User Manual

10.3.8 Prohibited combinations
You cannot directly connect a consumer and a primary controller to generation.
Example 1
T
Heat generation
Primary controller
Consumers
The universal controller receiving its conditions from "d" or "a", may not be
reconnected to the bus, as it would return its own heat demand to itself. As a result,
the plant would never again switch off.
Example 2
In the example below, controller 1 sends its heat demand to the heat distribution
zone and receives its very own demand from the same heat distribution zone.
N.Q1
Contrl.
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Siemens Switching and monitoring device RMS705B CE1P3124en
Building Technologies H/C demand, H/C changeover 01.04.2010