User Manual

Control concept
Desigo room automation
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● Controls a scene as per the predefined values
● Changes the predefined values
Both are carried out by the room user.
Thermal room load analysis
Room coordination supports room temperature control via blinds control. The various HVAC data is
analyzed to determine the thermal room load and the associated signal definition for blinds control:
● Load if energy must be supplied to the room via the blinds position
● Unload if no additional energy must be supplied to the room via the blinds position
Blinds control determines the optimal blinds position in dependence of room occupancy and solar position
(thermal radiation and glare).
Green Leaf (RoomOptiControl)
Manual room user manipulations (e.g., manual lighting and shading commands, or manual changes to the
room temperature setpoint) can result in inefficient energy operation. Each zone and each technical
installation is checked for inefficient definitions to be pointed out to the room user. Room coordination then
summarizes the results and visualizes them on the room operator unit. The room user can then reset all
manual entries (which lead to inefficient plant operation) by one single pressure of a button.
Room common alarm
One common alarm is set up for each room to keep down the number of set up system alarms. To this end,
room coordination acquires status information (normal/alarm) for each zone and each technical
installation, and determines the room-wide alarm state as a common alarm.
HVAC room control
HVAC plants and their HVAC devices in the room influence the climate in closed rooms.
HVAC plants in rooms are used to:
● Maintain a temperature range suitable for building occupancy
● Control other control variables such as humidity and air quality
● Efficiently operate HVAC plants in the room
HVAC plants in the room are grouped into plant families, radiators (right), Fan coil units (center), VAV
(left), differentiated by mechanical design and functioning:
The members of the related HVAC family differ only marginally:
HVAC supply chain requirements