User Manual

19
Time schedules for building use and room occupancy
One option which is frequently employed at the automation level or in the Desigo
Insight management station is the use of central Building use and Room occupancy
time schedules. These make it possible to optimize the supply of energy to match
varying periods of room occupancy.
The Building occupancy time schedule determines the overall period of time during
which the building is in use. Outside this period, the plant (e.g. HVAC primary plant)
remains available, but at reduced output.
The Room occupancy time schedule determines the occupancy times in individual
rooms or groups of rooms. This enables individual tenants of the building, for example,
to define their own occupancy hours.
Central and local control of operating modes
The diagram below shows an example of how the central time schedules (Building use
and Room occupancy) interact with the local
/ Auto control button on the room unit
(operating as an occupancy function in this case).
Local control with an occupancy sensor is also possible.
Auto
01533den
05.00
07.00
Pre-Comfort (Stand-by)
2)
Auto
4)
t
Auto
17.00
22.00
Auto
Room operating mode
Comfort
1)
Economy
3)
Local /Auto
Central: Room occupancy
Central: Building use
Building in use
Room occupancy
Example of the routines over a typical day:
1) Comfort The room temperature is within the comfort range.
2) PreComfort (Standby) The heating or cooling output is slightly reduced
(during the temporary absence of the room occupant)
3) Economy The heating or cooling output is reduced significantly.
4) Outside the times defined by the Building use program, local operation has no influence on the operating mode.