s Room thermostat with KNX communications RDG400KN Basic Documentation Edition: 1.
Contents 1. About this document ..............................................................................4 1.1 Revision history.........................................................................................4 1.2 Reference documents ...............................................................................4 1.3 1.3.1 1.3.2 1.3.3 Before you start .........................................................................................5 Copyright .....................................
.10.3 3.10.4 3.10.5 3.10.6 3.10.7 3.10.8 3.10.9 3.10.10 3.10.11 3.10.12 Zone addressing in LTE mode (in conjunction with Synco) ....................47 Example of heating and cooling demand zone.......................................49 Send heartbeat and receive timeout.......................................................50 Startup.....................................................................................................50 Heating and cooling demand .............................................
1. About this document 1.1 Revision history Edition Date Changes Section 1.0 16 Jul 2010 First edition all 1.2 Subject Ref Room thermostats with KNX [1] communications, [2] RDG400KN [3] KNX Manual [4] Synco and KNX (see www.siemens.com/synco) [5] [6] [7] DESIGO engineering documents [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] Pages Reference documents Doc No.
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 This document was prepared with great care.
1.4 Target audience, prerequisites This document assumes that users of the RDG KNX thermostats are familiar with the ETS3 Professional and/or Synco ACS700 tools and able to use them. It also presupposes that these users are aware of the specific conditions associated with KNX. In most countries, specific KNX know-how is conveyed through training centers certified by the KNX Association (see www.konnex.org/). For reference documentation, see section 1.2. 1.
Product no. 2. Summary 2.1 Types Stock number Features Operating voltage ON/OFF PWM RDG400KN S55770-T165 AC 24 V Backlit LCD Number of control outputs 1 1) 1 1) 3-pos DC 0…10 V 1 1) 1 1) Selectable: ON/OFF, PWM or 3-position (triac outputs) 2.2 Ordering When ordering, please indicate both product no. / stock no. and name: E.g. RDG400KN / S55770-T165 room thermostat Order valve actuators separately 2.
Temporary Comfort mode extension Display of current room temperature or setpoint in °C and/or °F Display of outdoor temperature or time of day via KNX bus Minimum and maximum limitation of room temperature setpoint Minimum and maximum limitation of air flow signal DC 0...10 V Button lock (automatically or manually) 2 multifunctional inputs, freely selectable for: – Operating mode switchover contact (keycard, window contact, etc.
2.4 Integration via KNX bus The RDG room thermostats can be integrated as follows: Integration into Synco 700 system via LTE mode (easy engineering) Integration into Synco living via group addressing (ETS3) Integration into DESIGO via group addressing (ETS3) or individual addressing Integration into third-party systems via group addressing (ETS3) The following KNX functions are available: Central time program and setpoints, e.g.
Synco topology Legend: Synco 700 Synco living RDG..., RDF…, RDU… OZW772 (or OZW775) RMZ792 QAW... ACS700 RXB, RXL QAX DESIGO and third-party systems Building automation and control system (BACS) Room automation and control system Room thermostats Web server Bus operator unit Room unit Service tool using OCI700.1 (OCI700.
2.5 Equipment combinations Product no. Data sheet Cable temperature sensor QAH11.1 1840 Room temperature sensor QAA32 1747 QXA2000 / QXA2001 / AQX2000 1542 SSA61... 4893 SSC61… 4895 SSP61… 4864 SSB61... 4891 SSD61... 4861 SQS65… 4573 STS61 4880 Type of unit Condensation detector / Supply unit DC 0..10 V valve actuators Electrical actuator, DC 0..10 V (for radiator valve) Electrical actuator, DC 0..10 V (for 2 and 3 port valves / V…P45) Electrical actuator, DC 0..
ON/OFF valve actuators AC 24 V Electromotoric ON/OFF valve and actuator MVI…/MXI… 4867 Electromotoric ON/OFF actuator SFA71... 4863 Thermal actuator (for radiator valve) STA71... 4877 Thermal actuator (for small valves 2.5 mm) STP71... 4878 Electrical actuator, 3-position (for radiator valve) SSA81... 4893 Electrical actuator, 3-position (for small valve 2,5 mm) SSP81… 4864 Electrical actuator, 3-position (for small valve 5,5 mm) SSB81...
3. Functions 3.1 Temperature control General note: Parameters Setting of the control parameters (P01, etc., mentioned throughout the document) is described in section 3.12. Temperature control The thermostat 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 delivering actuator control commands to heating and/or cooling equipment.
3.2 Operating modes The thermostat's operating mode can be influenced in different ways (see below). Specific heating and cooling setpoints are assigned to each operating mode. K NX R Room operating mode: State The thermostat sends the effective room operating mode on the bus. The following operating modes are available: Auto Timer In Auto Timer mode the room operating mode is commanded via bus.
3.2.1 Source for change of operating mode ACS Service ACS Operating Source Local operation via left button Bus command K NX R Room op. mode a b c The operating mode can be influenced by different interventions. The source of the effective room operating mode state can be monitored using the "Cause" diagnostic data point in the ACS700 tool, operator unit RMZ792 or web server OZW772 / 775.
Auto Timer mode with time schedule via bus If a time schedule via bus is present, e.g. from central control unit, then the Auto Timer mode is active. The thermostat automatically changes between Comfort and Economy according to the time schedule via bus. The display shows the Auto Timer mode symbol along with the symbol for the effective room operating mode (Comfort or Economy ). By pressing the operating mode button, you can change to another operating mode.
Temporary timer to extend the Comfort mode Comfort mode can be temporarily extended (e.g. working after business hour or on weekends) when the thermostat is commanded to Economy mode by a central time switch, operating mode switchover via KNX or via local input X1, D1. The operating mode button switches the operating mode back to Comfort for the period preset in P68. Press the operating mode button again to stop the timer.
Function if no time schedule is received via bus User profile for operating mode (selected via P02) P02 = 1 P02 = 2 Operating mode when activating function Comfort Comfort Protection Comfort Comfort Economy Economy Protection Function Operating mode during function Operating mode at the end of function Extension Absence Not available Extension Absence Extension Absence Not available Comfort Protection Comfort Economy Comfort Economy - Protection Comfort Economy Comfort Ec
3.2.2 Communication examples The following examples show two typical applications of a central time schedule in conjunction with local control of the room operating mode. The room operating mode in rooms 1…2 of a building is determined by the time schedule. Window contacts are fitted in all rooms.
Interaction of user operation (operating mode button) and central time schedule Example 2 In room 2, the window is opened briefly, once in the morning and once at night (1). Only the opening in the morning has a direct impact on the effective room operating mode. With the operating mode button, the operating mode can be changed between OFF and Auto or temporary Comfort extension respectively. Time schedule Room operating mode During lunch break, the time schedule changes to Precomfort.
Comfort mode 3.3 Room temperature setpoints 3.3.1 Description The factory setting for the Comfort basic setpoint is 21 °C and can be changed in the thermostat’s EEPROM via parameter P08 or via bus with communication object " Comfort basic setpoint". The last intervention always wins. The Comfort setpoint can be adjusted via the, rotary knob, or via bus from a remote device like a touchpanel, operating unit, etc. The last intervention always wins.
Caution If a setpoint (Economy or Protection) is set to OFF, the thermostat does not control the room temperature in the corresponding mode (heating or cooling). This means no protective heating or cooling function and thus risk of frost in heating mode or risk of overtemperature in cooling mode! The Economy setpoints are accessible at the service level (P11, P12); the Protection setpoints at the expert level (P65, P66). 3.3.
1) Only required for heating AND cooling applications (see section 3.6.8) 2) The shift is added to the local shift (LTE mode only) 3) The last intervention wins, either S-Mode input or local operation KNX R Current setpoint The current setpoint (used by the thermostat for temperature control) is available on the bus for use in the central control unit.
3.4 Applications overview The thermostats support the following applications, which can be configured using the DIP switches at the rear of the unit or a commissioning tool. DIP switches 1...3 need to be set to OFF (remote configuration, factory setting) to select an application via commissioning tool. In this case the output signal type needs to be set in ACS as well. The tool offers the applications printed in bold text (basic applications).
3.5 Air heating / cooling changeover K NX R Supply air temperature Additional functions The supply air temperature sent by the primary controller indicates whether cool or warm air is supplied. The controller determines the necessity to open or close the air damper according to the supply air temperature, the room temperature setpoint and the current room temperature. If no Supply air temperature is available via bus, then the air changeover is cooling per default.
The QAH11.1 cable temperature sensor for automatic heating / cooling changeover can be replaced by an external switch for manual, remote changeover: Changeover switch X2 M T QAH11.1 X2 M 3076Z03 Contact open heating mode Contact closed cooling mode T °C The sensor or switch can be connected to input terminal X1 or D1 (switch only), depending on the commissioning of the inputs (P38, P42). See also section 3.8 “Multifunctional input”.
Dew point monitoring Dew point monitoring is essential to prevent condensation on the chilled ceiling. It helps avoid associated damage to the building. A dew point sensor with a potential-free contact is connected to multifunctional input X1 or D1. If there is condensation, the cooling valve is fully closed until no more condensation is detected, and the cooling output is disabled temporarily.
3.6 Control sequences 3.6.1 Sequences overview (setting via parameter P01) The mode of the control sequence can be set via parameter P01. Depending on selected application it will have influences either on the air sequence or water sequence. In all application the changeover of the air sequence can be done via supply air temperature sent by the primary controller.
3.6.2 K NX Application mode The behavior of the thermostat can be influenced by a building automation and control system (BACS) via bus with the command “Application mode”. With this signal, cooling and/or heating activity can be enabled or disabled. Application mode is supported in LTE mode and S-mode.
ACS Operating Heating OR cooling The state (heating or cooling) of the thermostat can be monitored with the ACS700 tool (diagnostic value “Control sequence”). The last active mode is displayed when the thermostat is in the dead zone or temperature control is disabled. With a single-duct application, the control sequence state is determined by the application mode (see section 3.6.
3.6.3 Minimum and maximum air volume The factory setting for minimum and maximum air volume is 0 / 100% respectively. These values can be changed using parameters P63 / P64. If Vmin is greater than 0, a minimum air flow of Vmin is assured in Comfort and Economy mode. In Protection (or Economy mode with setpoint = OFF), Vmin is fixed to 0.
3.6.4 Single-duct On single-duct applications, the thermostat controls an actuator (air damper, VAV system, valve etc.)… – in heating / cooling mode with changeover (automatic or manual), – heating only mode, – or cooling only mode. Cooling only is factory-set (P01=1). The output signal for the air flow can be limited to a minimum and maximum value if required (see section 3.5 "Additional features").
3.6.5 Caution Single-duct with electric heater General rule: In case of insufficient air flow, the thermostat cannot protect the electrical heater against overtemperature. Therefore the electric heater MUST feature a separate safety device (thermal cutout). On single-duct applications with electrical heater, the thermostat controls a valve plus an auxiliary electrical heater. Parameter P01 is not available.
Sequences ON/OFF electrical heater Change-over air Change-over air Y XpC C max Vmax H 100% XpC XpH Vmax YV YV Vmin min Vmin 0% C min H 100% XpH max Y Modulating electrical heater 0% TR [°C] TR [°C] Y Y XpH SDH ON 100% YE YE W OFF dz W 0% dz TR [°C] TR [°C] Without a valid bus signal for changeover air, the air volume is only increased for cooling: Y Y max Vmax YV min Vmin XpC Vmax YV Vmin 0% 0% TR [°C] TR [°C] Y Y XpH SDH 100% ON YE OFF C 100% max
3.6.6 Single duct with radiator or floor heating On single-duct applications with radiator or floor heating, the thermostat controls a valve plus an auxiliary electrical heater. Parameter P01 is not available. The output signal for the air flow can be limited to a minimum and maximum value if required (see section 3.5 "Additional features").
Without a valid bus signal for changeover air, the air volume is only increased for cooling: 2-position radiator / floor heating Modulating radiator / floor heating Y Y max Vmax YV min Vmin XpC Vmax YV Vmin 0% 0% TR [°C] TR [°C] Y Y XpH SDH 100% ON YR OFF Y TR W H C YV YR C 100% max C 100% min XpC YR W dz Output signal Room temperature Effective setpoint Comfort Heating sequence Cooling sequence Volume flow rate Radiator / floor heating 0% W dz TR [°C] XpH XpC Vmin Vmax TR [
3.6.7 Single-duct with heating / cooling coil On single-duct applications with heating / cooling coil, the thermostat controls an actuator (air damper, VAV system, etc.) plus a heating / cooling water coil. The output signal for the air flow can be limited to a minimum and maximum value if required (see section 3.5 "Additional features"). The thermostat controls the reheating / cooling water valve either in heating / cooling mode with changeover (automatic or manual), heating only, or cooling only.
Without a valid bus signal for changeover air, the air volume is only increased for cooling: 2-position heating / cooling coil Modulating heating / cooling coil Y Y max Vmax YV YV Vmin 0% 0% TR [°C] TR [°C] Changeover water Changeover water Y Y H SDC SDH C ON YHC OFF Y TR w (w) H C YV C Vmax min Vmin XpC 100% max C 100% min XpC 100% (w) dz XpH XpC Vmin Vmax (w) dz TR [°C] C YHC w 0% Output signal Room temperature Comfort setpoint if changeover water = Heating Comfort
3.6.8 Setpoints and sequences Single duct / single duct with heating / cooling coil Comfort setpoint (W) is in the currently active heating or cooling sequence Single duct with el.
3.7 Control outputs 3.7.1 Overview Different control output signals are available depending on the configuration of thermostat via DIP switches 4 and 5, and parameters P46 and P47. Control output Product No. RDG400 Modulating DC 0…10 V 2-position ON/OFF 2-position PWM Modulating 3-position Y10 Y1 1) Y1 1) Y1/Y2 1) (1 x / ) 1) Either ON/OFF, PWM or 3-position (triac) Configuring of the control outputs: refer to section 3.7.4. 3.7.2 Control output for air flow DC 0..
3.7.3 ON/OFF control signal (valve, 2-position) Control output for electrical heater, radiator and heating / cooling coil The valve receives an OPEN/ON command via control output Y1 when… 1. 2. the acquired room temperature is below the setpoint (heating mode) or above the setpoint (cooling mode), the control outputs have been inactive for more than the “Minimum output offtime” (factory setting 1 minute, adjustable via parameter P48). OFF command for valve output when… 1. 2.
3-position control signal Output Y1 provides the OPEN command, and Y2 the CLOSE command to the 3position actuator. The factory setting for the actuator’s running time is 150 seconds. It can be adjusted via parameter P44 (Y1 and Y2). The parameter is only visible if 3-position is selected via DIP switch 5 or commissioning tool. Synchronization 1. 2. 3.
Application Single-duct Single-duct and electrical heater Single-duct and radiator / floor heating Single-duct heating / cooling coil Modulating DC 0…10 V ON/OFF (2-position) Control outputs Modulating 3-position Control outputs configuration (setting via DIP switches 4/5 or tool, and parameters P46/P47) Modulating PWM (2-position) 3.7.
3.8 Multifunctional input, digital input The thermostat has 2 multifunctional inputs X1 and a digital input D1. An NTC type sensor like the QAH11.1 (AI, analog input) or a switch (DI, digital input) can be connected to the input terminals. The functionality of the inputs can be configured via parameters P38 + P39 for X1, and P42 + P43 for D1. K NX The current temperature or state of the inputs X1 and D1 is available on bus for monitoring purposes.
# 5 K NX Function of input Enable electric heater 6 Fault R 7 Monitor input (Digital) Digital input to signal an external fault (example: dirty air filter). If the input is active, “ALx” is displayed and a fault is sent on the bus. See also section 3.10.11. (Alarm x, with x = 1 for X1, x = 3 for D1). Note: Fault displays have no impact on the thermostat's operation. They merely represent a visual signal. Digital input to monitor the state of an external switch via bus.
3.9 Temperature out of range Handling faults When the room temperature is outside the measuring range, i.e. above 49 °C or below 0 °C, the limiting temperatures blink, e.g. “0 °C” or “49 °C”. In addition, the heating output is activated if the current setpoint is not set to “OFF”, the thermostat is in heating mode and the temperature is below 0 °C. For all other cases, no output is activated. The thermostat resumes Comfort mode after the temperature returns to within the measuring range.
RDG Time Switch Geogr. zone 2.5.1 Geogr. zone 2.5.1 or 2.1.1 Room temperature Operating mode Operating mode Air handling unit Air distr zone 1 Air distr zone 1 Air demand Air demand Chiller Refr. distr zone 1 Refr.
The device will send and receive LTE communication signals only if the zone address is valid (not OSV = out of service). The zones to be defined are as follows: Geographical zone (space zone) Zone in which an RDG KNX thermostat is physically located. Other room-specific devices may also be located in this zone. (Apartment . Room . Subzone) Apartment = ---, 1...126 Room = ---, 1...
This Distribution zone is for air applications (VAV, CAV). Information related specifically to the air handling system is exchanged within this zone (e.g. air demand). This zone also includes a Synco device to process the information (e.g. RMU7xx). Air distribution zone Zone = ---, 1...31 Outside temperature received in outside temperature zone 1 will be / can be displayed on the room thermostat when commissioned accordingly (parameter P07 = 2). Outside temperature zone Zone = fix 1 3.10.
3.10.5 Send heartbeat and receive timeout In a KNX network, S-mode and LTE mode communication objects can be exchanged between individual devices. The Receive timeout defines the period of time within which all the communication objects requested from a device must have been received at least once. If a communication object is not received within this period, a predefined value is used.
3.10.9 Electric heater interlock by supply air controller (LTE mode only) To avoid overheating of an electric heater, sufficient flow of supply air must be guaranteed. The thermostat features the function “Interlock of el. heater via supply air controller”, which is active when a supply air controller (e.g. Synco RMU7xx) is used in the system.
3.10.11 Fault function on KNX If a fault occurs (e.g. digital fault input, dew point, communication configuration, etc.) then a fault will be sent on the bus. An RDG thermostat listens on the bus and sends its fault when the fault has the highest alarm priority. This ensures that the management station does not miss any alarms. If alarms occur at the same time, the alarm with the highest priority will be first displayed and sent on the bus.
3.10.12 Emergency control (LTE Mode only) In case of smoke or fire the damper can be overridden via KNX. The necessary information is provided by the function block “HVAC Emergency Mode” The table below describes the behavior of the controller output.
3.11 Communication objects (S-mode) 3.11.
3.11.2 Description of communication objects Obj 1 Object name System time Function Type/ length Flags Time and 19.001 CWU date 8 Byte System time for display on the room thermostat. See parameter P07 (3 or 4) 3 Time of day Time and 10.001 CWU date 3 Byte Another object for receiving the time of day for display on the room thermostat. See parameter P07 (3 or 4) 4 Fault information Alarm 219.001 CT Info 6 Byte Common alarm output. If an alarm occurs, the alarm number is transmitted 5 Fault state Faulty / 1.
Obj 27 Object name Function Type/ length Flags Cooling output 0…100% 5.001 CRT primary 8 bit Indicates the position of the cooling actuator of the first stage. E.g. single duct with h/c coil application: Output of the cooling coil 28 Enable electric Enable / 1.003 CWU heater disable 1 bit An electric heater can be disabled with this communication object (e.g. to meet tariff regulations). The same function is also available via local multifunctional input X1/ D1 (parameter P38, P42).
3.12 Control parameters A number of control parameters can be readjusted to optimize control performance. This can be done on the thermostat via HMI or via commissioning / operating tool. These parameters can also be set during operation without opening the unit. In the event of a power failure, all control parameter settings are retained.
3.12.2 Parameter setting / download via tool Control parameters can be adjusted via bus either by parameter download during commissioning or during normal operation with a tool like ACS700.
Parameter 3.12.3 Parameters of the "Service level" Name Factory setting Range 0 = Heating only 1 = Cooling only 2 = H/C changeover manual 3 = H/C changeover auto 1 = Auto - Protection 2 = Auto - Comfort - Economy Protection C = ° Celsius F = ° Fahrenheit – 3 ... 3 K 0 = Room temperature 1 = Setpoint 0 = --- (No display) 1 = °C and °F 2 = Outside temperature (via bus) 3 = Time of day (12h) (via bus) 4 = Time of day (24h) (via bus) 5 ... 40 °C 5 ... 40 °C 5 ... 40 °C OFF, 5 ...
Parameter 3.12.4 Parameters of the "Expert level with diagnostics and test" Name Factory setting Range 0.5 … 6 K 0.5 … 6 K 0.5 … 6 K 0.5 … 5 K 0…10 min 10…25 °C 27…40 °C 0 = --- (no function) 1 = Room temp ext.
Parameter Name Factory setting Range 255 --1 --------0 1…255 ---, 1...126 ---, 1...63 ---, 1...31 ---, 1...31 ---, 1...31 ---, 1...
4. Handling 4.1 Mounting and installation 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 Mount the room thermostat in a clean, dry indoor place without direct airflow from a heating / cooling device, and not exposed to dripping or splash water Wiring See Mounting Instructions M3192 [3] enclosed with the thermostat.
After power is applied, the thermostat resets and all LCD segments flash, indicating that the reset was correct. After the reset, which takes about 3 seconds, the thermostat is ready for commissioning by qualified HVAC staff. If all DIP switches are OFF, the display reads "NO APPL" to indicate that application commissioning via a tool is required.
Calibrate sensor Recalibrate the temperature sensor if the room temperature displayed on the thermostat does not match the room temperature measured (after min. 1 hour of operation). To do this, change parameter P05 Setpoint and range limitation We recommend to review the setpoints and setpoint ranges (parameters P08…P12) and change them as needed to achieve maximum comfort and save energy Programming mode The programming mode helps identify the thermostat in the KNX network during commissioning.
4.3 Operation See also Operating Instructions B3192 [2] enclosed with the thermostat. Layout 1 2 1. Operating mode selector / Esc 2. Protection and OK 3.
Display # Symbol Description # Symbol Description 1 Heating mode 11 Confirmation of parameters 2 Heating mode, electric heater active 12 Degrees Celsius Degrees Fahrenheit 3 Cooling mode 13 Digits for room temperature and setpoint display 4 Comfort 14 Button lock active 5 Economy 15 Condensation in room (dewpoint sensor active) 6 Auto Timer mode according to schedule (via KNX) 16 Weekday 1…7 from KNX bus 1 = Monday / 7 = Sunday 7 Protection mode 17 Fault 8 Escape 18 Tempo
4.4 Remote operation The RDU thermostats can be operated from a remote location using a OZW772 / OZW775 web server, a RMZ792 bus operating unit or the ACS Operating tool. 4.5 Disposal The device is classified as waste electronic equipment in terms of the European Directive 2002/96/EC (WEEE) and should not be disposed of as unsorted municipal waste. The relevant national legal rules must be adhered to. Regarding disposal, use the systems setup for collecting electronic waste.
ETS3 Professional 5. Supported KNX tools 5.1 ETS3 Professional ETS3 Professional is an engineering tool. It is used to set up the communication of the RDG KNX thermostat and assigns the communication object to group addresses (S-mode). Parameters are only used for choosing (making visible / hiding) the communication objects. This Manual does not describe how to operate ETS3 Professional and commission a device. Refer to the KNX Manual for more details.
5.2.1 Parameter settings in ACS In the ACS Service program, select Plant, then Open to open the plant. To start the parameter settings, select Applications, then Parameter settings…: The application and control parameters can be adjusted and downloaded. Column Line no. contains the parameter number as shown in the parameter table. Refer to section 3.11, control parameters.
5.2.2 ACS Operating Parameter settings in ACS Operating Notes: Operation and monitoring with ACS In the ACS Operating program, select Plant, then Open to open the plant. To start monitoring and operation, select Applications, then Popcard ACS Operating supports parameter settings even during normal operation. To change a control parameter, select Popcard, then Settings.
Plant diagram in ACS Operating ACS Operating offers plant diagrams for easy monitoring and operation of the thermostat.
5.2.3 Operation and monitoring with OZW772 The OZW772 web server enables users to operate a Synco HVAC system from a remote location – via PC or from a smart phone via the web. A start page shows the most important data points. A combination of menu / path navigation enables users to access all data points quickly and straightforwardly. The entire installation can be visualized in the form of plant diagrams.
Connection 6.1 Connection terminals 3192A01 6. X1 G0 M U1 D1 GND CE+ CE - Y1 Y2 Y10 SELV 6.2 Application Connection diagrams G KNX S1 F 10 A AC 24 V B1 G X1 S3 r1 M U1 G0 D1 GND Y10 CE+ CEY1 Y2 N1 Single duct V1 1 mA max. G0 V1 1 A max. Single-duct with electric heater, radiator or heating / cooling valve V1 V2 1 mA max.
7. Mechanical design 7.1 General The room thermostat consists of 2 parts: Plastic housing with electronics, operating elements and room temperature sensor Mounting plate with the screw terminals The housing engages in the mounting plate and is secured with 2 screws. 1 2 4. Operating mode selector / Esc 3 For operation, refer to section 4.3. 7.2 Dimensions Dimensions in mm 4.0 28.3 28.3 9.0 4.0 128.0 28.3 28.3 28.3 27.7 16.0 93.0 28.5 30.8 28.2 27.
8.
Environmental conditions Standards and directives Setpoints Current temperature value displayed Operation Climatic conditions Temperature Humidity Transport Climatic conditions Temperature Humidity Mechanical conditions Storage Climatic conditions Temperature Humidity conformity to EMC directive C-tick conformity to EMC emission standard Reduction of hazardous substances Product standards Automatic electrical controls for household and similar use Special requirements for temperature-dependent controls El
Index 3 3-position control signal........................................ 40 3-position for air flow............................................. 40 H Heating / cooling changeover................................44 Heating demand ....................................................50 A Absence................................................................ 17 Air demand ........................................................... 50 Air heating / cooling changeover ..........................
V VAV changeover ................................................... 25 VAV changeover via bus ....................................... 28 Siemens Switzerland Ltd Industry Sector Building Technologies Division International Headquarters Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 www.buildingtechnologies.siemens.com W Window contact ................................................... 16 Window state ............................................
