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Manual Siemens Landis and Staefa RAA20 Thermostat

Name: Siemens Landis and Staefa RAA20 Thermostat
Brand: Siemens
SKU: Landis and Staefa RAA20
Rating: 100 (1 reviews)

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Manual

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Siemens Building Technologies Room Thermostat RAA20 CE1N3002E

HVAC Products 05.09.2003

T[°C]

OFF

3001D01

T[°C]

OFF

3001D02

T Room temperature

SD Switching differential

w Room temperature

setpoint

Y1 Output signal "Heating"

Y2 Output signal "Cooling"

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

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 112x130 mm ARG70.2

Technical design

Key features of the RAA20 room thermostat:

• Two-position control

• Gas-filled diaphragm

Adjustments

The required temperature is selected by a setpoint adjuster on the front of the thermo-

stat.

The setpoint setting range can be mechanically limited by means of setpoint limiter

under the unit cover.

Notes

The room 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.

Mounting height is about 1.5 m above the floor.

The unit can be fitted to most commercially available recessed conduit boxes or directly

on the wall.

Only authorised personnel may open the unit to perform service. (Caution: AC 250 V)

The unit must be isolated from the mains supply before opening.

Function diagrams

Mounting, installation

and commissioning

Rating

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Join the conversation about this product

Here you can share what you think about the Siemens Landis and Staefa RAA20 Thermostat. If you have a question, first carefully read the manual. Requesting a manual can be done by using our contact form.

John Okeeffe 06-03-2023
Hi I have a old Landis&Staefa room stat, but I can't turn it down beyond 20 degrees. If I do turn it on a lower setting the boiler cuts out. Any ideas.

reply | This was helpful (2)

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Specifications

Brand	Siemens
Model	Landis and Staefa RAA20
Category	Thermostats
File type	PDF
File size	0.09 MB

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Frequently Asked Questions about Siemens Landis and Staefa RAA20 Thermostat

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

What is the dead zone of a thermostat? Verified

Many modern thermostats have a dead zone. If the temperature deviates less than 4°C from the set temperature, the system will not heat or cool. This so called dead zone of the thermostat prevents the system from turning on and off too often, saving energy.

This was helpful (1588) Read more

What is the best place to mount a thermostat? Verified

The best place for a thermostat is approximately 1,5 meter above the ground. Never place the thermostat nead a radiator or other heat emitting equipment or in direct sunlight. Choose a room that is used often. In most cases this is the living room.

This was helpful (990) Read more