Siemens RAA11 Room Thermostat Product SPECIFICATION GUIDE

Siemens RAA11 Room Thermostat

Tamperproof for heating only or cooling only Two-position control Switching voltage AC 24…250 V

Use
The RAA11 room thermostat is used in heating-only or cooling-only systems to maintain the selected room temperature where tamperproof housing is needed.
Typical use:

• Schools
• Public buildings
• Storage rooms
• Maintenance rooms

Functions

The RAA11 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.

Function diagrams

Equipment combinations

Type of unit	Type reference	Data sheet*)
Motoric on/off actuator	SFA21…	4863
Thermal actuator (for radiator valve)	STA21…	4893
Thermal actuator (for small valve 2,5 mm)	STP21…	4878

The documents can be downloaded from http://siemens.com/bt/download

Accessories

Description	Type reference
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 112×130 mm	ARG70.2

Technical design
Key features of the RAA11 room thermostat:

• Two-position control
• Gas-filled diaphragm
• No external adjustment facility

Notes
Mounting, installation, and commissioning
The thermostat should be located where the air temperature can be sensed as accurately as possible, without getting adversely affected by direct solar radiation or other heat or refrigeration sources. The mounting height is about 1.5 m above the floor.

The unit can be fitted to the most commercially available recessed conduit boxes or directly on the wall.

AC 250 V
Only authorized personnel may open the unit to perform service. The unit must be isolated from the main 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.

Warning!
No internal line protection for supply lines to external consumers (Y1, Y2) Risk of fire and injury due to short circuits!

• Adapt the line diameters as per local regulations to the rated value of the installed overcurrent protection device.

Maintenance Mechanical design

The room thermostat is maintenance-free. The diaphragm is filled with environmentally friendly gas. The thermostat housing is made of plastic

Ordering

Type (ASN)	Part number (SSN)	Description
RAA11	S55770-T219	Room thermostat RAA11

Disposal

The devices are considered electronic devices for disposal in terms European
Directive 2012/19/EU and may not be disposed of as domestic waste.

• Dispose of the device via the channels provided for this purpose.
• Comply with all local and currently applicable laws and regulations.

Technical data

Power supply	Switching capacity Voltage Current Frequency	AC 24…250 V 0.2…6(2.5) A 50 or 60 Hz
No internal fuse External preliminary protection with max. C 10 A circuit breaker in the supply line required under all circumstances
Screw terminals for		2 x 1.5 mm2 (min. 0.5 mm2 )
Operational data	Switching differential SD	£1K
Setpoint setting range		8…30 °C
Environmental conditions	Operation Climatic conditions Temperature Humidity Pollution degree	to IEC 60721-3-3 Class 3K5 0…+50 °C <95 % r.h. normal, to EN 60730-1
Transport / Storage Climatic conditions Temperature Humidity Mechanical conditions		to IEC 60721-3-2 Class 2K3/1K3 -20…+50 °C <95 % r.h. Class 2M2
Industry standards	EU conformity (CE)	8000064801*)
UK conformity (UKCA)		A5W00209372A*)
RCM conformity		CE1T3561en_C1*)
Environmental Compatibility	The product environmental declaration CE1E3561*) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal).
Safety standard Degree of protection of housing		II to EN 60730-1 IP30 to EN 60529
Weight		0.14 kg
Colour		white, NCS S 0502-G (RAL 9003)

The documents can be downloaded from http://siemens.com/bt/download.

Connection diagrams

Dimensions

Remarks

Heating:
Because of the unavoidable self-heating effects of the electrical current, loads of more than 3 Amperes connected to the unit can influence the control behavior and temperature accuracy negatively.
Cooling:
Because of the unavoidable self-heating effects of the electrical current, loads of more than 1 Amperes connected to the unit can influence the control behavior and temperature accuracy negatively.
© 2011 – 2023 Siemens Switzerland Ltd Room Thermostats RAA11

Reference

Download Manual:

Siemens RAA11 Room Thermostat Product SPECIFICATION GUIDE

Siemens RAA11 Room Thermostat Product SPECIFICATION GUIDE