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Siemens
RDG400KN,RGD405KN Basic documentation
CE1P3192en
Building Technologies
2017-02-17
3.6.10 Applications with external AQR sensor or QMX room
operator unit (RDG405KN)
The equipment combination is for use in commercial buildings, offices, schools,
museums, shops, etc.
AQR/QMX sensor
Advantages of equipment combination
LTE-Mode
S-Mode
a) Sensor can be installed in the optimal place for temperature acquisition
b)
Unauthorized people cannot change settings on sensors installed in the room
c)
The HVAC equipment and measurement point (T, CO
2
) are far apart (e.g. in
large spaces). Installing the thermostat near the equipment and the sensor on
the measurement point reduces wiring costs and increases control accuracy
d)
Several RDG.. room thermostats can operate with one room temperature
and/or CO
2
value (in large spaces)
x
e)
AQR/QMX sensor is more appropriate for interior design
With sensor AQR25.. or QMX3..0
The AQR25.. and QMX3.P.. sensors can deliver room temperature and CO
2
values
to the RDG405KN.
The RDG405KN and the sensors use LTE-Mode (KNX) communication. To
exchange information (room temperature or CO
2
values), both devices must have
the same geographical zone, apartment and room (A.R.1, where "A" is the value of
P82 and "R" is the value of P83 of the RDG405KN). This equipment combination
works on a 1-to-1 basis. Values cannot be delivered from the sensor to several
RDG405KN room thermostats.
For applications in S-Mode, the objects for room temperature of the RDG405KN
must be set to
Receive
in ETS. The thermostat then works with the values
acquired by the sensor. Default setting
Transmit
indicates that the RDG405KN
provides the local room temperature via bus. One sensor can deliver data to
several thermostats.
For commissioning with ACS V10 software: Set the same geographical zone on the
RDG.. and the Siemens KNX sensor AQR..
∂
In the corresponding geographical/time switch zone, the RDG405KN is
shown under "Slaves"
∂
The IAQ KNX sensor (e.g. AQR2570) must be assigned as "Networked
devices" of the RDG405KN
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