Siemens RDF800KN, RDF800KN/NF User Manual

CB1N3174en
2014

-09-10

Building Technologies

s

3

174

RDF800KN
RDF800KN/NF

Touch Screen Flush-mount Room
Thermostats with KNX
Communications

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

For universal applications

For use with compressors in DX type equipment

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

• Large display with backlight

• 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.

• Independent function for window contact and presence detector

• Operating modes: Comfort, Economy and Protection

• Automatic or manual fan speed control

• Automatic or manual heating / cooling changeover

• Minimum and maximum limitation of room temperature setpoint

• Control depending on the room or the return air temperature

• Adjustable commissioning and control parameters

• Commissioning with Synco ACS, ETS4 or via local HMI

• Interoperation into Synco 700

• Integration into Desigo via group (ETS4) or via individual addressing

• Integration into third-party system via group addressing (ETS4)

• AC 230 V operating voltage

• RDF800KN: Mounting on round box, with min 60 mm diameter or recessed

square 86 mm box with 60.3 mm fixing centers and min 40 mm depth

• RDF800KN/NF: Mounting on recessed square 86 mm box with 60.3 mm

fixing centers and min 40 mm depth, requires additional mounting frame

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Siemens RDF800KN… CB1N3174en
Building Technologies Touch Screen Flush-mount Room Thermostats with KNX Communications 2014-09-10

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

• Chilled /heated ceiling

• Chilled /heated ceiling and electrical heater

• Chilled ceiling and radiator / under floor heating

• Compressors in DX-type equipment

• Compressors in DX-type equipment with electrical heater

The RDF800KN... controls:

• One single or 3-speed fan

• One or two ON/OFF valve actuators

• One ON/OFF valve actuator and one 1-stage electrical heater

• 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 (such as 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

• ETS4

• 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 touch screen

• 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

• Keylock function: unlock, total lock and setpoint

• 2 multifunctional inputs, freely selectable for:

− Window contact

− Presence detector

− External room temperature or return air temperature sensor

− Fault input

− Monitor input for temperature sensor or switch state

− Sensor for automatic heating / cooling changeover (RDF…)

− Dew point sensor (RDF…)

− Electric heater enable (RDF…)

• Advanced fan control function, such as: fan kick, fan start delay, and selectable

fan operation (enable, disable or depending on heating or cooling mode)

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Building Technologies Touch Screen Flush-mount Room Thermostats with KNX Communications 2014-09-10

• 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

• Wizard function for easy commissioning via HMI

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

compatible devices

• Display of time of day via KNX bus

• Display of outdoor temperature via KNX bus on INFO page

• 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

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 (factory setting) to select an application via
commissioning tool.

Remote configuration, via commissioning tool (factory
setting)

• Synco ACS

• ETS4

DIP switches

Remote configuration

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Siemens RDF800KN… CB1N3174en
Building Technologies Touch Screen Flush-mount Room Thermostats with KNX Communications 2014-09-10

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

1

ON

2 3

3076D20

(B1)

M1

V1

T

B2

T

T

(B1)

V1

M1

3171D21

T

B2

E1

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

30

76D2

0

(B1)

M1

V1

T

B2

T

T

(B1)

T

V2

V1

M1

3076D22

(B1)

T

(B1)

V1 Heating or heating / cooling valve actuator

B1 Return air temperature sensor or external room

temperature sensor (optional)

V2 Cooling valve actuator

B2 Changeover sensor (optional)

E1 Electric heater

M1 3- or 1-speed fan

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Siemens RDF800KN… CB1N3174en
Building Technologies Touch Screen Flush-mount Room Thermostats with KNX Communications 2014-09-10

Applications for Universal systems

Application and output signal, DIP switches, diagram

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

1

ON

2

3

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

1

ON

2 3

3191S11

N1

T

B1

T

B2

T

D3

V1

3191S12

N1

T

E1

B1

T

B2

T

D3

V1

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

1ON2 3

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

1

ON

2

3

3191S11

N1T

B1

T

B2

T

D3

V1

3191S13

N1T

B1

T

D3

V2

V1

V1 Heating or heating / cooling valve actuator

B1 Return air temperature sensor or external room

temperature sensor (optional)

V2 Cooling valve actuator

B2 Changeover sensor (optional)

E1 Electric heater

D3 Dewpoint sensor

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Siemens RDF800KN… CB1N3174en
Building Technologies Touch Screen Flush-mount Room Thermostats with KNX Communications 2014-09-10

Applications for heat pump systems

Application and output signal, DIP switches, diagram

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

1ON2 3

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

1

ON

2 3

3181S31

N1

T

B1

T

D3

3181S32

N1T

E1

B1

T

D3

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

1ON2 3

3181S35

N1

T

B1

T

D3

N1 Thermostat

Terminal Y1: Heating (H&C) or Heating/Cooling

Terminal Y2: Cooling (H&C)

B1 Return air temperature sensor or external room

temperature sensor (optional)

E1 Electric heater

D3 Dewpoint sensor