Plum eSTER x40 User manual

INSTALLATION AND OPERATING MANUAL
ISSUE: 1.0
WIRELESS ROOM THERMOSTAT
eSTER_x40
FOR HEATING CIRCUIT CONTROLLERS
04-2019
ISM_xSMART*
* The ISM_xSMART radio module is standard equipment for the thermostat.
ONLY COOPERATES WITH THE ecoMAX SERIES OF THE BOILER CONTROLLERS

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CONTENTS
1. RECOMMENDATIONS REGARDING SAFETY ........ 4
2. GENERAL INFORMATION .................................... 4
3. INFORMATION ABOUT DOCUMENTATION......... 4
4. STORAGE OF DOCUMENTATION......................... 4
5. APPLIED SYMBOLS .............................................. 4
6. DECLARATION OF CONFORMITY......................... 4
7. DIRECTIVE WEEE 2012/19/UE............................. 5
8. THE FIRST START OF THE THERMOSTAT ............. 5
9. THERMOSTAT MAIN SCREEN .............................. 5
10. THERMOSTAT SETTINGS ..................................... 6
9.1. EDITION OF THE PRESET TEMPERATURE..................... 6
9.2. EDITION OF THE OPERATION MODES ........................ 6
9.3. EDITION OF THE SCHEDULES ................................... 8
9.4. COPYING OF THE INTERVALS ................................... 8
11. USER MENU ........................................................ 9
11.1 SERVICE MENU .................................................. 10
12. SIGNALING OF THE ALARMS AND PROMPTS .... 10
12.1 ALARMS........................................................... 10
12.2 PROMPTS ......................................................... 10
13. SETTINGS OF THE MAIN CONTROLLER
PARAMETERS ................................................................ 10
14. INSTALLATION OF THE THERMOSTAT............... 11
14.1 INSERTING OR REPLACING THE BATTERIES IN THE
THERMOSTAT ................................................................ 12
15. RADIO MODULE ................................................ 12
15.1 INSTALLATION AND CONNECTION OF THE RADIO MODULE
TO THE MAIN CONTROLLER............................................... 12
MAX.LENGTH 30 M........................................................ 13
15.2 PAIRING THE RADIO MODULE WITH THE THERMOSTAT13
15.3 RESETTING THE MEMORY OF THE RADIO MODULE
PAIRING 14
15.4 COOPERATION OF THE RADIO MODULE WITH SEVERAL
THERMOSTATS............................................................... 14
15.5 CONNECTING THE RADIO MODULE TO SELECTED MAIN
CONTROLLERS ............................................................... 15
16. TECHNICAL DATA .............................................. 17
17. STORAGE AND TRANSPORT CONDITIONS......... 17
18. DESCRIPTION OF POSSIBLE FAULTS .................. 17

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1. Recommendations regarding safety
The following requirements shall be complied
with.
•The device should be used as intended,
keeping it in a dry environment, and
installing it only indoors.
•The thermostat has small parts, so keep
it away from children.
•Before connecting the radio module to
the main controller, absolutely stop the
operation of the main controller by
switching it off and disconnecting it from
the main power supply.
•Non-compliant with the manual or
incorrect connection of the radio module
to the main controller may be a source of
malfunction of the main controller and
the radio module itself.
•The device should only be started up by a
person who is familiar with these
instructions.
•Under no circumstances may the device
construction be modified.
2. General information
Room thermostat eSTER_x40 is designed for
wireless cooperation with external radio
transmission module ISM_xSMART, which is
wired to the main controller. The thermostat
is installed in a selected room, eg a living
room, and is designed to maintain a preset
room temperature by sending a radio signal
to a module connected to the main
controller. The implemented encrypted, two-
way radio communication allows the
transmission of information from the main
controller to the thermostat, including the
fuel level in the fuel tank, alarm statuses of
the regulator and external temperature
values. The thermostat on the backlit LCD
display shows information about the room
temperature value, selected operating mode,
current time with simultaneous clock
synchronization with the main controller.
Radio communication: 1 - eSTER_x40 thermostat,
2 - ISM_xSMART radio module, 3 - main
controller.
3. Information about documentation
The thermostat manual is a supplement for
the main controller manual. In particular,
except for this manual, the main controller
manual should also be followed.
Manufacturer is not responsible for any
damages caused by failure to following these
instructions.
4. Storage of documentation
This assembly and operation manual, as well
as any other applicable documentation,
should be stored diligently, so that it is
available at any time. In the case of removal
or sale of the device, the attached
documentation should be handed over to the
new user / owner.
5. Applied symbols
In this manual the following graphic symbols
are used:
- the symbol indicates additional
advice and information.
- the symbol indicates important
information.
Caution: the symbols indicate important
information, in order to make the manual
more user friendly. Yet, this does not exempt
the user from the obligation to comply with
requirements which are not marked with a
graphic symbol!
6. Declaration of conformity
The purchased product meets the
requirements of Directive 2014/53/EU of
the European Parliament and of the
Council of 16 April 2014 on the
harmonization of the laws of the Member
States concerning making available on the
market of radio equipment and does not
cause harmful interference with radio
communications to other equipment, in a
residential area, provided that the product is
correctly installed and used in accordance
with the requirements of this manual.
The full text of the Declaration of Conformity
is available at www.plum.pl in the Downloads
section of the appliance website.

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7. Directive WEEE 2012/19/UE
Purchased product is designed and made of
materials of highest quality.
The product meets the requirements of the
Directive 2012/19/EU of 4 July 2012 on
waste electrical and electronic
equipment (WEEE), according to which it is
marked by the symbol of crossed-out
wheeled bin (like below), meaning that
product is subjected to separate collection.
Responsibilities after finishing a period of
using product:
•dispose of the packaging and product at
the end of their period of use in an
appropriate recycling facility,
•do not dispose of the product with other
unsorted waste,
•do not burn the product.
By adhering obligations of waste electrical
and electronic equipment controlled disposal
mentioned above, you avoid harmful.
8. The first start of the thermostat
After inserting the battery into the
thermostat, according to point 14.1
and electrical connection of the
ISM_xSMART radio module to the
main controller, in accordance with
point 15.5 it is necessary to perform
the thermostat pairing with the
radio module, as described in point
15.2.
The clock synchronization function with the
main controller automatically sets the clock
in the thermostat. The clock can also be set
directly in the thermostat from the User
menu (P04).
The change of time in the
thermostat will also cause a change
in the main controller and the
devices connected to the main
controller.
9. Thermostat main screen
Legend:
1. Operation modes:
- Schedule;
- Holiday;
- Comfortable;
- Economic;
- Antifreeze;
„Air”–Airing;
„out”–Out of house;
„PrtY”–Party;
- one time charging of the HUW;
2. day of the week: 1 –Mon., 2 –Tue., 3 –
Wed., 4 –Thu., 5 –Fri., 6 –Sat., 7 –
Sun.;
3. clock and the field of information
displayed, eg menu descriptions,
additional operating modes, fuel level,
and external temperature;
4. symbol when displaying the external
temperature value;
5. fuel level;
6. radio connection symbol - visible only
during an active radio connection with the
radio module. When it is always visible,
the thermostat is not paired with the
radio module, and when it is flashing,
there is permanent loss of radio
connection with this module;
7. indicator of battery discharge - when it is
constantly on, it means that the batteries
are on depletion, and when it flashes, it
means that the batteries are already
depleted and the thermostat has stopped
communicating with the radio module;
8. unit symbols;
9. heating symbol - the symbol is visible
when the heating signal is being sent to

6
the main controller and the preset
temperature in the room is not reached;
10. value of room temperature and edition of
the preset room temperature;
11. prompting to clean the boiler –the
symbol reminds to perform cleaning the
burner and to empty the ash pan
(optional, depending on the software of
the main controller);
12. alarm –the symbol flashes when:
- an alarm occurred in the main
controller,
- there is no radio connection with the
radio module,
the symbol is constantly displayed when:
- notification was received at the main
controller (prompt),
- the thermostat is not paired with the
radio module;
13. operating status of the burner –the
symbol is displayed only when the
program of the main controller with the
radio module is fully compatible, in
accordance with point 15.4. Visible flame
symbol means that the burner is
currently working (it is burning), while
the flame symbol with OFF means that
the burner has been turned off by the
user;
14. parameter editing symbol;
15. signaling of one time charging of the
HUW container;
16. activated parental lock - unblocking
occurs after holding the button for 5
seconds.
10.Thermostat settings
9.1. Edition of the preset temperature
Pressing or brings to the check / edit
of the preset temperature which starts to
flash.
The first press causes to edit the current
preset temperature, but does not change the
value. Only another press changes the value.
The saving and exit from the edition takes
place after pressing button. If the
change of the preset temperature value is
not confirmed with the button, then
after the inactivity time of 5 seconds the
thermostat will exit the editing menu,
without changing the preset temperature
value. The preset temperature value changes
every 0,1ºC. Note: holding or button
for 2 seconds causes a fast, cyclical change
of the parameter.
9.2. Edition of the operation modes
Editing the operating modes is enabled by
briefly pressing the button, then the
operating modes are displayed, with the
current operating mode flashing.
The operating mode is changed with or
buttons. The saving and exit from the
edition takes place after pressing the
button. Exit from editing the operating
modes to the main screen, without saving
the change of the working mode, by pressing
the A key for 2 seconds or after an idle time

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of 5 seconds. Editable operating modes that
are related to parameter settings in the user
menu (point 11):
•Schedule –the preset temperature
changes between the "Night"
temperature (P06) and the "Day"
temperature (P05), according to the
programmed time schedule (P01).
•Holiday –the preset temperature is set
single time to the "Holiday" temperature
(P10), which appears for editing:
for the duration time (P11) of this mode,
which appears for editing immediately
after the temperature:
After this time, the thermostat goes into
the mode in which he worked before
turning on the "Holiday" mode. This
mode is useful when traveling on
holidays.
•Comfortable - thermostat works with a
constant preset temperature "Day"
(P05), which ensures a comfortable
temperature in a heated room.
•Economical - the thermostat operates at
a constant preset temperature "Night"
(P06), which saves fuel.
•Antifreeze - the thermostat works with a
constant preset temperature "Antifreeze"
(P07), which ensures protection against
freezing of water in the heating circuit.
This mode is useful when there is no one
in the heated rooms.
•- the mode enables a single charging
of the HUW container for the set time
(P14), which appears for editing:
During the active single charging HUW
container, time schedules for HUW are
switched off.
•Airing (text information on 3rd item of
the main screen) –the preset
temperature is set single time to the
"Night" temperature (P06), for the
duration time (P13) of the of the airing
mode that appears for editing:
After this time, the thermostat switches
to the mode in which it worked before
turning on the "Airing" mode. This mode
is particularly useful when ventilating
rooms.
•Party (text information on 3rd item of the
main screen) –the preset temperature is
set single time for the "Party"
temperature (P08), which appears for
editing:
for the duration time (P09) of the of the
"Party" mode, which appears for editing
immediately after the temperature:

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After this time, the thermostat switches
to the mode in which it worked before
turning on the "Party" mode.
•Out of house (text information on 3rd
item of the main screen) –the preset
temperature is set single time to the
"Night" temperature (P06), for the
duration time (P12) of the of the "Out of
house" mode, which appears for editing:
After this time, the thermostat switches
to the mode in which it worked before
turning on the "Out of house" mode.
Useful mode when the user leaves the
heated room.
9.3. Edition of the schedules
Holding and buttons for 2 seconds
will enter the user menu. Select the user
menu item (P01) with the word "Sch" and
press button.
The flashing line indicates the edited day,
where: 1 - means Monday, 2 - Tuesday, 3 -
Wednesday, etc. With the or buttons
we can change the day of the week. After
pressing the button, we enter the
programming of intervals on that day.
The first time interval lights up, which is
expressed by the beginning of the interval:
00:00 (which means the interval 00.00-
00.30). The second interval is 00:30 (which
means the interval 00.30-01: 00). Use or
buttons to move between intervals (48
intervals, every 0.5 h). For each interval, the
preset temperature "Night" or "Day" can be
set. The button assigns the night or day
temperature for a given interval. The moon
represents the preset night temperature,
whereas the sun - the preset day
temperature. Save / exit follows after holding
button for 2 seconds.
Example:
00:00
00:30
01:00
01:30
……...
05:30
06:00
06:30
07:00
……...
21:30
22:00
22:30
23:00
23:30
By default, all time intervals throughout the
week are set according to the above
example. The intervals can also be edited
from the main controller.
9.4. Copying of the intervals
Holding both and buttons at the
same time for 2 seconds will enter the user
menu. Select the user menu (P02) item with
the word "cPy" and press the button.
The flashing line indicates the reference day
to be copied to other days, where: 1 -
Monday, 2 - Tuesday, 3 - Wednesday, etc.
By or buttons we can change it. After
accepting with button, the reference day
stops flashing and the day to which the
pattern is to be pasted begins to flash. You
can select several days to fill with the
pattern, but you can’t change the reference
day anymore. Confirm, save and exit by
holding button for 3 seconds.

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11.User menu
The user menu is entered by holding
simultaneously the and buttons for 2
seconds.
Individual parameters of the user menu are
visible as consecutive indications displayed
on the main screen in item no. 3, as
described in the table below.
The parameters are selected using the or
buttons and the button is confirmed
by the selection.
No.
Description
P01
„Sch”Schedules, point 9.3
P02
„CPy”Copying schedules, point 9.4
P03
„PAr”Paring, point 15.2
P04
Setting the clock
P05
„Day”Preset temp. [°C]
P06
„Night”Preset temp. [°C]
P07
„Antifreeze”Preset temp. [°C]
P08
„Party”Preset temp. [°C]
P09
Time duration of the "Party" mode [h]
P10
„Holiday”Preset temp. [°C]
P11
Time duration of the "Holiday" mode
[day]
P12
Time duration of the "Out of house"
mode [h]
P13
Time duration of the "Airing" mode
[min.]
P14
Time one time of the HUW charging [h]
P15
Turning on (on) or off (oFF) sound of
pressing the buttons.
P16
Turning on (on) or off (oFF) sound
alarms. At the (oFF) setting, alarm
notification is only visible in the
information field of the main screen
(item 3).
P17
Turning on (on) or off (oFF) sound
notification of alarms at night from
22:00 to 6:00.
P18
Screen contrast. [%]
P19
Brightness of the screen backlight.
[%]
P20
Room thermostat temperature
hysteresis. [°C]
P21
Turning on (on) or off (oFF) of the
parental lock.
P30
The strength of the radio signal
between the thermostat and the radio
module. [%]
P31
Thermostat program version.
P32
Correction of the accuracy of the
displayed temperature. [°C]
P34
Restoring on (on) or off (oFF) factory
settings.
P35
Thermostat address, point 15.4
P40
Turning on (on) or off (oFF) of the fuel
mark the day to be copied
(pattern)
selection of days to fill with the
pattern
Mon. was copied to Thu., Fri., Sat.,
Sun.

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level indicator.
P41
Turning on (on) or off (oFF) the
weather temperature indication.
P42
Turning on (on) or off (oFF) display on
the clock screen.
Holding the button for 2 seconds will
exit the user menu to the main screen.
11.1 Service menu
The entry to the service menu is done by
holding simultaneously the and
buttons for 2 seconds. After entering the
menu, enter the following password using
the and buttons: 1410 and confirm
by pressing the button. The individual
parameters in the service menu are visible as
consecutive markings displayed on the
screen in 3rd item, as described in the table
below.
No.
Description
1
Turing (on) or off (oFF) the possibility of
changing parameters from other
thermostats. The default setting is (on).
2
Turning on (on) or off (oFF) of the hotel
mode in which the possibility of changing
the main controller parameters by the
thermostat is blocked. The default
setting is (oFF).
Holding the button for 2 seconds will
exit the menu to the main screen.
12.Signaling of the alarms and prompts
12.1 Alarms
The thermostat signals the alarm states sent
from the main controller. During the alarm,
the flashing "AL" is displayed, the alarm
number and the beep - if (P16) parameter is
set to on.
The first press of the button silences the
alarm sound. With and buttons you
can check successive alarm numbers if there
are more of them at the same time.
Pressing the button again takes you to
the main thermostat screen. If the alarm is
still in progress, the flashing symbol is
still displayed on the thermostat's main
screen and the alarm code is displayed in the
information field (item 3). It is possible to
enable or disable sound signaling from the
user menu.
12.2 Prompts
In the case when the main controller sends
prompts (an information), the "In" message
and the prompt number are displayed on the
thermostat's screen. There is no audible
signal when there is a prompt. With and
buttons you can check the successive
numbers of prompts if there are more of
them at the same time. The first press of the
button confirms the reading of the
prompt. Pressing button again takes you
to the main thermostat screen. If the prompt
is still in progress, the symbol is still
displayed on the thermostat's main screen
and the confirmation code is displayed in the
information field (item 3).
13.Settings of the main controller
parameters
The thermostat allows you to change
selected parameters of the main controller.
The possibility to change selected
parameters of the main controller
depends on its program version.

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The entry to the main regulator parameters
menu is made by pressing the button for
2 seconds. Individual menu parameters are
visible as consecutive markings displayed on
the screen in no. 3 item, as described in the
table below.
The parameters are selected using the or
buttons and the button confirmes
the selection.
No.
Description
b01
Changing the preset HUW temperature.
b02
Changing the preset boiler
temperature.
b03
Turning on (on) or switching off (oFF)
the burner operation (turn the boiler on
and off).
b04
Settings of SUMMER function:
–Winter;
–Summer;
–Auto.
b05
HUW settings:
–Off;
–Priority;
–No priority.
Holding the button for 2 seconds will
exit the menu to the main screen.
14.Installation of the thermostat
The eSTER_x40 thermostat is intended for
installation only in a dry habitable room and
should be mounted on a wall or placed on a
flat surface (as a free-standing device) in a
room representative for a given heating
circuit. After choosing the place of assembly,
make sure that:
•the selected location is free of excessive
humidity and the ambient temperature of
the thermostat should be within the
range of 5..35C,
•the chosen location should ensure free air
circulation and should be located away
from heat-emitting sources, eg electronic
equipment, fireplace, heater and direct
sunlight,
•the selected place must not cause
interference or a lack of radio signal.
Description in point 15.4.
The thermostat should be mounted at a
height enabling convenient operation,
typically 1.5 m above the floor.
The thermostat should be screwed to the
wall with mounting screws. Access to the
screw holes is obtained by opening and
removing the back cover of the thermostat.
A flat screwdriver can be used to open the
cover.
The cover is screwed to the selected location
of the wall with the appropriate position, as
shown in the figure below. The hole spacing
can be determined by attaching the cover to
the wall.

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In order to place the thermostat on a
flat surface, use a dedicated stand.
14.1 Inserting or replacing the
batteries in the thermostat
To insert or replace the battery, remove the
back cover of the thermostat housing.
When inserting the batteries, the
battery poles have to be positioned
correctly.
It is recommended to use alkaline
batteries to power the thermostat.
The thermostat's working time
depends on the quality of the
batteries used.
15.Radio module
15.1 Installation and connection of the
radio module to the main
controller
The ISM_xSMART radio module should be
mounted on a wall near the installation
location of the main controller. If the radio
connection is poor, try placing the module in
other places. Moving the module even by a
few centimeters can affect the quality of the
connection.
Placing a radio module in a metal
casing, eg a mounting box, a metal
boiler casing, etc., will dampen the
radio signal and thus interfere with
the operation of this module.
The radio module should be screwed to the
wall with mounting screws. Access to holes
for assembly screws is obtained after
unscrewing the cover of this module.
Screw holes
Assembly screw

13
Terminals D +, D-, GND, 12 VDC of the radio
module should be connected to the RS485
transmission socket of the main controller, in
accordance with point. 15.5
When connecting the transmission
and power supply attention should
be paid to the proper polarity of
connection of D +, D- and GND, 12
V between the radio module and the
main controller. Improper
connection may lead to damage to
the main controller or errors in its
operation.
The maximum cable length depends
on the cross-section of the wires.
For a 0.5 mm2wire, it should not
exceed 30 m. The cross-section
should not, however, be less than
0.5 mm2.
15.2 Pairing the radio module with the
thermostat
The radio module connected
electrically to the main controller
requires pairing with a thermostat.
Until the pairing with the radio module on
the thermostat screen is complete, the
and symbols are permanently displayed.
Pairing from the main controller menu:
The pairing method is only available
when the main controller program is
fully compatible with the radio
module.
Enter the main regulator menu:
MENU →General settings →Radio
module settings → Pairing mode and set
the Pairing mode to Yes, then the pairing
mode will be activated for 4 minutes, during
this time the thermostat with the radio
module should be paired. To do this, hold
simultaneously and button for 2
seconds in the thermostat and then select
the program (P03) in the user menu of the
thermostat, where "PAr" is displayed on the
screen. After accepting with button, the
pairing will start (the word "PAr" begins to
flash).
Screw holes
Assembly screw
Module
4x0.5 mm2wire,
max. length 30 m
Assembly screw

14
If the thermostat has never been
paired with the radio module
(factory setting), then pairing
occurs after pressing the
button, without having to enter the
user menu.
The correctness of the pairing will be
confirmed by the message "END" and
"Succ" on the thermostat. The and
symbols are also no longer visible on the
thermostat screen. During the active pairing
mode, you can pair, in the same way,
subsequent thermostats. After correctly
pairing the thermostats with the radio
module, end the pairing mode in the main
regulator menu or you can wait for the active
pairing time to expire.
After establishing the radio connection with
the thermostat in the main controller
Information menu, the thermostats will be
shown as eSTER_x40, with the version of the
software displayed.
Connecting the radio module to the
master controller again does not
require pairing if the thermostats
have previously been paired.
Pairing directly from the radio module:
With limited compatibility of the main
controller program with the radio module,
the Pbutton of the radio module is used to
start the pairing mode, which should be
briefly pressed once - then the LED will start
to flash, which means that the pairing mode
will be activated for 4 minutes.
Only one thermostat should be paired at this
time, analogously as described during pairing
from the main controller menu level. After
correct pairing of the thermostat, end the
pairing mode by briefly pressing the Pbutton
or wait until the active pairing time expires.
After establishing the radio connection with
the thermostat in the main controller
Information menu, the thermostat will be
visible as ecoSTER TOUCH, with the given
version of the software.
The pairing method with the P
button can also be used when the
radio module program is fully
compatible with the main controller.
15.3 Resetting the memory of the radio
module pairing
The radio module stores data on paired
thermostats in its memory, so after replacing
any thermostat it is necessary to reset the
memory of the radio module by setting the
parameter in the main controller menu:
MENU →General settings →Radio
module settings → Delete the device
association = Yes.
Memory reset can also be performed by
pressing the Pbutton of the radio module for
about 8 seconds. Confirmation of removing
the pairing memory is to turn off the LED for
a moment, immediately after releasing the P
button.
The reset radio module requires re-
pairing with thermostats.
15.4 Cooperation of the radio module
with several thermostats
The cooperation of the main
controller with more than one
thermostat is possible only when
the radio module program is fully
compatible with the main controller.
To check if the main controller program is
fully compatible with the radio module, select
the tab in the main controller menu:
MENU →Information →Programs
versions and if ISM_xSMART information is
visible, with the displayed version of the
program, the radio module will work with up
to three thermostats, if there is no
information, the radio module can work with
only one thermostat. In order to check if it is
possible to get full cooperation with
subsequent thermostats, contact the
manufacturer of the main regulator, who will
determine if it will be possible to update the

15
software of the main controller so that this
cooperation will be ensured.
The radio module can operate with
up to three thermostats.
Correctly paired thermostats with a
radio module require setting an
individual address for each of the
thermostats.
The address for the thermostat is set in the
user menu, parameter (P35). One should set
a different address for each thermostat in the
range 1..3.
The correctness of the individual address
settings can be checked in the main
controller Information menu, where the
individual thermostats will be displayed as:
eSTER_x40 T1, eSTER_x40 T2, eSTER_x40
T3.
The structural elements of the building, the
layout and equipment of rooms, the amount
of electronic equipment, the distance
between the installation place of the radio
module and the thermostat affect the level of
the received radio signal, therefore when
choosing a place to install the thermostat,
take into account the obtained signal level in
the selected location by observing the
symbol on thermostat screen. If the
symbol:
- is not displayed, the radio connection with
the radio module is correct. The symbol is
shown only briefly during active radio
communication with the radio module,
- flashing, there is no radio connection or
there is a weak signal and you should choose
a different place to install the thermostat.
The value of the radio signal strength can be
read in parameter (P30) of the thermostat
user menu.
If the radio connection to the
thermostat is lost, the main
controller will go into operating
mode without a thermostat after a
few minutes.
15.5 Connecting the radio module to
selected main controllers
The electrical schemes of the radio module's
electrical connections to the main controller's
terminals are shown below.
Connection of the module to the ecoMAX350P1,
P2, R1, R2: 1 –radio module, 2 –main
controller.
Connection of the module to the ecoMAX800P3,
D3 and ecoMAXX800R3, T3: 1 - radio module, 2
–control panel, 3 –main controller.

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Connection of the module to the ecoMAX850P2,
R2, D2: 1 - radio module, 2 –main controller.
Connection of the module to the ecoMAX860P1,
P2, D1, D2: 1 - radio module, 2 –main
controller.
Connection of the module to the ecoMAX860P3,
D3: 1 - radio module, 2 –main controller.
Connection of the module to the ecoMAX910R1,
ecoMAX920P1: 1 - radio module, 2 –main
controller.
It is not recommended to turn off
the power supply of the main
regulator due to frequent attempts
to obtain a radio connection of the
thermostat with a radio module,
which leads to a quick discharge of
the battery in the thermostat.

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16.Technical data
eSTER_x40
thermostat power
supply
2 x AA (LR6) 1,5V -
alkaline batteries
ISM_xSMART radio
module power supply
5..12 VDC - directly
from the main
controller socket
Degree of protection
for the thermostat /
radio module
IP 20 / IP 40
Relative humidity
5…85% without steam
condensation
Storage temperature
of the thermostat and
radio module
-10..60C
Working temperature
of the thermostat and
radio module
5..35C
Communication
Bi-directional ISM radio
communication
The band of radio
transmission
ISM 868 MHz,
(the band 865…868
MHz)
Transmission power of
the thermostat and
radio module
20 mW (+13 dBm)
Radio network
topology
One radio module and
many subordinate
thermostats
Display
LCD with backlight
Controlling
Capacitive buttons
Dimensions
Thermostat:
87 mm x 87 mm x 27,3
mm
Radio module:
70 mm x 50 mm x 7,7
mm
Thermostat / radio
module weight
0,2 kg / 0,16 kg
The thermostat
installation method
On the wall or free-
standing
The module
installation method
On the wall
Composition of the set:
- eSTER_x40 thermostat 1 piece.
- thermostat stand 1 piece.
- ISM_xSMART radio module 1 piece.
- AA LR6 battery 2 pieces.
17.Storage and transport conditions
The thermostat and radio module must not
be exposed to the direct influence of
atmospheric conditions, i.e. rain and sun
rays, and vibrations higher than typical
during road transport. Storage and transport
temperature should not exceed -10…60°C.
18.Description of possible faults
Symptoms
Tips
The thermostat
is not working.
The display
shows nothing.
Check the correct installation
of the battery - point 14.1 or
whether the batteries used are
not discharged.
The thermostat
is working but
there is no
backlight on
the display.
This is a normal phenomenon
that occurs with partially
discharged batteries. The
thermostat is still working
correctly. If the backlight is
required, replace the batteries
with new ones - point. 14.1
Buttons for
changing
settings do not
work.
Check if the buttons are not
blocked and if necessary
disable the child lock - point 9
(item 16).
The thermostat
does not start
the heating
mode.
The preset temperature may
be lower than the current room
temperature - increase the
preset temperature.
The radio
module can’t be
paired with a
thermostat or
several
thermostats.
The cause may be a lack of
coverage. For the time of
pairing with the radio module,
place the thermostat near this
radio module.
The battery in
the thermostat
is discharging
too quickly.
Check that the batteries used
comply with the
recommendations and are of
good quality. The cause may
also be frequent attempts to
connect the thermostat with
the radio module, eg during
longer interruptions in the
power supply of the main
controller.
Revision history:

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Poland
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