Siemens RDF301, RDF301.50 Series, RDF600KN, RDF301.50H Instructions Manual

s

3

171

RDF301, RDF600KN RDF301.50 RDF301.50H

Semi flush-mount
communicating room
thermostats

RDF301
RDF301.50..
RDF600KN

For 2

-pipe, 2-pipe with electrical heater, and 4-pipe fan coil units

For use with compressors in DX type equipment

• KNX bus communications (S-mode and LTE mode)

• Backlit display

• 2P / PI / P control

• Outputs for on/off or 3-position control

• Outputs for 3-speed or 1-speed fan

• 2 multifunctional inputs for keycard contact, external sensor, etc.

• Operating modes: Comfort, Economy and Protection

• Automatic or manual fan speed control

• Automatic or manual heating/cooling c h angeover

• Minimum and maximum limitation of room temperature s etpoint

• Control depending on the room or the return air tempe rature

• Adjustable commissioning and control parameters

• Commissioning with Synco ACS, ETS or via local HMI

• Integration into Synco

• Integration into Desigo and Apogee via group addressing (ETS) or via

individual addressing

• Integration into third-party system via group addressing (ETS)

• AC 230 V operating voltage

CE1N3171en
2014-05-23

Building Technologies

Additional RDF600KN features:

• Independent function for window contact and presence detector
Additional RDF301.50 features:

• Four buttons to control KNX actuators via KNX S-mode

(functions: switching, dimming, blinds control, 8-bit scene)

Additional RDF301.50H features:

• Four buttons for hotel functions MUR (Make Up Room), DND (Do Not

Disturb) via KNX S-mode

Type of mounting / suitable conduit boxes:

• RDF600KN for round box, with min 60 mm diameter, min 40 mm depth

and recessed rectangular box with 60.3 mm fixing centers

• RDF301... for recessed rectangular box with 60.3 mm fixing centers

Use

Room temperature control (heating or cooling) in individual rooms and zones by
means of:

• 2-pipe fan coil units

• 2-pipe fan coil units with electrical heater

• 4-pipe fan coil units

• Compressors in DX-type equipment

• Compressors in DX-type equipment with electrical heater

The RDF301... / RDF600KN controls:

• One single or 3-speed fan

• One or two on/off valve actuators

• One on/off valve actuator and one 1-stage elec tr ic al h eater

• One 3-position valve actuator

• One 1-stage compressor in DX-type equipment, or one 1-stage compressor with

electrical heater

Used in systems with:

• Heating or cooling mode

• Automatic heating/cooling changeover

• Manual heating/cooling changeover

• Heating and cooling mode (e.g. 4-pipe system)

The room thermostats are delivered with a fixed set of applications.
The relevant application is selected and activated during commissioning using one
of the following tools:

• Synco ACS

• ETS

• Local DIP switch and HMI

Functions

• Room temperature control via built-in temperature sensor or external room
temperature / return air temperature sensor.

• Changeover between heating and cooling mode (automatically via local sensor
or bus, or manually).

• Selection of applications via DIP switches or commissioning tool.

• Selection of operating mode via operating mode button on the thermostat.

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

• Temporary Comfort mode extension.

• 1- or 3-speed fan control (automatically or manually).

• Display of current room temperature or setpoint in °C and/or °F.

• Minimum and maximum limitation of room temperature setpoint.

• Button lock (automatically and manually).

• 2 multifunctional inputs, freely selectable for:

− Sensor for automatic heating / cooling changeover

− External room temperature or return air temperature sensor

− Dew point sensor

− Electric heater enable

− Fault input

− Monitor input for temperature sensor or switch state

RDF301…:

− Operating mode switchover contact … (keycard, window contact, etc )

RDF600KN:

− Window contact

− Presence detector

• Advanced fan control function, e.g. fan kick, fan start, selectable fan operation

(enable, disable or depending on heating or cooling mode).

• Purge function together with 2-port valve in a 2-pipe changeover system.

• Reminder to clean fan filters (adjust with P62).

• Floor heating temperature limitation.

• Reload factory settings for commissioning and control parameters.

• KNX bus (terminals CE+ and CE-) for communication with Synco or KNX

compatible devices.

• Display of outdoor temperature or time of day via KNX bus.

• Time scheduling and central control of setpoints via KNX bus.

• With a Synco RMx7xx controller, the energy demand signal of the thermostat is

used to optimize energy supply.

RDF301.50 only:

• Four buttons to control KNX actuators via KNX S-mode.
("switching groups" with functions such as switching, dimming, blinds control,
8-bit scene).

RDF301.50H only:

• Four buttons for Hotel applications to control via KNX S-mode.
Same functions as RDF301.50, but with dedicated button labels for hotel
applications: Make Up Room (MUR), Do Not Disturb (DND).

Applications

The thermostats support the following applications, which can be configured using
the DIP-switches on the inner side of the thermostat's front panel or a commissio­ning tool.

All DIP switches need to be set to OFF (remote configuration, factory setting) to
select an application via commissioning tool.

Remote configuration

, via commissioning tool (factory set)

• Synco ACS

• ETS

DIP switches

1ON2 3

Remote configuration

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Applications for fan coil systems

Application and output signal, DIP switches, diagram

• 2-pipe fan coil unit ON/OFF
(heating or cooling)

1ON2 3

• 2-pipe fan coil unit with el. heater
(heating or cooling) ON/OFF

1ON2 3

3076D20

(B1)

M1

Y1

T

B2

T

T

(B1)

Y1

M1

3171D21

T

B2

YE

T

(B1)

T

(B1)

• 2-pipe fan coil unit 3-position
(heating or cooling)

1

ON

2 3

• 4-pipe fan coil unit ON/OFF
(heating and cooling)

1

ON

2 3

3076D20

(B1)

M1

Y1

T

B2

T

T

(B1)

T

Y2

Y1

M1

3076D22

(B1)

T

(B1)

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Applications for Universal systems

Application and output signal, DIP switches, diagram

• Chilled / heated ceiling ON/OFF
(heating or cooling)

1ON2 3

• Chilled / heated ceiling with electric
heater (heating or cooling) ON /OF F

1ON2 3

3191S11

N1

T

B1

T

B2

T

D3

Y1

3191S12

N1

T

YE

B1

T

B2

T

D3

Y1

• Chilled / heated ceiling 3-position
(heating or cooling)

1

ON

2 3

• Chilled ceiling and radiator ON/OFF
(heating and cooling)

1ON2 3

3191S11

N1

T

B1

T

B2

T

D3

Y1

3191S13

N1

T

B1

T

D3

Y1

YR

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Applications for heat pump systems

Application and output signal, DIP switches, diagram

• 1-stage compressor ON/OFF
(heating or cooling)

1

ON

2 3

• 1-stage compressor with electric
heater (heating or cooling)
ON/OFF

1ON2 3

3181S31

N1

T

B1

T

D3

3181S32

N1

T

YE

B1

T

D3

• 1-stage compressor ON/OFF
(heating and cooling)

1ON2 3

3181S35

N1

T

B1

T

D3

Y1 Heating or heating / cooling

valve actuator

B1 Return air temperature sensor or external

room temperature sensor (optional)

Y2 Cooling valve actuator

B2 Changeover sensor (optional)

YE Electric heater

M1 3- or 1-speed fan

Key

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Type summary

Product no. Stock no.

Operating

voltage

Control outputs

Suitable

conduit

box

2)

3-

pos

ON/

OFF

DC

0..10 V

KNX switching

groups

RDF301

S55770-T104

AC 230 V

1 1)

2 1)

--

rectangular

RDF301.50

S55770-T105

AC 230 V

1 1)

2 1)

--



rectangular

RDF301.50H

S55770-T334

AC 230 V

1 1)

2 1)

--

Hotel: MUR, DND 3)

rectangular

RDF600KN S55770-T293 AC 230 V

1 1) 2 1)

--

round &

rectangular

1) Selectable: ON/OFF or 3-position.

2) Rectangular conduit box e.g. ARG71.
Round CEE conduit box min 60 mm diameter and min 40 mm depth.

3) MUR: Make Up Room, DND: Do Not Disturb.

Ordering

• When ordering, indicate both product number / SSN number and name:
E.g. RDF301 / S55770-T104 room thermostat

• Order valve actuators separately.

Equipment combinations

Type of unit Product no.

Data

sheet

Cable temperature sensor or changeover

sensor

QAH11.1

1840

Room temperature sensor

QAA32

1747

Condensation monitor

QXA2601 /

QXA2602 /
QXA2603 /

AQX2604

3302

Electromotoric ON/OFF actuator

SFA21...

4863

Electromotoric ON/OFF valve and
actuator

(only available in AP, UAE, SA and IN)

MVI…/MXI…

4867

Zone valve actuators
(only available in AP, UAE, SA and IN)

SUA…

4832

Thermal actuator (for radiator valves),

NO

STA23...

4884

Thermal actuator

(for small valves 2.5 mm), NC

STP23...

4884

On/off actuators

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Electrical actuator, 3-position

(for radiator valve)

SSA31...

4893

Electrical actuator, 3-position

(for 2- and 3-port valves / V…P45)

SSC31

4895

Electrical actuator, 3-position

(for small valve 2,5 mm)

SSP31…

4864

Electrical actuator, 3-position

(for small valve 5,5 mm)

SSB31...

4891

Electrical actuator, 3-position

(for small valve 5,5 mm)

SSD31...

4861

Electromotoric actuator, 3-position

(for valves 5.5 mm)

SQS35…

4573

For the maximal number of actuators in parallel, refer to information in the data sheets
of the selected actuators and to this list, depending on which value is lower:

• Parallel operation of max 6 SS… actuators (3-pos) is possible.

• Parallel operation of max 10 on/off actuators is possible.

• Parallel operation of SQS35 is not possible.

Accessories

Designation Product no / SSN

Data
sheet

Changeover mounting kit

(50 pcs/package)

ARG86.3

N3009

Plastic mounting bracket for semi­flush-mount thermostats RDF301... for
increasing the headroom in the conduit

box by 10mm

ARG70.3

N3009

Conduit box for semi-flush mounted
thermostat RDF301...

ARG71 /

S55770-T137

N3009

KNX Power supply 160 mA (Siemens BT LV)

5WG1 125-1AB02

--

KNX Power supply 320 mA (Siemens BT LV)

5WG1 125-1AB12

--

KNX Power supply 640 mA (Siemens BT LV)

5WG1 125-1AB22

--

3-position actuators

Note:

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Mechanical design

The thermostats consist of 2 parts:

• Front panel with electronics, operating elements and built-in room temperature
sensor.

• Mounting base with power electronics .

The rear of the mounting base contains the screw terminals.
Slide the front panel in the mounting base and snap on.

Operation
and
settings

RDF301, RDF600KN

RDF301.50

RDF301.50H

1 Operating mode selector
2 Change fan operation
3 Adjust setpoint and control parameters

4 Four buttons to control KNX actuators via KNX S-mode

(functions: switching, dimming, blinds control, 8-bit scene)

5 Four dedicated buttons for hotel functions (Make Up Room, Do Not Disturb)

via KNX S-mode (functions: switching)

Display

1 Operating mode

Protection

Comfort

Economy

Auto Timer according to

schedule (via KNX)

2 Displays room temperature, set-

points and control parameters.

Symbol indicates current room

temperature

3 Fan mode

Auto fan active

Fan speed

low, medium, high

4 Heating/cooling mode

Cooling
Heating

Electrical heater active

5

Condensation in room
(dewpoint sensor active)

6 Indicates fault or reminder
7 Temporary comfort mode

extension active

8 Additional user information, like

outdoor temperature

or
time of day from KNX bus.
Selectable via parameters

9

Button lock active

10

Weekday 1…7 from KNX bus
(1 = Monday / 7 = Sunday)

RDF301.50

RDF301.50H

1

2

5

3 8
6

9

7

4

10

3

2

1

3

4

4

5

1

2

5

1

2

3

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Engineering notes

See the "Reference documentation", page 15 for information on how to engineer
the KNX bus (topology, bus repeaters, etc.) and how to select and dimension
connecting cables for supply voltage and field devices.

Mounting and installation

Mount the room thermostat on a conduit box. Do not mount on a wall in niches or
bookshelves, behind curtains, above or near heat sources, or exposed to direct
solar radiation. Mount about 1.5 m above the floor.

Mounting / Dismounting

• Mount the room thermostat on a clean, dry indoor place without direct airflow
from a heating / cooling device, and not exposed to drips or splash water.

• RDF301… : In case of limited space in the conduit box use the mounting
bracket ARG70.3 to increase the headroom by 10mm

• Before removing the front cover, disconnect the power supply.

Wiring

See the mounting instructions M3171... and M3076.1 enclosed with the
thermostat.

• Comply with local regulations to wire, protection and earth the thermostat.

• The device has no internal fuse for supply lines to fan and actuators. To avoid

risk of fire and injury due to short-circuits, the AC 230 V mains supply line must

have a circuit breaker with a rated current of no more than 10 A.

• Properly size the cables to the thermostat, fan and valve actuator s for

AC 230 V mains voltage.

• Use only valve actuators rated for AC 230 V.

• The wiring cross section used for power supply (L, N), fan (Q1, Q2, Q3,N) and

230 V outputs (Yx -N) must be adapted to the preceding overload protection
elements (10A) under all circumstances. Comply under all circumstances with

local regulations

• Cables of SELV inputs X1-M/X2-M: Use cables with 230 V insulation, as the
conduit box carries AC 230 V mains voltage.

• Inputs X1-M or X2-M of different units (e.g. summer/winter switch) may be
connected in parallel with an external switch. Consider overall maximum

contact sensing current for switch rating.

• KNX communication cables (input CE+ / CE-): Use cables with 230 V

insulation, as the conduit box carries AC 230 V mains voltage.

• No metal conduits.

• No cables provided with a metal sheath.

• Disconnect from supply before opening the cover.

• When a KNX bus power supply is connected on the line with communicating

thermostats and Synco controller, the internal KNX power supply of the Synco

controllers must be switched off.

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Commissioning notes

The room thermostats are delivered with a fixed set of applications.
Select and activate the relevant application during commissioning using one of the

following tools:

− Local DIP switch and HMI

− Synco ACS

− ETS

Set the DIP switches before snapping the front panel to the mounting plate, if you
want to select an application via DIP sw it ches.

All DIP switches need to be set to "OFF" ("remote configuration"), if you want to
select an application via commissioning tool.

After power is applied, the thermostat resets and all LCD segments flash, indica­ting that the reset was correct. After the reset, which takes about 3 seconds, the
thermostat is ready for commissioning by qualified HVAC staff.

If all DIP switches are OFF, the display reads "NONE" to show that an application
needs to be set via tool.

Each time the application is changed, the thermostat reloads the factory setting for
all control parameters, except for KNX device and zone addresses!

Connect the Synco ACS or ETS tools to the KNX bus cable at any point for
commissioning:

L

N

Y11

Y21

X1 M

X2

N1

3171A03

Q1 Q2

Q3

CE+ CE-

KNX

KNX

V24

ETS

RS232

Siemens
N148 /
UP146 /
UP152

KNX

USB

ETS / ACS

Siemens
OCI700

ACS and ETS require an interface:

− RS232 KNX interface (e.g. Siemens N148 / UP146 / UP152)

− OCI700 USB- KNX interface

An external KNX bus power supply is required if an RDF301... / RDF600KN is
connected directly to a tool (ACS or ETS) via KNX interface.

Applications

Note

Connect tool

Note

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

The thermostat's control parameters can be set to ensure optimum performance of
the entire system (see basic documentation P3171).
The parameters can be adjusted using

− Local HMI

− Synco ACS

− ETS

• The control sequence may need to be set via parameter P01 depending on the

application. The factory setting for the 2-pipe application is "Cooling only"; and
"Heating and Cooling" for the 4-pipe application.

• When the thermostat is used with a compressor, adjust the minimum output on­time (parameter P48) and off-time (parameter P49) for Y11/Y21 to avoid
damaging the compressor or shortening its life due to frequent switching.

• Recalibrate the temperature sensor if the room temperature displayed on the
thermostat does not match the room temperature measured (after min. 1 hour of
operation). To do this, change parameter P05.

• We recommend to review the setpoints and setpoint ranges (parameters
P08…P12) and change them as needed to achieve maximum comfort and save
energy.

The programming mode helps identify the thermostat in the KNX network during
commissioning.

Press buttons "operating mode"

and "+" simultaneously for 6 sec to activate

programming mode, which is indicated on the display with "PrOg".
Programming mode remains active until thermostat identification is complete.

Assign device address (P81) via HMI, ACS or ETS.
With device address set to 255, the communication is deactivated (no exchange of

process data).

Use ETS to assign the KNX group addresses of the RDF communication objects.

RDF301.50 and RDF301.50H have 2 switching groups with a pair of buttons each,
which must be config ured v ia ET S. The switching groups only work on S-mode.

Each device has a unique KNX serial number inside the front panel. An additional
sticker with the same KNX serial number is enclosed in the packaging box. This
sticker is intended for installers for documentation purposes.

Disposal

The devices are considered electronics devices for disposal in terms of

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.

Control parameters

Control sequence

Compressor

-based

application

Calibrate sensor

Setpoint and range
limitation

Programming mode

Assign KNX device

address

Assign KNX group

addresses

Switching groups

RDF301.50… only

KNX serial number

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Technical data

Power supply

Rated voltage

AC 230 V

Overvoltage category

III Frequency

50/60 Hz

Power consumption

RDF301...

RDF600KN

Max. 4 VA / 3.0 W

Max. 3.5 VA / 1.2 W

No internal fuse

External preliminary protection with max C 10 A circuit breaker

Required in all cases

Outputs Fan control Q1, Q2, Q3-N

Rating min, max resistive (inductive)

AC 230 V

Min. 5 mA, Max. 5(2) A

Fans must NOT be connected in parallel!

Connect one fan directly, for additional fans,

one relay for each speed

Control output Y11-N / Y21-N (NO)

Rating min, max resistive (inductive)

Max. total load current through terminal "L" (Qx+Yxx)

AC 230 V
Min. 5 mA, Max. 5(2) A

Max. 7A

No internal fuse

External preliminary protection with max. C 10 A circuit breaker in the supply line

required under all circumstances

Inputs

Multifunctional input X1-M/X2-M

Temperature sensor input:
Type
Temperature range
Cable length
Digital input:
Operating action
Contact sensing
Parallel connection of several thermostats
for one switch

Insulation against mains voltage (SELV)

QAH11.1 (NTC)

0...49 °C
Max. 80 m

Selectable (NO / NC)
SELV DC 0...5 V/max 5 mA
Max. 20 thermostats per
switch

4 kV, reinforced insulation

Function of inputs:

External temperature sensor, heating/cooling
changeover sensor, operating mode switchover
contact, dewpoint monitor contact, enable electrical

heater contact, fault contact, monitoring input

Selectable

X1: P38
X2: P40

KNX bus Interface type KNX, TP1-64

(electrically isolated)

Bus current RDF301

RDF600KN

20 mA

5 mA

Bus topology: See KNX manual (reference documentation, see below)

Operational data Switching differential, adjustable

Heating mode (P30)

Cooling mode (P31)

2 K (0.5...6K)

1 K (0.5...6K)

Setpoint setting and range

Comfort (P08)

Economy (P11-P12)

Protection (P65-P66)

21°C (5...40 °C)
15°C/30°C (OFF, 5...40 °C)

8°C/OFF (OFF, 5...40 °C)

Multifunctional input X1/X2

Input X1 default value (P38)

Input X2 default value (P40)

Selectable 0...8
3 (Operating mode

switchover)

1 (External temperature

sensor)

Caution

STOP

Note!

Caution

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Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Built-in room temperature sensor

Measuring range
Accuracy at 25 °C

Temperature calibration range

0…49 °C
< ± 0.5 K

± 3.0 K

Settings and display resolution

Setpoints

Current temperature value displayed

0.5 °C

0.5 °C

Environmental conditions Operation

Climatic conditions
Temperature

Humidity

As per IEC 721-3-3
Class 3K5

0...50 °C

<95 % r.h.

Transport

Climatic conditions
Temperature
Humidity

Mechanical conditions

As per IEC 721-3-2
Class 2K3

−25...60 °C
<95 % r.h.

Class 2M2

Storage

Climatic conditions
Temperature

Humidity

As per IEC 721-3-1
Class 1K3

−25...60 °C

<95 % r.h.

Standards and directives EU conformity (CE)

Product standards

Automatic electric controls for household and
similar use
Special requirements for temperature-dependent
controls
Electronic control type

Electromagnetic compatibility

Emissions
Immunity

Low-voltage directive

Electrical safety

EN 60730–1

EN 60730–2-9

2.B (micro-disconnection on
operation)

2004/108/EC

EN 60730–1, EN 50491-5-2
EN 60730–1, EN 50491-5-2
EN 50491-5-3
2006/95/EC

EN 60730–1, EN 50491-3

RCM Mark conformity (Emission)

AS/NZS 61000-6-3

Reduction of hazardous substances 2011/65/EU

EN 50581

Safety class

II as per EN 60730

Pollution class

Normal

Degree of protection of housing

IP 30 as per EN 60529

The product environmental declaration CE1T3076xx *) contains data on

environmentally compatible product design and assessments (RoHS compliance,

materials composition, packaging, environmental benefit, disposal).

General Connection terminals

Minimal wiring cross section on

L, N, Q1, Q2, Q3, Y11, Y21

Solid wires or prepared
stranded wires
1 x 0.4…1.5 mm

2

min 1.5 mm

2

Housing front color

RAL 9003 white

Weight without / with packaging RDF301..

RDF600KN

0.240 kg / 0.320 kg

0.150 kg / 0.220 kg

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

Environmental
Compatibility

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Siemens RDF301, RDF301.50..., RDF600KN CE1N3171en

Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Refer

ence documentation

Handbook for Home and Building Control - Basic Principles
(

http://www.knx.org/knx-en/training/books-documentation/knx-association-

books/index.php)

Synco CE1P3127 Communication via the KNX bus for Synco 700, 900 and RXB/RXL

Basic documentation

Desigo CM1Y9775 Desigo RXB int egr ati on – S-mode

CM1Y9776 Desigo RXB / RXL integration – individual addressing
CM1Y9777 Third-party integration
CM1Y9778 Synco integration

CM1Y9779 Working with ETS

Apogee

Installation Instruction: KNX Driver for PXC Modular; Document No. 565-132

Technical Spec Sheet: KNX Driver for PXC Modular; Document No. 127-1676

Technical Reference for KNX Driver; Document No. 140-0804

Application 6205 Point Map for RDF (RDF 301 only)

Connection terminals

L X1 M

N

Q1 Q2 Q3

Y11

N

SELV

Y21

X2

3171A01

CE+ CE

-

L, N Operating voltage AC 230 V
Q1 Control output "Fan speed 1 AC 230 V"
Q2 Control output "Fan speed 2 AC 230 V"
Q3 Control output "Fan speed 3 AC 230 V"
Y11,Y21 Control output "Valve" AC 230 V (N.O., for

normally closed valves), output for compressor
or output for electrical heater

X1, X2 Multifunctional input for temperature sensor

(e.g. QAH11.1) or potential-free switch
Factory setting:
– X1 = Operating mode switchover contact
– X2 = External sensor
(function can be selected via parameter P38 /

P40).
M Measuring neutral for sensor and switch
CE+ KNX data +

CE- KNX data -

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Siemens RDF301, RDF301.50..., RDF600KN CE1N3171en
Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Connection diagrams

Application

N1 Room thermostat

RDF301... , RDF600KN
M1 1- or 3-speed fan
Y1 Valve actuator, 2- or 3-position
Y1, Y2 Valve actuator, 2-position
E1 Electric heater
C1, C2 1-stage compressor
F External circuit breaker
S1, S2 Switch (keycard, window contact,

presence detector, etc.)
B1, B2 Temperature sensor (return air

temperature, external room

temperature, changeover sensor, etc.)
CE+ KNX data +
CE- KNX data –

2-pipe, 2-position

2-pipe, 3-position

− Y11 = Open

− Y21 = Close

2-pipe and electric
heater

4-pipe

− Y1 = Heating

− Y2 = Cooling

1-stage compressor

− C1 = Heating

and / or

−

C2 = Cooling)

1-stage compressor
and electric heater

L

N

10 A

L

N

Y11

Y21

AC 230 V

X1 M

X2

N1

M1

Y1

5(2)A
max.

5(2)A
max.

B2

S2

B1

S1

F

3171A12

Q1 Q2 Q3

I II III

CE+ CE-

KNX

Y1

5(2)A
max.

E1

5(2)A
max.

5(2)A
max.

Y1

C1

5(2)A
max.

Y1

5(2)A
max.

Y2

5(2)A
max.

C1

5(2)A
max.

E1

5(2)A
max.

C2

5(2)A
max.

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Siemens RDF301, RDF301.50..., RDF600KN CE1N3171en

Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23

Dimensions

Dimensions in mm

RDF301...

RDF600KN

86

8

6

3076M01

3171M13

14

3016

3076M12

80

3076M13_01

© 2009 - 2014 Siemens Switzerland Ltd Subject to change

17 / 17

Siemens RDF301, RDF301.50..., RDF600KN CE1N3171en
Building Technologies Semi f lush-mount communicating room thermostats 2014-05-23