Siemens RDF300, RDF340, RDF400, RDF300.02, RDF400.01 Documentation
s
RDF300
,
RDF300.02
,
RDF340 RDF400.01
Semi-flush-mounted room temperature controllers
for Fancoils, with LCD
RDF300…/RDF340.../RDF400…
Basic Documentation
Edition: 1.1
CE1P3076en
28 Aug 2008
Building Technologies
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Siemens RDF300…/RDF340.../RDF400… Basic Documentation CE1P3076en
Building Technologies Contents 28 Aug 2008
Table of contents
1 About this document..............................................................................3
1.1 Revision history.........................................................................................3
1.2 Reference documents ...............................................................................3
1.3 Before you start.........................................................................................3
1.3.1 Copyright...................................................................................................3
1.3.2 Quality assurance .....................................................................................3
2 Summary..................................................................................................4
2.1 Brief description ........................................................................................4
2.2 Features ....................................................................................................4
2.3 Type summary...........................................................................................5
2.4 Equipment combinations...........................................................................6
2.5 Accessories ...............................................................................................7
2.6 Ordering ....................................................................................................7
3 Use............................................................................................................7
4 Functions.................................................................................................8
4.1 Temperature control ..................................................................................8
4.2 Operating modes.......................................................................................9
4.3 Setpoints .................................................................................................10
4.4 Applications.............................................................................................11
4.5 Additional features ..................................................................................12
4.6 Control sequences ..................................................................................14
4.6.1 2-pipe fan coil unit ...................................................................................14
4.6.2 2-pipe fan coil unit with electrical heater .................................................15
4.6.3 4-pipe fan coil unit ...................................................................................17
4.7 Control output..........................................................................................19
4.8 Fan control ..............................................................................................20
4.9 Multifunctional input ................................................................................22
4.10 Auto Timer (RDF400… only)...................................................................23
4.11 Error handling..........................................................................................25
4.12 Infrared remote control............................................................................25
4.13 DIP switch ...............................................................................................25
4.14 Control parameters .................................................................................26
5 Handling.................................................................................................29
5.1 Mounting and installation ........................................................................29
5.2 Operating Instructions .............................................................................30
5.3 Disposal...................................................................................................30
6 Engineering............................................................................................31
6.1 Connection terminals ..............................................................................31
6.2 Connection diagrams ..............................................................................31
6.2.1 Water-based fan coil applications with RDF300.../RDF400....................31
6.2.2 Compressor-based applications with RDF300.../RDF400... ...................32
6.2.3 Water-based fan coil applications with RDF340... ..................................33
7 Mechanical design................................................................................34
7.1 Dimensions..............................................................................................35
8 Technical data........................................................................................36
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Siemens RDF300…/RDF340.../RDF400… Basic Documentation CE1P3076en
Building Technologies 1BAbout this document 28 Aug 2008
1 About this document
1.1 Revision history
Edition Date Changes Section Pages
1.0 10 July 2008 First edition
1.1 28 Aug 2008 Left column in table 4.4 Applications 11
1.2 Reference documents
Ref. Document titel Type of document Document No.
N3076 Semi-flush-mounted room temperature
controllers with LCD
Datasheet CE1N3076en
B3076 Operating Instructions CE1B3076en
M3076 Mounting Instructions CE1M3076
1.3 Before you start
1.3.1 Copyright
This document may be duplicated and distributed only with the express permission
of Siemens, and may be passed only to authorized persons or companies with the
required technical knowledge.
1.3.2 Quality assurance
These documents have been prepared with great care:
• The contents of all documents are checked at regular intervals
• Any corrections necessary are included in subsequent versions
• Documents are automatically amended as a consequence of modifications and
corrections to the products described
Please ensure that you are aware of the latest revision date of the documentation.
If you find any lack of clarity while using this document, or if you have any criticisms
or suggestions, please contact the product manager in your nearest branch office,
or write directly to the support team at Headquarters in Zug (see below).
Support address:
Siemens Switzerland Ltd.
Building Technologies Group
International Headquarters
Field Support 5500
Gubelstrasse 22
6301 Zug, Switzerland
Tel. +41 41 724 5500
Fax. +41 41 724 5501
E-mail: fieldsupport-zug.ch.sbt@siemens.com
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Building Technologies 2BSummary 28 Aug 2008
2 Summary
2.1 Brief description
The devices support:
– 2-pipe, 2-pipe with electrical heater and 4-pipe fan coil units
– Compressors in DX-type equipment
• RDF300/RDF400 AC 230 V operating voltage, on/off or 3-position control
outputs
• RDF340… AC 24 V operating voltage, DC 0…10 V control outputs
• Output for 3-speed or 1-speed fan
• Two multifunctional inputs for keycard contact, external sensor, etc.
• Operating modes: Comfort, Energy Saving and Protection
• Automatic or manual heating/cooling changeover
• Adjustable commissioning and control parameters
• Minimum and maximum setpoint limitation
• Mounting on recessed rectangular conduit box, 60.3 mm fixing centers
Additional RDF300.02 features
• Backlit LCD
Additional RDF400.01 features
• Backlit LCD
• Infrared remote control receiver
• Auto Timer mode with 8 programmable timers
2.2 Features
• Maintain room temperature via built-in temperature sensor or external room
temperature / return air temperature sensor
• Automatic or manual changeover between heating and cooling mode
• Select applications via DIP switches
• Select operating mode via the operating mode button on the controller
• Single or 3-speed fan control (automatic or manual)
• Display current room temperature or setpoint in °C and/or °F
• Minimum and maximum setpoint limitation
• Keypad lock (automatic and manual)
• Two multifunctional inputs, freely selectable for:
– Operating mode switchover contact (key card)
– Automatic heating/cooling changeover sensor
– External room temperature or return air temperature
– Dewpoint sensor
– Electrical heater enable
– Alarm input
• Advanced fan control function, i.e. 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 filters
• Floor heating temperature limit
• Reload factory settings for commissioning and control parameters
• Weekly time program: 8 programmable timers to switch over between Comfort
and Economy mode (RDF400.01)
• Optional backlit LCD (RDF300.02/RDF400.01)
• Optional infrared remote control ( RDF400.01)
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2.3 Type summary
Product
number
Features
Control output
Operating
voltage
on/ off 3pt DC 0..10 V
Time
program
Backlit
LCD
Infrared
receiver
1)
Housing
color
RDF300 AC 230 V
white
RDF300.02 AC 230 V
white
RDF300.02/SL AC 230 V
silver
RDF400.01 AC 230 V
white
RDF400.01/SL AC 230 V
silver
RDF340 AC 24 V
white
1) Order infrared remote control separately
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2.4 Equipment combinations
Type of unit Product number
Data
sheet
Infrared remote control
IRA210
3059
Cable temperature sensor
QAH11.1
1840
Room temperature sensor
QAA32
1747
Condensation detector /
Supply unit
QXA2000 /
AQX2000
1542
Electromotive on/off valve and
actuator
(only available in AP, UAE, SA and IN)
MVI…/MXI…
4867
Electromotive on/off actuator
SFA21...
4863
Thermal actuator (for radiator
valve)
STA21...
4893
Thermal actuator
(for small valves 2.5 mm)
STP21...
4878
Zone valve actuators
(only available in AP, UAE, SA and IN)
SUA…
4830
Electrical actuator, 3-position
(for radiator valve)
SSA31...
4893
Electrical actuator, 3-position
(for small valve 2,5 mm)
SSP31…
4864
Electrical actuator, 3-position
(for small valve 5,5 mm)
SSB31...
4891
Electromotive actuator, 3-position
(for valves 5.5 mm)
SQS35…
4573
Electrical actuator, DC 0..10V
(for radiator valve)
SSA61...
4893
Electrical actuator, DC 0..10V
(for small valve 2,5 mm)
SSP61…
4864
Electrical actuator, DC 0..10V
(for small valves 5.5 mm)
SSB61...
4891
Electromotive actuator, DC 0..10V
(for valves 5.5 mm)
SQS65…
4573
Thermal actuator, DC 0..10V
(for small valves and radiator
valves)
STS61
4880
on/off actuators
3-position actuators
DC 0..10 V actuators
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Building Technologies 3BUse 28 Aug 2008
2.5 Accessories
Type of unit
Product
number
Data
sheet
Changeover sensor mounting kit (50 pcs/package)
ARG86.3
1840
Adapter plate 82mm x 82 mm x 10 mm for conduit
ARG70.3
--
2.6 Ordering
When ordering, indicate both product number and name:
E.g. RDF300 room temperature controller
Order the IRA210 infrared remote control separately.
Order valve actuators separately.
3 Use
To control the room temperature in individual rooms and zones that are:
• Heated or cooled with 2-pipe fan coil units
• Heated or cooled with 2-pipe fan coil units with electrical heater
• Heated and cooled with 4-pipe fan coil units
• Heated or cooled with compressor in DX-type equipment
• Heated or cooled with compressor in DX-type equipment with electrical heater
• Heated and cooled with compressor in DX-type equipment
The RDF300…/RDF400… 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
The RDF340… controls:
• One single or 3-speed fan
• One or two DC 0…10 V valve actuators
• One DC 0…10 V valve actuators and one modulating
electrical heater (DC 0…10 V)
Use in systems with:
• Heating or cooling mode
• Automatic heating/cooling changeover
• Manual heating/cooling changeover
• Heating and cooling mode (e.g. 4-pipe system)
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4 Functions
4.1 Temperature control
The setting of he control parameters (P01 etc., mentioned throughout the
document) is described in section 4.14.
The co
ntroller acquires the room temperature via built-in sensor, external room
temperature sensor (QAA32), or external return air temperature sensor (QAH11.1),
and maintains the setpoint by issuing actuator control commands to heating and/or
cooling equipment. The following control outputs are available depending on the
controller type:
• On/off control (2-position) with RDF300…/RDF400…
• Modulating PI control with 3-position control output on RDF300…/RDF400…
• Modulating PI control with DC 0..10 V control output on RDF340
The switching differential or proportional band is 2 K for heating mode and 1 K for
cooling mode (adjustable via parameters P30 and P31).
The integral action time for continuous PI control is 5 minutes (adjustable via
parameter P35).
The display shows the acquired room temperature or the setpoint for the current
operating mode, selectable via parameter P06. The factory setting displays the
current room temperature.
Use parameter P04 to display the room temperature or setpoint in °F rather than
°C as needed.
If the controller is used in a system with manual heating/cooling changeover
(P01=2), the heating
and cooling symbols on the display show the fan coil or
terminal unit status. Thus, the symbols are displayed even when the controller
operates in the neutral zone. For all other cases, the heating
and cooling
symbols are displayed when the heating or cooling output is energized.
Concurrent display of the current temperature or setpoint in °C and in °F
(parameter P07) is possible on the controller without weekly time program.
General note
Display
/
Concurrent display of
°C and °F
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4.2 Operating modes
Select the controller's operating mode via operating mode button
on the controller or operating mode input (e.g. keycard occupancy sensor, when X1 or X2 set to
3 (P38, P40)). A corresponding setpoint is used to maintain the room temperature
at the desired level depending on the active operating mode. The following
operating modes are available:
In Comfort mode, the controller maintains the setpoint which can be adjusted via
the +/- buttons. The fan can be set to automatic or manual fan speed: Low, medium
or high.
Energy Saving mode helps save energy. Select it by pressing the operating mode
button
if parameter P02 is set accordingly, or if the external operating mode
switchover contact is active (e.g. window contact).
If the external operating mode switchover contact is active, user operations are
ineffective and “OFF” is displayed. Control will then be according to energy saving
setpoints (P11 and P12).
In Standby mode, the system is
– protected against frost (factory setting 8°C, can be disabled or changed via P65)
– protected against overheating (factory setting OFF, can be enabled or changed
via P66)
In Auto Timer mode
AUTO
, the controller automatically changes from Comfort to
Energy Saving mode as per the 8 preprogrammed timers. The display shows the
Auto Timer mode symbol
AUTO
along with the symbol for the current operating mode
(Comfort
or Economy ).
Automatic is the default fan speed in Auto Timer mode.
Comfort mode
Energy Saving
Note
Standby
/Protection mode
Auto Timer mode
AUTO
(only with RDF400...)
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4.3 Setpoints
The setpoint in Comfort mode can be adjusted via the +/- buttons.
For energy saving purposes, the setpoint adjusting range can be limited to
minimum (P09) and maximum (P10).
• If the minimum limit P09 is set lower than the maximum limit P10, both heating
and cooling are adjustable between these two limits.
• For heating or cooling applications (e.g. 2-pipe)
– The setting range in cooling mode is from P09…40° instead of 5…40°
– The setting range in heating mode is from 5…P10° instead of 5…40°
• For heating and cooling applications (e.g. 4-pipe)
– P09 is the setpoint for cooling and P10 the setpoint for heating;
– the setpoint can no longer be adjusted via the +/- buttons
Examples 2-pipe Heating OR cooling 4-pipe Heating AND cooling
P09 < P10
5°C 40°C25°C18°C
P10P09
Cooling setpoint adjustable 18…25°C
Heating setpoint adjustable 18…25°C
5°C 40°C25°C18°C
P10P09
Cooling setpoint adjustable 18…25°C
Heating setpoint adjustable 18…25°C
P09 ≥ P10
5°C 40°C25°C21°C
P09P10
Cooling settable 25…40°C
Heating settable 5…21°C
Cooling fixed = 25°C (P09)
Heating fixed = 21°C (P10)
If the “Temporary setpoint function” is enabled via parameter P69, the setpoint
adjusted via the +/- buttons is set back to the Comfort basic setpoint when the
operating mode changes.
The factory setting for the Comfort basic setpoint is 21 °C and can be changed via
parameter P08.
Use control parameters P11 and P12 to adjust the Economy mode setpoints.
The heating setpoint is factory-set to 15 °C and to 30 °C for cooling.
Use control parameters P65 and P66 to adjust the Standby mode setpoints.
The heating setpoint is factory-set to 8 °C (frost protection) and to OFF for cooling.
If a setpoint is set to OFF (P65, P66), the controller does not maintain the setpoint
in the corresponding mode (heating or cooling).
This means no protective heating or cooling function and thus risk of frost in the
heating mode or risk of overheat in cooling mode!
Comfort mode
Setpoint limitation
P09 < P10
P09 ≥ P10
Temporary setpoint
Energy Saving
mode
Standby mode
Caution
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4.4 Applications
The controller supports following applications, which can be configured by DIPswitches on the inner side of the controller front panel. Depending on the type,
on/off or modulating control outputs are available.
Note: The diagrams above show only the water based fan coil application, but not compressor!
Application and
Control output
Type
reference
DIP-
switch
Diagram
2-pipe fan coil unit,
heating and cooling
2-pipe/1-stage compressor
on/off
RDF300
RDF400
ON
1 2
2-pipe
modulating, 3-position
RDF300
RDF400
ON
1 2
2-pipe
modulating, DC 0…10 V
RDF340
ON
1 2
3076D20
(B1)
M1
Y1
T
B2
T
T
(B1)
4-pipe fan coil unit,
heating and cooling
4-pipe/compressor for H+C
on/off
RDF300
RDF400
ON
1 2
4-pipe modulating,
DC 0…10 V
RDF340
ON
1 2
T
Y2
Y1
M1
3076D22
(B1)
T
(B1)
2-pipe fan coil unit
with electrical heater,
heating or cooling with
auxiliary heater
2-pipe/1-stage compressor
with electrical heater on/off
RDF300
RDF400
ON
1 2
2-pipe with electrical heater
modulating, DC 0…10 V
Note: Modulating electrical heater
RDF340
ON
1 2
Y1
M1
3076D21
T
B2
E1
T
(B1)
T
(B1)
Key Y1 Heating or heating/cooling valve actuator M1 3-speed or single-speed fan
Y2 Cooling valve actuator B1 Return air temperature sensor or
external room temperature sensor (optional)
E1 Electrical heater B2 Changeover sensor (optional)
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Use with one or two valves for heating and cooling, heating/cooling with
changeover, heating only, or cooling only.
Use with one 1-stage compressor for heating and cooling, or cooling only, or
heating only.
Thanks to a flexible fan control, the RDF3xx / RDF4xx can also be used in
universal applications, e.g. fan coil-based cooling and floor heating, or chilled
ceiling and electrical heater etc. See also section 4.8 “Fan control”.
4.5 Additional features
The water temperature acquired by the changeover sensor (QAH11.1 + ARG86.3)
is used to change over from heating to cooling mode and vice-versa. When the
water temperature is above 28 °C (parameter P37), the controller changes over to
heating mode, and to cooling mode when below 16 °C (parameter P36). If the
water temperature is between the 2 changeover points immediately after power up,
the controller starts in heating mode.
The water temperature is acquired at 30-second intervals and the operating state is
updated accordingly.
16
M
T
w
[°C]
28
M Operating mode Cooling mode
T
w
Water temperature Heating mode
The QAH11.1 cable temperature sensor for automatic heating/cooling changeover
can be replaced by an external switch for manual, remote changeover:
3076Z03
X2
M
T
X2
M
QAH11.1
T °C
Contact open heating mode
Contact closed cooling mode
The sensor or switch can be connected to the input terminal of X2 (factory setting)
or X1 depending on the commissioning of inputs X1 and X2. See also section 4.9
“Multifun
ctional input”.
The controller acquires the room temperature via built-in sensor, external room
temperature sensor (QAA32), or external return air temperature sensor (QAH11.1)
connected to multifunctional input X1 or X2.
Inputs X1 or X2 need to be commissioned accordingly. See section 4.9 “Multifunc
tional input”.
Water-based fan coil
application
Compressor-based
application
Universal applications
Automatic H/C
changeover
Remote heating/
cooling changeover
External / return air
temperature sensor
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