Example Of Heating And Cooling Demand Zone - Siemens RDG400KN Basic Documentation

Air distribution zone
Zone = ---, 1...31
Outside temperature
zone
Zone = fix 1
RMH760
Controller 1
T
T
T
Heat source DHW heating
Heat requistion
Heat demand
Heat distr zone 1
Setting values
Controller 1
Explanation relating to
the illustration
Notes:
Siemens
Building Technologies
This Distribution zone is for air applications (VAV, CAV). Information
related specifically to the air handling system is exchanged within this
zone (e.g. air demand). This zone also includes a Synco device to
process the information (e.g. RMU7xx).
Outside temperature received in outside temperature zone 1 will be /
can be displayed on the room thermostat when commissioned
accordingly (parameter P07 = 2).

3.10.4 Example of heating and cooling demand zone

The building is equipped with Synco controls on the generation side and RDU /
RDG thermostats on the room side.
RMH760
Controller 3
Controller 2
2
T
1
Heating circuit
fan coil
Heat demand
Heat requistion
Heat distr zone
source side: 1
Heat distr zone 2
Controller 2 Controller 3
In the case of a typical application, the individual RDU / RDG room thermostats –
when used with the RMB975 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
RDG400KN Basic documentation
Functions
RMB795 RDF...
Controller 4
T
Fan coil
room A
Heat demand
Heat distr zone 2
Controller 4
Konnex TP1
RDU... RDG...
Controller 5 Controller 6
T
V V M M
T
VAV box Fan coil
room B room C
Heat demand
Heat demand
Heat distr zone 2
Heat distr zone 2
Controller 5 Controller 6
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20 Jul 2010
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