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Manual Siemens RAB31.1 Thermostat

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Manual

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Siem ens Room Therm ostats RAB31.. CE1N3017en

Building Technologies 2015-01-07

Functions

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.

There are two possibilities to control the fan speed:

a) Manually by means of the three - speed fan switch on the thermostat for continuous

operation

b) Automatically by switching to the selected fan speed via the thermostat for

controlled operation. In that case – prior to commissioning – the jumper positions

corresponding to the thermostat function must be selected. There are two choices of

jumper positions available on printed circuit board:

SR1

SR2

Selected fan speed as continuous operation

Auto

Fan is switched at the same time as the cooling or

heating valve, depending on the switch position.

When the ventilation function

is selected (RAB31.1) on the cover by setting the slide

switch, the heating and cooling contacts are always open and the fan operates at the

selected speed.

Heating or cooling is selected with a switch located on the front of the thermostat.

Heating Cooling

T Room temperature

SD Switching differential

W Room temperature

setpoint

Y1 Valve output signal

"Heating"

Y2 Valve output signal

"Cooling"

Type summary

Four-pipe fan coil room thermostat for use with 3-speed fan, manual

changeover

RAB31

Four-pipe fan coil room thermostat for use with 3-speed fan, manual

changeover and ventilation function

RAB31.1

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

Electromotoric actuator for zone valve VVI46..

(2 position on / off)

SUA21.. 4830

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

Heating

Cooling

Fan speed

Ventilation

Changeover

Function diagrams

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Specifications

Brand	Siemens
Model	RAB31.1
Category	Thermostats
File type	PDF
File size	0.18 MB

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Frequently Asked Questions about Siemens RAB31.1 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 (991) Read more