Rain Bird WR2RFC-48 User manual

WR2-48 Wireless Sensor
User Manual
Manual del usuario

Contents
EN
ES
page 11
Safety Information ................................ 1
Introduction........................................... 1
WR2 Components ................................................................2
WR2 Benefits...........................................................................2
Mounting the Controller Interface......... 2
Wiring the Controller Interface to the
Irrigation Controller .............................. 3
Initial Power Up ..................................... 4
Controller Interface Display Icons................................4
Sensor Status ..................................................................... 4
Environmental Conditions........................................... 4
Irrigation Modes ...............................................................5
Synchronize the Sensor and Controller
Interface ................................................ 5
Programming the Set Points.................. 6
Rainfall Set Point...................................................................6
Temperature Set Point
(Rain/Freeze Sensor only).................................................6
Programming Irrigation Modes............. 6
Saving, Resetting and Restoring
Settings.................................................. 7
Save Contractor Default Settings .................................7
Reset Contractor Default Settings ...............................7
Restore Contractor Default Settings........................... 7
Restore Standard Setting..................................................7
Select the Sensor Location..................... 7
Sensor Mounting Instructions ............... 8
Using Multiple Controller
Interface Units ....................................... 8
WR2 Wireless Sensor Alerts &
Troubleshooting .................................... 9

WR2-48 Wireless Sensor 1
Safety Information
Symbols used in this manual:
CAUTION: Symbol alerts the user
to the presence of un-insulated
“dangerous voltage” within the
product’s enclosure that may be of
sucient magnitude to constitute a
risk of electric shock.
 NOTE: Symbol alerts the user to the
presence of important operating or
maintenance (servicing) instructions.
Interference With Other Electronic
Devices
All radio transmitters broadcast energy
through the air. This energy may interfere
with other electronic devices in close
proximity to the WR2 Wireless Sensor. To
lower the risk of electronic interference:
 Do not place sensitive electronics
(computers, telephones, radios, etc.) in
close proximity to the Controller Interface
or Sensor.
 Use clip-on ferrite sleeves on the
connection or power cables of aected
electronic device(s).
 NOTE: The irrigation controller / timer
should be isolated via a circuit breaker
or cuto switch.
 NOTE: Batteries removed from the
sensor should be disposed of in
accordance with local regulations.
 NOTE: Changes or modications
not expressly approved by the party
responsible for compliance could void
the user’s authority to operate the
equipment.
Introduction
Congratulations on your purchase of
the WR2 Wireless Sensor.
Now in accordance with California
Executive Order B-29-15, prohibiting
the application of potable water to
outdoor landscapes during and within
48 hours after measurable (1/4” or
greater) rainfall.
The Rain Bird Wireless Rain Sensor is
designed for residential and commercial
irrigation systems. It saves water
and extends irrigation system life by
automatically sensing precipitation and
interrupting irrigation during rain and low
temperature events.
Programming logic can suspend irrigation
using the “Quick Shut O ” feature or when
the amount of rainfall exceeds the rainfall
set point. Likewise, the Wireless Rain /
Freeze Sensor will suspend irrigation when
the sensor temperature reading is below the
temperature set point.
At Rain Bird, we are focused on developing
products and technologies that use water in
the most ecient manner possible. The rain
and rain / freeze sensor illustrate Rain Bird’s
commitment to this Intelligent Use of Water.
The product is part of Rain Bird’s family of
water conservation solutions that include
the SMRT-Y Soil Moisture Sensor, U-Series,
HE-VAN, and Rotary Nozzles, and the ESP-
SMTe controller.
Please read through these instructions in
their entirety or refer to the programming
demo (www.rainbird. com/WR2) before
installing your WR2 Wireless Sensor. Also,
reference your irrigation system controller /
timer installation instructions for the proper
connection of rain sensors.

1
2
4
3
57
8
6
WR2-48 Wireless Sensor
2
WR2 Components
A
Controller Interface
B
Sensor
C
Battery Cassette and Lithium CR2032
Battery
D
Sensor Mounting Bracket Assembly
E
Mounting Hardware
F
User’s Manual
G
Quick Reference Guide
H
WR2-48 Quick Reference Label
 NOTE: Tools needed for installation:
drill, drill bit, and Phillip’s head
screwdriver.
WR2 Benefits
 All settings are programmed through the
Controller Interface device
 Large easy to understand icons communicate
irrigation mode and sensor status
 Sensor LED indicator enables one-person
setup, reducing installation time
 Battery is easy to install / replace
 Aesthetic appearance - no external
antennas
 Easy to install, self-levelling sensor bracket
mounts to at surfaces or rain gutters
 “Quick Shut O ” interrupts active
irrigation cycle during a rain event
 Enhanced antenna array provides
superior signal reliability that overcomes
most line of sight obstructions
 Automatically prevents irrigation for
48-hours following a rainfall event (WR2-
48 model only).
Mounting the
Controller Interface
Choose a location near the irrigation
controller / timer.
CAUTION: The cable harness is 30
inches (76.2 cm) long, so before
mounting the device, ensure the wires
easily reach the irrigation controller’s
connection terminals.
 Select a at surface
adjacent to the irrigation
controller.
 For best performance,
the Controller Interface
should be installed at
least ve feet (1.5m)
above the ground.
 It is recommended that
the Controller Interface
be installed away from
sources of electrical interference (such
as transformers, generators, pumps, fans,
electrical meter boxes) and metal objects
to maximize communication range.
 Use the mounting hardware supplied.
Attach the Controller Interface to the wall.

RED or
BLACK WHITE GREEN
TO VALVES
COMMON
FROM VALVES
RED
BLACK
WHITE
GREEN
TO VALVES
RED or
BLACK
GREEN or
WHITE
TO VALVES
WR2-48 Wireless Sensor 3
Wiring the Controller
Interface to the
Irrigation Controller
 NOTE: This unit is designed to be
installed in conjunction with 24VAC
circuits only. Do not use with 110 or
220/230 VAC circuits.
 NOTE: The Controller Interface has 4
wires that must be connected to the
irrigation controller / timer. If your
timer does not have an internal 24VAC
power source, you will need to splice
the red and black Controller Interface
wires to a 24VAC transformer.
Controllers with sensor inputs (with
or without pump start / master
valve)
1. Disconnect power to the irrigation
controller.
2. Connect the red and black wires to
the 24 volt AC power on the irrigation
controller.
3. If present, remove “jumper wire” between
sensor terminals.
4. Connect the white and green wires to
the sensor inputs.
5. Reconnect power to the irrigation
controller.
 NOTE: Ensure the sensor switch on
the irrigation controller panel is in the
active position.
Controllers with no sensor inputs (with
or without pump start / master valve)
1. Disconnect power to the irrigation
controller.
2. Connect the red and black wires to the
24volt AC power on the irrigation controller.
3. Disconnect the wires from the Common
terminal on the controller.
4. Connect the green wire to these
disconnected wires using a wire connector.
5. Connect the white wire to the Common
terminal on the controller.
6. Reconnect power to the irrigation
controller.
 NOTE: Ensure the sensor switch on
the irrigation controller panel is in the
active position.
ESP-MC and ESP-LXME Modular
Controllers
1. Disconnect power to the irrigation
controller.
2. Connect the red wire to the 24 volt AC
terminal on the irrigation controller.
3. Connect the green and white wires to
the sensor terminals.
4. Connect the black wire to the Common
terminal on the controller.
5. Reconnect power to the irrigation
controller.
 NOTE: Ensure the sensor switch on
the irrigation controller panel is in the
active position.

WR2-48 Wireless Sensor
4
Initial Power Up
After power is applied, the Controller
Interface displays the following icons.
Controller Interface Display
Icons
Sensor Status
Battery Life Remaining:
Four (4) dark bars indicate
full battery strength.
Replace battery when
only one (1) bar remains.
Signal Strength:
Illustrates strength of
the radio signal between
Sensor and Controller
Interface. Four (4) dark
bars indicate maximum
signal strength.
Sensor Indicator /
Pairing Status:
The Sensor and
Controller Interface
synchronize
communication
addresses. Battery Life
and Signal Strength will
ash while synchronizing,
and then stop when
paired.
Environmental Conditions
Rainfall Set Point:
Select from six (6) set points
ranging from 1/8”(3mm) to
1/2” (13mm). A set point closer
to the top of the icon allows
for more precipitation to occur
before irrigation is suspended.
Rainfall Indicator:
Illustrates approximate
amount of rainfall relative to
Rainfall Set Point.
Rainfall Trip Indicator:
Displays when the Sensor has
suspended irrigation due to
“Quick Shut O “ or satisfying
rainfall set point.
Temperature Set Point
(Rain/Freeze Sensor only):
Select from three (3) set
points: 33°F (0.5°C), 37°F (3°C),
or 41°F (5°C). Selecting a lower
set point allows irrigation at
lower temperatures.
Temperature Indicator
(Rain/Freeze Sensor only):
Illustrates approximate
temperature relative to
Temperature Set Point.
Temperature Trip Indicator
(Rain/Freeze Sensor only):
Only displays when the Sensor
has suspended irrigation due
to temperature reading that
is below the temperature set
point.

WR2-48 Wireless Sensor 5
Irrigation Modes
Programmed Irrigation
WR2 Wireless Sensor is actively managing
the irrigation
controller / timer.
Once a set point
is satised by
environmental conditions, or the“Quick
Shut O ” feature is activated, irrigation is
suspended. An X and corresponding trip
indicator (rainfall, temperature, or both)
will automatically display when irrigation is
suspended.
48-Hour Irrigation Hold Active
WR2-48 Model Only
Irrigation will be prevented
for 48 hours following
measured rainfall. The
display shall ash an X to
indicate the irrigation hold.
Override Sensor for 72 Hours
NOTE: Selecting Override Sensor cancels
any 48-hour hold
on irrigation.
User has elected
to permit
irrigation in accordance with the timer
schedule regardless of environmental
conditions (i.e. rainfall or low temperature
is detected by the sensor). System will
automatically resume programmed
irrigation mode after 72 hours (Note: X
and trip indicator will be displayed when
returning to programmed irrigation mode if
set points are satised).
Synchronize
the Sensor and
Controller Interface
After the Controller Interface is wired
to the irrigation timer, the Sensor and
Controller Interface need to establish a
radio communication link. When the link
is established, the Sensor and Controller
Interface are considered “paired.”
1. On the Controller
Interface, push
and hold both
arrow buttons
simultaneously to
begin the installation sequence.
2. After the “Sensor Indicator / Pairing
Status”icon ashes, remove the label
from the bottom of the sensor.
3. The ashing“Sensor Indicator / Pairing
Status”icon prompts you to insert the
battery cassette with battery into the
Sensor lower casing as shown. Align the
arrow on the battery cassette with the
unlocked indicator on the bottom of the
Sensor.
4. Rotate the battery cassette clockwise
until the arrow points toward the locked
indicator. The light on the bottom of the
Sensor will blink once to indicate that
the sensor is now powered up.

WR2-48 Wireless Sensor
6
5. The Sensor is successfully paired to
the Controller Interface when the
“Sensor Indicator / Pairing Status” icon
stops ashing. Once paired, sensor
signal strength and battery life are
communicated via the Controller Interface
icons. Additionally, a blinking light on
the bottom of the Sensor indicates signal
strength for 20 minutes immediately
following successful pairing. These “self
test” features are an indication that your
WR2 Wireless Sensor is operational.
Programming the
Set Points
The WR2 Wireless Sensor allows the
contractor to establish rainfall and
temperature set points appropriate for
local environmental and soil conditions.
Alternately, the contractor may elect to use
the “Standard Setting”: temperature 37°F
(3°C), rain fall ¼” (6mm) and “programmed
irrigation” mode. The ”Standard Setting”is
programmed at the factory and is active
after successful pairing.
Rainfall Set Point
1. Push left or right
arrow on keypad to
navigate to the Rainfall
Indicator icon.
2. When the Rainfall
Indicator icon ashes,
press the +/ –button
on the keypad to set
programming details.
Each press of the button
adjusts the set point.
Select from six (6) set
points ranging from 1/8”
(3mm) to 1/2”(13mm).
3. Press the left or right
arrow to accept
programming details
and to navigate to
next icon.
Temperature Set Point
(Rain/Freeze Sensor only)
1. Push left or right arrow
on keypad to navigate
to the Temperature
Indicator icon.
2. When the
Temperature Indicator
icon ashes, press
the +/ –button on
the keypad to set
programming details.
Select one of three
temperature settings:
33°F (0.5°C), 37°F (3°C),
or 41°F (5°C).
3. Press the left or right
arrow to accept
programming details
and to navigate to
next icon.
Programming
Irrigation Modes
1. Push left or right arrow
on keypad to navigate
to the Irrigation Mode
icon.
2. When the Irrigation
Mode icon ashes,
press the +/ –
button on the keypad
to set programming
details. Manually set
one of three irrigation
modes. See Irrigation
Modes.
3. Press the left or right
arrow to accept
programming details
and to navigate to
next icon.

WR2-48 Wireless Sensor 7
Saving, Resetting
and Restoring
Settings
Save Contractor Default
Settings
Once the Controller
Interface is completely
programmed, press
+and right arrow
buttons simultaneously
for ve (5) seconds to
save contractor default
setting. All programmed
icons will ash in unison
one time to indicate
program is saved.
Reset Contractor Default
Settings
The Contractor default setting stores
programming details related to rainfall and
temperature set points.
Reset and save programming details in
accordance with Section and .
Restore Contractor Default
Settings
If this programming is inadvertently
changed, it is simple to restore.
Press +and –buttons
simultaneously for ve
(5) seconds, or until
the screen goes blank.
When icons reappear,
contractor default
settings are restored.
Restore Standard Setting
Press the –and
left arrow buttons
simultaneously
for ve (5)
seconds, or until
the screen goes
blank, to cancel
Select the Sensor
Location
The communication range for the
WR2 Wireless Sensor is 700 feet
(213.4 meters).
 A blinking light on the bottom of the
Sensor indicates signal strength for 20
minutes immediately following successful
pairing. The Sensor updates its signal
strength every 3 seconds (i.e. 1 blink =
reliable signal strength, series of 4 blinks
= strongest signal strength). If the signal
strength is not optimum in one location,
try another location. Even as little as a few
feet dierence in placement can improve
signal strength.
 Select a mounting location where the
rain sensor will receive direct rainfall.
Make sure the sensor extends beyond
the roof line, tree limbs and any other
obstructions. Install the Rain Sensor in
an area that receives as much rain and
sunlight as the landscape. Be sure to
mount the sensor above spray from the
sprinklers.
Signal Sensor LED
GOOD
Install 1-4 Blinks
POOR
DO NOT install Does not blink
the Contractor default setting and restore
the ”Standard Setting”: temperature 37°F
(3°C), rain fall ¼” (6mm) and “programmed
irrigation” mode. When icons reappear,
”Standard Setting” is active.

Remove Cap
1
Insert
2
Replace Cap
3
Attachment
Bracket
Extension
Arm
2
mounting
bracket gutter
1
WR2-48 Wireless Sensor
8
Sensor Mounting
Instructions
This section provides detailed ins-
tructions on how to install the sensor.
Sensor Bracket Assembly
Components
Attaching the bracket to a
gutter
Slide the top portion of the attachment
bracket over the lip of the gutter. Rotate the
bracket downward over the gutter as shown
in the following installation steps.
Attaching the bracket to a
flat surface
Use the supplied hardware to mount the
attachment
bracket to a
at surface
such as a wall
or fence.
Installing the Sensor in the
attachment bracket
To insert the Sensor in the attachment
bracket you must rst remove the Sensor
cap. Hold the sensor body in one hand;
gently twist the cap with your other hand.
Slide the neck of the sensor up through the
opening of the extension arm. Reinstall the
cap. A clicking sound indicates that the two
latches on the sensor body have fully re-
engaged the cap.
Using Multiple
Controller
Interface Units
Up to four (4) Controller Interface units can
be paired to one (1) sensor.
1. Ensure all Controller Interface Units are
powered up.
2. Synchronize the Sensor to the rst
Controller Interface in accordance with
Section .
3. As you approach the second Controller
Interface, remove the battery cassette
from the Sensor. Push both arrow
buttons simultaneously on the second
Controller Interface. Wait 5 seconds.

WR2-48 Wireless Sensor 9
Reinsert the battery into the Sensor. The
Controller Interface “Sensor Indicator /
Pairing Status”icon stops ashing when
the device is synchronized to the Sensor.
Continue with programming the second
Controller Interface.
4. Repeat step 3 to pair additional Controller
Interface units to the Sensor.
5. When multiple Controller Interface units
are paired to one sensor, rely on the LCD
screen signal strength indications only.
WR2 Wireless Sensor Alerts & Troubleshooting
The unique two-way communication technology of the Rain Bird Wireless Rain and Rain/
Freeze Sensor provides continuous monitoring of the Sensor status and communicates the
following Controller Interface alerts.
Alert LCD Display Description Resolution
Initial
Power Up
Failure
LCD screen is blank Initial Power up
screen / icons do not
appear indicating the
Controller Interface is
not receiving power.
Conrm correct wiring of the Controller
Interface to the Irrigation Controller.
No Sensor
Paired
“Sensor Indicator /
Pairing Status” icon
continues to ash
During Installation:
The sensor does
not pair and is not
communicating
with the Controller
Interface.
1. Pair the sensor (see Section ).
2. If step 1 does not correct the
situation, then check/replace the
battery.
Sensor
Pairing
Broken
“Sensor Indicator
/ Pairing Status”
icon does not
communicate
battery life or signal
strength
After the WR2 Wireless
Sensor is in operation:
A sensor that does not
communicate battery
life / signal strength to
the Controller Interface
is no longer paired.
1. First check/replace the battery.
If a new battery is installed, the sensor
automatically reacquires the Controller
Interface.
2. If you replace a sensor that is paired
to the Controller Interface, you will
have to pair the new sensor to the
Controller Interface.
Low Battery “Battery Life
Remaining” icon
has only one (1) bar
illuminated
Initial Power Up Failure Replace the battery.
1. Remove battery cassette from sensor.
2. Remove battery from cassette.
3. Insert new battery using label on
battery cassette to properly orient
battery.
4. Insert battery cassette into sensor.
5. Sensor LED blinks once to indicate
the sensor is powered up. Under
normal operation, battery should last
for four (4) or more years.

WARNING
Chemical Burn Hazard. Keep Batteries away from children. This product contains a lithium button/coin cell battery. If
a new or used lithium button/coin battery is swallowed or enters the body, it can cause severe internal burns and can
lead to death in as little as 2 hours. Always completely secure the battery compartment. If the battery compartment
does not close securely, stop using the product, remove the battery, and keep it away from children. If you think bat-
teries might have been swallowed or placed inside any part of the body, seek immediate medical attention. The cells
shall be disposed of properly. Even used cells may cause injury.

WR2-48 Wireless Sensor
10
Declaration of Conformity
I the undersigned, hereby declare that the equipment specied above,
conforms to the above Directive(s) and Standard(s).
Application of
Council Directives:
Standards To Which
Conformity Is Declared:
Manufacturer’s Name:
Manufacturer’s Address:
Equipment Description:
Equipment Class:
Model Numbers:
2004/10S/EC
1999/5/EC
EN55014-1:2006
EN55022:2006
EN55014-2: 1997 +Al:2001
EN61000-4-2
EN61000-4-3
EN61000-4-8
EN 300 220-2 V2.1.2
Rain Bird Corp.
9491 Ridgehaven Court
San Diego, CA 92123
619-674-4068
Irrigation Controller
Class B
WRS
Place: San Diego, Ca.
Signature:
Full Name: Ryan Walker
Position: Controls Manuf. Division Director