User Manual

Functions
Control sequences
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4.7.11 Applications with external AQR sensor or QMX room
operator unit
The equipment combination is for use in commercial buildings, offices, schools,
museums, shops, and so on.
Advantages of equipment combination AQR/QMX sensor
LTE-Mode S-Mode
a)
Sensor can be installed in the optimal place for
temperature and humidity measurement.
✓ ✓
b)
Unauthorized personal cannot change settings on
sensors installed in the room.
✓ ✓
c)
The HVAC equipment and measurement point (T,
r.h.) are far apart (that is, 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 RDG2..KN room thermostats can operate
with one room temperature and/or humidity value (in
large spaces).
✕ ✓
e)
AQR/QMX sensor is more appropriate for interior
design.
✓ ✓
Sensor AQR25..., QMX3.P30 or QMX3.P70 delivers relative humidity and room
temperature values to the RDG2..KN.
The RDG2..KN and the sensors use LTE-Mode (KNX) communication. To
exchange information (humidity or room temperature), both units must have the
same geographic zone apartment and room (A.R.1, where "A" is the value of P901
and "R" is the value of P902 of the RDG2..KN).
This equipment combination works on a 1-to-1 basis. Values cannot be provided
from the sensor to several RDG2..KN room thermostats.
For applications in S-Mode, set the objects for humidity and room temperature of
the RDG2..KN to Receive in ETS. The thermostat then works with the values
acquired by the sensor. Default setting Transmit indicates that the RDG2..KN
provides the local room temperature and relative humidity over the bus. One
sensor can deliver data to several thermostats.
4.7.12 Setpoints and sequences
On changeover applications, the Comfort setpoints for heating and cooling
sequence are the same (w).
On 2-pipe applications with electric heater, the Comfort setpoint is either at the first
heating sequence (in heating mode) or at the cooling sequence (in cooling mode).
On 2-pipe applications with radiator, the Comfort setpoint is either at the radiator
sequence (in heating mode) or at the cooling sequence (in cooling mode).
The setpoints for Economy and Protection mode are below the Comfort setpoints
(for heating) and above the Comfort setpoints (for cooling).
They can be set via P019, P020 (Economy mode) and P100, P101 (Protection
mode).
With sensor
AQR25.. or QMX3..0
2-pipe applications