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Siemens
Room Thermostat RAA20
CE1N3002en
Building Technologies
25.02.2008
Y
T[°C]
ON
OFF
W
SD
30
10
D
0
1
Y
T[°C]
ON
OFF
SD
30
10
D
0
2
T Room
temperature
SD Switching
differential
w Room
temperature
setpoint
Y1
Output signal "Heating"
Y2
Output signal "Cooling"
Type summary
Functionality Product
no.
(ASN)
Room thermostat for heating or cooling mode
Switching voltage AC 24...250 V
RAA20
Room thermostat for heating or cooling mode with large dial
(large temperature setting knob) and color scale
Switching voltage AC 24...250 V
RAA200
Equipment combinations
Description
Product no. (ASN) Data sheet
Motoric on / off actuator
SFA21...
4863
Thermal actuator (for radiator valves)
STA21...
4893
Thermal actuator (for small valves 2.5 mm)
STP21...
4878
Accessories
Description
Product no. (ASN)
Adapter plate 120 x 120 mm for 4 x 4“
conduit
boxes ARG70
Adapter plate 96 x 120 mm for 2 x 4“
conduit
boxes
ARG70.1
Adapter plate for surface wiring 112 x 130 mm
ARG70.2
Technical design
Key features of the RAA20.. room thermostat:
•
2-position control
•
Gas-filled diaphragm
Adjustments
The required temperature setpoint is selected with the setting knob on the front of the
thermostat.
The setpoint setting range can be mechanically limited by means of setpoint limiters
under the unit cover.
Function diagrams
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