User Manual

Application Guide
High-end application
No. 07
Conference Room – Room Automation
Synco
™
& Gamma
43
Functional
description
Description of functions
Individual room temperature The room thermostat
(RDU / RDG) acquires the room temperature and
controls the valve actuator STA23 of the floor heating.
If there is a heating / cooling demand in the room,
then the room thermostat sends a heating demand to
the heating controller and an air demand to the VAV
controller to get more warm / cold air.
Air quality control
The CO
2
sensor (AQR) measures the air quality and
sends the value to the air handling controller which
controls the amount of fresh air.
Demand-dependent air supply
The primary air handling controller (RMU) controls the
supply air temperature and the air volume according
to the heating / cooling demand from the room ther-
mostat and the air volume demand from the VAV
controller. The pressure setpoints in the air system
are shifted according to the air volume demand from
the rooms.
Demand-dependent heat / cooling generation
Heat generation (RMH) or cooling generation (RMU)
provid heat / cooling only when the primary air han-
dling controller calls for it (demand-dependent con-
trol).
Weather-compensated heating control
The weather station (AP 257/22) sends the outside
temperature signal to the heating controller (RMH)
whose flow temperature setpoint i
s shifted depending
on the outside temperature 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.
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.
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.
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.
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 conference
room. The sunlight tracking function continually ad-
justs 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 consump-
tion for room lighting.
In cold winter nights and when no occupancy is de-
tected in the conference 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, fail-
ures, operating hours)
· The occupancy of the rooms
· The current status of the blinds
(raised/lowered)