Table of Contents
Advertisement
Room temperature controller | Room temperature measurement
–
The temperature sensor should not be used in multiple combinations, espe-
cially together with flush-mounted dimmers.
–
Do not install the temperature sensor in the area of large electrical consumers
(avoid heat influences).
–
The push button sensor should not be installed in the vicinity of radiators or
cooling systems.
–
The temperature sensor should not be exposed to direct sun.
–
The installation of sensors on the inside of an outside wall might have a negat-
ive impact on the temperature measurement.
–
Temperature sensors should be installed at least 30 cm away from doors, win-
dows or ventilation devices and at least 1.5 m above the floor.
Temperature detection and measured value formation
The "Temperature detection of the room controller by" parameter in the parameter
node "Room temperature controller -> RTCx - General -> RTCx - Room temperature
measurement" specifies how many external KNX sensors detect the room temperat-
ure. The following settings are possible for temperature detection...
–
"Temperature input 1"
The actual temperature is determined solely via an external temperature
value. In this case, the KNX temperature sensor is connected to the controller
via the 2-byte object "Room temperature - Measured value 1".
The controller can request the current temperature value cyclically. For this
purpose, the parameter "Cyclical polling of the temperature values" must be
set to a value > "0". The request interval can be configured within the limits of
1 minute to 255 minutes.
After a device reset, the controller will first wait for a valid temperature tele-
gram until the feedback control starts and a command value, if applicable, is
output.
–
"Temperature input 1 and 2"
The actual temperature is determined using two external temperature values.
The selected temperature sources are combined. In this case, the KNX tem-
perature sensors are connected to the controller via the two
2-byte objects "Room temperature - Measured value 1" and
"Room temperature - Measured value 2".
When evaluating, the real actual temperature is made up of the two temperat-
ure values provided. The weighting of the temperature values is defined by the
parameter "Weighting of temperature inputs 1 and 2". Depending on the differ-
ent locations of the sensors or non-uniform heat distribution inside the room, it
is thus possible to adjust the actual temperature measurement. Temperature
sensors that are subject to negative external influences (for example, unfa-
vourable location because of exposure to sun or radiator or door/window in the
immediate vicinity) are often weighted less heavily.
Example: A temperature sensor has been installed next to the entrance door.
An additional temperature sensor has been mounted on an inner wall in the
middle of the room below the ceiling.
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
Page 182 of 257
Advertisement
Table of Contents
