Siemens RDG, RDF Application Manual
1
Answers for infrastructure.
RDG/RDF –
room thermostats
Application guide
Fan coil unit
4-pipe with
el. heater
Chilled/
heated ceiling
Chilled/heated
ceiling with
el. heater
Chilled/heated
ceiling and
radiator
Chilled
ceiling
and radiator
Compressor
for heating
or cooling
Compressor
with el. heater
Compressor
for heating
and cooling
2-stage
compressor
for heating
or cooling
2-pipe
el. heater or
radiator
2-pipe
Single duct
Single duct
with el. heater
Single
duct with
heat/cool coil
Single duct
and radiator
2-stage
heating
or cooling
Variable Air Volume
(VAV)
Heat pumps
Universal
Application overview
3
Contents
Introduction …………………………………………...................................................................4
Before you start.........................................................................................................4
Description of RDG range…………………………………......................................................4
Products range RDG ……………………………...................................................................5
Description of RDF semi flush-mount range………………………………..............................5
Products range RDF………………………………………………….............................................5
Description of applications…………………………............................................................6
The RDG/RDF offers extensive features and functions..................................................6
Fan coil – application overview…………………................................................................8
Fan coil – product overview……………………….............................................................. 10
Universal – application overview………………….………………….………………….…………...12
Universal – product overview………………….………………….………………….…………........14
Heat pumps – application overview……………….........................................................15
Heat pumps – product overview…………………….........................................................16
VAV – application overview…………………………..........................................................18
VAV – product overview………………………………..........................................................19
How to prepare and set up your room thermostats....................................................20
Introduction............................................................................................................20
Control parameters..................................................................................................20
Installation and set up………………………………………………………………….....................20
Application-specific parameter.................................................................................21
Communicating, KNX- compatible thermostats..........................................................22
Suggestions for energy saving……………………………………………………….....................22
FAQ.........................................................................................................................22
Reference to the basic documentation……………………………………………..................... 23
Application examples………………………………………………………………….......................24
Overview – fan coil room thermostats………………......................................................28
Overview – universal room thermostats……………......................................................30
4
Introduction
The new thermostat range RDG and RDF is very versatile and consists of numerous
products. The RDG and RDF offer many new features and cover a broad field of
applications.
This document shall:
– give you an overview of the new ranges RDG and RDF
– assist you by the selection of the suitable product, and
– provide you with helpful information for installation and commissioning
The section “application overview” for each main application – i.e. fan coil unit,
universal, heat pumps and VAV – shows what applications are covered by which
thermostat line.
The section “product overview” shows the available thermostat variants and their
supported applications.
Before you start
Before you start selecting a thermostat, we recommend to make the following
preselection:
– Type of main application: fan coil unit, universal, heat pump or VAV
– Application: e.g. 2-pipe with electrical heater
– Type of control output 1: ON/OFF, PWM, 3-position, or DC 0...10 V
– Type of control output 2: ON/OFF, PWM, 3-position, or DC 0…10 V
– Type of inputs: e.g. external room temperature sensor, changeover sensor,
key card switch etc.
– Type of thermostat: standalone, standalone with 7-day timer, or communicating
thermostat
– Thermostat design: wall- or semi flush-mounted
– Other important requirements
Description of RDG range
The RDG represents a compact wall-mounted version and is of elegant and modern design.
This range consists of 2 lines of versatile products – RDG100 line and RDG400 line:
– RDG100 line for fan coil units plus universal (e.g. chilled ceilings or radiators)
and heat pump applications
– RDG400 line for VAV applications
The thermostats are available as standalone versions, standalone with 7-day time program,
and KNX versions tailored for use with Synco 700 via LTE-mode, for integration in Synco
living or BACS (building automation and control system) via S-mode.
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Products range RDG
– RDG100 – the versatile standalone thermostat with ON/OFF and modulating
(PWM or 3-position) outputs
– RDG100T – the versatile standalone thermostat with 7-day time program and same
functionality as RDG100 plus infrared receiver for remote control
– RDG100KN – the versatile communicating thermostat with the same functionality as
RDG100 including KNX interface
– RDG110 – the robust standalone thermostat with relay outputs (SPDT) for applications
with max. 5 A current on the control outputs. This thermostat is the ideal solution for
ON/OFF applications with electrical heater, heat pumps and heat pumps with reversing
valve (RV).
– RDG140 – the modulating thermostat operating on AC 24 V (SELV) with DC 0…10 V
control outputs.
– RDG160 – the energy efficient modulating thermostat for controlling of electronic
commutated fan motors (ECM Fan), operating on AC 24 V (SELV) with DC 0...10 V
outputs for valve and fan
– RDG400 – the versatile standalone thermostat for VAV applications with modulating
and ON/OFF outputs
– RDG400KN – the versatile communicating thermostat with the same functionality as
RDG400, including KNX interface.
On each thermostat, a number of control parameters can be readjusted to optimize the
control performance.
Description of RDF semi flush-mount range
The range represents a compact semi-flush mount solution designed to fit into conduit
boxes with fixing center 60.3 mm (BSI standard BS4662).
The RDF and RDU are 2 lines of versatile and slim products:
– RDF line for fan coil unit and heat pump applications
– RDU line for VAV applications
The thermostats are available as standalone, standalone with 7-day time program and KNX
versions tailored for use with Synco 700 via LTE-mode, for Synco living or for integration in
BACS via S-mode.
Products range RDF
– RDF300 – the versatile standalone thermostat with ON/OFF or modulating 3-position
outputs
– RDF300.02 – offers in addition backlit digital display
– RDF400.01 – the versatile standalone thermostat with 7-day time program and
same functionality as RDF300, plus infrared receiver for remote control and backlit
digital display
– RDF301 – communicating thermostat with the same functionality as RDF300,
including KNX interface and backlit digital display
– RDF301.50 – communicating thermostat with the same functionality as RDF301,
plus switching groups for lighting and blind control via KNX S-mode
– RDF340 – modulating thermostat operating on AC 24 V (SELV) with DC 0…10 V
control outputs
– RDF310.2 – basic standalone thermostat for 2-pipe applications.
– RDF310.21– offers in addition backlit digital display and infrared receiver for
remote control
– RDF410.21 – basic standalone thermostat for 2-pipe applications with 7-day time
program, backlit digital display and infrared receiver for remote control
– RDU340 – the versatile standalone thermostat for VAV applications with modulating
DC 0…10 V and ON/OFF outputs
– RDU341 – communicating thermostat with the same functionality as RDU340,
including KNX interface
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Description of applications
The RDG/RDF thermostats cover the following applications:
Fan coil units via ON/OFF or modulating control outputs:
– 2-pipe system
– 2-pipe system with electrical heater
– 2-pipe system and radiator/floor heating
1
– 4-pipe system
– 4-pipe system with electrical heater
1
– 2-stage heating or cooling system
1
VAV systems via ON/OFF or modulating control outputs:
– Single-duct system
– Single-duct system with electrical heater
– Single-duct system and radiator/floor heating
1
– Single-duct system with heating/cooling coil
1
Chilled/heated ceilings (or radiators) via ON/OFF or modulating control outputs:
– Chilled/heated ceiling
– Chilled/heated ceiling with electrical heater
– Chilled/heated ceiling and radiator/floor heating
1
– Chilled/heated ceiling, 2-stage heating or cooling
1
7
Heat pumps with DX type equipment:
– 1-stage compressor for heating or cooling
– 1-stage compressor for heating or cooling with electrical heater
– 1-stage compressor for heating or cooling and radiator/floor heating
– 1-stage compressor for heating and cooling with reversing valve
– 2-stage compressor for heating or cooling
1
The RDG/RDF offers extensive features and functions
2
– Operating mode: Comfort, Energy-saving and Protection
– Energy-saving functions: external operating mode switchover, 7-day time program,
keycard or window contact, minimum and maximum setpoint limitation, etc.
– Numerous application selectable via DIP switch
– Heating/cooling changeover: automatic or manual
– Control output signals: ON/OFF (triac or relay), PWM, 3-position and DC 0...10 V
– Fan control: automatic or manual fan speed for 1-speed, 3-speed or ECM
3
) fan
– Fan operation: fan enable, heating only, cooling only, fan disable
– Multifunctional inputs: (function selectable)
– Remote temperature sensor
– Heating/cooling changeover sensor or switch
– Operating mode switchover for keycard, window or time switch contact
– Electrical heater release
– Dew point sensor
– Fault input
– 7-day time program
– Timer for prolong presence and absence function
– Keypad lock function
– Backlit digital display
– Infrared remote control
– Reminder for cleaning fan filter
– Floor temperature limitation function
– Various parameters for setpoint adjustment and control setting
– KNX communication interface: Synco700 via LTE mode,
Synco living and BACS (building automation and control system) via S-mode
– Switching groups for lighting and blind control via KNX S-mode
1
Applications covered only with RDG thermostats
2
Feature availability depends on thermostat type
3
Electronic commutated motor, DC 0...10 V
Application Type of control outputs
RDG…
Wall-mounted range
RDF…
Semi flush-mounted range
Two-pipe system
2-pipe (ON/OFF) RDG100... RDG110 RDF300... RDF310...
RDF400... RDF410...
2-pipe mod. (PWM) RDG100...
2-pipe mod. (3-pos.) RDG100... RDF300... RDF400...
2-pipe mod. (DC 0...10 V) RDG140 RDF340
2-pipe mod. (DC 0...10 V) ECM fan control (DC 0...10 V) RDG160
Two-pipe system with el. heater
2-pipe (ON/OFF), with el. heater (ON/OFF) RDG100... RDG110 RDF300... RDF400...
2-pipe (ON/OFF), with el. heater (mod. PWM or 3-pos.) RDG100...
2-pipe mod. (PWM), with el. heater (ON/OFF, PWM or 3-pos.) RDG100...
2-pipe mod. (3-pos.), with el. heater (ON/OFF, PWM or 3-pos.)
RDG100...
2-pipe mod. (DC 0...10 V), with el. heater (DC 0...10 V) RDG140 RDF340
2-pipe mod. (DC 0...10 V), with el. heater (DC 0...10 V).
ECM fan control (DC 0...10 V)
RDG160
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Fan coil – application overview
Application description
– Control sequences for heating and/or cooling,
1 or 2 stages
– Multifunctional inputs for keycard contact,
external sensor, etc.
– Automatic or manual heating/cooling changeover
– Automatic or manual fan speed
– 3-speed, 1-speed and mod. (ECM) fan control
(DC 0...10 V)
– Fan operation selectable in heating and cooling
(enable, disable, only heating or only cooling)
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Application Type of control outputs
RDG…
Wall-mounted range
RDF…
Semi flush-mounted range
Two-pipe system and radiator heating
2-pipe (ON/OFF) and radiator (ON/OFF) RDG100... RDG110
2-pipe (ON/OFF) and radiator (mod. PWM or 3-pos.) RDG100...
2-pipe mod. (PWM) and radiator (ON/OFF, PWM or 3-pos.) RDG100...
2-pipe mod. (3-pos.) and radiator (ON/OFF, PWM or 3-pos.) RDG100...
2-pipe mod. (DC 0...10 V) and radiator (DC 0...10 V) RDG140
2-pipe mod. (DC 0...10 V) and radiatior (DC 0...10 V).
ECM fan control (DC 0...10 V)
RDG160
Four-pipe system
4-pipe (ON/OFF) RDG100... RDG110 RDF300... RDF400...
4-pipe mod. (PWM) RDG100...
4-pipe mod. (3-pos.) RDG100...
4-pipe mod. (DC 0...10 V) RDG140 RDF340
4-pipe mod. (DC 0...10 V). ECM fan control (DC 0...10 V) RDG160
Four-pipe system with el. heater
4-pipe (ON/OFF) with el. heater (ON/OFF) RDG100…
4-pipe (ON/OFF and 3-pos.) with el. heater (ON/OFF) RDG100…
4-pipe mod. (PWM) with el. heater (ON/OFF) RDG100…
4-pipe mod. (PWM and 3-pos). with el. heater (ON/OFF) RDG100…
Two-stage, cooling or heating
2-stage (ON/OFF) heating or cooling RDG100... RDG110
2-stage mod. (PWM) heating or cooling RDG100...
2-stage mod. (3-pos.) RDG100...
2-stage mod. (DC 0...10 V) RDG140
2-stage mod. (DC 0...10 V). ECM fan control (DC 0...10 V)
RDG160
Abbreviation
ON/OFF: 2-position control
3-pos.: Modulating 3-position control signal
PWM: Pulse Width Modulation control signal
DC 0...10 V: Modulating DC 0...10 V control signal
ECM fan: Electronic Commutated Motor for fan, DC 0...10 V
el. heater: Electrical heater
mod. output: Modulating output
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Product Application Standalone
Standalone
with
7-day time
program
Communicating
KNX
Wall-mounted units: RDG
RDG100…
Versatile thermostats with
control output signal (ON/OFF)
or mod. (PWM or 3-pos.).
– 2-pipe (ON/OFF, PWM or 3-pos)
– 2-pipe with electrical heater
– FCU: (ON/OFF, PWM or 3-pos)
– el. heater: (ON/OFF, PWM or 3-pos.)
– 2-pipe and radiator
– FCU: (ON/OFF, PWM or 3-pos)
– radiator: (ON/OFF, PWM or 3-pos.)
– 4-pipe (ON/OFF, PWM and/or 3-pos)
– 4-pipe with electrical heater
– FCU: (ON/OFF, PWM and ON/OFF, PWM or 3-pos)
– el. heater: (ON/OFF)
– 2-stage heating or cooling
– FCU: (ON/OFF, PWM or 3-pos)
RDG100 RDG100T RDG100KN
RDG110
Robust thermostat with
relay outputs (SPDT) for
ON/OFF – control sequences
– 2-pipe (ON/OFF)
– 2-pipe (ON/OFF) with el. heater (ON/OFF)
– 2-pipe (ON/OFF) and radiator (ON/OFF)
– 4-pipe (ON/OFF)
– 2-stage (ON/OFF) heating or cooling
RDG110
RDG140
Thermostat for mod. control
sequences with (DC 0...10 V)
output signals
– 2-pipe (DC 0...10 V)
– 2-pipe (DC 0...10 V) with el. heater (DC 0...10 V)
– 2-pipe (DC 0...10 V) and radiator (DC 0...10 V)
– 4-pipe heating (DC 0...10 V) and cooling (DC 0...10 V)
– 2-stage (DC 0...10 V) heating or cooling
RDG140
RDG160
Thermostat for mod. control
sequences with (DC 0...10 V)
output signals for valves and
fan control (ECM) DC 0...10 V
– 2-pipe (DC 0...10 V)
– 2-pipe (DC 0...10 V) with el. heater (DC 0...10 V)
– 2-pipe (DC 0...10 V) and radiator (DC 0...10 V)
– 4-pipe heating (DC 0...10 V) and cooling (DC 0…10 V)
– 2-stage (DC 0...10 V) heating or cooling
RDG160
Semi flush-mounted units: RDF
RDF300../400…*
Versatile thermostats with
relay ouputs: ON/OFF or 3-pos.
– 2-pipe
– FCU: (ON/OFF or 3-pos)
– 2-pipe (ON/OFF) with el. heater (ON/OFF)
– 4-pipe (ON/OFF)
RDF300... RDF400... RDF301...
RDF310…/410..*
Basic thermostats for 2-pipe
application
– 2-pipe (ON/OFF)
RDF310… RDF410.21
RDF340
Thermostat for mod. control
sequences with (DC 0...10 V)
output signals
– 2-pipe (DC 0...10 V)
– 2-pipe (DC 0...10 V) with el. heater (DC 0...10 V)
– 4-pipe heating (DC 0...10 V) and cooling (DC 0...10 V)
RDF340
*Variants
RDF300 Basic version
RDF300.02 Unit with backlight
RDF300.02/SL Unit with backlight, silver
RDF400.01 Basic version
RDF400.01/SL Unit with backlight, silver
RDF301 Communicating unit
RDF301.50 Communicating unit with 4 buttons for light and shutter
RDF310.2 Basic version
RDF310.21 Basic version with backlight and infrared remote control
RDF410.21 Basic version with backlight, 7-day time program and infrared remote control
Fan coil – product overview
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