes the test program simple and
easy to use.
FEATURES AND BENEFITS (continued)

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Pro-C Controller
PRODUCT COMPARISONS
Hunter®
Pro-C
Rain Bird®
E-CLASS
Rain Bird®
ESP
Rain Bird®
ESP-M
Irritrol®
TOTAL
CONTROL
Irritrol®
RAIN DIAL™
PLUS
Irritrol®
RAIN
DIAL
Nelson®
SMARTZONE
EZ
Weathermatic®
WEATHERMATE
Toro®
CUSTOM
COMMAND
True Modular Design with Station Expansion Modules ✔ ✔
Models for up to 15 stations in one family ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Non-Volatile Memory Saves Programs Indefinitely ✔ ✔ ✔ ✔ ✔ ✔ ✔
Battery Not Required To Keep Current Time and Day
(Up to 4 Weeks) ✔ ✔
Electronic Short Circuit Protection - No Fuses to
Replace or Breakers to Reset ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Intuitive Dial Programming ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Removable Face Panel for Remote Programming ✔ ✔ ✔ ✔ ✔ ✔
3 Independent Programs (A,B,C) ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Minimum of 4 Daily Starts per Program ✔ ✔ ✔ ✔ ✔
Up to 12 Starts Per Day ✔ ✔ ✔ ✔ ✔
Station Run Times Can Be Programmed
For Up to 6 Hrs. ✔4✔5.9 5.9 ✔ ✔ ✔
True Odd / Even Programming
(365 day calendar clock) ✔ ✔ ✔ ✔ ✔ will water on 31st ✔ ✔
1-31 Day Interval Programming ✔ ✔ 30 30 30 30
Choice of Independent Day Scheduling Options
By Programs ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Primary and Secondary Surge Protection ✔ ✔ ✔ ✔ primary
only ✔ ✔ primary only
primary
only ✔
Seasonal Adjustment / Water Budget ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Seasonal Adjustment With Visible
In-Display Thermometer ✔
Weather Sensor: Displays When Sensor is Active ✔ ✔ ✔ ✔
Rain Sensor Override Bypass on Front Panel ✔ ✔ ✔ ✔
Programmable Event Day Off for All Day Schedules ✔ ✔ odd/even
only
odd/even
only
odd/even
only
odd/even
only
One Touch Manual Start / Rapid Advance ✔ ✔ ✔
Remote Control Ready From Factory ✔ ✔ ✔
Programmable 0-7 Day Rain Delay ✔ ✔ ✔
Programmable Delay Between Stations ✔
Pump Start/MV Circuit, Programmable By Station ✔
NEMA 3R Rated Outdoor Enclosure ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
Key Lock on Outdoor Cabinet ✔ ✔ ✔ ✔
Electrical Knockouts on Back of Cabinet ✔ ✔
Primary Power Connections Made Inside Cabinet -
No Junction Box Required ✔ ✔ ✔ ✔
24VAC Valve Test Terminal ✔ ✔ ✔ ✔ ✔
Choose AM/PM or 24-Hour Clock Mode ✔ ✔
Multi-Language Capability ✔ ✔ ✔
Upgradeable to Central Control ✔
User Programmable Test Cycle ✔ ✔ ✔
Rain Bird® is a registered trademark of Rain Bird Sprinkler Manufacturing Corp.
Irritrol® is a registered trademark of Irritrol Systems
Rain Dial™ Plus is a registered trademark of Irritrol Systems
Rain Dial™ is a registered trademark of Irritrol Systems
Nelson® is a registered trademark of L. R. Nelson Corporation
Weathermatic® is a registered trademark of Weathermatic Corp.
Toro® is a registered trademark of the Toro Company

12
Operating Specifications
• Outdoor models, 115VAC transformer with
internal junction box
• Indoor model, 115VAC two prong
plug-in transformer
• Station output 24VAC .56 Amps
• Transformer output 24VAC 1.0 Amps
• Capable of operating equivalent of
3 solenoids simultaneously
• Operating Temperature: 0 - 150 degrees F
• NEMA rated outdoor cabinet
• UL Listed
Dimensions
• Indoor Model: 8.3" H x 9.6" W x 3.7" D
• Outdoor Model: 8.9" H x 9.9" W x 4.3" D
Models
PC-300i – base model indoor plastic cabinet
with plug-in 115VAC transformer,
expands to 15 stations
PC-300 – base model outdoor locking plastic
cabinet with 115VAC transformer,
expands to 15 stations
PCM-300 – 3 station plug in module for use
with any PC controller model
PCM-900 – 9 station plug in module for use
with any PC controller model (expands
Pro-C station capability to 15 stations
with 1 PCM-300 installed)
TECHNICAL INFORMATION
Additional Features
• 4 start times per program for repeat
watering needs
• Removable front panel for field or
desktop programming; Panel interchange-
able between indoor and outdoor units
• Up to six hours run time on all stations
• Automated chronological ordering of start
times/start time stacking
• 365-day calendar with leap year
intelligence
• Programmable event day off allows specific
day(s) to be designated as always “off”
• Rain Sensor bypass switch compatible
with micro-switch based sensors, displays
when sensor is active
• Programmable delay between stations
0-4 hours for well recovery or
slow-closing valves
• Programmable rain delay for 1-7 days
• Compatible with Hunterʼs SRR and
ICR remote control systems
• Upgradeable to central control with Hunter
IMMS™
SPECIFICATION GUIDE
EXAMPLE: PC - 300i
MODEL
PC = Pro-C
Controller
FEATURES
300i = 3-Station Base Unit Controller, Indoor Model, Plug-in
Transformer, Expands to 15 Stations
300 = 3-Station Base Unit Controller, Outdoor Model, Internal
Transformer, Expands to 15 Stations
PCM 300 = 3-Station Plug-in Module for use with any PC Controller Model
900 = 9-Station Plug-in Module for use with any PC Controller Model

13
Pro-C Controller
INSTALLATION
Connecting Valves and AC Power
1. Route valve wires between control valve
location and controller.
2. At valves, attach a common wire to either
solenoid wire of all valves. This is most
commonly a white colored wire. Attach a
separate control wire to the remaining
wire of each valve. All wire splice
connections should be done using water-
proof connectors.
3. Open hinged faceplate on the controller to
access the terminal strip area.
4. Route valve wires through the conduit and
attach conduit to the controller at the large
conduit opening on the right side of the
bottom of the cabinet.
5. Strip ½" (13 mm) of insulation from ends
of all wires. Secure valve common wire to
C (Common) terminal on the first module.
Then attach all individual valve control
wires to appropriate station terminals.
Note: It is recommended that a licensed
electrician perform the following power
installation.
Indoor Cabinet
Route transformer cable through the left side
of the controller and connect the wires to
the screws marked AC. Before closing the
compartment door make sure wires hang in
the slotted areas so that the door can snap shut
without damaging wires.
Transformer
Valve 1
Valve 2
Valve 3
Valve 4
3 Wires AC2 Black
AC1 Black
GND Green
Connect the Two Black
Transformer Wires to
the Two AC Terminals
and the Green Wire to
the GND Terminal alve Common Wire
alve
Wires
V
V
Outdoor Cabinet
Route AC power cable and conduit through
the ½" (13 mm) conduit opening on the left
side of the bottom of the cabinet. Connect
the wires to the transformer wires located
inside the junction box. International units
are supplied with a built in terminal strip.
Always use a UL listed conduit ½" (13 mm)
male adapter when installing the AC wiring.
Insert the adapter (male threads first) into the
½" hole at the bottom of the controller until it
enters the wiring enclosure. Attach the nut to
the adapter inside the enclosure.
NOTE: It is usually best to connect all field
wires prior to powering up the computer.
Valve Common Wire
Valve 1
Valve 2
Valve 3
Valve 4
Valve
Wires
230 or 250 VAC
110 VAC

14
Connecting Station Modules
The Pro-C controller is supplied with a
factory-installed base module for up to 3
stations. Additional modules may be added in
increments of 3 stations (PCM-300) or a single
9-station (PCM-900) to expand the controllerʼs
station capability to 15 stations. Additional
modules are sold separately.
Note: The use of a PCM-900 to expand your
controller to 15 stations requires that
one PCM-300 be installed in the first slot
(stations 4-6) and the PCM-900 in the
upper two slots.
The Pro-C utilizes automatic module
recognition firmware (Pro-C controllers manu-
factured Nov. 2003 and after) to identify when
PCM modules are installed or removed from
the controller. This feature will recognize the
correct number of stations without having to
reset or cycle power to the controller.
The Pro-C controller is designed with a
simple to use Easy-Lock™ feature that assures
that the modules are firmly secured into the
controller. The Easy-Lock can lock or unlock
all modules at one time by simply pushing the
Easy-Lock slide.
Note: The Easy-Lock feature was added to
Pro-C controllers dated coded 12/01/02
or newer.
1. Slide the Easy-Lock into the
unlock position. Insert the
module(s) into the appropri-
ate sequential position in the
back of the controller.
2. Once all of the modules
are in place, slide the
Easy-Lock into the locked
position to secure all the
modules into the controller.
3. The Pro-C will automatically recognize the
correct number of stations. It is not neces-
sary to press the reset button or cycle the
power to the controller.
Connecting the Battery (Optional)
Connect a 9-volt alkaline battery
(not included) to the battery terminals
and place in the battery compartment in the
controller cabinet. The battery allows the
user to program the controller without AC
power. Watering will not occur without AC
power. Since this controller has non-volatile
memory, the program clock and calendar will
be retained during a power outage even if no
battery is installed.
NOTE: Complete this section only if you have
a master valve installed. A master valve is a
normally closed valve installed at the supply
point of the main line that opens only when the
automatic system is activated.
Connecting a Master Valve
1. At the Master Valve, attach the common
wire to either solenoid wire of the valve.
Attach a separate control wire to the
remaining solenoid wire.
2. Route the wires into the controller via the
field wire conduit.
3. Connect either wire from Master Valve to
the P/MV terminal. Connect remaining
wire to the C (Common) terminal.
INSTALLATION (continued)
9 Volt Battery
Valve Common Wire
Valve 1
Valve 2
Valve 3
Valve 4
Valve
Wires
Master Valve
Master Valve Wire

15
Pro-C Controller
Sensor Wire to SEN
Mini-Clik®
Weather Sensor
Sensor Wire to SEN
NOTE: Complete this section only if you have
a pump and pump start relay installed. A pump
start relay is an electronic device that uses a
signal current from the irrigation controller to
activate a pump to provide water to your system.
Connecting a Pump Start Relay
The controller should be mounted at least
15 feet (4.5 m) away from both the pump start
relay and the pump. When a pump is to be
operated by the controller, a pump start relay
must be used. Hunter offers a full range a
pump start relays for most applications.
1. Route a wire pair from the pump relay into
the controller housing.
2. Connect a common wire to the terminal slot
C (Common) and the remaining wire from
the pump relay to the P/MV screw slot.
Relay holding current
draw must not exceed
.28 amps. Do not connect
the controller directly to
the pump—damage to
controller will result.
Connecting a Weather
Sensor (Not Included)
A Hunter Mini-Clik®
rain sensor or other type of micro-switch
weather sensor may be connected to the Pro-C.
The purpose of this sensor is to stop watering
when precipitation is sufficient. The sensor
connects directly to the controller and allows
you to easily override the sensor by using the
Rain Sensor bypass switch on the controller.
Common Wire
Master Valve Wire
PSR Series
Pump Start Relay
To Pump
15' Minimum (4.5 m)
High Voltage in to Relay
NOTE: If the rain sensor switch is left in the
ACTIVE position and no sensor is connected
and the jumper has been removed, the display
will read SEN OFF and no irrigation will occur.
To eliminate this problem when no sensor is
connected, leave the switch in the BYPASS
position or install a short jumper wire between
the sensor terminals.
1. Route the wires from the rain sensor up
through the same conduit used for valve
wiring.
2. Remove the jumper from the two SEN
terminals.
3. Connect one wire to the SEN terminal and
one to the other SEN terminal on the power
module.

16
Connecting an SRR or ICR Remote
Control (Not Included)
The Pro-C controller
is shipped with a
SmartPort® wiring
harness, allowing for
fast and easy use of
Hunter remote controls.
The remote makes it
possible for contractors
and end users alike
to operate a system
without having to walk
back and forth to the
controller.
To utilize the SRR or ICR Remote Control
System you must install the SmartPort® outlet.
1. Install a ½" female threaded “Tee” in the
field wiring conduit approximately
12" below the Pro-C.
2. Feed the red, white, and blue wires of the
harness through the base of the “Tee”
and into the wiring compartment as
shown in Fig. 1.
3. Screw the SmartPort harness housing into
the “Tee” as shown in Fig. 1.
4. Access the terminal
strip area and attach
the red wire to the
bottom most AC
screw slot, attach
the white wire to the
upper AC screw slot
and attach the blue
wire to the screw slot
marked REM.
The SmartPort is now ready for SRR or ICR
remote control use. Please refer to the Ownerʼs
Manual for further information or contact
your local Hunter distributor for ordering
information.
INSTALLATION (continued)
1/2" Thread
To Controller
Pre-assembled Assembled
Pre-assembled Assembled
Red
Blue
White
NOTE: Any extension of the wiring on the
SmartPort® may result in an error message in
the controller display and possible malfunction
of the remote unit due to radio interference. In
some situations, lengthening of the harness may
work fine, in others it may not work at all (it is
site specific). In either case, extending the wiring
harness should be done using shielded cable to
minimize the possible effects of electrical noise.
For easiest installation, order a new Hunter
SmartPort shielded cable wiring harness
(part #SRR-SCWH) with a full 25 feet of
shielded cable.
Power Failures
Due to the possibility of power failures, the
controller has non-volatile memory to preserve
the clock, calendar, and program indefinitely.
There is no default program so there will be no
surprise watering.
Controller
Receiver
Outdoor Installation
(Temporary Connection
of Receiver Only)
Indoor Installation

17
Pro-C Controller
PROGRAMMING
Programming the Controller
Two key features of the Pro-C that make
programming a snap are its clear, easy-to-read
LCD display and its easy-to-use dial design.
The Pro-C display shows time and day
when the controller is idle. The display
changes when the dial is rotated to indicate
the specific programming information to enter.
When programming, the flashing portion of
the display can be changed by pressing the
or buttons. To change something that is
not flashing, press or until desired field
is flashing.
The Pro-C controller offers maximum
scheduling flexibility including three
programs, each with up to 4 daily start times,
permitting plants with different watering
requirements to be separated on different
day schedules. Multiple start times permit
morning, afternoon and evening watering,
perfect for the establishment of new lawns
and thirsty annual flowers. A built in
365-day calendar clock accommodates
odd/even watering restrictions without
requiring monthly reprogramming. Or, just
simply designate the days of the week you
want to water or use the convenient day
interval watering.
NOTE: A basic programming rule is that whatever
symbol or character is flashing will be the item
programmed. For instance, if the hour is flashing
when setting the time, the hour can be changed
or programmed. For illustration purposes,
flashing characters are in Gray type.
Setting the Current Date and Time
1. Turn the dial to the
SET CURRENT
DATE/TIME
position.
2. The current year
will be flashing
in the display. Use the
and buttons to
change the year. After
setting the correct year,
push the button to
proceed to setting the month.
SET CURRENT
DATE / TIME
3. The month and day
will be in the display.
The month will be
flashing. Use the
and buttons to
change the month. Press the button to
proceed to setting the day.
4. The day will be
flashing: Use the
and buttons to
change the day of the
month (The day of
the week is automatically selected.) Press
the button to proceed to setting the time.
5. The time will be
displayed: Use the
and buttons
to select AM, PM,
or 24 hr. Press the
button to move to hours. Hours will
be flashing. Use the and buttons
to change the hour shown in the display.
Press the button to move onto minutes.
Minutes will be flashing. Use the and
buttons to change the minutes shown in the
display. The date, day, and time have now
been set.
Setting Watering Start Times
1. Turn the dial to the SET WATERING
START TIMES position.
2. The factory preset is set on program A.
If necessary you can select program B or C
by pressing the button.
3. Use the and
buttons to change
the start time.
(Advances in
15-minute incre-
ments.) One start time will activate all
stations sequentially in that program. This
eliminates the need to enter a start time
for each station. Multiple start times in a
program can be used for separate morning,
afternoon, or evening watering cycles.

18
4. Turn the dial to SET STATION RUN
TIMES to continue programming the
selected program.
5. Press the button to add an additional
start time, or for the next program.
NOTE: Regardless of the order in which the start
times are entered, the Pro-C will always arrange
the start times in chronological order when the
dial is moved off the SET WATERING START
TIMES position.
Eliminating a Program Start Time
With the dial set to the
SET WATERING
START TIMES position,
push the and
buttons until you reach
12:00 a.m. (Midnight).
From this position push the button once to
reach the OFF position.
NOTE: If a program has all four start times
turned off, then that program is off (all other
program details are retained). Because there
are no start times, there will be no watering with
that program. This is a convenient way to stop
watering on one program only without turning the
dial to the off position.
Setting Station Run Times (Length of
Watering for Each Area)
1. Turn the dial to the
SET STATION
RUN TIMES
position.
2. The display will
show the last
program selected (A, B, or C) the station
number selected, and the run time for that
station will be flashing. You can switch to
another program by pressing the button.
3. Use the and buttons to change the
station run time on the display.
4. Press the button to advance to the next
station.
5. Repeat steps 4 and 5 for each station.
PROGRAMMING (continued)
SET
WATERING
START
TIMES
SET STATION RUN TIMES
6. You may set station
run times from 1
minute to 6 hours.
7. You can move
between programs
while staying on the same station.
However, it is recommended that one
program is completed before going on to
the next program. Jumping between
programs can be confusing and may result
in program errors.
Setting Days to Water
1. Turn the dial to the
SET DAYS TO
WATER position.
2. The display will show
the last program
selected (A, B, or C)
the station number selected, and the run
time for that station will be flashing. You
can switch to another program by pressing
the button.
3. The controller displays currently
programmed active day schedule informa-
tion. This dial position provides four
different water day options: choose to
water on specific days of the week, you
can choose interval watering, or choose
to water on odd days or even days. Each
program can only operate using one type of
water day option.
SET DAYS TO WATER