User Manual

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Siemens RXL21.1, RXL22.1 Room controllers CM2N3877en_09
Building Technologies 2015-12-23
Cable connections
Connection terminals for signals and power supply
Solid or stranded conductors
0.25 … 2.5 mm
2
or 2 x 1.5 mm
2
Bus conne
ction terminals
(plug-in screw terminals)
Solid or stranded conductors 2 x max. 1.0 mm
2
e.g. YCYM 2x2x0.8
Single cable lengths
For field devices, see also the RXB & RXL
installation guide, CM110381
Signal inputs D1, D2
Max. 100 m with diameters ≥ 0.6 mm
Measured value input B1
Max. 100 m
AC24 V triac outputs , Y1 … Y4
Max. 100m where A ≥ 1.5 mm
2
Relay outputs Q14, Q24, Q34, Q44
Depends on load and local regulations
Interface to room unit
Max. 115 m where A= 0.75 mm
2
(including connecting cable for tool)
Cable type
4-core, twisted pair, unscreened
Bus
Max. 500 m (see Engineering, page 7)
Tool connecting cable
Max. 3 m
Housing
protection standard
Protection standard to EN 60529
IP30 with terminal cover fitted and
wall mounted without DIN rail
IP20 for all other mounting arrangements
Protection class
Suitable for use in systems with protection class I or II
Ambient conditions
Normal operation
Class 3K5 to IEC 60721-3-3
Temperature
0 ... 50 °C
Humidity
< 85 % rh
Transport
Class 2K3 to IEC 60721-3-2
Temperature
– 25 ... 65 °C
Humidity
< 95 % rh
Standards, directives
and
approvals
Product standard
EN 60730-1
Automatic electrical controls for household and
similar use
Electromagnetic compatibility (Applications)
For use in residential, commerce, light-industrial
and industrial environments
EU conformity (CE)
CM2T3877xx *)
RCM-conformity (EMC)
CA2T3834en_C1 *)
eu.bac
Meets the requirements for eu.bac certification
See product list at: http://www.eubaccert.org/ licences-by-criteria.asp
Type
License
Application
Control accuracy [K]
RXL21.1/FC-10
20860
Fancoil 2 pipes
heating
coooling
0.2
0.1
Fancoil 4 pi
pes heating
coooling
0.2
0.1
RXL22.1/FC-12
20131
Fancoil 2 pipes
heating
coooling
0.2
0.1
Fancoil 2 pipes / 2 wires
heating
coooling
0.2
0.1
Environmental compat
ibility
Product environmental declaration (contains data
on RoHS compliance, materi
als composition,
packaging, environmental benefit, disposal)
CA2E3871
*)
Dimensions
See dimension diagrams
Weight
excluding packaging
0.300 kg
including packaging
0.340 kg
*) The documents can be downloaded from
http://siemens.com/bt/download.