Hunter RAIN-CLIK WR-CLIK Operating instructions

WR-CLIK Wireless Rain-Clik
WRF-CLIK Wireless Rain/Freeze-Clik
Rain Sensor Shutoff for Automatic Irrigation Systems
Owner’s Manual and Installation Instructions

TABLE OF CONTENTS
Features.................................................................................................................................................................3
Wireless Rain-Clik™Components........................................................................................................................4
Mounting the Receiver.........................................................................................................................................6
Mounting the Transmitter ..................................................................................................................................10
Adjustments and Operation..............................................................................................................................11
FCC Notice..........................................................................................................................................................17
FCC Declaration of Conformity.........................................................................................................................18
Industry of Canada Notice.................................................................................................................................20
CE & Australia Notice.........................................................................................................................................21
Notes ...................................................................................................................................................................22

3
FEATURES
Wireless Rain-Clik™sensors attach quickly and easily to your controller. Wireless Rain-Clik™
features include:
1. Quick Response™– Unique technology that
turns off the irrigation system immediately
rather than after it has accumulated a fixed
amount of rain. No calibration is required.
2. Maintenance-Free Design – Provides trouble-
free operation for up to ten years. There are
no batteries to replace.
3. Wireless operation up to 800 ft. (275 m) –
No wires are required between the rain sensor
and controller.
4. Two models available:
Wireless Rain-Clik™(WR-CLIK) – Acts as a
switch to deactivate automatic watering of
your irrigation controller when it rains. Once
rain has stopped and the sensor has dried out,
automatic irrigation will resume.
Wireless Rain/Freeze-Clik (WRF-CLIK) – The
Wireless Rain/Freeze-Clik includes a freeze
sensor that is designed to keep the irrigation
system from operating when temperatures
drop to 37˚F or below. When temperatures rise
above 37˚F, the sensor will enable automatic
watering.
5. Automatic Synchronization – The Wireless
Rain-Clik™transmitter will send wireless
signals every hour to the receiver to assure
that the sensor and receiver are continuously
synchronized.
6. Lost Communication/Battery Status
Indication – The Sensor Bypass LED will flash
RED if the receiver has not received a signal
from the transmitter. This can indicate a low or
dead battery.

4
WIRELESS RAIN-CLIK™COMPONENTS
Wireless Rain-Clik™Transmitter
1. Manual Test Spindle – Press and hold
the manual test spindle to confirm proper
operation of your transmitter.
2. Vent Ring – Used to adjust the reset rate
or dry out time for the sensors. Opening
the vents will decrease the reset rate, while
closing the vents will increase the time it
takes for the discs to dry out.
3. Radio Antenna – Transmits a wireless signal
to the receiver up to
800 ft. (275m). It is
recommended that the
antenna be oriented
vertically
4. Mounting Arm – Metal extension arm for
mounting the
sensor.
5. Battery Status
LED – Used to
determine the
status of the sealed
battery. Pushing the manual test spindle will
flash the LED light indicating that the battery
is good.
2
1
Vents
4
3
5

5
WIRELESS RAIN-CLIK™COMPONENTS
Wireless Rain-Clik™Receiver
1. Bypass Button – Allows automatic or manual
watering when the sensor is active.
2. Sensor Bypass LED – Indicates when sensor
has been bypassed.
3. Sensor Status LED – Used to indicate the
status of the sensor.
4. Radio Antenna – Receives a wireless signal
from the transmitter up to 800 ft. (275m) It
is recommend that the antenna be oriented
vertically.
5. AC Power Wires – The two yellow wires
are attached to a 24 VAC source from
the controller.
6. Sensor Wires – The sensor wires are
attached to either the sensor terminals in the
controller or in-line with the valve common
wire.
Blue/White Wires (used for normally closed
sensor applications)
Blue/Orange Wires (used for normally open
sensor applications)
7. Rubber Cover – Used to protect the receiver
when mounted in outdoor locations.
White
Blue
Yellow to 24 VAC Power
Orange
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS
Blue/White wires to normally
closed sensor terminals
Orange/White wires to normally
open sensor terminals
2
3
5
6
4
1
7

6
MOUNTING THE RECEIVER
Wiring the Receiver to Your Controller
Using the hardware supplied, mount the
receiver to the wall next to the irrigation
controller. It is recommended that the receiver
be installed away from sources of electrical
interference and metal objects to maximize
communication range. Make sure to attach
the rubber cover under the receiver when
installing the receiver in an outdoor location.
Warning: This unit is designed to be installed
in conjunction with 24 VAC circuits only. Do not
use with 110 or 220 VAC circuits.
Wiring the Receiver to a Hunter SRC
1. Attach the two yellow wires to the
AC terminals.
2. Attach the blue wire to the RS terminal.
3. Attach the white wire to the C terminal.
4. Attach the valve common wire to the
RS terminal.
O Used for normally open
sensor applications
R RS C 1ACAC 2 3
W
B
Y
Y
Common Wire
to all Valves
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS

7
MOUNTING THE RECEIVER
Wiring the Receiver to a Hunter X-Core, Pro-C,
ICC and I-CORE
1. Remove the sensor jumper across the two
SEN terminals in the controller.
2. Attach the two yellow wires to the 24
VAC terminals.
3. Attach the blue wire to one SEN terminal and
the white wire to the other SEN terminal.
SEN
SEN
C
TEST
P MV
AC
AC
G
REM
B
W
Y
Y
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS
Wiring the Receiver to a Hunter ACC
1. Connect the blue and white wire to any of
the four Sensor Terminal pairs (Sen 1 shown).
2. Attach yellow wires to 24VAC and COM
terminals.
3. Use features at the “Set Sensor Operation”
dial position on ACC to complete setup.
4. See ACC owner’s manual for further details.

8
MOUNTING THE RECEIVER
Wiring the Receiver to Other Controllers:
Normally Closed Sensor Applications
1. Attach the two yellow wires to the 24
VAC terminals.
2. Attach the blue and white wire to the sensor
terminals (if available) or in-line with the valve
common wire.
P MVC AC AC
W
B
Y
Y
O
Common Wire
to all Valves
Used for normally
open sensor
applications
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS

9
MOUNTING THE RECEIVER
Normally Open Sensor Applications
A few controllers on the market require
normally open rain sensors. To attach the
receiver to this type of controller, attach the
blue and orange wire to the sensor input.
Controllers with 24 VAC Solenoids and
a Booster Pump
1. Locate the common wire to the solenoid
valves and the common wire to the pump
relay. If these two wires are connected to
the “common” terminal on the controller,
disconnect both of them.
2. Twist together these wires along with one of
the wires from the Wireless Rain-Clik™and
secure with a wire nut.
3. Attach the other wire from the Wireless Rain-
Clik™receiver to the “common” terminal on
the controller.
Normally-
Open Relay
1 2 3 4C
Solenoid
Valves
Common
Wire to All
Valves
Pump
or
MV
Line-In
Line-Out (to Pump)
AC AC
Y
Y
W
B
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS
Note: The pump circuit output must be 24 VAC. Do
not proceed if 115 VAC.

10
MOUNTING THE TRANSMITTER
Standard Mounting
Using the screws
provided with your
sensor, mount the
transmitter on any
surface where it
will be exposed
to unobstructed
rainfall, but not
in the path of
sprinkler spray. The
sensor should be
oriented upright
(as pictured), but the swivel bracket can be moved
for mounting on any angled surface. Loosen the
locknut and screw before swiveling the bracket, and
then re-tighten.
Gutter Mounting (Optional)
The sensor gutter
mount can be
purchased as an
optional accessory
for your Wireless
Rain-Clik
™
(order
p/n SGM). The
SGM allows the
transmitter to be
mounted directly
to the edge of
a gutter. Install
the SGM on the transmitter by removing the
metal extension arm supplied with your sensor
and reinstalling the SGM. Position the gutter
mount on the edge of the gutter and twist the
thumbscrew to secure it in place.
SGM
Standard Mount Gutter Mount

11
ADJUSTMENTS AND OPERATION
Hints for mounting the transmitter
•Choose a location such as the side of a
building or post. The closer the transmitter is
to the receiver, the better the reception. Do
not exceed 800 ft (275 m).
•To assure maximum range in communication,
mount the receiver and transmitter away
from sources of electrical interference (i.e.
control panels, transformers, etc.) or metal
objects. Best performance is obtained when
no physical obstruction is between the
transmitter and receiver.
•Correct placement of the Wireless Rain/
Freeze-Clik model is important for accurate
temperature sensing. The best location
would be out of direct sunlight.
•The reset rate refers to the amount of time
it takes for the sensor to dry out sufficiently
for the sprinkler system to be allowed to
come back on. The mounting location will
affect this rate. For example, mounting the
transmitter in a very sunny location may
cause the sensor to dry out sooner than
desired. Similarly, mounting the sensor in
constant shade may keep the sensor from
drying out sooner.

12
ADJUSTMENTS AND OPERATION
Transmitter Operation
There is nothing to set up with the
Wireless Rain-Clik™.
Receiver Operation
The receiver has two LED lights that indicate
the state of the system.
1.
SENSOR STATUS LED:
RED – Sensor is wet
(watering disabled)
GREEN – Sensor dry
(watering enabled)
YELLOW – Sensor is in
addressing mode
2. SENSOR BYPASS LED:
RED – Rain sensor is bypassed (even though
the sensor is bypassed, the STATUS LED
will continue to alert you of the state of the
sensor (wet or dry).
OFF – Rain sensor is enabled.
FLASHING RED – Indicates that
communication between the transmitter and
receiver was lost.
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS
Note: When you rst apply power to the
receiver, the SENSOR STATUS LED will be RED.
Press the manual test spindle on the transmitter
for 5 seconds and release the spindle. The
SENSOR STATUS LED will turn GREEN indicating
proper operation.

13
ADJUSTMENTS AND OPERATION
Bypassing the Sensor
The sensor may be bypassed by using the
built in bypass feature on the receiver. To
bypass the sensor, press the SENSOR BYPASS
button on the receiver. The bypass status light
will turn red when the sensor is bypassed.
Pressing the SENSOR BYPASS button again
will re-enable the sensor and the sensor
bypass light will go out.
Setting the Transmitter Address at the
Receiver
Each transmitter is produced with a unique
address. A receiver must learn this address
to work with that transmitter. This step is only
necessary if transmitters and receivers are
purchased separately.
Note: Units purchased as a kit will already have
their communication address preset. No addressing
is necessary, however, if the receiver or transmitter is
replaced you need to reset the address.

14
ADJUSTMENTS AND OPERATION
1. Prior to applying power (yellow wires) to the
receiver, press and hold the bypass button on
the receiver.
2. While the bypass button is depressed,
apply power to the receiver. The sensor
status indicator light should light up yellow
indicating that the receiver is ready to learn a
new address.
3. Press and hold the quick response button on
the transmitter.
4. Within 4 seconds, the receiver’s sensor status
indicator light should turn red. The receiver
has now learned the address and it will be
retained even in the event of a power outage.
5. Release the button on the transmitter. The
sensor status indicator light should turn
green.
Battery Life
The Wireless Rain-Clik™transmitter is
designed to operate up to ten years with
it’s sealed, maintenance-free battery. The
transmitter is available as a replacement part.
(WRCLIK-TR) Should you need to change the
transmitter, the receiver will have to learn the
new transmitter address.

15
ADJUSTMENTS AND OPERATION
To check the status of the battery in the
transmitter:
1. Press and hold the quick response spindle at
the top of the sensor.
2. Within a few seconds the LED light on the
bottom of the sensor will briefly flash.
3. Release the spindle and the LED light will
flash again. If the LED flashes, the battery in
the transmitter is good.
If you are experiencing problems with your
Wireless Rain-Clik™sensor, follow these
simple checks rst before assuming the unit is
defective and replacing it.
System will not come on at all:
•Check to make sure that the sensor discs are
dry and the switch “clicks” on and off freely
by pressing the top of the spindle.
•Look for breaks in the wire leading to the
receiver and check all connections.
•Verify outside air temperature
(for Rain/Freeze-Clik installations).
LED Light

16
ADJUSTMENTS AND OPERATION
System will not shut off even after
heavy rainfall:
•Remove the sensor jumper across the two
SEN terminals.
•Check to make sure that rainfall is hitting the
sensor.
•Look for breaks in the wire leading to the
receiver and check all connections.
•Check the battery in the transmitter
(See page 15).
Sensor Bypass LED is ashing red:
•Check that the battery in the transmitter
is good (See page 15).
•Check for obstructions around the transmitter
or receiver antenna.

17
FCC NOTICE
Sensor FCC ID:M3UWRCE
This device complies with FCC rules Part 15. Operation is subject to the following two conditions:
1. This device may not cause harmful interference and
2. This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for class B digital devices, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to
try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna
•Increase the separation between the equipment and the receiver
•Connect the equipment to an outlet on a circuit different from that to which the receiver is connected
•Consult the dealer or an experienced radio/TV technician for help
The user is cautioned that changes and modications made to the equipment without the approval of the manufacturer
could void the user’s authority to operate this equipment.

18
TRADE NAME Wireless Rain/Freeze-Clik
MODEL NUMBER WR-Clik-R
COMPLIANCE TEST REPORT NUMBER B00217D3
COMPLIANCE TEST REPORT DATE Jan. 29, 2010
RESPONSIBLE PARTY Hunter Industries Incorporated
ADDRESS 1940 Diamond St. San Marcos, CA 92078
TELEPHONE [phone]
This equipment has been tested and found to comply with the limits for class B digital devices, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
FCC DECLARATION OF CONFORMITY

19
FCC DECLARATION OF CONFORMITY
If this equipment does cause harmful interference to radio or television reception, please refer to you user’s manual for
instructions on correcting the problem. The undersigned, hereby declare that the equipment specied above conforms
to the above requirements.
Signature:
Place: San Marcos, CA Full Name: Peter Woytowitz
Date: March 18, 2010 Position: Engineering Manager

20
INDUSTRY OF CANADA NOTICE
Sensor - IC:2772A-WRCE
Receiver - IC:2772A-WRCER
Operation is subject to the following two conditions:
1. This device may not cause harmful interference and
2. This device must accept any interference received, including interference that may cause undesired
operation.