User Manual

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Applications: Presence-dependent room temperature and scene control
Window contact S 290
Valve actuator, electromotive
AP 562/02
Room automation box AP 641 with
2 universal dimmers RS 525/23
and 2 shutter/blind actuators
Presence detector UP 258D11
Room operator unit UP 227
Energy-efficient and presence-dependent room automation
The presence detector ensures independent control of three different
disciplines: room temperature control, lighting and blinds. Room
operating mode, illuminance and blinds are switched to automatic
operation, depending on presence. Using the room operator unit
UP 227, the functions can be manually overridden at any time during
hours of presence.
Optimum room temperature control
Heating or cooling costs drop considerably if office spaces are heated
or cooled only during the times of occupancy. For example, if, during
the heating season, the room temperature is lowered by 1 °C, heating
cost savings amount to 6%.
More straightforward operation thanks to scene control
Using scene control, several disciplines are activated simultaneously,
be it manually by pressing keys on the room operator unit or auto-
matically via the scheduler program. For the period of time an office
space is used, the room temperature is set, blinds and presentation
screen are lowered and the lights are dimmed, for example – all at
the same time.
Installation note: Ideal location for energy-efficient operation
To ensure optimum acquisition of the room temperature and
thus energy-efficient operation and enhanced room comfort,
the following rules should be followed when mounting
room operator unit UP 227:
– about 1.5 m above the floor at a distance of at least 50 cm
from the next door.
– not on outside walls, not in niches and not behind curtains.
– not in the vicinity of heat sources, such as lamps.
– not exposed to direct solar irradiance.
Important: When using conduits, it must be made certain that
the end of the conduit by the sensor is sealed to ensure that drafts
will have no impact on the acquisition of room temperature.
M
M
230 V AC
KNX
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Application examples
The room operator unit UP 227 is capable of controlling jointly via KNX
the room-related HVAC, lighting and shading systems, cutting thermal and
electrical energy usage per room.
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