elsner elektronik Arexa 230V Window Control Guide

Installation and Adjustment
Item number 10115
Arexa 230V
Window Control
EN

Description ..................................................................................................................3
Scope of supply ..................................................................................................................................... 3
Commissioning procedure..................................................................................................................... 3
Options for connection and control........................................................................................................ 3
Overview of available automatic functions ............................................................................................ 4
Operation .....................................................................................................................5
Key functions and display symbols of the meteorological data display................................................. 5
Display of lightness and wind speed ..................................................................................................... 6
Manual operation ................................................................................................................................... 6
Move window manually ......................................................................................................................... 7
Switch between manual and automatic................................................................................................. 7
Central control ....................................................................................................................................... 8
Settings (default setting, automatic) ...................................................................................................... 8
Installation and Commissioning ................................................................................9
Installation of weather station and connection of drive mechanism ................................................ 9
Position .................................................................................................................................................. 9
View of rear side for the weather station ............................................................................................... 9
Installing the weather station ............................................................................................................... 10
Attaching the mount............................................................................................................................. 12
Preparation of the weather station....................................................................................................... 13
Connection of voltage supply and drive mechanism........................................................................... 14
Mounting of the weather station .......................................................................................................... 15
Details for the installation of the weather station................................................................................. 16
Installation of operating unit ................................................................................................................ 16
View of rear side and drill hole plan for the operating unit .................................................................. 17
Notes on radio installations ................................................................................................................. 18
Commissioning...................................................................................................................................... 18
Sensor testing........................................................................................................................................ 19
Sun sensor testing ............................................................................................................................... 19
Wind sensor testing ............................................................................................................................. 20
Rain sensor testing .............................................................................................................................. 20
Temperature sensor testing................................................................................................................. 20
Basic settings............................................................................................................21
1. Radio connection to the weather station ........................................................................................ 23
Delete all radio connections of the weather station............................................................................. 24
2. Rotational direction of the motor..................................................................................................... 24
3. Operating direction ........................................................................................................................... 25
4. Operating command in case of wind or rain alarm........................................................................ 26
5. Sending of meteorological and automatic data ............................................................................. 27
6. Opening position ............................................................................................................................... 28
6.1. Closed position ............................................................................................................................. 29
6.2. Setting of the desired position ...................................................................................................... 29
7. Saving of basic settings ................................................................................................................... 30
Setting of automatic..................................................................................................31

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Safety instructions for automatic and alarm functions.................................................................... 32
A. Indoor temperature for opening ...................................................................................................... 34
B. Outdoor temperature block.............................................................................................................. 35
C. Wind alarm......................................................................................................................................... 36
Table for wind speeds ......................................................................................................................... 36
D. Rain alarm.......................................................................................................................................... 37
E. Storage of automatic settings.......................................................................................................... 38
Service .......................................................................................................................39
Service and maintenance ..................................................................................................................... 39
Weather station.................................................................................................................................... 39
Operating unit ...................................................................................................................................... 39
Insert batteries (operating unit)............................................................................................................ 39
Error messages ................................................................................................................................... 40
Query service data............................................................................................................................... 42
Factory settings..................................................................................................................................... 42
Abbreviations......................................................................................................................................... 42
Technical data........................................................................................................................................ 42
Operating unit ...................................................................................................................................... 42
Weather station.................................................................................................................................... 43
Connection diagram for weather station.............................................................................................. 44
Connection samples for several drive mechanisms as group............................................................. 45
Connection samples for centralised control with IMSG 230 compact ................................................. 46
Personal setting data of the automatic ............................................................................................... 47
Arexa • from software version operating unit 3.0, Arexa weather station 4.0 • Status: 18.08.2022. Errors
excepted. Subject to technical changes.

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Description
The Arexa window control system has been developed for the automatic control of a
window (or a group of windows) and for comfortable manual operation. The control
system offers a highest degree of flexibility for installation and setting and may
therefore be adjusted individually to different conditions. Please use this instruction
manual in order to adjust the automatic function to your requirements.
Scope of supply
•Weather station
•Operating unit (incl. 2 batteries)
Commissioning procedure
Installation, inspection, commissioning and troubleshooting
of the control system must only be arried out by a competent
electrician.
Proceed as follows when commissioning the Arexa control system:
1. Installation and connection (see chapter „Installation and commissioning")
2. Basic setting (see chapter „Basic settings“)
3. Setting of the automatic (see chapter „Setting of automatic")
Options for connection and control
A drive mechanism for windows may be connected to the Arexa control system. If
several windows shall be controlled together, the connection via a group control relay is
possible.
The connected drive (or drive group) may be operated manually with the operating unit.
A suitable radio remote control (Remo 8) and a radio push-button interface (RF B2-UP)
are available in addition (option).
An operating device and an additional remote control Remo 8 or a pushbutton interface
RF-B2-UP can be operated with the weather station (maximum two radio controlled
participating devices at the weather station).
The following environmental parameters are measured and displayed:
•Outdoor and indoor temperature
•Lightness

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•Wind speed
•Precipitation
Overview of available automatic functions
•Open when a selectable indoor temperature is reached
•Close and keep closed below a selectable outdoor temperature (outdoor
temperature block)
•Open until a programmable position is reached
•Close when a selectable wind speed is reached (wind alarm, function may be
deactivated)
•Close in case of rain (rain alarm, function may be deactivated)
The window is closed in automatic mode as soon as the value of a set indoor
temperature falls below or in case of rain/wind alarm.
The wind and rain protection functions are also active in manual mode if they have
been set in automatic.

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Operation
Key functions and display symbols of the meteorological data display
Automatic
Manual
Battery
Rain alarm
Wind alarm
Manual/
Automatic
Up Stop Down Setting
Indoor Temperature
Outdoor Temperature
The basic position of the operating unit of the control system displays the current
outdoor temperature (upper line) and the indoor temperature (lower line) as well as the
function mode (automatic or manual), the battery load and the current alarm messages
for rain or wind. The meteorological data are updated once per minute (and in case of a
keystroke).
Outdoor temperature
Indoor temperature
Battery symbol (indicates the charge status of the battery) - full
- half full
- empty
Automatic mode activated

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Manual mode activated. The connected drive mechanism was operated
manually (with arrow keys) or key was pressed. Thus, the automatic
functions are deactivated, there is no control in terms of temperature. The
safety functions rain alarm and wind alarm are still activated. The control
is in manual mode until you change to automatic mode with key.
Rain alarm. The window is closed, manual operation is blocked. The rain
protection function may be turned on and off in the automatic settings.
Wind alarm. The window is closed, manual operation is blocked. The wind
protection function may be set up or turned off in the automatic settings.
Display of lightness and wind speed
Press the key during temperature display once for a short moment, and current
lightness (in kilolux, kLux) and wind speed (in meters per second, m/sec) are displayed.
The values are updated every 4 seconds.
Note: During the first approx. 90 seconds after the return of voltage at the weather
station, the wind value is not displayed correctly (e.g. after a power fail or in case of a
first start). Therefore, manual operation is blocked in this period of time in case of
activated wind alarm.
If you press the key again for a short moment, you get back to the temperature
display (or to the central command display, see next chapter). After approx. 60
seconds, the display switches automatically to the temperature display.
Manual operation
Manual control as well as the presetting of the automatic functions and the basic setting
of the connected shading is accomplished with the keys of the operating unit.

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Move window manually
Up Stop Down
The connected window may be manually operated with the keys , and . The
arrow keys are provided with a time automatic. By short pressing (less than 1 second),
the window may be exactly positioned. If the key is pressed more than 1 second, the
drive mechanism moves automatically to the final position. If you press , the drive
mechanism stops.
In case of rain or wind alarm, the manual operation is blocked.
Switch between manual and automatic
Manual/automatic
Key switches between automatic mode (display ) and manual mode (display ).
After the manual operation with the keys , or , the control system is in manual
mode. The automatic functions then are deactivated, there is no control in terms of
temperature. With key , the control is reset to automatic (display ).
If the next automatic command is an opening command, then the control closes the
window at first (4-minute reference movement). After that the opening position is
initiated.

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Central control
If the sending of meteorological data and automatic commands has been activated
(see chapter 5 of the basic settings), you additionally obtain the following display after
the manual mode:
In order to get to the display, press key twice shortly in automatic mode ( ) and
once shortly in manual mode ( ).
As long as the display shows , manual operating commands of this operating unit
are submitted to all drive mechanisms in system XS. During this display, use the keys
, and in order to centrally operate all drive mechanisms.
Settings (default setting, automatic)
With the SET key and by pressing shortly, you access the display of lightness and wind
speed.
By pressing long, you access the setting menu of the automatic and the basic setting.
For this purpose, please read chapters “Setting of automatic” or „Basic settings“.

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Installation and Commissioning
DANGER!
Risk to life from live voltage (mains voltage)!
There are unprotected live components inside the device.
•Inspect the device for damage before installation. Only put undamaged devices into
operation.
•Comply with the locally applicable directives, regulations and provisions for
electrical installation.
•Immediately take the device or system out of service and secure it against
unintentional switch-on if risk-free operation is no longer guaranteed.
Use the device exclusively for building automation and observe the operating
instructions. Improper use, modifications to the device or failure to observe the
operating instructions will invalidate any warranty or guarantee claims.
Operate the device only as a fixed-site installation, i.e. only in assembled condition and
after conclusion of all installation and operational start-up tasks, and only in the
surroundings designated for it.
Elsner Elektronik is not liable for any changes in norms and standards which may occur
after publication of these operating instructions.
Installation of weather station and
connection of drive mechanism
Position
Select an assembly site at the building where wind, rain and sun may be collected by
the sensors unobstructedly. Do not assemble any construction components above the
weather station from where water may drop on to the rain sensor after it has stopped
raining or snowing.
The weather station may not be shaded by the building or for example by trees. At least
60 cm of clearance must be left all round the weather station. This facilitates correct
wind speed measurement without eddies. The distance concurrently prevents spray
(raindrops hitting the device) or snow (snow penetration) from impairing the
measurement. It also does not allow birds to bite it. Please ensure that an extended
awning does not cast shade on the unit, and that this is not protected from the wind.
Temperature measurements can also be affected by external influences such as by
warming or cooling of the building structure on which the sensor is mounted, (sunlight,
heating or cold water pipes).
View of rear side for the weather station
All values are in mm, deviations due to technical reasons are possible.

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Installing the weather station
There must be at least 60 cm of space below, to
the sides and in front of the weather station left
from other elements (structures, construction
parts, etc.).
The weather station must be mounted on a
perpendicular wall (or a pole).
60 cm
Wall or
pole

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The weather station must be mounted in the
horizontal transverse direction (horizontally).

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Attaching the mount
The weather station includes a combined wand/pole mount. On delivery, the mount is
attached to the rear side of the housing with an adhesive strip.
Fasten the mount vertically onto the wall or pole.
When pole mounting: curved side on pole,
collar downward.
When wall mounting: flat side on wall, crescent-
shaped collar upward.
Drill sketch
An additional, optional accessory available
from Elsner Elektronik is an articulated arm for
flexible wall, pole or beam mounting of the
weather station.
Example of the use of a mounting arm: Due to
flexible ball joints, the sensor can be brought into
ideal position.

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Example for the application of the hinge arm
mounting: With the hinge arm mounting, the
weather station projects from beneath the roof.
Sun, wind and precipitation can be measured
unhindered by the sensors.
Example for the application of the hinge arm
mounting: Pole-mounting with mounting brackets.
Preparation of the weather station
The cover of the weather station with rain sensor is engaged at the lower rim to the
right and to the left (see fig.) Remove the cover from the weather station. Be careful not
to break away the cable connection between the circuit board in the bottom part and
the rain sensor in the cover.

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1 Cable connection to the rain sensor in the housing cover
2 Connections for the drive mechanism (tension clamp, PE/N/up/down), suitable
for solid conductors up to 1.5 mm² or conductors with fine wires
3 Opening for the cable for the drive mechanism
4 Connections for voltage supply (230 V AC, tension clamp, L1/N/PE), suitable for
massive conductors of up to 1.5 mm² or conductors with fine wires.
5 Opening for the cable for voltage supply
6 Microfuse 6.3 A
7 Programming LED. In normal operation, this LED indicates the receipt of a valid
data package by a short flashing
8 Programming key for the teaching in of the radio connection to the operating unit
Connection of voltage supply and drive mechanism
The drive mechanism of the window is connected to the weather station. Several drive
mechanisms may be connected in parallel. In case of the parallel connection of motors,
please observe whether a group control relay is specified by the motor manufacturer.
Group control relays may be provided by Elsner Elektronik or the motor manufacturer.
ATTENTION!
If motors are connected in parallel which are not suited for this purpose, both
motor and control system are damaged.
Motors with a rated input of more than 1000 Watt must be operated with a relay or
contactor with own feeder.

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We offer appropriate power supply units for DC drive mechanisms. In case of need,
please indicate the type of motor, manufacturer and – if available – technical data.
Pass the cable for voltage supply and drive mechanism through the rubber sealing at
the bottom side of the weather station and connect voltage (L1/N/PE) and drive
mechanism (PE/N/up/down) to the provided clamps.
Note: The programme button for the wireless connection is on the weather station
board. To teach the wireless connection to the control unit, please see Chapter
"Commissioning" and "1st Wireless Connection to the Weather Station" in the basic
settings.
Close the housing by putting the cover over the bottom part. The cover must engage at
the right and at the left with a clearly noticeable “click”.
Check whether cover and bottom are correctly
engaged! The figure illustrates the closed
weather station from below.
Mounting of the weather station
Push the housing into the mounted holder from
above. The journals of the holder must engage
with the rails of the housing.
If you want to remove the weather station, you must pull it out of the holder in upwards
direction against the resistance of the engagement.

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After installation, remove the "Distance" notice
sticker on the top of the cover.
Details for the installation of the weather station
Do not open the weather station if water (rain) might ingress: Even some drops might
damage the electronic system.
Observe the correct installation. Wrong installation might destroy the weather station
and the control electronics.
Please take care not to damage the temperature sensor (small circuit board at the
bottom part of the housing.) when mounting the weather station. Please also take care
not to break away or bend the cable connection between the circuit board and the rain
sensor when connecting the weather station.
Installation of operating unit
The operating unit is battery-powered and communicates with the weather station per
radio.
When you select the assembly site, please avoid direct sun because this would distort
the measurements of the indoor temperature. The appropriate sensor is integrated in
the lower part of the operating unit. For the same reason, the operating unit should not
be installed above the heater. Please make also sure that there is no direct air supply
coming from windows or doors which would distort measured values.
The operating unit may be installed and operated in dry
interior rooms only.

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View of rear side and drill hole plan for the operating unit
All values are in mm, deviations due to technical reasons are possible.

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Notes on radio installations
When planning facilities with devices that communicate via radio, adequate radio
reception must be guaranteed. The range of wireless control will be limited by legal
regulation and structural circumstances. Avoid sources of interference and obstacles
between receiver and transmitter, that could disturb the wireless communication. Those
would be for example:
•Walls and ceilings (especially concrete).
•Metal surfaces next to the wireless participants (e. g. aluminium construction of a
conservatory).
•Other wireless devices and powerful local transmitters (e.g. wireless
headphones), which transmit on the same frequency (868,2 MHz). Please
maintain a minimum distance of 30 cm between wireless transmitters for that
reason.
Commissioning
ATTENTION!
If a device is brought from a cold to a warm area, condensation
can form. Before starting the device up, please ensure there is
no moisture inside it (if necessary leave to dry).
After the system has been wired and the connections have been checked, please
proceed as follows:
•Switch on the power supply voltage of the weather station.
•Insert batteries in the operating unit as described in chapter “Insert batteries”.
•The display of the operating unit now indicates that the radio connection between
weather station and operating unit is not taught in.

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•Press key for 3 seconds until the following display appears:
•Press again for 3 seconds until the display for the teaching in of the radio
connection appears.
Now you are in basic settings. Proceed as described in the basic settings chapter
„1. Radio connection to weather station“ (p. 16).
•Then check the function of the sensors (see next chapter).
Sensor testing
In case of malfunctions of the sensors, the display shows error messages instead of
values. Please observe the chapter „Error messages“ on this.
Sun sensor testing
By the short pressing of the key on the operating unit you get to the lightness
display (see chapter "Display of lightness and wind speed"). The upper value indicates
the intensity of lightness in kilolux (kLux).
The sun sensor is located beneath the frosted glass cover of the weather station. If
lightness is not sufficient, you must illuminate the weather station from above with a
powerful torch until a value is indicated.