Room Control Combination; Application Examples - Siemens Synco 700 Series Basic Documentation

Introduction
Application example 1
Controller 1 and 2,
both type RMH
100/120
Building Technologies
HVAC Products
9.3

Room control combination

9.3.1

Application examples

The "Room control combination" feature can be used to link two RM... controllers
so that they operate with the same operating mode and the same room setpoint.
The two controllers must belong to the same "Geographical zone (apartm)".
If one of the two controllers is a type RMU controller, the RMU controller always
becomes the "Room controller master". If two type RMU or RMH controllers are
used in the same application, one must be defined as the master and the other as
a slave.
Radiator and underfloor heating
The "Room control combination" function can be used, for example, enables a
room to be heated with both radiator-type heating and underfloor heating.
Exchanging the room temperature and operating mode over the KNX bus permits a
joint control strategy with the following aims:
• Optimum control (e.g. boost enabled at the correct time)
• The same room operating mode for both controllers (time switch and
holiday/special day program, manual override)
• Adjustable room influence
QAW740
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The application "Radiator and underfloor heating in the same room" requires two
RMH controllers. Controller 1 is defined as the master room controller, and
Controller 2 as the slave room controller.
The first step is to set the zone addresses of the "Geographical zone (apartm)" in
the controllers.
Basic documentation: Communication via the KNX bus
Appendix
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CE1P3127en
30.08.2007