User Manual

Standard controllers
Communicating HVAC controllers
Application examples RMU..
5-29
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Siemens Switzerland Ltd
Building Technologies Division
5
Room-supply air temperature cascade and humidity control RMU720B..
ADDP01 U2B HQ
V 7-day time switch with holiday / special day program
V Control of a 2-speed fan
V Control of the supply air temperature via the heat recovery system and the
heating coil valve in sequence
V Control of room humidity via the air humidifier (on command and modulating
positioning signal)
V Frost protection with frost protection monitor
V Supervision of the supply and extract air fans with differential pressure sen-
sors
V Supervision of the supply and extract air filters with differential pressure sen-
sors
V Limitation of supply air humidity
The indicated energy efficiency classification can be attained only if the fol-
lowing functions are implemented:
V Air flow control at the room level‚ demand control (Air quality sensor must be
integrated as an additional feature)
V Air flow control at the air handler level‚ automatic flow or pressure control
with or without pressure reset (Automatic fan step switching corresponds to
Efficiency Class B / Step 2 must be switched based on air quality)
V Heat exchanger defrost control (Exhaust air temperature sensor required)
V With heat exchanger overheating control
V Supply Temperature control‚ variable set point with load dependant compen-
sation
V Room or exhaust air humidity control
To fulfill the classification‚ the plant must be equipped with
all indicated functions.
Application examples RMU730B..
These are only a few examples of many applications that can be done with the
with Synco™700 controllers: RMU730B..
More Synco™700 applications are described in “HIT“ (the HVAC project engineer-
ing tool with a library of over 300 pre-configured HVAC-applications) and in the
RMU730B.. data sheet.
The evaluation of the energy efficiency classification is based on EN15232:2012.
For a determination of the energy efficiency classification of the application‚
please use the "HIT Tool".
Further details are available in the manual "Building automation - impact on
energy efficiency" in our HIT Online.
www.siemens.com/hit