ELEKTROBOCK BT725 User manual

MADE IN CZECH REPUBLIC
BT725 User manual
Wireless thermostat
with WiFi module

2
Contents
Receiver description.................................. 3
Receiver installation................................... 3
Transmitter description............................... 4
Transmitter description............................... 4
Pairing receiver and sender......................... 5
Transmitter key lock................................... 5
Configuration............................................ 6-8
Operating Modes...................................... 9
Setting Time............................................. 10
Setting constants on the transmitter.............. 11
Setting constants in the app........................ 12-13
Program setting......................................... 14
Holiday Mode............................................ 15
Tips ........................................................ 16
Technical parameters................................. 16
Watch a video that will facilitate the FIRST SET-UP:
https://www.elektrobock.cz/bezdratovy-termostat-s-wifi-modulem/p1731
On our youtube channel, you can also share other video tutorials and news
in our assortment.
https://www.youtube.com/channel/UC68bFklkudV5pW0sNQzQjow
Videos

Install the receiver (for indoor use) away from large metal objects
(min. 0.5 m) and out of power lines to affect signal reception!
Make sure there is a sufficient WiFi signal at the installation site!
- Turn out the main circuit breaker.
- Connect the receiver to the boiler according to the diagram (for the
boiler use the terminals intended for the room thermostat 2 wires!)
- Connect the receiver to 230V / 50Hz mains.
- Switch on the main circuit breaker, the receiver flashes green (see
LED display table).
- Wait approximately 15 - 20 seconds for the thermostat to connect to
the WiFi network (see blue LED).
We recommend that the installation be carried out by a person
with the appropriate electrical qualification!
Briefly press the FUNCTION BUTTON at the back of the thermostat receiver. The red "RFM" LED lights up briefly and
then TEST appears briefly on the transmitter display. If the message does not appear and the red LED flashes, you need
to pair the transmitter with the receiver (see page 5).
Use the buttons / on the transmitter to set the desired temperature higher than the current one. Within two
minutes, the relay on the thermostat receiver should switch on and turn on the boiler.
FUNCTION VERIFICATION
3
Receiver description
FUNCTION BUTTON
- short push (about 1.5 s)
CODE LEARNING mode
- long push (about 5 s)
RESET (memory clearing)
output
for the boiler
(potential-free
switch contact)
power supply
230 V/50 Hz
pass-through socket
for connecting an-
other appliance
Switch function:
AUT - operates according to program
ON - permanently on OFF - permanently off
CAUTION: after RESET of
the receiver the WiFi network
configuration is lost and the
receiver has to be reset.
Pairing with the transmitter is
no longer necessary.
!
LED RECEIVER SIGNALLING
illuminates for 4s when output is switched
flashes for 4s when output is off
illuminates when a PC or mobile phone is connected
1) flashes intermittently during communication with PC (during data exchange)
2) flashes after 1/2 second = ANTI-FREEZE MODE (2 min ON, 8 min. OFF)
illuminates when communicating remotely over a server
1) 3.5 seconds on and off for half a second when connected to the LOCAL
NETWORK and does not communicate remotely via a server
2) 3.5 seconds off and on for half a second when in ACCESS POINT (AP) mode
3) flashes when WiFi module error
illuminates when transmitting data between receiver and transmitter
flashes when a transmission error occurs, or when there is no communication with
the transmitter (temperature sensor)
Receiver installation
BOILER
2
Circuit diagram:
•Receiver power supply 230 V/ 50 Hz
•Receiver with WiFi module and system of CODE
SELF-LEARNING and E-EPROM memory (keeps
the code in the event of a power failure)

4
Transmitter description
Operating modes:
OFF, PROG*, Auto,
Manu, Holiday*
Current day
of the week
P tEP...
desired
temperature
InFo...
appears in
communication
with the
receiver
tESt...indicates
communication
test
Non-freezing
temperature
3 °C
Current temperature Remote message indication
Buttons lock
indication
Current time
Signal transmission
Low battery
-
+
MENU
The first push of any button
activates backlight.
short push on the butt.
MENU = ENTER (confirm)
long push on the butt.
MENU (about 2 s) = a step
back
-
+
MENU
-
+
MENU
1. push
2. push
Heating on
indication
PROG* ......flashes if you press any
button during remote communication
Holiday*... appears if you activate the holiday mode
from the app
Transmitter installation and battery replacement
AAA AAA
Insert 2 x 1,5 V AAA alkaline batteries.
Remove the transmitter’s front cover.
A B
Mount the back cover on the wall.
C
Fasten the front cover on the back cover.
1
2
D
Free-standing Mount:
1
2
Slide the thermostat on the stand and secure it
by turning it.
Avoid places like: windowsills, televisions,
PCs or devices with heat or cold emission.
!
Always use only 2 x 1,5 V AAA batteries!
(Do not use rechargeable batteries).
!
Dispose of the used batteries in compli-
ance with regulations for dangerous waste
handling!
!
Low batteries are indicated by
the symbol.
E
-
+
MENU
AAA AAA
Remove the transmitter’s front cover see A.
Insert 2 x new 1.5 V AAA microbatteries.
Fasten the front cover on the back cover
see D.

5
1) Control via SERVER (from anywhere within range of Internet connection).
- configure using a smartphone or PC.
2) Control via your router outside the home network, it is necessary to have a public IP address.
- configure using a smartphone or PC.
3) Control within reach of your router (home only), no public IP address required.
- configure using a smartphone or PC.
4) Control within an apartment where there is no WiFi connection. The thermostat creates its own
WiFi hotspot (AP access point).
- configure using a smartphone or PC.
5) Control and setting of thermostat via USB cable via PC with Win10.
- configure using a computer.
6) Manual operation, you always know what is happening and you can manually reset the thermostat.
- go to page 9.
Before you configure
Make sure that you have:
• WiFirouter
• validemailaddress
• smartphone(Android/Apple)oradevice(PC)withWin10
SELECT THERMOSTAT CONTROL MODE:
Pairing receiver with the sender
By default, the BT725 WiFi is configured and ready for use - after commissioning the receiver with the
transmitter, just check the function (see page 3)!
However, if the transmitter memory is cleared (factory reset), use the following procedure:
The red LED on the receiver
lights up briefly and the
transmitter display returns to
the home screen.
-
+
MENU
A
Press 2x MENU
Basic view
-
+
MENU
Use the butt. to find
„UAdr“.
BAUTO or MANU
appears
-
+
MENU
Push 1x
MENU .
CD
Shortly press “FUNCTION BUTTON“
on the receiver BT725 WiFi.
Key lock
-
+
MENU
press butt. MENU + butt.
To cancel the lock function, press simultaneously butt. MENU and butt.
This function can also be activated via the application, see page13.

6
Configuration
1. DOWNLOAD THE APPLICATION TO YOUR SMARTPHONE
The latest version for WIN10 is available in Microsoft Store under the name: EOB PT-WiFi
https://www.microsoft.com/cs-cz/p/eob-pt-wifi/9pljr31qfvx2#activetab=pivot:overviewtab
The latest version for Android is available on Google Play under the name: EOB PT-WiFi
https://play.google.com/store/apps/details?id=cz.elbock.EOB_PT_WIFI
The latest version for iOS is available in App Store under the name: EOB PT-WiFi
https://apps.apple.com/cz/app/eob-pt-wifi/id1435475591?l=cs
EOB PT-WiFi_android
EOB PT-WiFi_win10
EOB PT-WiFi_iOS
2. RUN THE APPLICATION
Select
ALLOW - this
is necessary
for automatic
detection of
WiFi network
Make sure
that the
thermostat is
installed
and fed!

7
3. THERMOSTAT SETTING USING WiFi
Select USING WIFI Press OK to search for
networks.
The thermostat connects to its
network
PT WiFi_xxxxxx.
4. SELECT A NETWORK AND ENTER THE NETWORK PASSWORD
If your network is not displayed on
the list, click on the following button
at the bottom left: MY NETWORK
IS NOT ON THE LIST and follow the
instructions.
Enter the correct password for the
selected network. We recommend that
you select the option to display your
password.
! CAUTION:
If you enter a wrong password or wrong network
name, the thermostat will not be connected and it
will be necessary to revert it to factory settings and
repeat the configuration!
How to reset the thermostat:
- on the RECEIVER, press the FUNCTION BUTTON
at the back for more than 5 seconds. All the LEDs
flash and the receiver is reset.
The WiFi network configuration will be cancelled,
but the transmitter does not need to be paired
again!
For newer Android versions, you
need to select the network
manually!

8
4. CREATE AN ACCOUNT ON THE ELEKTROBOCK CZ SERVER
We recommended that you select a
password that is not linked with your
email account!
Used only for logging to
your account on the ELEKTROBOCK CZ server.
Select the
code in the
email and
copy it. Enter
it in the
application
and press OK.
If you do not
receive the
email, double-
check the
email address
and also
check your
SPAM folder!
tN4C9EFVFg
The
thermostat
will connect
automatically
and the
application
will show
current data
from the
thermostat.
connected
disconnected
If this message appears, check
if the selected network has
Internet access!

9
Operating Modes
-
+
MENU
AUTO
In the AUTO mode,
the thermostat works
according to the set
one-week programme.
Pressing any button for the first time activates the display
backlight. Push the “MENU” button briefly again to enter the
main menu where you can select the operating modes.
-
+
MENU
-
+
MENU
MANU
In the MANU mode, the
thermostat maintains one
set temperature, until it is
manually changed.
Open the app and click connect. The basic screen appears,
allowing you to set the modes.
-
+
MENU
OFF
The thermostat is turned off
It is recommended to use the
OFF mode when the heating
season is not under way
Anti-freezing protection
(3 °C) is still enabled.
i
i
OPERATING MODE CHANGE
-
+
MENU
ABasic view
B
-
+
MENU
-
+
MENU
-
+
MENU
Select the desired mode by clicking the
icon.

10
Setting Time
-
+
MENU
IT IS NOT NECESSARY TO SET FOR REMOTE CONTROL. THE TIME IS AUTOMATICALLY SYNCHRONIZED WITH THE
CONNECTED DEVICE (SMARTPHONE or PC).
-
+
MENU
-
+
MENU
2x MENU
Basic view
AUTO or MANU
appears
Use the butt. to find
“CLOC“.
A B
-
+
MENU
Confirm by 1x MENU .
C
-
+
MENU
The hour indicator is
flashing.
Set the current hour with
the / buttons.
D
-
+
MENU
Confirm the setting
by pushing MENU 1x.
Set minutes, seconds, day,
month and year in the same
way.
Confirm every setting with the
MENU button.
E F
To return to the basic
mode, hold the
long 2x MENU .
G
!CAUTION: If you control the thermostat remotely
from another time zone, it is necessary to set the
same time zone in which the thermostat is located!

11
Setting constants on the transmitter
-
+
MENU
AUTO or MANU
appears
-
+
MENU
Use the butt. to find
“COnSt“.
B
-
+
MENU
-
+
MENU
A
2x MENU
Basic view
Only the following constants can be changed on the transmitter:
temperature measurement correction, remote management, time change and firmware version display. Follow the instructions below
to enter the settings.
-
+
MENU
Push 1x MENU .
C
-
+
MENU
Set the appropriate value
with the / buttons
and confirm it with the
MENU button.
D1. Measured Temperature
Correction
(-5 °C to +5 °C)
This constant is used for the
manual comparison of deviations
between the real and the measured
temperatures (this may be caused,
for instance, by an inappropriate
placement of the thermostat).
i
-
+
MENU
Set the appropriate value
with the / buttons
and confirm it with the
MENU button.
E2. Remote administration
( A/ - )
This constant is only displayed during
remote administration. Change only in
case of internet failure. After entering
the „ -“ symbol and confirming by
MENU button,wait until the local
network mode starts to appear on the
receiver (the blue LED flashes once
every 3.5 seconds).
Connect the smartphone to your local
network (turn on WiFi) and launch
the application. Click CONTROL
LOCALLY, enter the IP address (if
the application does not display it
automatically, you will find the IP
address directly in the thermostat,
see page 16).
i
After the Internet connection is restored, you can control the thermostat
remotely again by selecting in the application:
Network configuration - Do you want to control the thermostat remotely
via the Internet?
(the application must be connected to the thermostat), you will be prompted to
enter the thermostat name and login information. After entering the data press
LOGIN. The thermostat connects via the Internet and the constant 20
in the thermostat is automatically changed to A.
-
+
MENU
Set the appropriate value
with the / buttons
and confirm it with the
MENU button.
F3. Time change
(A/ -)
If YES is selected, the SUMMER
/ WINTER time is automatically
changed according to the calender.
You do not have to watch when the
time changes, the thermostat takes
care of automatic time setting for the
period.
i
-
+
MENU
If you push the button long
(for more than 3 seconds), the
RESET message appears on the
display and the thermostat returns
to factory defaults.
G4. Firmware version/reset to factory defaults
Information about the firmware
version appear under the constant 4.
i
CAUTION: after the RESET of
the transmitter it is necessary to
PAIR with the receiver again
page 5!
!

12
Setting constants in the app
In the application it is possible to set the basic constant and IN THE SERVICE MODE other
constants related to the system control. Always perform settings in the app as follows:
TEMPERATURE RANGE
Setting the minimum and maximum adjustable temperature limits. Selection is
done in the range from 3 °C to 39°C (per 0.5°C).
CONTROL TYPE
PI = proportional integration control
The principle of PI control is to compare the actual room temperature with
the desired temperature. The aim of PI control is to achieve and maintain the
desired temperature without overshooting (see graph). For the correct function
of the PI control set the control parameters:
HS = Hysteresis
Difference between required and actual temperature.
If the hysteresis is 1 ° C, the desired temperature is 20 ° C, the thermostat
switches off at 20 ° C and switches on again at 19 ° C (see graph).
For correct function of hysteresis set parameters according to type of heating
system:
Choice of control type:
PID = proportionally integration derivative control
The principle of PID is a continuous comparison of the current room
temperature with the desired temperature and automatic adaptation of
the controller to the given conditions.
It is the most perfect continuous control, not only a short control time can be
achieved, but also high accuracy without permanent control deviation. The
minimum switch-on time is internally set to 2 minutes, the proportional band
is 2 ° C, the time interval is automatically calculated according to the current
temperature conditions (see graph).
t
t
t
t
t
t
T
Topení
ON
požad.
teplota
T
Topení
ON
požad.
teplota
T
Topení
ON
požad.
teplota hystereze
pásmo
proporcionality
PID CONTROL
t
t
t
t
t
t
T
Topení
ON
požad.
teplota
T
Topení
ON
požad.
teplota
T
Topení
ON
požad.
teplota hystereze
pásmo
proporcionality
PI CONTROL
Note: The graphs are only approximate, the
actual course of regulation varies according to
the actual conditions in the measured object!
t
t
t
t
t
t
T
Topení
ON
požad.
teplota
T
Topení
ON
požad.
teplota
T
Topení
ON
požad.
teplota hystereze
pásmo
proporcionality
HYSTERESIS
(factory setting 0.5 ° C)
HYSTERESIS
MINIMUM ON TIME
We set the minimum switch-on time of the boiler in minutes during hysteresis.
Choose according to the type of heating system used in the range from 1 to 5
minutes (see chart).
We set from 0.1 to 6 °C. Depending on the set value, the thermostat will switch
on at: T switching = T required - HYSTERESIS
(factory setting 2 min.)
MINIMUM ON TIME
(factory setting 2 ° C)
PI CONTROL ZONE
Select in the range from 1 to 5 minutes. The setting
depends on the type of heating system and is dependent
on the selection of the time period of the PI control. We
recommend setting up according to the table.
This value determines from which value the PI control starts to function. For
example, the desired temperature is 22 ° C, the proportional band is 1.5 ° C.
The source will heat up to 20.5 ° C fully. When this value is reached, PI control
starts to function. The PROPORTIONALITY band can be set from 0.5 to 3.0°C
(per 0.1°C).
(factory setting 10 min.)
PI CONTROL INTERVAL
It is selected according to the thermal inertia of the object. The optimal setting is
usually 10 - 15 min. Optional range 5 min to 20 min (per 1 min).
Heating
type
Minimum
source on time
electric heating 1
panel radiators 2 (3)
cast iron radiators 4
underfloor
heating 5
BY DRAGGING BY CLICKING BY CHECKING
ü
TO ENTER THE SERVICE MODE IT IS NECESSARY TO ENTER THE SERVICE PASSWORD,
SEE P.13!
Constants marked with the service icon are displayed only in the service mode.

13
UL
EVEN/ODD WEEK SELECTION:
This setting is advantageous for example in shift operation (there are different requirements for thermal comfort in the building every
week).
Pr8 and Pr9 programs are automatically alternated. These programs can also be customized to your requirements.
BOILER MAINTENANCE
Set the date when we want to be informed about the necessity of prescribed boiler service. In the section Settings - About the device,
the message “Boiler maintenance required” will be displayed in red (we can cancel this by entering a new date for the next boiler
maintenance!).
AUTOMATIC CHANGE OF WINTER / SUMMER TIME
If selected, the SUMMER / WINTER time is automatically changed according to the calender.
You do not have to watch when the time changes, the thermostat takes care of automatic time setting for the period.
Setting the thermostat function.
HEATING = when the current temperature drops below the required temperature, the output relay switches (for heating systems)
AIR-CONDITION = when the current temperature exceeds the required temperature, the output relay switches (for cooling
systems)
HEATING / COOLING
YOUR CODE
KEY LOCK
Serves to lock the controls. It serves as protection against unwanted manipulation by a foreign person.
KEY CODE
Enter a code to activate the controls. Set a combination of 4 numbers (from 0 to 9). The keys are locked
within 1 minute (after entering the basic display), the following symbol is displayed on the LCD “ “.
When any key is pressed, the LCD prompts you to enter the key code; after entering the correct code, any
changes can be made (the controls are operational again). The controls are locked again automatically after
the setting is finished (approx. 1 min.).
RECOMMENDATION: - record the key code in the table
- cancelling the code is possible by un-checking the application or resetting the thermostat to the factory settings
CHANGE SERVICE PASSWORD
RESET DEVICE TO FACTORY SETTINGS
It serves to block constants related to the setting of the given control. Good
for service technicians. It is recommended to change it after the first
connection to the thermostat (the default password is 1234).
After entering the password you will be automatically redirected to
the "Set constant" tab.
Note: After entering the password you have the option to select NOT
USE SERVICE PASSWORD, then you can use any four numbers for the
service mode and all constants will always appear. THIS SELECTION IS
RECOMMENDED ONLY FOR TECHNICIANS!
Allows you to reset the receiver to the factory settings. Note that the WiFi network configuration will be deleted and the
thermostat will need to be reset!
PREMATURE ACTIVATION
This function guarantees the required temperature at the required time. You don't have to think about
when to turn on the heater to get warm when you get up in the morning, but don't heat too long in
advance. You only program when you want the desired temperature. Within two days of operation, the
thermostat detects the thermal constants of the room and then switches the heating on in advance. The
premature activation time is limited to 2 hrs.
active function
indication

14
Setting a Programme
Click the temperature
program
You can change programs by clicking on the graph in the application. There are 9 weekly programs with 6 temperature
changes per day (programs 8 and 9 are used for even / odd selection, see page 13).
Select the day you want to set
Choose an option to set up using a chart or table.
Click to change the time values one
by one. The temperature can be
set by dragging or clicking on the
temperature.
program 1
program 2
program 1
program 2
Pro místnosti:
Pro místnosti:
5
Pro místnosti:
6
Pro místnosti:
7
Pro místnosti:
TEMPERATURE PROGRAM CHARTS

15
Holiday Mode
The thermostat maintains a set temperature from and to a set data and selected time. After the set time has elapsed, it automatically
returns to AUTO mode.
The holiday can be cancelled at any time in the app by selecting OFF.
In the application it is possible to set the date and time of start and
end of holiday.
i
Click the Settings icon Click the Holiday icon Select On-set temperature-enter the
date and time of the start and end of
the holiday
The active Holiday Mode is indicated
directly on the basic screen
-
+
MENU
The holiday-suitcase icon and the holiday end date also
appear on the transmitter display.
i

Pb
LEAD FREE
in accordance
with RoHS
MADE IN CZECH REPUBLIC
ELEKTROBOCK CZ s.r.o.
Blanenská 1763
Kuřim 664 34
Tel.: [phone]
www.elbock.cz
For the purpose of any warranty and post-
warranty service, please, send the product
including proof of purchase to the address
of the manufacturer. The warranty does
not apply to defects caused by improper
installation and interference with the
equipment design.
EU CERTIFICATE OF CONFORMITY
ELEKTROBOCK CZ s.r.o. hereby states that the BT725 WiFi radio device is
in accordance with Regulation No. 2014/53/EU. The entire EU Certificate of
Conformity can be found on the website www.elbock.cz
Receiver
Power supply 230 V/ 50 Hz
WiFi module (Frequency range;
Receiver sensitivity; Baud rate; Transmis-
sion power)
IEEE802.11b/g/n 2,412 - 2,472 GHz;
11b: –97.2 dBm, 11g: -94.1 dBm, 11n: 93.9 dBm;
1 - 54 Mbps; 11b: 16 dBm, 11g: 14 dBm, 11n: 12 dBm
RFM frequency 433,92 MHz
RFM range 300 m (in open areas)
35 m (in built-up areas)
Sensitivity < -102 dBm
Output relay, max. 8 A
Ingress protection rating IP20
Protection class II
Working temperature 0°C to +40°C
Transmitter
Power supply 2 x 1.5 V AAA alcal. batteries
Type of communication bidirectional
Vf output < 10 mW
Frequency 433,92 MHz
Temperature setting increments of 0.5°C
Temperature range 3-39 °C (non-freezing 3 °C)
Min. indication step 0,1 °C
Measurement accuracy ± 0,5 °C
Battery lifetime heating season
Ingress protection rating IP20
Working temperature 0°C to +40°C
Tips
Selecting the application language will not take effect until
you close and reopen the application (CZ/PL/EN/DE).
Identical function with PAIRING (page 6). A signal is sent
between the receiver and the transmitter (TEST).
Testing correct thermostat connection to the boiler. The
output relay is turned on and off several times (on LCD
transmitter, the following symbol appears ).
If you wish to control the thermostat only in the local network, you must know the IP address. The IP address is
written directly to the LCD transmitter as described below.
-
+
MENU
Press 2x MENU
-
+
MENU
Use the butt. to find
“InFO“.
-
+
MENU
Push 1x
MENU .
It is possible to add other users of this device, provided that
he / she has to have an account at ELEKTROBOCK CZ.
Possibility to modify your profile, e.g. change your
password.
Suitable e.g. for service technicians who set the thermostat.
Once confirmed, you will no longer be able to control this
device from your account.
After confirmation, your account at the company
ELEKTROBOCK CZ will be removed.
It is used for logging out - disconnection from the
thermostat. When reconnecting, you must re-enter the
password!
ENTER THE SERVICE MODE
see page 13