Siemens Synco 700 Series - Room Control Combination

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Building Technologies Boiler sequence controller RMK770 CE1P3132en
HVAC Products 10 Heating circuit control 23.04.2009
Variant Effect Diagram
2 room sensors or
1 KNX room sensor and
1 room unit QAW740*
When communication is
activated, the heating circuit
receives the room temperature
of the same geographical
zone.
The heating circuit operates
with the average of the 2
temperature signals received.
TT
Synco
1 room sensor directly
connected and 1 KNX
room sensor (or 1 room
unit QAW740)
When communication is
activated, the heating circuit
receives the room temperature
of the same geographical
zone.
The heating circuit operates
with the average of the 2
temperature signals received.
3140Z11
T
T Synco
* 2 QAW740 room units are not permitted! Operation in the room is only possible on one unit
In the case of a room control combination with a ventilation system, the correct location
of the sensors on the ventilation side must be observed.
Mounting the sensor for acquiring the room temperature in the extract air in combina-
tion with a heating circuit is not permitted!
The sensor for room temperature control of the ventilation system must be located in
the room. If this is not observed, the heating circuit operates with the wrong tempera-
ture when the ventilation plant is shut down!
10.10.3 Room control combination
The heating circuit of the RMK770 controller can be combined with a heating circuit of
some other controller. This combination of 2 room control systems is required, for
example, when 1 heating circuit is used for underfloor heating and 1 for radiators.
Another example is the combination of ventilation and heating in a room (e.g. in a hall).
If only the time program shall be jointly used, this can be done without a room control
combination. In that case, the time switch of the heating circuit is to be operated as the
master or slave. For more detailed information, refer to section 5.1 “Time switch”.
In the event of a power failure, the operating mode of the slave is on Comfort until the
master sends another signal via bus.
For more detailed information about ventilation, refer to the Basic Documentation on the
RMU7xxB (P3150).
Main menu > Commissioning > Extra configuration > Heating circuit
Operating line Range Factory setting
Room control combination Master / Slave external
setpoint / Slave internal
setpoint
Master
There are no settings required.
The room operating mode selector and the setpoints (if external) must be set on the
master.
Main menu > Commissioning > Communication > Room heating circuit
Operating line Range Factory setting
Geographical zone (apartment) ---- / 1…126 ----
Communication is described in subsection 5.1.1 “Communication”.
Important
Note
Behavior after a
power failure
Extra configuration
Settings
Communication