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Siemens  Master room unit QAX850    CE1N2722en 
Building Technologies     28.08.2007 
 
Electromagnetic compatibility 
Immunity  domestic section, light industry 
Emissions  domestic section, light industry 
 
EN 61 000-6-1 
EN 61 000-6-3 
   
 
-conformity 
EMC directive 
Low-voltage directive 
 
89/336/EEC 
73/23/EEC 
 
N474
 conformity to  
Australian EMC framework 
Radio interference emission Standard 
 
Radio Communication Act 1992 
AS/NZS 4251.1 
   
Measuring range  0…49 °C 
Room temperature 
measurement 
Setpoint range  5…35 °C 
 
Accuracy at 20 °C  max. ±0.5 K 
 
Temperature calibration range  max. ±3.0 K in increments of 0.5 K 
 
Room temperature display resolution  0.5 K 
   
Weight 
Excluding packaging  approx. 0.1 kg 
Notes  
•  The products may only be used in building services plant and applications as 
described above. 
•  When using the products, all requirements specified under ”Technical data” must be 
observed. 
•  Local regulations for electrical installations must be complied with. 
Connection diagram 
N1
A1
HB+
HB-
HB+
HB-
2723A01
 
A1  QAX850 master room unit 
N2 RRV… controller  
 
Product liability