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Notes
Mounting, installation
and commissioning
Maintenance
Mechanical design
Technical data
Operational data
Environmental conditions
Norms and standards
Siemens
Building Technologies
The thermostat should be located where the room temperature can be acquired as
accurately as possible, without getting adversely affected by direct solar radiation or
other heat or refrigeration sources.
Mounting height is about 1.5 m above the floor.
The thermostat can be fitted to most commercially available recessed conduit boxes or
directly on the wall.
Only authorized personnel may open the unit to perform service
(Caution: AC 24...250 V!). The unit must be isolated from the mains supply before
opening.
When installing the unit, fix the baseplate first, then hook on the thermostat body and
make the electrical connections. Then, fit the cover and secure it (also refer to separate
mounting instructions).
The thermostat must be mounted on a flat wall.
The local electrical regulations must be complied with.
If there are thermostatic radiator valves in the reference room, set them to their fully
open position.
The room thermostat is maintenance-free.
The diaphragm is filled with environment-friendly gas.
The housing is made of plastic.
Switching capacity
Voltage
Current
Frequency
Switching differential SD
Setpoint setting range
Operation
Climatic conditions
Temperature
Humidity
Pollution degree
Transport / storage
Climatic conditions
Temperature
Humidity
Mechanical conditions
conformity
EC directive on EMC
Low-voltage directive (LVD)
Product standards
Automatic electrical controls for
household and similar use
Room Thermostat RAA20
AC 24...250 V
0.2...6(2) A
50 or 60 Hz
≤1 K
8...30 °C
To IEC 721-3-3
Class 3K5
0...50 °C
<95% r.h.
Normal, to EN 60730
To IEC 721-3-2
Class 2K3 / 1K3
-20...50 °C
<95% r.h.
Class 2M2
2004/108/EC
2006/95/EC
EN 60730-1 and
EN 60730-2-9
3/4
CE1N3002en
25.02.2008
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