User Manual

Application Guide
High-end application
No. 2
Classroom
Synco™ living &
Gamma
45
Functional
description
Description of functions
Individual room temperature control
The room unit (QMX3) measures and controls the
room temperature and sends the control signal peri-
odically to the switching actuator (N 562). The win-
dow/door switches (S 290 + UP 220) send win-
dow/door status information to the room unit (QMX3).
The central control unit (RMB) manages the time
schedules regarding operating modes and setpoints
for each room or room group individually and sends
control signals to the switching actuator.
Demand-dependent heat generation
When a room needs heat, then the room unit sends a
heat request (control signal) to the central control unit
which evaluates all received
heat requests from the
rooms and forwards the result periodically to the
heating controller.
Heat generation (RMH) provides heat only when at
least one of the consumers in the system calls for it
(demand-dependent control).
Weather-compensated heating control
The weather station (AP 257/22) sends the outside
temperature signal to the heating controller (RMH)
whose flow temperature setpoint is shifted depending
on the outside temperature to adjust the amount of
heat delivered.
Time schedule for each room
A time schedule defines the time periods the room is
not occupied. During these periods of time, the oper-
ating mode is reduced to Economy with lower tem-
perature 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.
Air quality monitoring
The air quality sensor measures the CO
2
concentra-
tion in the room air. The background-lit symbol on the
front side of the device informs on the current level of
CO
2
in the room. The colors green / orange / red of
the background lighting indicate good / mediocre /
poor air quality.
Fensterkontakt
Wird ein Fenster oder mehrere in einem Raum geöff-
net, wechselt die Betriebsart automatisch auf Econo-
my. Dies bedeutet, dass Heiz- oder Kühlenergie
eingespart werden kann, da das System nicht ver-
sucht, Energieverluste zu kompensieren.
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 its detection 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 classroom.
The sunlight tracking function continually adjusts the
blind slats so that they are constantly at right angles
to the sun radiation. Shadow outline tracking controls
the blinds’ position so that the shadow outline keeps a
constant distance to the window. 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 classroom, 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 status of lighting (on/off)
· The status of the blinds (raised/lowered)