Hunter WIRED RAIN-CLIK RAIN-CLIK Parts list manual

WIRED RAIN-CLIKTM & RAIN/FREEZE-CLIKTM SENSORS
INSTALLATION CARD
Introduction
Your new wired Rain-Clik sensor combines optimal performance, water
savings, and installation convenience in an economical rain sensor package.
The wired Rain-Clik acts as a switch to break the circuit to the solenoid valves
of the irrigation system when it has rained. This allows the timer to advance as
scheduled, but keeps the valves from opening the water flow. Once the Rain-
Clik has dried sufficiently, the switch closes again to allow for normal operation.
The Rain-Clik is supplied with 8 m of wiring for installation on your controller.
Unlike other rain sensors, you do not need to determine the setting for
rainfall shuto. The wired Rain-Clik is self-adjusting. With Rain-Clik, your
sprinkler system will shut down within the first few minutes of any rainfall. The
total amount of rain received is registered inside the unit and determines how
long your system will stay o. The wired Rain/Freeze-Clik includes a freeze
sensor that is designed to keep the system from operating at or below 37°F
(3°C). At temperatures above 3° C, it will close the circuit for normal sprinkler
operation. The freeze sensor prevents ice on landscapes, roadways, and
walkways.
Mounting
Standard Model
Using the screws provided within the package, mount the Rain-Clik on any
surface where it will be exposed to unobstructed rainfall, but not in the
path of sprinkler spray. The switch housing portion must be upright
(Figure 1), but the swivel-bracket can be moved for mounting on an angled
surface. Loosen the locknut and screw before swiveling the bracket, and
then re-tighten.
Gutter Mounting
(SGM Sold Separately)
The gutter mount can be purchased as
an optional accessory for your Rain-Clik
(order P/N SGM). The SGM allows the
Rain-Clik to be mounted directly to the
side of a gutter. To install your Rain-Clik
on a gutter, remove the screw, nut, and
standard metal extension arm supplied
with the Rain-Clik, and reinstall the screw
and gutter mount. Position the gutter
mount on the edge of the gutter and twist the thumbscrew to secure
it in place (Figure 2).
Helpful Hints for Mounting
A. When looking for a suitable location such as the side of a building or
post, the closer the Rain-Clik is to the controller, the shorter the wire run
will be. This will also minimize the chance for wire breaks.
B. Correct placement of the Rain/Freeze-Clik model is important for
accurate temperature sensing. The best location would be out of direct
sunlight (Figure 3).
C. As described in the “Operation”
section of this manual, “reset rate”
refers to the amount of time it takes
the Rain-Clik to dry out sufficiently
for the sprinkler system to be allowed
to come back on. The mounting
location will aect this rate and should
be taken into consideration should
extreme conditions exist. For example,
mounting the Rain-Clik on a very sunny, southern end of a building
may cause the Rain-Clik to dry out sooner than desired. Similarly,
mounting on the northern end of a building with constant shade may
keep the Rain-Clik from drying soon enough.
Once the Rain-Clik is mounted, run the wire to the controller, and fasten
it every few feet with wire clips or staples for best results. Be careful not
to cut through the wire insulation with fastening hardware or cha the
insulation when routing wire through or around metal materials (e.g.,
gutter, siding, etc.). If an extension to the wire provided is needed, use
the following table to determine the minimum wire gauge needed:
Wiring to Your Irrigation System
IMPORTANT: The Rain-Clik has 8 m of cable attached to it. These leads
will be wired to the SEN terminals or SEN and SEN COM terminals of the
controller. The order in which they are wired does not matter.
(Figure 2). Remove the jumper from the two SEN terminals.
Wiring to Hunter Controllers
The Rain-Clik connects directly to the controller. This allows you to
easily override the sensor by using the Sensor switch on the front panel.
1. Remove the jumper from the two “SEN” terminals.
2. Route the wires from the rain sensor up through the same conduit
opening used for valve wiring
3. Connect one wire to the terminal labeled “SEN” and the other wire to
the other “SEN” terminal (Figure 4).
Note: For Hydrawise®controllers, you must complete the installation by
conguring the sensor in your Hydrawise account.
If the extension needed is: 8–15 m 15–30 m 30+ m
use: 0.8 mm 1 mm 1.3 mm
Rain/Freeze-Clik Hunter Controllers
SEN
SEN
C
TEST
P/MV
Figure 2
21C 3 4
Figure 5
Vent Ring
Vents
Rain/Freeze-Clik Hunter Controllers
SEN
SEN
C
TEST
P/MV
Figure 2
21C 3 4
Figure 5
Vent Ring
Vents
Rain/Freeze-Clik Hunter Controllers
SEN
SEN
C
TEST
P/MV
Figure 2
21C 3 4
Figure 5
Vent Ring
Vents
X2TM or X-CORETM PRO-CTM or HPC
HCC
HC
PRO-HC
ACC2
Figure 4
ACC
I-CORETM
24VAC
SEN
REM
C
24 VAC
24 VAC
GND
SEN-1 SEN COM
SEN-2
S1 S1
S2
S2
C
C
GND
AC1
AC2
REM
C
P/MV
SEN
SEN
AC2
AC1
GND
+
–
+
–
+
–
+
–
24
SEN1
SEN1
SEN2
SEN2
SEN3
SEN3
SEN4
SEN4
VAC
COM
TEST
SEN
SEN
REM
24VAC
24VAC
GND
ICC2
24V
24V
SENSOR 1
SENSOR 2
COMMON
SEN C
SEN 2
SEN 1
REM
24VAC
24VAC
GND
24VAC
COM
P/MV3
COM
+ SEN1 SEN1 –
+ SEN2
SEN2 –
+ SEN3
SEN3 –
Standard Mount
Gutter Mount (Optional)
Shade
Rain/Freeze-Clik
Figure 3
Figure 1
Figure 2

LIT-358 E EM 5/20
Operation Check to Verify Correct Wiring
Turn on one zone of the irrigation system
that is visible while you are in reach of the
Rain-Clik. Manually depress the spindle at
the top of the Rain-Clik until you hear the
switch “click” o. The sprinkler zone should
stop instantaneously. If it does not, check
wiring for correctness. It is not necessary
to “wet” test the Rain-Clik, although it will
test the operation suciently, if desired
(Figure 6).
Need help? Visit hunter.direct/rainclikhelp
Wiring to Your Irrigation System (cont.)
Wiring to Other Controllers
The most common situation is shown below.
1. 24-Volt Solenoid Valves Only (Figure 5)
With the two wires from the Rain-Clik at
the controller, locate the “common ground”
wire of the solenoid valves. If it is connected
to the common terminal on the controller,
disconnect it. Attach one wire of the
Rain-Clik to the “common” terminal (usually
marked “C”) on the controller. Attach the
other wire of the Rain-Clik to the common
wire leading to the valves.
Note: The common wire to the valves does not have to be interrupted at
the controller. The Rain-Clik can be wired anywhere along the common
wire line.
Rain/Freeze-Clik Hunter Controllers
SEN
SEN
C
TEST
P/MV
Figure 2
21C 3 4
Figure 5
Vent Ring
Vents
Rain/Freeze-Clik Hunter Controllers
SEN
SEN
C
TEST
P/MV
Figure 2
21C 3 4
Figure 5
Vent Ring
Vents
Rain/Freeze-Clik Hunter Controllers
SEN
SEN
C
TEST
P/MV
Figure 2
21C 3 4
Figure 5
Vent Ring
Vents
Manufactured under U.S. Patent Pending
All Rain-Clik models are listed by Underwriters Laboratories, Inc. (UL). Samples
of these devices have been evaluated by UL and meet the applicable UL standards
for safety.
© 2020 Hunter Industries Inc. Hunter, the Hunter logo, and all other trademarks are property of
Hunter Industries, registered in the U.S. and other countries. | hunterindustries.com
Rain/Freeze-Clik Other Controller
Solenoid
Valves
Common Wire to All Valves
Figure 5
Figure 6
Manually press the spindle
at the top of the Rain-Clik
Figure 7
Adjustments and Operation
The Rain-Clik can keep the irrigation system
from starting or continuing aer rainfall. The
time that it takes the Rain-Clik to reset for
normal sprinkler operation aer the rain has
stopped is determined by weather conditions
(e.g., wind, sunlight, humidity). These
conditions will determine how fast the
hygroscopic discs dry out, and since the turf is
also experiencing the same conditions, their
respective drying rates will roughly parallel
each other. So when the turf needs more
water, the Rain-Clik is already reset to allow
the sprinkler system to run at the next scheduled cycle.
There is an adjustment capability on the Rain-Clik that will slow down
the reset rate. By closing the “vent” (Figure 7) to completely or partially
cover the ventilation slots, the hygroscopic discs will dry out more slowly.
This adjustment can compensate for an “overly sunny” installation
location, or peculiar soil conditions. Experience will best determine the
ideal vent setting.
Rain-Clik utilizes single-disc technology to turn o your sprinkler
system within the first five minutes of rainfall. For light showers and
amounts of rain less than 3 mm, the single disc will shut o the system
for 30 minutes to 4 hours, depending on weather conditions. Adjusting
the vent cap will not have an eect on the dryout time of the single
disc. For heavier rain showers in excess of 3 mm, the disc stack under
the vent cap will hold the system o for an appropriate amount of time.
The disc stack dryout time is what the vent cap adjustment controls.
Bypassing the Sensor
The Hunter X2™, X-Core™, Pro-C™, ICC2, and I-Core™ controllers are
equipped with a built-in bypass that allows you to override an active
sensor. For controllers not equipped with this feature, should you desire
to bypass the operation of the Rain-Clik for any reason (i.e., turn on your
system even though the Rain-Clik has shut “o” due to rainfall), there is
a simple way to do this: add our Bypass Switch Box. This mounts on or
next to the controller, and by simply moving the switch, the Rain-Clik is
bypassed.
Note: Using the “manual” switch on non-Hunter controllers typically will
not bypass the sensor.
Maintenance
There is no required maintenance for the unit. The sensor does not have to
be removed or covered for “winterizing” purposes.
Troubleshooting
Follow these simple checks rst before assuming the unit is bad and replacing
it. If the system will not come on at all:
A. First, check to see that the Rain-Clik discs are dry and the switch “clicks”
on and o freely by pressing the top of the spindle.
B. Next, look for breaks in the wire leading to the Rain-Clik and check all
wire junctions.
C. Verify temperature is above 3°C (for Rain/Freeze-Clik model).
If the System Will Not Shut O Even Aer Heavy Rainfall
D. Check wiring for correctness (see “Operation Check to Verify Correct
Wiring”).
E. Is the rainfall actually hitting the Rain-Clik? Check for obstructions to
rainfall (e.g., overhangs, trees, or walls).
Vent Ring
Vents