Siemens Building Technologies CM2N3204E / 05.2001
Landis & Staefa Division 13/20
Transport as per IEC 721-3-2
Climatic conditions class 2K3
Temperature
−25...+70 °C
Humidity
<95 % r.h.
Mechanical conditions class 2M2
Electromagnetic compatibility
Emissions as per EN 50 081-1
Immunity as per EN 50 082-2
conformity as per
EMC directives 89/336/EEC
Low voltage directive 73/23/EEC
Product standards
Automatic electric controls
for household and similar use EN 60 730
Reserve in the event of a power failure 48 h (typical)
Connection terminals for wires 2 x 1.5 mm
2
or 1 x 2.5 mm
2
Weight (incl. packaging) 1.17 kg
GM
B1 B2
B4 B9 Z GE E1 E2 E3 E4 E5 E6 E7 E8
G0 Y10 G GY20 GY30 UP UN
AZI65...
F91 Q14 Q24 Q34 Q44
3204G01
Q13 Q33
G Operating voltage, AC 24 V (system potential)
G0 Operating voltage (system neutral)
M Measuring neutral
B1 Measuring signal from the room or extract air temperature sensor (LG-Ni1000 Ω / DC 0...10 V)
B2 Measuring signal from the supply air temperature sensor (LG-Ni1000 Ω / DC 0...10 V)
B4 Measuring signal from the outside sensor (LG-Ni1000 Ω / DC 0...10 V)
B9 Measuring signal from the frost sensor (LG-Ni1000 Ω / DC 0...10 V)
Z Measuring signal from peripheral devices (LG-Ni1000 Ω / DC 0...10 V)
Y10 Control signal output for heating (DC 0...10 V)
Y20 Control signal output for cooling 1) (DC 0...10 V)
Y30 Control signal output for heat recovery (DC 0...10 V)
GE Signal voltage neutral for digital inputs E1 through E8
E1 Digital status input "Fire/smoke"
E2 Digital status input "Air flow signal"
E3 Digital status input "Overload hot water circulator or overtemperature electric heater battery"
E4 Digital status input "Overload of chiller or chilled water circulator"
E5 Digital status input "Overload fan"
E6 Digital status input, not used
E7 Digital input "Control input 1"
E8 Digital input "Closed input 2"
F91 Common fault status output (AC 24 V) with priority "A" and "b" or "A" or "b" (can be coded for
this output)
Q13/Q14 Potential-free relay contact output, to switch circulator or electric heater battery
Q13/Q24 Potential-free relay contact output for compressor, dx-cooling or chilled water circulator 1)
Q33/Q34 Potential-free relay contact output, to switch fan speed I
Q33/Q44 Potential-free relay contact output, to switch fan speed II
UP, UN Connections (2...3) for communication
Note: LG-Ni1000 Ω sensors = L&S standard
Control signal outputs Y20 and Q13/Q24 are available at the same time
Standards
Miscellaneous
Connection diagram
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