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.
JUNG HOME room thermostat display
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