Siemens RDF300 Series User manual

Facts
HVAC Products
April 2009
No. 32X049EN
32, Room thermostats
Sales release new RDF/RDU
Product No. (ASN):
RDF300
RDF300.02
RDF300.02/SL
RDF340
RDU340
Target audience:
Product Managers
Sales Managers
Sales Staff
Support Staff
Extension of semi flush-
mounted room
thermostat range
For 2-pipe and 4-pipe fan coil / compressor and
single-duct VAV applications.
RDF300...
RDF300.02/SL
RDF340
RDU340

32X049EN - April 2009 – HVAC Products 2
Contents
Introduction.............................................................................................................................................3
Product range .........................................................................................................................................4
Product replacement...............................................................................................................................5
Sales release..........................................................................................................................................5
Documentation........................................................................................................................................5
Functions, features and benefits.............................................................................................................6
Technical data.......................................................................................................................................12
Peripheral devices and accessories .....................................................................................................14

32X049EN - April 2009 – HVAC Products 3
Extension of semi flush-mounted room temperature
controller range
Introduction
2 years ago, Siemens introduced the first semi flush-mount room temperature controllers RDF310 and
RDF410. Customer feedback is very positive and sales volumes are exceeding expectations resulting in
the development of a range extension, which is now available as room temperature controllers
RDF300…, RDF340 and RDU340.
The new semi flush-mount room temperature controllers RDF (phase 2) come with the same stylish and
slim look & feel of the already introduced semi flush-mount RDF (phase 1), but with additional features
and benefits. These include additional applications and multifunctional inputs. This makes these new
products especially suitable for hotel guest rooms, offices and apartments.
New applications:
•Fan coil units
- 2-pipe or 4-pipe on/off fan coil units / compressors in DX type equipment
- 2-pipe on/off and electric heater fan coil units / compressors in DX type equipment
- 2-pipe with 3-position valve fan coil units
•VAV / CAV systems
- Single-duct
- Single-duct and electric heater
New main features:
•Single- or 3-speed automatic or manual fan with advanced fan control function
•2 multifunctional inputs for external sensor, keycard or contact switch, etc.
•Modulating control outputs (DC 0…10 V signal)
•Automatic or manual heating / cooling changeover
•Temperature limitation for underfloor heating
•Minimum and maximum limitation of air flow signal (DC 0…10 V output)
•AC 230 V or AC 24 V operating voltage
The semi flush-mount room temperature controllers are designed to fit into an 86 x 86 x 47 mm conduit
box with fixing centers 60.3 mm (reference BS 4662 / IEC 60670). Optional conduit boxes (ARG71) are
also available as accessory items. Another accessory is the plastic mounting bracket (ARG70.3) for
conduit boxes with insufficient depth. The ARG70.3 mounting bracket is mounted between the wall and
the temperature controller to increase the headroom in the box by 10 mm.
Release of the next phase (phase 3) of the semi flush-mount room temperature controller range
extension is scheduled for the 3nd quarter of 2009 and will include variants with time program and
Konnex field bus communication.

32X049EN - April 2009 – HVAC Products 4
Product range
RDF300… – room temperature controllers for fan coil units and
DX type equipment
RDF340 – room temperature controller for fan coil units with
DC 0…10 V control valves
RDU340 – room temperature controller for VAV / CAV systems
Main features of RDF300:
•Slim, stylish and semi flush-mount design
•Large display
•Applications:
- 2-pipe on/off
- 4-pipe on/off
- 2-pipe on/off with electric heater
- 2-stage heating
- 2-pipe with 3 position control valve
•On/off and modulating PI/P-control
•2 multifunctional inputs for energy saving and
maintenance options
•Single- or 3-speed fan control (automatic / manual)
•Minimum and maximum setpoint limitation
•Temperature limitation for underfloor heating
•AC 230 V operating voltage
Additional features of RDF300.02..
•Backlit LCD
•Silver color (RDF300.02/SL)
RDF300
RDF300.02
Main features:
•All features of RDF300
•Applications:
- 2-pipe with DC 0…10 V control valve
- 4-pipe with DC 0…10 V control valve
- 2-pipe with DC 0…10 V control valve and
electric heater (with additional converter)
•AC 24 V operating voltage
RDF300.02/SL
Main features:
•Slim, stylish and semi flush-mount design
•Large display
•Applications:
- Single-duct
- Single-duct with electric heater (on/off)
•Modulating PI/P-control with DC 0…10 V output signal
•2 multifunctional inputs for energy saving and
maintenance options
•Minimum and maximum setpoint limitation
•Adjustable minimum and maximum limitation of output
signal DC 0…10 V
•AC 24V operating voltage

32X049EN - April 2009 – HVAC Products 5
Product replacement
The RDF300…, RDF340 and RDU340 room temperature controllers do not replace existing products.
Sales release
The RDF300, RDF300.02, RDF300.02/SL, RDF340 and RDU340 are open for ordering and available
from DC Nuremberg.
Documentation
The data sheets and basic documentation are available :
Products Documentation Document no.
Data sheet N3076
Basic documentation CE1P3076
Mounting / Installation instructions M3076
Operating instructions CE1B3076
CE declaration CE1T3076
RDF300… / RDF340…
Environmental product declaration CE1E3076
Data sheet N3078
Basic documentation CE1P3078
Mounting / Installation instructions M3078
Operating instructions CE1B3076
CE declaration CE1T3076
RDU340
Environmental product declaration CE1E3076
The new RDF are easy-to-understand devices that do not require special training. People familiar with
the existing RDF will easily understand the functionality of the new semi flush-mounted room
temperature controllers.
For questions please get in touch with:
George Voulvoutzis, Product Manager in Greece, phone [phone], e-mail:
[email protected]
For questions relating to technical topics about the AcvatixTM range of valves and actuators, please get in
touch with :
Georgios Leonardos, phone [phone], e-mail: [email protected]
Konstantinos Lontidis, phone [phone], e-mail: [email protected]
Kind regards
Siemens A.E.
Industry Sector
Building Technologies Division
HVAC Products
George Voulvoutzis George Kottaras
Product Manager Division Regional Head HVP

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Functions, features and benefits
Slim and stylish thanks to semi flush-mounted design
Features / functions Benefits
The new semi flush-mounted room
temperature controllers offer a very slim,
modern and stylish look.
The ergonomic user interface with a large
display and push buttons make this
controller especially user-friendly.
A variant in silver is available as an option.
Backlit LCD (optional)
Features / functions Benefits
The backlit LCD with soft blue color
improves readability in dark environments
and at night.
Display of setpoint or current room temperature
Features / functions Benefits
As an alternative to displaying the current
room temperature, the RDF / RDU can be
configured to display the setpoint only.
This simplifies user operation and
particularly interesting for hotel rooms.
Concurrent display of degree C and F
Features / functions Benefits
Showing the setpoint 24.5 oC and 76 oF simultaneously
The room temperature controller can
display the temperature both in degree
Celsius and Fahrenheit. This is especially
helpful in hotels with guests from overseas.
Current
room temperature

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Numerous applications in one model
Features / functions Benefits
One model (ASN) offers numerous
applications easily selected via DIP switch.
This reduces the number of ASNs and
simplifies ordering and stocking.
Multifunctional inputs
Features / functions Benefits
2 multifunctional inputs with freely
assignable functions:
oExternal / return air sensor for
temperature acquisition at an
alternative location
oHeating / cooling changeover sensor:
Automatic changeover for more
convenience
oOperating mode switchover contact:
A useful function for hotel rooms with
keycard, commercial buildings with
time clock, etc. that helps save energy
when the specific area is not in use.
oDewpoint sensor input:
In connection with a dewpoint sensor
to prevent condensation and to avoid
damage to the building on chilled
ceiling applications.
oElectric heater enable contact:
Enabling / disabling of electric heater
from remote for tariff regulation, energy
saving purposes, etc.
oFault input contact:
Digital input to signal faults and
maintenance reminder (e.g. filter
cleaning) to help extend the life of
equipment.

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Single- or 3-speed fan control (automatically or manually)
Features / functions Benefits
Automatic fan mode allows the room
temperature controller to automatically
vary the fan speed depending on setpoint
and current room temperature, thereby
improving comfort and saving energy.
Manual fan mode allows a constant fan
speed setting (low, medium, high) selected
by users based on their needs.
Clean fan filter reminder
Features / functions Benefits
When the fan operating hours reach the
preset time, a “FIL” message appears
on the display.
This reminder helps you carry out regular
maintenance on the fan coil unit.
Setpoint limitation
Features / functions Benefits
Maximum and minimum setpoint limitation:
The adjustable range of the setpoint can
be limited. This is especially helpful in
public areas where energy consumption is
to be controlled, resulting in lower electrical
costs.
For example, the property manager can
set the minimum setpoint for cooling to
25 oC and the maximum setpoint for
heating to 18 oC in public areas of a
shopping mall or school. This allows for
better management of energy
consumption, thus reducing electrical
costs.

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Temperature limitation for underfloor heating.
Features / functions Benefits
Function for underfloor heating.
A floor temperature sensor, connected to
the multifunctional input, monitors the floor
temperature.
This function improves comfort and
protects the floor on applications with floor
heating
Keypad lock
Features / functions Benefits
Automatic / manual lock of the keypad
helps prevent unauthorized readjustment
on the room temperature controller.
Adjustable control parameters
Minimum output ON time / OFF time (compressor short cycle protection)
Features / functions Benefits
The room temperature controller can
protect the compressor by limiting the
on/off switching cycle, thereby reducing
wear and tear and increase the lifetime of
the compressor. Simply speaking, we can
set a minimum on/off time via the control
parameters to control the opening and
closing actions if the user adjusts the
setpoint or heating / cooling mode
changeover incorrectly.
Features / functions Benefits
Many control parameters can be adjusted
to meet individual needs. This gives high
flexibility and enables the controller to
adapt to any type of application.
Keypad is locked.
Can be unlocked by
pressing the
operating mode
button for
7 seconds

32X049EN - April 2009 – HVAC Products 10
Easy to install
Features / functions
The temperature controller is fast-acting and easy to install: (1) wire, (2) mount and (3)
snap – no bothersome ribbon cable or dangerous opening with mains voltage.
Important: Please verify to ensure the controller fits respective conduit box. The
controller requires at least 53 mm (W) x 68 mm (H) x 46 mm (D) for mounting in the
rectangular conduit box with fixing center 60.3 mm.
(1) (2) (3)