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Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12
CM110385en_05
Building Technologies
Select communication mode
28 Feb 2009
3.4
Heating and cooling demand zone
The building described above is equipped with Synco control equipment on the
generation side.
RMH760
RMH760
RMB795
Konnex TP1
RXB...
RXB...
RXB...
T
T
T
T
1
2
10
38
5Z
05
en
Heat requistion
Heat demand
Heat distr zone 1
Heat source
Controller 1
Controller 2
Controller 3
Controller 4
Controller 5
Controller 6
Controller 1
Controller 2
Controller 3
Controller 4
Controller 5
Controller 6
Heating circuit
fan coil
Fan coil
room A
Fan coil
room B
Fan coil
room C
DHW heating
Heat demand
Heat demand
Heat demand
Heat demand
Heat requistion
Heat distr zone
source side: 1
Heat distr zone 2
Heat distr zone 2
Heat distr zone 2
Heat distr zone 2
Setting values
In the case of a typical application, the individual RXB room controllers - when used
with the RMB central control unit - signal their heat demand directly to the primary
controller (in the above example to the RMH760).
(1) and (2) designate the numbers of the distribution zone.
•
This type of application can analogously be applied to refrigeration distribution
zones.
•
If no 2-pipe fan coil is used, heat and refrigeration demand signals are sent
simultaneously to the primary plant.
Explanation relating to
the illustration
Notes