ABB Busch-priOn Series Technical Reference Manual page 11

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Operating modes
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Standby: Standby mode lowers the
temperature below the value of comfort
mode. This saves energy and does not cool
down the room even during an extended
absence.
Comfort: Comfort mode regulates the
temperature to suit the occupants while
present. It can be called up time-controlled
or via a telegram.
Dew point: If an appropriate telegram is
received from a dew point sensor, the room
thermostat will display the corresponding
symbol and cease cooling and merely
protect against the heat.
Alarm: The alarm can be freely
parameterized. For example, it can occur
when an external temperature sensor no
longer sends values.
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Night setback: The temperature can be
reduced during the night. This saves energy
and makes the night's rest comfortable. The
heating starts again automatically the next
morning to reach a comfortable temperature
for rising.
Frost protection: If parameterized, frost
protection will ensure that the temperature
does not drop below the desired value. It is
the lowest setpoint.
Heat protection: If parameterized, heat
protection will ensure that the temperature
does not exceed the desired value. It is the
highest setpoint.
Condensate: The operation of a fan coil may
cause condensate water, which is collected
in a container. If the fan coil sends out a
telegram when the container is full, the
symbol for condensate mode is displayed.
The room thermostat immediately switches
into heat protection mode.
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KNX Technical Reference Manual | 0073-1-7388 | 11