Catalog

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Siemens Switzerland Ltd http://www.siemens.com/buildingtechnologies-productcatalog 2015
Building Technologies Division
4
Room automation
Overview and selection tools
Room Automation with LON
Fields of application
The scope of RXC is defined by the pre-programmed application software. The following pages provide an overview of the options
and the corresponding devices, divided into different areas of application. The devices are supplied pre-programmed with the ap-
plication required. Other applications can be loaded using the RXT10.5 commissioning and service tool, which contains the entire
applications library.
Due to the fact that the applications are largely predefined, engineering simply involves the definition of a small number of parame-
ters, e. g.:
n PWM or 3-point control of the valves and actuators
n Temperature setpoints
n Manual or automatic fan control
Basic applications
With the basic application software every RXC controller can also be used as an I/O module. The RXT10.5 commissioning and service tool
can be used to observe the signals to the inputs or to process them further at the automation level or at the management level. Direct
control of the controller outputs is also possible. Controllers ordered without reference to a specific application will be supplied factory-
programmed with the appropriate basic application.
Application Description
00010 Basic application for RXC10.5
00020 Basic application for RXC20.5
00021 Basic application for RXC21.5
00022 Basic application for RXC22.5
00030 Basic application for RXC30.5
00031 Basic application for RXC31.5
00032 Basic application for RXC32.5
Fan coil systems
Application Description Devices
FNC02 2-pipe system with changeover RXC20.5 / RXC21.5
FNC03 2-pipe system with changeover and electric reheater
RXC20.5 / RXC21.5 /
RXC22.5
FNC04 4-pipe system RXC20.5 / RXC21.5
FNC08 4-pipe system with supply air temperature limitation RXC21.5
FNC10 2-pipe system with changeover and outside air damper RXC21.5
FNC12 4-pipe system with outside air damper RXC21.5
FNC18 2-pipe system (cooling) and radiator RXC20.5 / RXC21.5
FNC20 4-pipe system with air-side control RXC20.5 / RXC21.5
FNC02/03/04/08 2-pipe/4-pipe system with EC fan-coil support RXC39.5
Common functions
n Window contact, occupancy detector, 4 operating modes
n Manual fan control with room unit
n Automatic fan control (RXC20.5 single-speed, RXC21.5, RXC21.5 three-speed), 0..10 V (continious speed with RXC39.5 only)
n Options for 2-pipe systems: heating only, cooling only or change-over, via LONWORKS bus
Heated/chilled ceilings and radiators
Application Description Devices
CLC01 Chilled ceiling RXC20.5 / RXC10.5
CLC02 Chilled ceiling and radiator RXC20.5 / RXC10.5
CLC03 Chilled ceiling and radiator RXC20.5
CLC06
Chilled/heated ceiling, 2-pipe system with changeover via
L
ONWORKS bus
RXC20.5 / RXC10.5
CLC07
Chilled/heated ceiling, 2-pipe system with changeover via
L
ONWORKS bus and radiator
RXC20.5
CLC08
Chilled/heated ceiling, 4-pipe system and 2 PWM valves
for changeover
RXC21.5
CLC09
Divided chilled/heated ceiling: Cooling only and cooling/
heating with changeover via L
ONWORKS bus
RXC20.5 / RXC21.5
RAD01 LPHW radiators RXC20.5 / RXC10.5
RAD03 Electric radiators RXC20.5 / RXC10.5
Common functions
n Window contact, occupancy detector, 4 operating modes
n Dewpoint sensor