Brochure

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Without DRT limitation
With DRT limitation
Shaving peak loads!
Volumetric flow
(primary side)
Night setback Heating mode
Energy efficiency thanks to
patented DRT limitation
unused heat from being carried
through the pipework and energy costs
are reduced.
The DRT function is an important pre-
requisite for economical and ecological
operation of district heating networks,
optimization of plant and thus shorter
investment payback times.
This patented function is a milestone in
control technology and offers excellent
opportunities in energy management.
The return temperature is an important
criterion for ensuring economical opera-
tion of district heating networks. Heat
transfer capacity, pumping power, heat
losses and efficiency depend on it. To
ensure that the return temperature in
the network is kept as low as possible,
the district heating controllers supplied
by Siemens acquire the difference
between the primary and the secondary
return temperature and limit it. Peak
loads are shaved, and oversized plants
are only supplied with the volumetric
flow they can handle. This prevents
■ Innovation
Siemens invests a great deal in both
manpower and research and develop-
ment. This results in a steady stream
of new insights, technologies and in-
ventions that enable us to improve the
reliability of our products and systems,
ensuring the securest products and
making our systems even more simple
and convenient to operate.
■ Reliability
With a history of over hundred years, if
you need an established, reliable partner,
you are in the very best of hands with
Siemens. System expansions and up-
grades can be continuously made over
a period of years, which ensures your
investment for the future.
■ Comfort
Siemens products and solutions ensure
comfort in your working and living
environments. Today, tomorrow and for
decades to come. That’s why numerous
customers around the world rely on
Siemens.
■ Energy and ecological efficiency
Siemens helps save energy, protect our
resources and reduce harmful emissions.
Welcome to the world of
innovative thinking
Every morning during the heating up phase, the volumetric
flow on the primary side is throttled in a way that optimum
usage of heat supplies is ensured.