User Manual

Application Guide
Advanced application
No. 02
Office Room – Room Automation
Synco
™
& Gamma
Functional
description
Description of functions
Individual room temperature control
The room thermostat (RDF) measures the room
temperature, controls the fan coil and calculates a
heating or cooling demand which is sent to the prima-
ry controllers via KNX bus.
Demand-dependent heat / cooling generation
Heat generation (RMH) or cooling generation (RMU)
provid heat / cooling only when at least one of the
consumers in the system calls for it (demand-
dependent control).
Weather-compensated heating control
An outside temperature sensor is connected to the
heating controller (RMH) whose flow temperature
setpoint is shifted depending on the outside tempera-
ture to adjust the amount of heat delivered.
Time schedule for each room
Time schedules for 10 rooms or room groups can be
defined in the central control unit (RMB). A time
schedule defines the time periods the room is not
occupied. During these periods of time, the operating
mode is reduced to Economy with lower temperature
setpoints. So, during the night, on weekends and
during holidays, valuable heating energy can be
saved. After these time periods, the setpoints are set
back to the Precomfort level.
Window contact
When one or more windows is/are opened in the
room, the operating mode changes automatically to
Economy. As a result, heating or cooling energy can
be saved because the system does not try to com-
pensate for energy losses.
Presence-dependent heating control
During periods of time when people are detected in
the room by the presence detector, the room tem-
perature is increased to the Comfort level. Afterwards,
it is again lowered to the Precomfort level.
Presence-dependent control of lighting
The presence detector (UP 258E21) allows switching
or controlling up to 4 lighting groups and detects the
presence of people in a square area. When a person
is detected, lighting is switched on to the required
brightness level. When everybody leaves the room,
lighting goes off. A master-slave configuration is
possible to extend the detection area.
Constant light control
Constant light control keeps the room light at a con-
stant brightness level by adding artificial light to the
natural light. The brightness of the light is automatical-
ly and continuously adjusted. Offset settings allow the
configuration of constant light control with just one
presence detector. Manual switching and dimming
are possible via wall switch. In this case, the control of
lighting is stopped and the brightness level in the room
is maintained as long as presence is detected.
Control of blinds
The weather station (AP 257/22) with integrated GPS
receiver offers efficient control to protect facades from
the sun. Up to 8 facade areas can be defined, which
are automatically controlled – independent of each
other.
Sunlight tracking control and shadow outline tracking
control are other functions which ensure maximum
use of daylight and minimum glare in the office room.
The sunlight tracking function continually adjusts the
blind slats so that they are constantly at right angles to
the sun. Shadow outline tracking controls the blinds’
position so that the shadow outline keeps a constant
distance to the desk. This optimizes the utilization of
daylight, thus reducing energy consumption for room
lighting.
In cold winter nights and when no occupancy is de-
tected in the office room, the blinds are lowered to
improve the building’s thermal insulation.
On winter days, blind control raises the blinds to let
the sunshine in und to warm up the room.
Blind protection
The weather station acquires permanently the wind
speed. When strong winds come up, the blinds are
driven up to a secure position.
Remote control and supervision
All rooms can be monitored and controlled on a Web
browser via Web server (OZW). The following param-
eters can be monitored:
· The current status of windows and doors
· The current room temperatures
· The current room temperature setpoints
· The current room operating modes
· The current status of lighting (on/off)
· The occupancy of the rooms
· The current status of the blinds
(raised/lowered)
The following parameters can be changed, if required:
· The room operating modes, individually or
in groups
· The room temperature setpoints, individual-
ly or in groups
· The time schedule for each individual room
or for room groups
· Parameters of the heating plant (operating
modes, setpoints)
· The status of lighting, individually or in
groups
· The position of the blinds, individually or in
groups