User Manual
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Siemens QAX50, QAX51 – Flexible room unit CA2N1648en_05
Building Technologies 2015-12-23
Protection data
Housing protection
IP 30 to EN 60529
Protection class
III to EN 60730-1
Ambient conditions
Operation
IEC 721
Ambient air conditions
Class 3K5
Temperature
0 ... 50 °C
Humidity
< 85 %rh
Mechanical conditions
Class 3M2
Transport
IEC 721
Ambient air conditions
Class 2K3
Temperature
– 25 ... 70 °C
Humidity
< 95 %rh
Mechanical conditions
Class 2M2
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)
CA2T1648xx *)
UL certification (US)
UL916, http://ul.com/database
RCM-conformity (EMC)
CA2T3834en_C1 *)
Environmental
compatibility
Product environmental declaration (co
ntains
data on RoHS compliance, materials compo
-
sition, packaging, environmental benefit,
disposal)
CA2E1648
*)
Dimensions
See "Dimensions"
Color
Front plate and operator control panel
NCS S 0502-G, ≈ RAL 9003 signal white
Buttons/rocker switches for setpoint adjus
t-
ment and mode selection
RAL 7035 light grey
Weight
Excluding packaging
0.175 kg
*) The documents can be downloaded from
http://siemens.com/bt/download.
Connection terminals
The LONWORKS® bus connection terminals are removable, so that if the bus cable is
looped, the room unit can be separated from the bus without causing an open circuit.
CLA
CLB
LONWORKS® bus, Data A
L
ONWORKS® bus, Data B
CLA CLB
Terminal layout
Tool socket