Siemens Raa20 series Bedienungsanleitung

CE1N3002en

25.02.2008 Building Technologies

3002

RAA20 RAA200

Room thermostats RAA20..

Adjustable for heating only or cooling only

•2-position control

•Switching voltage AC 24…250 V

Use

The RAA20.. room thermostat is used in heating only or cooling only systems to main-

tain the selected room temperature.

Typical use:

•Residential buildings

•Light industrial buildings

In conjunction with

•zone valves or thermal valves

•gas or oil burners

•fans

•pumps

Functions

The RAA20.. room thermostat has separate outputs for heating only and cooling only.

If the room temperature falls below the selected setpoint, the heating contact will close.

If the room temperature exceeds the selected setpoint, the cooling contact will close.

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Siemens Room Thermostat RAA20 CE1N3002en

Building Technologies 25.02.2008

T[°C]

OFF W

3010D01

T[°C]

OFF

3010D02

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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Siemens Room Thermostat RAA20 CE1N3002en

Building Technologies 25.02.2008

Notes

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.

Technical data

Switching capacity

Voltage

Current

Frequency

AC 24...250 V

0.2…6(2) A

50 or 60 Hz

Switching differential SD ≤1 K

Setpoint setting range 8…30 °C

Operation

Climatic conditions

Temperature

Humidity

Pollution degree

To IEC 721-3-3

Class 3K5

0…50 °C

<95% r.h.

Normal, to EN 60730

Transport / storage

Climatic conditions

Temperature

Humidity

Mechanical conditions

To IEC 721-3-2

Class 2K3 / 1K3

-20…50 °C

<95% r.h.

Class 2M2

conformity

EC directive on EMC

Low-voltage directive (LVD)

2004/108/EC

2006/95/EC

Product standards

Automatic electrical controls for

household and similar use

EN 60730-1 and

EN 60730-2-9

Mounting, installation

and commissioning

Maintenance

Mechanical design

Operational data

Environmental conditions

Norms and standards

4/4

Siemens Room Thermostat RAA20 CE1N3002en

Building Technologies 25.02.2008

EMC – standard

Emission EN 61000-3-2 and

EN 61000-3-3

C-Tick conformity to

EMC emission standard

AS/NSZ 4251.1:1994

Safety standard

Degree of protection of housing

II to EN 60730

IP30 to EN 60529

Screw terminals for 2 x 1.5 mm2or 1 x 2.5 mm2(min. 0.5 mm2 )

Weight 0.14 kg (RAA20)

0.20 kg (RAA200)

Color White, NCS S 0502-G (RAL 9003)

Connection diagrams

Y1 Y2

3001A01

Y1 Y2

3001A02

D1 Zone valve or thermal

valve for heating

D2 Zone valve or thermal

valve for cooling

L Switching voltage

AC 24…250 V

N1 Room thermostat

Y1 Control output "Heat-

ing", AC 24…250 V

Y2 Control output "Cool-

ing", AC 24…250 V

N Neutral conductor

T Thermostat element

(gas-filled diaphragm)

Dimensions

96,4

99,6

42,8

3002M01

3001M02

30 30

3,6

2828

Room thermostat /

baseplate

RAA20

RAA200

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