ELEKTROBOCK BT22 User manual

MADE IN CZECH REPUBLIC
BT22 is an ideal solution for places where it is expensive or completely impossible to pull wires from
thermostat to the boiler. It is designed for automatic regulation of heating systems in family houses and
housing units with own boiler (gas, electric). Large backlit display on allows the transmitter to control the
thermostat even in the dark. In addition, it oers intuitive navigation in the selected language (CZ / PL /
EN / DE / RU / SK). The receiver is equipped with a code self-learning system and E-EPROM memory, which
stores the save code even in the event of a power failure. BT22 works with two-way communication on the
frequency 433.92 MHz. The range of the set can be up to 35 m (built-in).
• Receiver power supply 230 V / 50 Hz
• Receiver with CODE SELF-LEARNING sys-
tem and with E-EPROM memory (retains
the code even when power failure)
• Two-wire connection to the boiler (po-
tential-free contact)
• Indication LED for status signaling
- power indication
- signal transmission / reception
- fault condition
- relay closed
receiver - to the socket
transmitter
• Large clear and backlit display
• Intuitive navigation in the selected language
(CZ / PL / EN / DE / RU / SK)
• Preset weekly program
• 6 temperature changes for each day
• Programming after 10 minutes and 0.5 ° C
• Programming by day or Mon-Fri, Sat-Sun and
Mon-Sun
• HYSTERESIS selection 0.1 ° C to 6 ° C
• Possibility of short-term temperature change
• Manual mode (MANU)
• Permanent OFF
• Holiday mode
• Antifreeze mode (3 ° C)
• Function to test the correct connection (TEST)
• Adjustable temperature correction
• Auto selection. DST / WINTER time changes
• Alkaline power supply. batteries 2 x 1.5 V / AA
- is freely portable
- in a modern design
- with stand for stable placement in the most
suitable place (included in the package)
BIDIRECTIONAL COMMUNICATION
- guarantees the reliability of signal transmission
and enables obtain feedback
BT22
BT22
WIRELESS THERMOSTAT
with the receiver to the socket

2
RECEIVER CONTROLS
RECEIVER ASSEMBLY
LEARNING CODE
• switch o the main circuit breaker
• connect the receiver to the boiler according to the diagram (for the boiler use the termi-
nals designed for room thermostat 2 wires!)
• connect the receiver to the 230V / 50Hz mains
• switch on the main circuit breaker, the green LED on the receiver lights up and the recei-
ver is ready to the next setting
Install the receiver (indoors) as far away as possible from large metal objects
(min. 0.5 m) and outside power lines due to signal reception! We recommend that the
installation is carried out by a person with the appropriate electrical qualication!
The BT22 assembly is factory congured and ready for use - after commissioning the receiver
and transmitter, simply use the TEST function (see page 6)! However, if the receiver‘s memory is
cleared - the red LED ashes, use the following procedure:
1. Press the“FUNCTION BUTTON” on the receiver for approx. 1.5 s, the yellow and red LED, the
receiver is waiting for a code (so-called learning mode).
2. On the transmitter (after inserting the batteries, see page 3), press the“MENU” button twice,
turn the button “ “ choose CONST mode and pressing the button several times.“ “ go to TEST.
Turn the button “ “, the signal is sent to the receiver. The for sign appears briey on the transmitter
wireless broadcasting“ “ and when communication is established, RFM lights up permanently.
3. Acceptance of the code into the receiver is indicated by the simultaneous ashing of the yellow and
red LEDs, that is code learned. After receiving the code, the output relay will be closed several times
for verication correct function BT22.
Indication LEDs:
GREEN LITS - correct connection to the mains
YELLOW
YELLOW FLASHES - transmitting or receiving a signal
RED FLASHES - empty E-EPROM memory
RED LITS - FAILURE (if within about 6 hours does not
receive any signal from the transmitter switches to 2
min mode. ON and 8 min. OFF)
YELLOW
YELLOW+RED FLASH ALTERNATELY - code learning mode
YELLOW
YELLOW+RED FLASH AT THE SAME TIME - the code has been
learnt
YELLOW
YELLOW+RED LIT AT THE SAME TIME - memory clear mode
ORANGE LITS - closed relay1
FUNCTION BUTTON
- short press (approx. 1 s)
CODE LEARNING mode
- long press (approx. 5 s)
RESET (deleting memory)
output for boiler
(potential - free)
switching contact)
power supply
230 V/50 Hz
through socket for
connecting another
appliance
Switch function:
AUT - works according to the program
ON - permanently on OFF - permanently o
BOILER
2
Diagram of connection:

3
alkal.baterie
1.5V/AA
alkal.baterie
1.5V/AA
1
2
3
4
5
67 89 10 11
12
13
14
15
16
Fig.1 Fig.3Fig.2
BATTERY REPLACEMENT
When appears on the display“ “ the batteries must be replaced.
1. Remove the control unit from the bottom cover of the
appliance (g.1).
2. Replace the batteries. Make sure the polarity is correct
marked in the battery compartment (Fig.2). After removing
the batteries of the thermostat retains all settings in memory.
Always use alkaline 2 x 1.5 V AA batteries!
Check the time setting after replacing the batteries!
Recommendation: replace the batteries before each heating season!
Dispose of used batteries in accordance with hazardous waste regulations!
TRANSMITTER DESCRIPTION
TRANSMITTER INSTALLATION
The transmitter must be located as far away as possible from sources of interference (TV, PC, etc.) and
must not be located on a metal base. When placing it, pay attention to the thermal properties of the
place.
• open the rear cover of the transmitter according to Fig.1
• we will remove the protective paper from the batteries and the transmitter will be fully functional
(BT22 are batteries) a part of the package)
• snap the back cover back - the transmitter is freely portable and can be placed, for example, on a
table. We recommend using table stand, which is part of the package (assembly see Fig.3)
• when installing on the wall, make sure that no high-current lines pass around the thermostat!
DISPLAY DESCRIPTION
1. Current day (in Prog select
number of days for progra-
mming)
2. Heating on indication
3. Current temperature in the
room
4. CLOC mode indication (cu-
rrent day setting and time)
5. Setting modes programs
(PROG) and constant
(CONST) (p.5-6)
6. Auto mode (p.4)
7. Manual mode (p.4)
8. Permanent shutdown (p.4)
9. Holiday mode (p.4)
10. Signal transmission indica-
tion
11. Signal transmission ERROR
12. Wireless indication mode
13. Current time
14. Current date / required tem-
perature
15. The status bar that appears
dynamically changes accor-
ding to running process
16. Low battery indication

4
MODE SELECTION AND TRANSMISSION PARAMETER SETTINGS
The rst long press of any button activates the display backlight. Another short press of the
„MENU“ button will enter the main menu, where it is possible to select operating modes.
AUTO
The thermostat works according to the set weekly program (this
program can be changed, see PROG for a detailed description).
MANU (factory set temperature 21 ° C)
The thermostat works according to the set
temperature until the next manual change.
OFF
The thermostat is switched o until the next manual mode
change.
HOLIDAY
The thermostat maintains the set temperature until the set date.
After the set time has elapsed, it automatically returns to AUTO
mode.
Press twice on the button “ MENU “, by turning the button “ “
select AUTO mode and conrm by the button “ “.
(factory set weekly program see p.6)
Press twice on the button “ MENU “, by turning the button “ “
select MANU mode and conrm with button “ “.
(non-freezing temperature of 3 ° C is maintained - cannot be changed)
Press twice on the button “ MENU “, by turning the button “ “
select OFF mode and conrm with the button “ “.
Press twice on the button “ MENU “, by turning the button “ “
select mode and conrm with the button “ “.
Gradually set the temperature that the thermostat should main-
tain during the holiday and the return date from the holiday. By
turning the button “ “ change the values and press the button “
“ always conrm.
After setting, press the button “ “ to return to basic display.
Note: the holiday can be canceled at any time by selecting another AUTO
or MANU mode.
CLOCK SETTING
Set the current time and date.
Press twice on the button “ MENU “, by turning the button “ “
select the CLOCK mode and conrm with the button “ “.
By turning the button“ “ change the values and press the button
“ “ always conrm (set value always ashes, by the button “ “
you return to the menu.
QUICK CHANGE OF REQUIRED TEMPERATURE
Press twice on the button ““, the required temperature
ashes on the display. By turning the button “ “ change the
desired temperature and press the button “ “.
In MANU mode, the change will be permanent.
In AUTO mode, the change will last until the next change
is given program.

5
PROG
Weekly program settings with up to 6 changes per day.
CONST
Setting of control parameters.
1
2
CZECH
The hysteresis can be set from 0.1 to
6 ° C.
E.g. if the hysteresis is 1 ° C,
required temperature 20 ° C,
the thermostat switches o at 20 ° C
and closes again at 19 ° C.
Press twice on the button “ MENU “, by turning the button “ “
select PROG mode and conrm with the button “ “.
The number of days for programming ashes on the display, by
turning the button “ “ select one of the options (it is possible
to program day by day or 1-5 = Mon - Fri, 6-7 = Sat - Sun and
1-7 = Mon - Sun) and conrm with “ “. The 1st change time
ashes, by turning the button “ “ set the time and conrm
with the button “ “. Set to this time by turning the button “ “
temperature and conrm again with button“ “. The 2nd change
time appears on the LCD. Follow the same procedure as for the
rst change settings.
In this way it is possible to set up to 6 temperature changes per
day. To return to the menu, press the button “ “.
Press twice on the button “ MENU “, by turning the button “ “
select the CONST mode and conrm with “ “.
Language selection (CZ/PL/EN/DE/RU/SK).
By turning the button “ “ select the language and conrm
with “ “.
HYSTERESIS
By turning the button “ “ set the
value and conrm with the button
“ “.
After changing the preset program, check whether all the set
changes correspond to your requirements!
It is not a condition to use all six changes in one day!
(programming)
(CONSTANTS)
(from the factory is set Czech language)
(factory set 0.5 ° C)
3 KOREKCE TEPL
3
It is used to correct the temperature measured by the
thermostat. The setting must be made only after 12 hours
of operation, when the temperature of the internal sensor
stabilizes. Measure the room temperature with a thermometer,
if the temperature diers from the temperature on the
thermostat, set the correction from -5 ° C to + 5 ° C.
TEMPERATURE CORRECTION
By turning the button “ “ set the value and conrm with the
button “ “.
(factory setting 0 ° C)

[°C]
[hod]
Mo-Fri
PRESET WEEKLY PROGRAM
[°C] Sat-Sun
[hod]
6 VERZE
4 TEST RFM
Pb
LEAD FREE
RoHS
compliant
In case of warranty
and post-warranty
service, send the pro-
duct to the address
of the distributor or
manufacturer.
Here is ELEKTROBOCK CZ s.r.o. declares that the BT22 type of radio equipment complies with Directive 2014/53
/ EU.The full text of the EU Declaration of Conformity is available at the following Internet address: www.elbock.
cz
TECHNICAL PARAMETERS
ELEKTROBOCK CZ s.r.o.
Blanenská 1763
Kuřim 664 34
Tel.: [phone]
Technical support (up to 2 pm)
Mobile: [phone]
[phone]
www.elbock.cz
MADE IN CZECH REPUBLIC
6VERSION (factory reset)
Firmware version, information only.
If you press and hold (approx. 3 s) the button “ “, RESET
appears briey on the LCD and the thermostat returns to the
factory settings!
5 ZMENA CASU
5TIME CHANGE (from the factory is set YES)
If YES is selected, then SUMMER / WINTER time changes automatically
according to the calendar. You don‘t have to watch when the time
changes, the thermostat will take care of the automatic time setting
for the given period. By turning the button.“ “ set YES / NO
and conrm “ “.
4TEST
We recommend using the thermostat the rst time you use
the receiver, to verify the correct connection and signal
quality!
By turning the button “ “ the test starts and the output re-
lay is switched on / o several times (ON / OFF appears on the
LCD). By the button “ “ the next constant is displayed, to re-
turn to the main menu press the button“ “.
Receiver
Power supply 230 V/ 50 Hz
Type of communication bidirectional
Frequency 433.92 MHz
Range 300 m (free area)
35 m (built-in area)
Sensitivity < -102 dBm
Output relay, max. 8 A
Degree of protection IP20
Dimensions 57 x 130 x 85 mm
Operating temperature 0°C up to +40°C
Transmitter
Power supply 2 x1.5 V alk. AA batteries
Type of communication bidirectional
RF power < 10 mW
Frequency 433,92 MHz
Hystereze 0.1 up to 6°C
Adjustable temperature range +5°C up to 39°C
Temperature settings each 0.5°C
Measurement accuracy ± 0.5°C
Degree of protection IP20
Battery lifetime heating season
Dimensions 136,5 x 83 x 28,5 mm
Operating temperature 0°C up to +40°C