Jung BT 1791 Series User manual
Table of Contents
1 Safety instructions.............................................................................................................3
2 Device components...........................................................................................................3
3 Intended use .....................................................................................................................5
4 Product characteristics......................................................................................................5
5 Functional description .......................................................................................................6
6 Commissioning..................................................................................................................8
7 Wireless operation ..........................................................................................................10
8 Operation on the device ..................................................................................................10
9 Mounting and electrical connection.................................................................................14
10 Resetting the device to the factory setting ......................................................................15
11 Button actuation overview ...............................................................................................16
12 Technical data.................................................................................................................16
13 List of functions and parameters .....................................................................................17
14 Conformity.......................................................................................................................24
15 Warranty..........................................................................................................................24
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JUNG HOME room thermostat display
1 Safety instructions
To avoid possible damage, read and follow the following instructions:
Installation only by persons with appropriate knowledge and experience in the
following areas:
– 5 safety regulations and standards for the installation of electrical systems
– Selection of suitable tools, measuring devices, installation materials and, if ne-
cessary, personal protective equipment
– Installation of the installation material
– Connection of devices to the building installation under consideration of local
connection conditions
Improper installation endangers your own life and the lives of users of the electrical
system and there is a risk of serious damage to property, e.g. through fire. You are at
risk of personal liability for personal injury and damage to property.
Contact an electrical fitter!
Danger of electric shock. If the device exhibits any visible damage, it must not be
used any longer. Immediately disconnect device from mains by switching off all asso-
ciated circuit breakers.
Read the instructions in full, observe them and keep them for future reference.
You can find more information on JUNG HOME at www.jung.de/JUNGHOME
2 Device components
Image1: Device components
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Image2: Display and operating area
(1) System insert
(2) Design frame
(3) JUNG HOME room thermostat display
(4) Setpoint temperature, actual temperature or current time
(5) Programming menu
(6) Active mode
(7) Operating area
Icons in the display
ƘAutomatic mode is active
ƵTemperature value is regulated to comfort temperature
ƶTemperature value is regulated to ECO temperature
ƾCooling icon lights up: cooling mode, no cooling is taking place
Cooling icon flashes: cooling mode, cooling is taking place
ƿHeating icon lights up: heating mode, no heating is taking place
Heating icon flashes: heating mode, heating is taking place
ƩBluetooth symbol lit up: device is part of a Bluetooth Mesh network
Bluetooth symbol flashing: device is in pairing mode or in the update pro-
cess
Icons of the operating area (7)
ƧStep back / display current time
ƨConfirm input / display current time
ƘSwitch between manual operation and automatic operation
+ / – Increase or reduce the displayed temperatures or times / navigation in
menu
ƣCall up and terminate the programming menu
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3 Intended use
– Manual and time-controlled regulation of the room temperature
– Wireless connection to devices from the JUNG HOME system
– Operation with system insert for room temperature control
– Operation with system insert for switching
4 Product characteristics
– Commissioning and operation using JUNG HOME app on mobile end device
(smartphone or tablet) via Bluetooth
– Up to 16 time programs for automatic heating
– Manual/automatic mode switchover by means of JUNG HOME app or local
operation
– Automatic date and time update when connecting with smartphone
– Setting a comfort, ECO, cooling and frost protection temperature
– Adjustable setting range for min. and max. temperature value
– Boost function: fast heating for max. 5 minutes
– Illuminated segment display for easy reading
– Display switch-off after 2 minutes or permanent indication available
– Disabling local operation
– Integration of the load into areas (groups), main functions and scenes
– Optimised heating up (temperature is reached at the set time), can be
switched off
– Adaptation to valves (deenergised open or deenergised closed)
– Supports internal and external temperature sensor
– Temperature sensor offset (correction value for measured temperature)
– Controller output working method: pulse width modulation (PWM) or two-point
– Bluetooth SIG Mesh for fully encrypted wireless communication and repeater
function
– Updating via JUNG HOME app
Available by update in the future:
(You can find information on updates and dates at www.jung.de/JUNGHOME)
– Holiday program reduces heating costs in absence and heats the room before
returning
– Time programs with sunrise and sunset (astro timer)
Behaviour after a mains voltage failure
All settings and time programs are retained.
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If the device was not previously added to a Bluetooth Mesh network (project) by
means of the JUNG HOME app, it switches to pairing mode for two minutes after the
mains voltage returns and the Bluetooth symbol flashes on the display.
Power failure shorter than power reserve (min. 4 hours)
– Time and date are up to date
– The following time programs are performed normally again but until then the
temperature is controlled like before the power failure
Power failure longer than power reserve (min. 4 hours)
– The date and time have been reset and are updated automatically when con-
necting to the app
– Temperature control is performed like before the power failure
5 Functional description
"Heating and cooling" operating mode
Modern heat pump systems often also provide the option of cooling rooms. This func-
tion is supported by the JUNG HOME room thermostat in "heating and cooling" oper-
ating mode. In this operating mode, the temperature is permanently regulated to the
set cooling temperature during active cooling operation. There are no time programs
in cooling mode. The cooling temperature can be changed only with the temperature
parameters on the device (or with the setting in the app), not with the +/- buttons.
In combination with a room thermostat insert, cooling mode is activated by applying
the mains voltage to input terminal "C". With switch inserts, cooling mode is activated
by applying mains power to extension input "1". In general, the heat pump features a
corresponding output or a switch can be used.
Frost protection / temperature drop detection Ʒ
The frost protection temperature is the minimum temperature to which the system
can be regulated in order to avoid frost damage. In the event of a significant temper-
ature drop, e.g. after opening a window, the temperature is set to the frost protection
temperature for a maximum of 30 minutes to prevent unnecessary heating and wast-
ing energy. For this, the temperature drop detection parameter Ʒ must be activated.
Optimised heating up ƹ
Heating is started at most 4 hours before the switching time, so that the desired tem-
perature has been reached at the switching time rather than starting to heat up at
that time. The display icon ƹ flashes during the heat-up phase.
Note: Optimised heating up is designed for panel heating/radiators.
Temperature sensor offset Ƴ
If the system detects that the displayed actual temperature differs from the general
room temperature, this parameter can be used to enter a correction value in 0.5°C in-
crements. The measured actual temperature is then corrected by this offset value.
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Controller adaptation Ƽ
The control principle should be set depending on the heating system.
Two-point control: The output remains switched on until the selected setpoint temper-
ature has been exceeded by 0.5 °C. The output will not be switched on again until
the setpoint value is undercut by 0.5 °C. Since most heating systems respond very
slowly, this type of control can entail temperature overshooting.
Pulse width modulation control (Ƽ): Optimised for electrothermal valve drives,
e.g. TVA 230 NC WW: The output is not permanently actuated, but only for a time
period (pulse width) dependent on the difference between the target temperature and
the actual temperature. This method brings the actual temperature gradually closer to
the setpoint temperature. The cycle time is 15 minutes.
Valve adaptation Ƹ
This parameter is used to adapt to the electrothermal valve drives. There are drives
that are either open (deenergised open, setting NO) or closed (deenergised closed,
setting NC) when no supply voltage is applied.
Temperature sensor ƻ ƺ
The JUNG HOME room thermostat display features a built-in temperature sensor,
which is used to detect the room temperature.
In combination with a room thermostat insert, a wired remote sensor can be connec-
ted, either to measure the room temperature or to limit the maximum floor temperat-
ure.
The following settings are possible.
Internal sensor ƻ: The room temperature is measured with the internal temperature
sensor or a JUNG HOME temperature sensor (if linked).
Wired remote sensor ƺ: The room temperature is measured by the remote sensor
that can be connected only to the room thermostat insert. The internal temperature
sensor is deactivated.
Internal sensor and wired remote sensor ƻ and ƺ: The room temperature is meas-
ured with the internal temperature sensor or a JUNG HOME temperature sensor (if
linked). The floor temperature is measured by the remote sensor that can be connec-
ted only to the room thermostat insert to enable monitoring of the maximum floor tem-
perature. If the maximum floor temperature is exceeded, the floor heating is switched
off until the floor temperature has fallen below the maximum value again. This way,
an unpleasantly hot floor is avoided.
Valve protection function
The function prevents the valve from becoming stuck in long periods without heating.
For this purpose, the valve is opened and closed once a week at 11:00 am on Sat-
urdays.
The device interrupts the heating process for five minutes after 60 minutes to
prevent critical continuous operation.
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6 Commissioning
Commissioning without app
When the year is flashing on the display, you must set or confirm the data listed in
the table.
– Briefly press the – or + button to change values or toggle between YES / No.
– A long press of the – or + button accelerates value changes.
– Press the Ƨ button to go back in the menu.
– Press the ƨ button to apply the setting and call the next value. After editing
the last parameter, all values will be saved and automatic mode will be in-
voked.
The device can then be added to a project at any time with the app (see Com-
missioning with the app) and the settings can be changed in the app.
Parameters Display icon Setting option/
Default setting
Year ƛƜ From 2022 …
Month ƛƜ 01 ... 12
Day ƛƜ 01 ... 31
Hour ƛƜ 00 ... 12 ... 23
Minute ƛƜ 00 ... 59
Automatic summer time
changeover
ƛƜ Ơ YES / No
Controller output 1) ƛƜ Ƽ YES / No
Valve adaptation 2) ƛƜ Ƹ NO / NC
Optimised heating up Ʋ ƹ YES / No
Temperature drop detection Ʋ Ʒ YES / No
Temp. unit Ʋ°C / °F
Comfort temperature Ʋ
Ƶ
12 ... 21.0 ... 30 °C
ECO temperature Ʋ ƶ 11 ... 18.0 ... 25 °C
Frost protection temperature Ʋ ƽ 5 ... 7.0 ... 10 °C
Heating and cooling Ʋ ƾ YES / No
Cooling temperature 3) Ʋ ƾ5 ... 24.0 ... 30 °C
Temperature sensor Ʋ ƻ ƻ,ƺ or both
Max. floor temperature 4) Ʋ MAX 10 ... 35.0 ... 45 °C
Temperature sensor offset Ʋ Ƴ -5 ... c0.0 ... +5 °C
1) Pulse width modulated control (PWM) = YES, two-point control = No
2) NC: Valve is deenergised closed.
NO: Valve is deenergised open.
3) This parameter appears only when the device is set to "Heating and cooling".
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4) This parameter only appears if ƻ and ƺ have been set for the temperature
sensor.
Commissioning via app
Prerequisite: the JUNG HOME device has not yet been made a participant in a
Bluetooth Mesh network; otherwise reset the device to factory defaults.
Before commissioning with the JUNG HOME app, please run through the steps from
"Commissioning without the app" on the device to complete the input prompt. The
settings can then be corrected at any time with the app. Furthermore, the time and
date are automatically corrected with the app.
If a Bluetooth Mesh network (project) does not yet exist, start by creating a new pro-
ject for the first JUNG HOME device in the JUNG HOME app.
If a Bluetooth Mesh network already exists, the project file for this network must be
opened in order to pair the new device.
After switching on the mains voltage, the device is automatically in pairing
mode for two minutes.
￭ Activate pairing mode manually:
Press the ƣ button for more than 4 seconds until the icon Ʃ flashes on the
display.
Pairing mode is active for two minutes.
￭ Start the JUNG HOME app and add the device to a new or an existing project.
If several JUNG HOME devices are simultaneously in pairing mode, several
devices can be found in the app. By selecting a room thermostat in the app, its
display lighting begins to flash to allow the desired device to be identified be-
fore it is added to the project.
The symbol Ʃ on the display lights up permanently to confirm the successful
pairing.
If the symbol Ʃ flashes fast on the display, this means pairing has failed and
must be repeated.
The JUNG HOME app can then be used to link devices wirelessly and config-
ure the parameters and operation (see list of functions and parameters).
Once the commissioning of the JUNG HOME project has been completed,
hand over the project file to the owner.
Besides basic commissioning, the JUNG HOME app enables device updates and
convenient operation of further individual configuration options:
– Link: A button, binary input or motion sensor can be controlled by linking it to a
load (e.g. dimmer, socket, relay, shutter etc.). Several loads can be controlled
together by linking them to an area or scene.
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– Area: Different loads (e.g. dimmer, socket, relay, shutter etc.) can be grouped
in an area to allow them to be controlled together.
– Scene: Different loads (e.g. dimmer, socket, relay, shutter etc.) can be
grouped in a scene so that, by calling up a scene, each load assumes the load
status stored in the scene.
– Automatic function: An automatic function can be used to control the locally
connected load (no wireless link) by means of time programs. Depending on
the device type, there are further automatic functions in JUNG HOME, such as
hotel function, night light function, holiday program or switching thresholds.
7 Wireless operation
Wireless operation is done with linked JUNG HOME devices or via the JUNG HOME
App, which is also used to link the JUNG HOME devices (see 'Commissioning via
App').
8 Operation on the device
Increasing or reducing the room temperature
￭ Press the – or + button for less than 1 second.
With every brief press of a button the setpoint temperature changes by 0.5 °C.
The set value is retained in manual mode; in automatic mode it is retained until
the next switching time is reached.
In cooling mode, the – or + buttons cannot be used to change the setpoint
temperature. The cooling temperature can be changed only with the temperat-
ure parameters on the device (or with the setting in the app).
If the display is switched off or has been set to indicate the actual temperature or
time, the – or + button will have to be pressed a second time or even more before a
change in the setpoint value takes place.
￭ Press the – or + button for more than 1 second.
In heating mode, the stored setpoint temperature is retrieved:
– = ECO temperature
+ = Comfort temperature
During a detected temperature drop, it is not possible to change the setpoint
temperature for max. 30 minutes.
Automatic operation/manual operation
Pressing the Ƙ button toggles between automatic mode and manual mode.
In automatic mode, the time programs specify the next setpoint temperature in each
case. Furthermore, in automatic mode the - or + button on the device or the app can
be used to specify a new setpoint temperature, but this temperature can be set only
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until the next switching time.
In manual mode, all time programs are deactivated and the device permanently sets
the temperature to the set setpoint temperature.
If all time programs are deactivated, the device switches automatically to
manual mode. Automatic mode cannot be activated.
Image3: Setpoint temperature indication in automatic mode
The setpoint temperature and the Ƙ icon are shown in the display. Active heating
is indicated by the flashing heating icon ƿ. If heating is not active, the ƿ icon lights
up permanently. The Ƶ icon indicates that the system is being regulated to
the saved comfort temperature.
Image4: Setpoint temperature indication in manual mode
In manual mode, the ƴ icon is displayed.
Activating the boost function
With the boost function, the output is switched on for a maximum of 5 minutes
without temperature control action in order to obtain a temporary increase in temper-
ature.
The boost function can only be activated while in heating mode and if no tem-
perature drop has been detected.
￭ Press the Ƙ button for longer than 4 seconds.
The boost function is active. The display counts down from 300 seconds and
then switches back to normal mode.
Press the Ƙ button once again for more than 4seconds to terminate the boost
function prematurely.
Activating the holiday program**
The holiday program can be set and activated only with the JUNG HOME app.
If the holiday program is active, the device switches to manual mode. The display
shows the setpoint temperature for the holidays and the case symbol ǁ lights up.
The holiday program is interrupted and the temperature set at that moment is main-
tained by the controller by briefly actuating the – or + button.
The holiday program is restarted by briefly actuating the Ƙ button.
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** Available by update in the future (information on updates at www.jung.de/JUNG-
HOME)
Programming menu overview
Image5: Programming menu
Press the ƣ button to call up or exit the programming menu.
Navigate through the menu with the – or + button and confirm the selection with the
ƨ button.
ƗActivating/deactivating the button lock
ƲSetting the comfort temperature, ECO temperature and cooling temperat-
ure. Activating optimised heating up, temperature drop detection and set-
ting a temperature sensor offset value
ƛƜ Setting date, time and automatic summer time changeover
Activating/deactivating the button lock
Operation directly on the display is prevented by an active button lock. The button
lock can be activated and deactivated on the device only as long as the "Operation
lock" setting is not activated with the app.
￭ Press the ƣ button.
Ɨ flashes in the display.
￭ Press the ƨ button.
No flashes in the display.
￭ Use the - or + button to change to YES and confirm with the ƨ button.
The button lock is active and the Ɨ symbol appears in addition to the nor-
mal indication.
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Deactivate: Press and hold the – and Ƙ buttons simultaneously for more
than one second.
The operating lock can be activated alternatively with the same button combination
that is used to deactivate it or with the app.
Setting the date and time
￭ Press the ƣ button.
￭ Select ƛƜ.
￭ Confirm with the ƨ button.
The year flashes in the display.
￭ The date, time and automatic summer time changeover can be changed as
described in the chapter "Commissioning without the app".
The time is automatically updated and the manual setting is overwritten each
time a connection to the app is established.
Changing temperature parameters
￭ Press the ƣ button.
￭ Select Ʋ.
￭ Confirm with the ƨ button.
The setpoint value for the comfort temperature Ƶ flashes in the dis-
play.
￭ Change the setpoint value with the – or + button and confirm with the ƨ but-
ton.
￭ Use the same procedure to set the values for the ECO temperature ƶ and,
if "Heating and cooling" is parameterised, the cooling temperature ƾ as well.
￭ Activate/deactivate optimised heating up ƹ and temperature drop detection
Ʒ.
￭ Set the temperature sensor offset value Ƴ.
Changing control parameters
Various settings are made during initial commissioning in order to adapt the temper-
ature control to local conditions. This menu item or the app can be used at any time
to change these settings.
￭ Press ƣ and Ƨ buttons simultaneously for longer than 10 seconds.
While actuating the buttons, a countdown from 9 to 0 is displayed.
ƛ, Ƽ and YES or No appear in the display.
As described in the chapter "Commissioning without the app", the parameters can be
confirmed (ƨ button) or changed (– or + button).
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Local indication: setpoint temperature, actual temperature or time
After commissioning, the device indicates the setpoint temperature and switches off
the display after 2 minutes without any operation. Alternatively, the actual temperat-
ure or current time can be displayed.
The display can also remain permanently switched on.
￭ Press the ƨ and Ƙ buttons simultaneously for longer than 10 seconds.
A countdown runs in the display. When "0" is reached, the actual temperature
is shown in the display.
The active temperature sensor is shown in the display when the actual tem-
perature indication is selected.
ƻ or ƻ and ƺ: The measured value comes from the internal temperature
sensor or a linked JUNG HOME temperature sensor.
ƺ: The measured value comes from the wired remote sensor connected to the
system insert.
￭ Press the ƨ and Ƙ buttons simultaneously again for more than 10
seconds.
A countdown runs in the display. When "0" is reached, the current time is dis-
played.
Use the same operating step to switch back to target temperature indication.
￭ Press the ƨ and Ƨ buttons simultaneously for longer than 10 seconds to
switch the display to continuous operation.
A countdown runs in the display. When "0" is reached, the display remains
permanently.
Use the same operating step to switch the display off again after 2 minutes.
The display briefly turns dark to indicate confirmation.
In target or actual temperature indication mode, the ƨ or Ƨ button can be pressed
for more than 1 second to indicate the current time as long as the button is actuated.
In actual temperature or time indication mode, the setpoint temperature can be tem-
porarily displayed by briefly pressing the - or + button.
9 Mounting and electrical connection
Communication between the JUNG HOME devices and linked mobile end devices is
performed wirelessly within the range of the Bluetooth Mesh network.
The range of wireless signals can be affected by:
– Number, thickness, position of ceilings, walls and other objects
– Material type of these objects
– High-frequency interfering signals
Observe the following fitting instructions to maximise the range:
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– Plan the number of JUNG HOME devices and their positions to keep the num-
ber of ceilings and walls between two devices as low as possible
– If JUNG HOME devices are installed on both sides of a solid wall, they should
be positioned as close as possible to each other on the opposite sides of the
wall. This keeps the attenuation of the wireless signal through the wall as low
as possible.
– When planning, make sure that there are as few building materials and objects
as possible that strongly attenuate the wireless signal (e.g. concrete, glass,
metal, insulated walls, water tanks, pipes, mirrors, book cabinets, storage
rooms and refrigerators) on the connection line between JUNG HOME devices
– Keep a distance of at least 1 m from devices that emit high-frequency signals
(e.g. microwave, motors) or use wireless signals at 2.4 GHz (e.g. WLAN
router, baby monitor, IP cameras, wireless loudspeakers etc.)
DANGER!
Electric shock when live parts are touched.
Electric shocks can be fatal.
Always disconnect before carrying out work on the device or load. For this, switch off
all corresponding circuit breakers, secure against being switched on again and check
that there is no voltage. Cover up adjacent live parts.
Prerequisite: The system insert is mounted and connected properly (see instructions
for the relevant system insert).
￭ Fit the display cover (3) with design frame (2) on the system insert (1).
￭ Switch on mains voltage.
All display icons are briefly activated and the device must be commissioned
(commissioning).
If Err appears in the display, the cover was previously connected to another system
insert. To enable operation again, perform one of the following steps:
￭ Fit the display cover on the original system insert.
￭ Press the + and – buttons for more than four seconds.
If this is not successful, the device must be reset to the default setting. The
parameter settings and app and network connections are retained.
10 Resetting the device to the factory setting
If local operation is disabled with the "operating lock" parameter, the default setting
can be reset to only within two minutes after switching on the mains voltage.
￭ Press the Ƨ and Ƙ buttons simultaneously for 10 seconds.
A countdown runs in the display. At "0", the device is reset to the default set-
ting.
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After resetting the device to the default setting, it must be removed from the app
provided it has not already been deleted from the app.
Default setting
– The device regulates the temperature to comfort temperature
– No time programs are present
– Controller output for pulse width modulated control
– Internal temperature sensor for room temperature measurement is active
– Display switch-off after 2 minutes of inactivity without button actuation is active
11 Button actuation overview
Button actuation Length of but-
ton-press
Display What happens
– and ƘMore than one
second
Ɨ is
shown or hid-
den
Button lockout is activated or de-
activated
ƣ and ƧFor longer than
10 s
Countdown
from 9 to 0
Parameters for control can be
changed
ƨ and ƘFor longer than
10 s
Countdown
from 9 to 0
Local indication: switchover
between setpoint temperature,
actual temperature and current
time
ƨ and ƧFor longer than
10 s
Countdown
from 9 to 0
Display switch-off: switchover
between display switch-off after
two minutes or permanent indica-
tion
Ƨ and ƘFor longer than
10 s
Countdown
from 9 to 0
Device is reset to default setting
+ and –For longer than
4 s
Err Cancelling the lockout after chan-
ging from the cover or system in-
sert
ƣFor longer than
4 s
Ʃ flashes Activating coupling mode for 2
minutes
ƨ or ƧFor longer than
1 s
Current time
of day
The time is displayed for the dur-
ation of the operation
The prerequisite for actuation of the buttons is that no operating lock is set
with the app.
12 Technical data
Ambient temperature -5 ... +45 °C
Transport temperature -25 ... +70 °C
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Storage temperature -5 ... +45 °C
Relative humidity 20 ... 70 % (no moisture
condensation)
Accuracy per month ± 10 s
Power reserve min. 4 h
The time is updated with every connection to the app
Radio frequency 2.402 ... 2.480 GHz
Transmission capacity max. 10 mW, Class 1.5
Transmission range (inside building) typ. 30 m
Controller class (EU 811/2013) IV
Contribution to energy efficiency 2%
This device includes an integrated battery. At the end of its useful life, dispose
of the device together with the battery in accordance with the environmental
regulations. Do not throw device into household waste. Consult your local authorities
about environmentally friendly disposal. According to statutory provisions, the end
consumer is obligated to return the device.
13 List of functions and parameters
The JUNG HOME app can be used to configure all functions of the JUNG HOME
device and its behaviour in the Bluetooth Mesh project for the respective individual
purposes.
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Display (cover) settings Ǐ
Local indication Setpoint temperature,
actual temperature, time
Default setting: setpoint
temperature
Setpoint temperature:
The display shows the setpoint temperat-
ure.
Actual temperature:
The display shows the actual temperat-
ure. When displaying the actual temperat-
ure, the temperature sensor ƻ or ƺ is
displayed on the display.
Time:
The device displays the current time of
day.
In actual temperature or time indication
mode, the setpoint temperature can be
temporarily displayed by briefly pressing
the - or + button.
In setpoint or actual temperature indica-
tion mode, the [OK symbol] or [ESC sym-
bol] button can be pressed for more than
one second to indicate the current time as
long as the button is actuated.
Display switch-
off**
After two minutes, per-
manent indication
Default setting: after two
minutes
After two minutes:
The display remains switched on for the
illumination duration of two minutes after
the last operation and then switches off.
Permanent indication:
The display remains permanently
switched on.
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Operating lock** No lock, factory reset
lock, configuration lock
on the device, operating
lock
Default setting: no lock
Factory reset lock:
Prevents resetting on the device and
hence the removal from a project and re-
newed pairing by unauthorised persons.
This lock cannot be deactivated on the
device. After the mains voltage returns,
the factory reset lock remains deactivated
for two minutes.
Configuration lock on the device:
Prevents access to the control paramet-
ers that can be set on the display. Also
prevents usage of the button lock that can
be activated on the display. This lock
should be activated, for example, in a
hotel room to prevent the guest from un-
intentionally changing the settings or lock-
ing the display. This lock cannot be deac-
tivated on the device.
Button lock:
Prevents operation on the device. This
lock can be used, for example, to clear
the display without unintentionally chan-
ging settings. This lock can be activated/
deactivated by pressing - and Ƙ for 1
s on the device.
Operation lock
Prevents full operation on the device.
This lock can be used, for example, to re-
strict manual access temporarily. This
lock cannot be deactivated on the device.
Operation by means of the app is still
possible with all locks.
** Available by update in the future (information on updates at
www.jung.de/JUNGHOME)
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Load control settings
Settings for automatic functions ǐ
Parameters Setting options,
Default setting
Explanations
Automatic oper-
ation/manual
operation
Automatic operation,
manual operation
Default setting: auto-
matic operation
Automatic operation: In automatic mode,
the time programs specify the next set-
point temperature in each case. Further-
more, in automatic mode the - or + button
on the device or the app can be used to
specify a new setpoint temperature, but
this temperature can be set only until the
next switching time.
Manual operation: In manual mode, all
time programs are deactivated and the
device sets the temperature permanently
to the set setpoint temperature.
Time programs Temperature, time and
weekdays
A new setpoint temperature can be
switched to at defined times (weekdays
and time).
Astro timer** Off, sunrise or sunset
Default setting: Off
The astro timer shows the sunrise and
sunset times in the course of a calendar
year. Setpoint temperatures can be
changed with the position of the sun, de-
pending on the location.
Astro timer**
time shift
0 (off) ... 120 minutes
before or after sunrise
and sunset
Default setting: Off
Astro times represent the sunrise and
sunset times in the course of a calendar
year.
If you want the time program to be ex-
ecuted in the early morning before the
start of twilight or only at full brightness,
this can be implemented with the "sun-
rise" shift.
If you want the time program to be ex-
ecuted in the evening at the start of twi-
light or only at full darkness, this can be
implemented with the "sunset" shift.
Moves the temperature change time by
the set value.
Astro timer**
limit range
Off, earliest time, latest
time default setting: off
To narrow the time range of an astro
timer down to an earliest and/or latest ex-
ecution time.
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