Siemens RDX33.21 - Connection Terminals; Connection Diagrams

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Siemens Room temperature controllers with LCD N3075en
Building Technologies 17.04.2009
Low-voltage directive
Product standards
Automatic electrical controls for household
and similar use
Special requirements for temperature-
dependent controls
EN 60730 – 1
EN 60730 – 2 - 9
Electromagnetic compatibility
Emissions
Immunity
IEC/EN 61000-6-3
IEC/EN 61000-6-2
Devices of safety class II to EN 60730
Degree of pollution Normal
Degree of protection of housing IP30 to EN 60529
Connection terminals for Solid wires or prepared stranded
wires 2 x 0.4…1.5 mm
2
or
1 x 2.5 mm
2
Weight 0.28 kg
Color of housing front White, NCS S 0502-G (RAL 9003)
Connection terminals
RDX33.21
Q13 Q14
Q22
Q13- Q14 Control output (NO), compressor
Q21-Q22 Control output (NO), H/C changeover
RDX43.2
L
N Q13 Q14
Q33 Q34
Q22
L, N Operating voltage AC 230 V
Q13-Q14 Control output (NO), compressor
Q21-Q22 Control output (NO), H/C changeover for heating
Q21-Q24 Control output (NO), H/C changeover for cooling
Q33-Q34 Control output (NO), auxiliary electric heater
Connection diagrams
Use: H/C with RDX33.21 H/C plus auxiliary electric heating with RDX43.2
Heat pump
N1
Q13
Q14
Q21
Q22
DC 3 V
*
Q34
N2
L
L
N
N
AC 230 V
Q13
Q33
Q14
Q21 Q22 Q24
*
H/C with
actuating devices
N1
Q13
Q14
Lx
N
Q21
Q22
AC 24... 230 V
DC 3 V
R1
*
L
N
Q33Q13
L
N
Q21
AC 230 V
N2
E1
Q14
Q22 Q24 Q34
*
General