Hunter MINI-CLIK RAIN SENSOR Installation Card

MINI-CLIK RAIN SENSOR
TM
INSTALLATION CARD
Introduction
In most installations, the Mini-Clik sensor acts as a switch that breaks
the circuit to an irrigation system's solenoid valves in response to rain.
This allows the timer to advance as scheduled, but keeps the valves from
opening the water flow. Once the Mini-Clik has dried sufficiently, the switch
closes again to allow normal operation.
The Mini-Clik has 8 m of cable attached to it. The cable terminates with
blue leads. 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 1). Remove the jumper from the two SEN terminals.
24VAC REM SEN C
X2 or X-CORE
TM TM
PRO-HC
S1 S1 S2 S2 C C
GND AC1 AC2 REM C P/MV
I-CORE
TM
Figure 1
Note: For Hydrawise controllers, you must complete the installation by
®
configuring the sensor in your Hydrawise account.
For the conduit model, Mini-Clik-C: This rain sensor unit is the same as the
standard model, except there is no aluminium mounting bracket and a 1/ 2"
threaded cap that allows for electrical conduit to totally enclose the wires
has been added. Unless local code states otherwise, plumbing-grade PVC
pipe can be used, as well as electrical-grade conduit.
Mounting
Standard Model
Using the screws provided, mount the Mini-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 2),
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.
For model Mini-Clik-C: The conduit acts as the
mounting support for the unit. Therefore, place and
mount the conduit to allow for the desired sensor
location as described in the main instructions for
the standard model. Be sure to support the conduit
sufficiently along its various lengths.
AC2
AC1
GND
SEN
SEN
PRO-C or HPC HC
TM
SEN SEN 1
SEN SEN 2
TEST SEN C
REM REM
24VAC 24VAC
24VAC 24VAC
GND GND
ICC2 HCC
+ SEN1
+ + + +
24
+ SEN2
SEN4 SEN3 SEN2 SEN1 VAC
+ SEN3
P/MV3
– – – –
SEN4 SEN3 SEN2 SEN1 COM
24VAC
ACC ACC2
Figure 2
Helpful Hints for Mounting
A. When looking for a suitable location (such as on the side of a building
or post), the closer the Mini-Clik is to the controller, the shorter the
wire run will be. This will minimise the chance for wire breaks.
B. The ideal location for mounting is not always the most practical
location. In the case where a compromise must exist (such as a low
location on a side wall rather than a preferred higher location), note
that the Mini-Clik will still work because it will always receive some
rainfall — it just will not be as accurate in its gauging as it could be.
C. As described in the "Operation" section of this manual, "reset
rate" refers to the amount of time it takes the Mini-Clik to dry
24V
out sufficiently for the sprinkler system to be allowed to come
24V
back on. The mounting location will affect this rate and must
SENSOR 1
be taken into consideration should extreme conditions exist.
SENSOR 2
For example, mounting the Mini-Clik on a very sunny, southern end
COMMON
of a building may cause the Mini-Clik to dry out sooner than desired.
Similarly, mounting on the northern end of a building with constant
shade may keep the Mini-Clik from drying soon enough.
Once the Mini-Clik is mounted, run the wire to the controller. Fasten it
every few feet with wire clips or staples for best results. If an extension
to the wire provided is needed, use the following table to determine the
minimum wire gauge needed:
SEN1 –
If the extension needed is:
SEN2 –
SEN3 –
COM
COM
24-Volt Solenoid Valves Only
(No Booster Pump) — Figure 3
With the two wires from the
Mini-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 Mini-Clik to the
"common" terminal (usually
marked "C") on the controller.
Attach the other wire of the
Mini-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 Mini-Clik can be wired anywhere along the common
wire line (an example would be at the valve box location).
15–30 m
1 mm
use:
Mini-Clik
Mini-Clik
Common Wire to
Common Wire to
All Valves
All Valves
Figure 3
Figure 3
>30 m
1.3 mm
Controller
Controller
C 1 2 3 4
Solenoid Solenoid
Valves
Valves