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Application Manual
Restaurant area – room automation
Room HVAC control
YV
V
V
TB0001 DG4 HQ
The temperature is acquired in every room and controlled via the supply air and the floor heating system. The
heat/cooling energy requests from all rooms are forwarded to the heating/refrigeration plant and the individual VAV
controllers. The ventilation controller controls the supply air temperature and the amount of air demanded by the
VAV controller. The heating plant is controlled depending on the heat request from the ventilation controller and the
room thermostats plus the outside temperature. The refrigeration plant is controlled depending on the cooling ener-
gy request from the ventilation controller. Nonoccupancy times are detected by presence detectors and can be set
for the night and every room in a time program. During these periods of time, the room temperatures are automati-
cally lowered. Open windows are automatically detected and the temperature of these rooms is lowered to save
heating energy.
Lighting control
Presence detectors (hotel card switches) help save energy by automatically switching the lighting off when the room
is not occupied. A brightness sensor incorporated in the presence detector helps when switching and dimming
lights, thus ensuring that the room is always optimally illuminated, using as little as possible artificial light.
T
T
(B1)
(B1)
M
M
T
N1
VAV plant
·
Heating or cooling
·
DC 0...10 V or 3-position control of VAV boxes or
damper actuators
·
Automatic or manual changeover of heating/cooling
mode
·
Automatic changeover of heating/cooling mode via
supply air temperature (via KNX, only RDG400KN)
·
Multifunctional inputs for keycard contact, external sen-
sor, etc.
Nr. 09
Synco™
& Gamma
49
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