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instabus KNX/EIB System
Sensor
2
Room temperature controller functions
2.1
Operating modes
The room temperature controller features several operating modes. By selecting theses modes it is possible to
activate different temperature setpoints that, for example, depend on the presence of a person, the status of the
heating or cooling system, the time of day or day of week.
• Comfort mode:
The comfort mode should be activated if people are present in the room that requires the room temperature to be
adjusted to a comfortable and appropriate value. The switch-over into this operating mode can also take place via
presence control.
The comfort mode when activated is signalled by LED B ( ).
• Standby mode
If a room is not in use during the day as people are absent, the standby mode may be activated. This will set the
room temperature to a standby value thus saving heating or cooling energy in the process.
The standby mode when activated is signalled by LED C (
• Night mode
During the night hours or during a longer absence it is often best to adjust the room temperature to cooler
temperatures for heating systems (e.g. in bedrooms). In this case cooling systems can be adjusted to higher
temperature values, if climate control is not required (e.g. in offices). For this purpose the night mode can be
activated.
The night mode when activated is signalled by LED D ( ).
• Frost / heat protection mode
Frost protection is necessary, if, for example, the room temperature must not fall below critical values when the
window is open. Heat protection might be necessary, if the temperature in a mostly warm environment becomes
too high due to external influences.
In these cases a freezing or overheating of the room can be prevented by activating the frost/heat protection
depending on the adjusted "heating" or "cooling" control option by specifying an individual temperature setpoint.
A frost/heat protection when activated is signalled by LED H ( ).
• Comfort mode extension (temporary comfort mode)
The comfort mode extension is to be activated from the night mode or the frost/heat protection (not triggered by
the "window state" object) and can be used to adjust the room temperature to the comfort temperature for a
certain amount of time, if, for example the room 'is used' during the night as well. The extension is activated
exclusively by a parameterized presence key. The comfort mode extension is automatically deactivated after a
settable time has elapsed or by pressing the presence key again or via receiving a presence object value = "0".
The extension cannot be retriggered.
An individual temperature setpoint can be preset for each "heating" or "cooling" control option.
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Subject to change without notice
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