s RDF300, RDF300.02, RDF340, RDF600 RDF400.01, RDF600T Semi-flush-mounted room thermostats for Fancoils, with LCD RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation Edition: 2.
Table of contents 1 1.1 1.2 1.3 1.3.1 1.3.2 1.3.3 About this document ..............................................................................3 Revision history.........................................................................................3 Reference documents ...............................................................................3 Before you start .........................................................................................3 Copyright ...................................
1 About this document 1.1 Revision history Edition Date Changes Section Pages 2.0 Oct 2012 Added RDF600… All All 1.1 28 Aug 2008 Left column in table 4.4 Applications 12 1.0 10 July 2008 First edition 1.2 Reference documents Ref. Document titel Type of document Document No. N3076 Datasheet CE1N3076 B3076 Semi-flush-mounted room temperature controllers with LCD Operating instructions M3076 Mounting instructions RDF3...
1.3.3 Document use / request to the reader Before using our products, it is important that you read the documents supplied with or ordered at the same time as the products (equipment, applications, tools, etc.) carefully and in full. We assume that persons using our products and documents are authorized and trained appropriately and have the technical knowledge required to use our products as intended.
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… / RDF600… : 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.
RDF300 RDF300.02 RDF400.01 RDF340 RDF600 RDF600T RDF300 RDF300.02 RDF400.01 RDF340 S55770-T291 S55770-T292 AC 230V AC 230V AC 230V AC 24V AC 230V AC 230V conduit 2) box Suitable DC 0..10V Infrared 1) receiver 3pt LCD on/off Backlit Control outputs program Features Time Stock number Voltage Product number Type summary Operating 2.
2.4 Equipment combinations Product number Data sheet IRA211 3060 Cable temperature sensor QAH11.1 1840 Room temperature sensor QAA32 1747 QXA2000 / AQX2000 1542 MVI…/MXI… 4867 SFA21... 4863 STA23... STA21... *) STP23... STP21... *) 4884 4893 *) 4884 4893 *) SUA… 4832 SSA31... 4893 SSP31… 4864 SSB31... 4891 SQS35… 4573 SSA61... 4893 SSP61… 4864 SSB61...
2.5 Accessories Designation Changeover mounting kit (50 pcs/package) Plastic mounting bracket for semi-flushmount thermostats RDF3... RDF400… for increasing the headroom in the conduit box by 10mm Conduit box for semi-flush mounted thermostat RDF3... RDF400… 3 Data Sheet Product no. ARG86.3 N3009 ARG70.
General note 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 controller 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.
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: Comfort mode In Comfort mode, the controller maintains the setpoint which can be adjusted via the +/- buttons.
4.3 Room temperature setpoints Comfort mode The setpoint in Comfort mode can be adjusted via the +/- buttons. Setpoint limitation For energy saving purposes, the setpoint adjusting range can be limited to minimum (P09) and maximum (P10). P09 < P10 If the minimum limit P09 is set lower than the maximum limit P10, both heating and cooling are adjustable between these two limits. P09 ≥ P10 For heating or cooling applications (e.g.
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. 2-pipe/1-stage compressor on/off 2-pipe fan coil unit, heating and cooling 2-pipe modulating, 3-position Type reference DIPswitch RDF300... Diagram 3076D20 Application and Control output ON RDF400... 1 RDF600... 2 T RDF300... B2 T (B1) ON RDF400... 1 RDF600...
Water-based fan coil application Use with one or two valves for heating and cooling, heating/cooling with changeover, heating only, or cooling only. Compressor-based application Use with one 1-stage compressor for heating and cooling, or cooling only, or heating only. Universal applications 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.
Purge function The changeover sensor is tasked with initiating changeover from heating to cooling mode based on the acquired water temperature. We recommend activating the purge function (parameter P50) with 2-port valves. This function ensures correct acquisition of the medium temperature even if the 2-port valve is closed for an extended period of time. The valve is then opened for 1 to 5 minutes (adjustable) at 2-hour intervals during off-hours.
Keypad lock If the keypad lock function is enabled by parameter P14, then the keypad will be locked or unlocked by pressing 7 seconds (RDF600...: 3 seconds) on the operating mode button . If “Auto lock” is configured, then the controller will automatically lock the keypad 30 seconds after the last adjustment. 4.
4.6.1 2-pipe fan coil unit On/off output Heating or cooling In 2-pipe applications, the controller controls a valve in heating/cooling mode with changeover (automatic or manual), heating only mode, or cooling only mode. Cooling only is factory set (P01=1). Control sequence on/off output The diagram below shows the control sequence for on/off (2-position) control.
4.6.2 2-pipe fan coil unit with electrical heater Heating or cooling with electric heater In 2-pipe applications with electrical heater, the controller controls a valve in heating/cooling mode with changeover, heating only mode, or cooling only mode plus auxiliary electrical heater. Cooling only is factory set (P01=1) with enabled electrical heater (P13). Electrical heating, active in cooling mode In cooling mode, the valve receives an OPEN command if the acquired temperature is above the setpoint.
The diagram below shows the control sequence for continuous PI control. Heating mode Cooling mode (automatic changeover=heating or heating only) (man. /auto.
4.6.3 4-pipe fan coil unit In 4-pipe applications, the controller controls two valves in heating and cooling mode, heating/cooling mode by manual selection, or heating and cooling mode with changeover. Heating and cooling mode (P01=4) is factory set. 4-pipe application with manual selection The heating or cooling output can be released via operating mode selector button if parameter P01 is set to manual (P01=2).
The diagram below shows the control sequence of a continuous PI control.
4.7 Overview of control outputs Control outputs Different control output signals are available depending on the controller type. Control output Type reference RDF300… RDF400… RDF340… RDF600 RDF600T on/off 3-position Y11, Y21 (2) Y11, Y21 (2) Y11/Y21 (1) Y11/Y21 (1) Y11, Y21 (2) Y11, Y21 (2) Y11/Y21 (1) Y11/Y21 (1) DC 0…10 V Y10, Y20 (2) ( ) Number of outputs on/off control signal (2-position) The valve or compressor receives the OPEN/ON command via control output Y11 or Y21: 1.
4.8 Fan control The fan operates in automatic mode or at the selected speed with manual mode. In automatic mode, the fan speed depends on the setpoint and the current room temperature. When the room temperature reaches the setpoint, the control valve closes and the fan switches off or stays at fan speed 1 (parameter P60) Factory setting for P60,: RDF600... fan Off in dead zone RDF3..., RDF4...
Fan operation as per heating/cooling mode, or disabled Fan operation can be limited to be active only in cooling or heating mode, or even totally disabled via control parameter “Fan operation” P52. When fan operation is disabled, the fan symbol on the display disappears and actuating the fan button has no influence. This function allows for using the controller in universal applications such as floor heating with fan coil cooling etc.
Clean fan filter reminder The clean fan filter reminder function counts the fan operating hours and displays message “FIL” to remind the user to clean the fan filter as soon as the threshold is reached. This does not impact controller operations, which continues to run normally. The service interval can be set via parameter P62. The clean filter reminder is reset when the operating mode is manually set to Protection respectively .
4.9 Multifunctional input The controller offers two multifunctional inputs X1 and X2. A sensor of type NTC like QAH11.1 (AI) or a switch (DI) can be connected to the input terminals. The functionality of both inputs can be configured via parameters P38 for input X1 and P40 for input X2. # 0 1 Function of input X1/X2 Not used External/Return air temp. 2 Heat/cool changeover 3 Operating mode switchover 4 Dewpoint monitor 5 Enable electrical heater 6 Alarm Description No function.
4.10 Auto Timer (RDF400… / RDF600T only) The controller provides an Auto Timer mode with 8 programmable timers. Each timer can be assigned to one or several days. In this mode, the controller automatically changes over between Comfort and Economy mode as per the preprogrammed timers. Auto Timer for Comfort mode Set timers Auto Timer for Economy mode Each timer has a Comfort mode start and end time that can be applied to one or several weekdays.
3. Symbol flashes. Press + or - to select or clear each day and go to the next day. Confirm the actual timer settings by pressing and go to the next timer. The controller closes the programmable timer setting mode if no button is pressed within 20 seconds. All changes made after pressing the button for the last time are lost. View timers Press the Default timer setting Timers A1…A4 have the following default settings (residential use): button to review the 8 timers in sequence.
7-day time clock The 7-day time clock supports 12 hour and 24 hour format. Select the format while setting the time clock as follows: Set the time clock 1. Press the button until the time digits start to flash and then press + or - to set the time of day. If the current time is in the 24-hour format and you want to change to 12-hour format, press + passing 23:59 or press - passing 00:00 and vice-versa to return to 24-hour format. 2.
4.13 ON 1 2 DIP switches Use the DIP switches on the inner side of the front panel to commission the basic controller applications prior to snapping it to the base. RDF300… / RDF400… / RDF600... have the following DIP switch settings: RDF300… / RDF400… / RDF600...
Adjust parameters 3. Select the required parameter by repeatedly pressing buttons + and -. 4. When you press buttons + and - simultaneously, the current value of the selected parameter starts to flash, which can be changed by repeatedly pressing buttons + or -. 5. When you again press buttons + and – simultaneously, the next parameter is displayed. 6. Repeat Steps 3 to 5 to display and change additional parameters. 7.
2K 1K 2K 2K 5 min 16 °C 28 °C 3 (Op mode switchover) P39 Operating action for X1 if digital input 0 (N.O.) P40 P41 X2 functionality Operating action for X2 if digital input 2 (H/C c/o) 0 (N.O.) P44 P48 P49 P50 Runtime for 3-position output (Y11/Y21) Minimum output on-time via on/off control output Minimum output off-time via on/off control output Purge function (minimum every 2 hours) 150 s 1 min. 1 min.
5 Handling 5.1 Mounting and installation Mount the room controller on the 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 Devices must be mounted on clean, dry indoor place without direct airflow from a heating / cooling device, and not be exposed to dripping or splashing. RDF3...
Compressor-based application Calibrate sensor Setpoint and range limitation When the controller is used with a compressor, the minimum output on-time (parameter P48) and off-time (parameter P49) for Y11/Y21 must be adjusted to avoid damaging the compressor and shortening its life Recalibrate the temperature sensor if the room temperature displayed on the controller does not match the room temperature measured.
Engineering 6.1 Connection terminals L N X1 M X2 Q1 Q2 Q3 SELV RDF300… / RDF400… / RDF600…. 6 Y11 N Y21 L, N Q1 Q2 Q3 Y11,Y21 X1, X2 M RDF340… G G0 X1 M X2 SELV L Q1 Q2 Q3 Y10 G0 Y20 G, G0 L Q1 Q2 Q3 Y10,Y20 X1, X2 M Operating voltage AC 230 V Control output “Fan speed 1 AC 230 V” Control output “Fan speed 2 AC 230 V” Control output “Fan speed 3 AC 230 V” Control output “Valve” AC 230 V (N.O.
6.2 Connection diagrams 6.2.1 Water-based fan coil applications with RDF300... / RDF400... / RDF600… Application: M1 N1 L 2-pipe fan coil units 10 A S1 S2 B1 B2 X1 AC 230 V L X2 M Q1 Q2 Q3 N I Y21 Y11 N1 II III 3-speed fan Room thermostat RDF300... / RDF400... / RDF600… Y1 Zone valve S1, S2 Switch (keycard, window contact, etc.) B1, B2 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.) M1 Y1 5(2)A max. N Application: 5(2)A max.
6.2.2 Compressor in DX-type equipment (DIP setting: "2-pipe") M1 L 10 A S1 S2 B1 B2 L AC 230 V Application: Compressor-based applications with RDF300... / RDF400... / RDF600… X1 M I Room thermostat RDF300... / RDF400... / RDF600… C1 Compressor S1, S2 Switch (keycard, window contact, etc.) B1, B2 Temperature sensor (return air temperature, external room temperature sensor, etc.) X2 Q1 Q2 Q3 N 3-speed fan N1 Y21 Y11 N1 II III M1 C1 5(2)A max.
6.2.3 Water-based fan coil applications with RDF340... Application: M1 N1 Y1 2-pipe fan coil units 3-speed fan Room thermostat RDF340... Zone valve S1, S2 Switch (keycard, window contact, etc.) B1, B2 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.) Y1 Application: 2-pipe fan coil units with electrical heater Y1 M1 N1 Y1 YR E1 S1, S2 B1, B2 3-speed fan Room thermostat RDF340... Zone valve 0..
7 Mechanical design The controller consists of 2 parts: Front panel accommodating the electronics, operating elements and built-in room temperature sensor. Mounting base with the 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 RDF300… / RDF340… / RDF600 2 1 1. Operating mode selector / Protection 2. Change fan operation 3.
7.1 Dimensions Dimensions in mm 86 14 16 30 3076M12 3076M02 86 3076M01 3076M01 86 RDF600… 86 RDF3… RDF400... 60 80 3076M03 67 3076M13_01 52 39 / 44 Siemens Building Technologies RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation Mechanical design CE1P3076.
8 Power supply Outputs Inputs Technical data Rated voltage RDF300… /400… / 600... RDF340… AC 230 V SELV AC 24 20 % Frequency 50/60 Hz Power consumption RDF300... / RDF400.. RDF340… Max. 8 VA RDF600… Max 3.5 VA / 0.8 W Fan control Q1, Q2, Q3-N AC 230 V Rating Min. 5 mA, Max. 5(2) A Control output Y11-N/Y21-N (N.O.) AC 230 V Rating Min. 5 mA, Max. 5(2) A SELV DC 0…10 V Control output Y10-G0/Y20-G0 39 mV Resolution Max. 1 mA Current Max. total load current through terminal "L" (Qx + Yxx) Max.
Environmental conditions Standards As per IEC 721-3-3 Class 3K5 0 ...+ 50 °C < 95 % r.h. As per IEC 721-3-2 Class 2K3 25...+60 °C < 95 % r.h. Class 2M2 As per IEC 721-3-1 Class 1K3 25...+60 °C < 95 % r.h.
Index 1 12 hour and 24 hour format ........... 28 1-speed fan.................................... 22 2 2-pipe fan coil unit ....................... 12 3 3-position ....................................... 21 4 4-pipe fan coil unit ....................... 12 A Alarm ............................................. 25 Auto Timer ..................................... 26 Automatic heating/cooling changeover .......................... 13, 15 F Factory settings ............................. 29 Fan kick function ....
Reload factory settings.................. 30 Remote heating/ cooling changeover ................................................... 13 Reset parameters .......................... 30 S Sensor input .................................. 25 Service level parameters ............... 29 Set the time clock .......................... 28 Set timers ...................................... 26 Setpoint and range limitation......... 33 Setpoint limitation ...........................11 Switching differential.................
Siemens Switzerland Ltd. Infrastructure & Cities Sector Building Technologies Division International Headquarters Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 www.siemens.com/sbt © 2008 - 2012 Siemens Switzerland Ltd. Subject to change 44 / 44 Siemens Building Technologies RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation CE1P3076.
