RDG200KN & RDG260KN Room thermostats with KNX communications Basic Documentation A6V11545892_en--_a 2020-11-16 Smart Infrastructure
Table of contents 1 1.1 1.2 1.3 1.4 About this document ............................................................................. 5 Revision history ...........................................................................................5 Reference documents..................................................................................5 Before you start ...........................................................................................6 1.3.1 Trademarks ..................................
4.7 4.6.7 Preventive operation ...................................................................55 4.6.8 NFC communication....................................................................55 Control sequences .....................................................................................56 4.7.1 Sequence overview (setting via P001).........................................56 4.7.2 Application mode ........................................................................57 4.7.
5.2.4 Operation and monitoring with OZW772.................................... 127 6 6.1 6.2 6.3 Connection ....................................................................................... 128 Connection terminals ............................................................................... 128 Connection diagrams ............................................................................... 129 Application examples ...............................................................................
About this document Revision history 1 1 About this document 1.1 Revision history Edition 1 2 Date September 2020 November 2020 Changes First version. · Update NFC communication info · Update changeover picture · Update the picture of DC 0…10 V fan in “Fan control with modulating heating/cooling control” · Update info about geographical zones P901 and P902 · Update ACS version info Section All · 4.6.8 · 4.7.9.2 · 4.9 · 4.12.3 · 1.5, 5.2 1.2 Reference documents Subject Ref.
1 About this document Before you start 1.3 Before you start 1.3.1 Trademarks The table below lists the third-party trademarks used in this document and their legal owners. The use of trademarks is subject to international and domestic provisions of the law. Trademarks Legal owner SyncoTM AndroidTM Google Inc. All product names listed in the table are registered (®) or not registered (™) trademarks of the owner listed in the table. We forgo the labeling (e.g.
About this document 1 Target audience, prerequisites 1.3.4 Document user/request to the reader Before using products from Siemens Industry, Inc., it is important that you read the documents supplied with or ordered at the same time as the products (equipment, applications, tools, and so on) 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 Overview Types 2 Overview 2.1 Types For fan coil units, universal applications and compressors in DX-type equipment applications Operating voltage Product no. Stock no.
Overview Functions General functions ● ● ● ● ● ● ● ● ● ● ● ● Setpoints and display ● ● ● ● Setting ● ● ● Fan ● ● ● ● ● Special functions ● ● ● ● A6V11545892_en--_a 2 Room temperature control via built-in temperature sensor or external room temperature/return air temperature sensor Room relative humidity control via built-in humidity sensor (humidity function can be disabled.) Min./max.
2 Overview Accessories ● ● Inputs/outputs ● ● KNX communication features ● ● ● ● ● ● ● ● ● Control of 6-port ball valve via KNX S-Mode objects (RDG200KN and RDG260KN) Flow limitation function for PICV in heating mode (RDG260KN) 3 multifunctional inputs selectable for: – Window contact switches operating mode to Protection – Presence detector switches operating mode to Comfort – Sensor for automatic heating/cooling changeover – Switch for manual heating/cooling changeover – External room temperature o
Overview 2 Equipment combinations 2.4 Equipment combinations Type of unit Cable temperature or changeover sensor, cable length 2.5 m NTC (3 kΩ at 25 °C) 1840 Cable temperature sensor PVC 2 m, LG-Ni1000 QPA22 1831 Room temperature sensor NTC (3 kΩ at 25 °C) QAA32 1747 Room temperature sensor LGNi1000 QAA24 1721 Front modules with passive temperature measurement LGNi1000 AQR2531ANW 1408 Strap-on temperature sensor LGNi1000 QAD22 1801 Condensation monitor QXA21.. A6V10741072 AQR2570N..
2 Overview Equipment combinations On/Off and PWM actuators 1) 3-positon actuators AC 230 V 3-positon actuators AC 24 V 12 | 150 Type of unit Product no. Thermal actuator (for radiator valves) AC 230 V, NO STA23.. 1) 4884 Thermal actuator (for radiator valves) AC 24 V, NO STA73.. 1) 4884 Thermal actuator AC 230 V (for small valves 2.5 mm), NC STP23.. 1) 4884 Thermal actuator AC 24 V (for small valves 2.5 mm), NC STP73.. 1) 4884 Type of unit Datasheet *) Product no.
Overview 2 Equipment combinations DC 0…10 V actuators KNX actuators Type of unit Product no. Datasheet *) Electric actuator, DC 0…10 V (for radiator valves) SSA61.. 4893 Electric actuator, DC 0…10 V (for 2and 3-port valves/V..P45) SSC61.. 4895 Electric actuator, DC 0…10 V (for small valves 2.5 mm) SSP61.. 4864 Electric actuator, DC 0…10 V (for small valves 5.5 mm) SSB61.. 4891 Electromotive actuator, DC 0…10 V (for valves 5.5 mm) SAS61..
2 Overview Integration via KNX bus 2.5 Integration via KNX bus The RDG2..KN room thermostats can be integrated as follows: ● Integration into Synco 700 system via LTE-Mode (easy engineering) ● Integration into Desigo via group addressing (ETS) or individual addressing ● Integration into third-party systems via group addressing (ETS) The following KNX functions are available: ● Central time program and setpoints, e.g.
Overview 2 Integration via KNX bus Legend Desigo and third-party systems A6V11545892_en--_a Synco 700 Building automation and control system (BACS) Gateway Connection of meters via Modbus OZW Web server, connection of Synco, RDG/RDF & GAMMA RMB Central control, RDG/RDF integration RDG/RDF Thermostats for room climate control Gamma Instabus For lighting control and other room electrical applications The RDG2..
3 Notes Mounting and installation 3 Notes 3.1 Mounting and installation Mounting ● ● ● ● ● ● ● ● Wiring ● The devices are suitable for wall mounting. Recommended height: 1.5 m above the floor. Do not mount the devices in recesses, shelves, behind curtains or doors, or above or near heat sources. Avoid direct solar radiation and drafts. Avoid unheated (uncooled) building area such as outside walls. Seal the conduit box or the installation tube if any, as air currents can affect sensor readings.
Notes 3 Commissioning ● Disconnect thermostat from power supply before removing from the mounting plate. ● If a KNX bus power supply is connected to the line with communicating thermostats and Synco controller, the internal KNX power supply of the Synco controllers must be switched off. 3.2 Commissioning Applications and settings The room thermostats are delivered with a fixed set of applications and related parameters.
3 Notes Commissioning ACS and ETS require an interface: ● KNX interface (e.g. Siemens N148…) ● OCI702 USB-KNX interface Control sequence Set the control sequence via parameter P001 depending on the application.
Notes 3 Operation 3.3 Operation The room thermostat consists of two 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.
3 Notes Operation User action Effect, description Press left button while "Operating mode" via bus is Economy Activate "Extend Comfort mode" (for details, see Different ways to influence operating mode [➙ 27]). Keep left button pressed and turn rotary Activate timer "Extend knob clockwise/counter-clockwise presence"/"Extend absence" and set the time (for details, see Different ways to influence operating mode [➙ 27]. Press right button >3 seconds Activate/deactivate button lock.
Notes 3 Remote operation # Symbol Description 12 Digits for setpoint display 14 Economy mode 16 Cooling mode # Symbol 13 Description Protection mode 15 17 18 Heating mode 19 20 Auto mode 21 Comfort mode Heating mode, electric heater active Manual changeover, heating/cooling mode Temporary timer 22 24 Fault 23 Condensation in room 25 (dewpoint sensor active) or humidity control active Fan speed 26 Button lock Automatic fan Fan speed I Fan speed II Fan speed III 3.
4 Functions Temperature control 4 Functions 4.1 Temperature control General note: Parameters Setting control parameters (P001 etc. mentioned throughout the document), see Control parameters [➙ 108].
Functions 4 Operating modes When an application program is downloaded to the Synco devices via ETS, the correct group addresses must also be downloaded to display the time of day on the thermostat (see Synco Knowledge Base - KB771). Note 4.2 Operating modes Room operating mode: State The thermostat operating mode can be influenced in different ways (see Different ways to influence operating mode [➙ 24]). Specific heating and cooling setpoints are assigned to each operating mode.
4 Functions Operating modes 4.2.1 Different ways to influence operating mode Source for change of operating mode ACS Different interventions can influence the operating mode. The source of the actual room operating mode state can be monitored using the "Cause" diagnostic data point in the ACS tool or web server OZW772.
Functions 4 Operating modes Priority Description ④ Presence detector Remark ● Standard presence mode: If a room is occupied, the operating mode changes to Comfort. This overrides the operating mode on the thermostat. Unoccupied rooms set back the thermostat to the previous operating mode. ● Hotel presence mode: If a room is unoccupied, the operating mode changes to Economy. This overrides the operating mode on the thermostat. The buttons are locked and symbol displays.
4 Functions Operating modes Pre-Comfort via bus If the time schedule sends Pre-Comfort mode, the mode is changed either to Economy (factory setting) or Comfort (selectable via P910). Behavior when bus sends Protection No intervention is possible by the user, if Protection mode is set by the time schedule. OFF flashes on the display when a button is pressed. Availability of Economy mode The operating mode can be selected locally via the operating mode button.
Functions 4 Operating modes Presence detector The operating mode can be changed to Comfort or Economy based on room occupancy (room occupied or unoccupied, via presence detector or keycard). For details, see Presence detector [➙ 45] Temporary timer to extend Comfort mode can be temporarily extended (e.g., working after business hours or on weekends) when the thermostat is in Economy mode. Comfort mode 1. Press the operating mode button to return to Comfort for the preset period (P102). 2.
4 Functions Operating modes Function if no time schedule is received via bus User profile for operating mode (selected via P002) Operating Mode mode button when activating function Function Operating Operating mode during mode at the function end of function P002 = 1: Comfort Extension Comfort Protection Comfort Absence Protection Comfort Comfort or Economy Extension Comfort Economy Comfort or Economy Absence Economy Comfort Comfort Extension Comfort Protection hospitality Comfort
Functions Operating modes 4 4.2.2 Communication examples The following examples show 3 typical applications for a central time schedule together with local control of the room operating mode. The room operating mode in rooms 1…3 of a building is determined by the time schedule. Window contacts are installed in all rooms.
4 Functions Operating modes Example 2 30 | 150 Interaction of user operation (operating mode button) and central time schedule In Room 2, the window is opened briefly, once in the morning and once in the late afternoon (1). Only the opening in the morning directly influences actual room operating mode. With the operating mode button, the operating mode can be changed between OFF and Auto or to temporary Comfort extension. ● During lunch break, the time schedule changes to Pre-Comfort.
Functions Operating modes Example 3 A6V11545892_en--_a 4 Application for "Window contact", "Presence detector" and “Central time schedule” In Room 3, the time schedule is between 13:00 and 17:00.
4 Functions Room temperature setpoints 4.3 Room temperature setpoints 4.3.1 Description Comfort mode The factory setting for the Comfort basic setpoint is 21 °C and can be changed in the thermostat’s EEPROM via P011, bus with communication object "Comfort basic setpoint" or Siemens smartphone application PCT Go for Android. The last option selected is always used. The Comfort setpoint can be adjusted via rotary knob, or bus from a remote device like a touch panel, operator unit, etc.
Functions 4 Room temperature setpoints Setpoint energy saving concept (P010 = 2) ● ● This allows users to limit the setpoint setting range for heating and cooling independently. The setpoint limits for heating can be set via P013 (Comfort setpoint minimum) and P014 (Comfort setpoint maximum heating). The setpoint limits for cooling can be set via P015 (Comfort setpoint minimum cooling) and P016 (Comfort setpoint minimum).
4 Functions Room temperature setpoints 4.3.
Functions Room temperature setpoints 4 Other functions: ● If current humidity setpoint is not suitable for room humidity, setpoint shift is activated via humidity control strategy (P451). 5) Cooling setpoint tracking depending on outside temperature (P255) In cooling mode, a large difference between outside and indoor temperatures can create discomfort and waste energy.
4 Functions Room temperature setpoints ● ● ● ● ● Setpoint priority Setpoint master (RMB) 36 | 150 ● Local and central shifts are added up Applies only to Comfort and Economy setpoints; Protection setpoints are not shifted centrally The current setpoint heating and cooling is limited by the Protection setpoint. If the Protection setpoint is Off, both the minimum 5 °C and maximum 40 °C are used The current setpoints for cooling and heating of the same operating mode have a minimum distance of 0.
Functions 4 Application overview 4.4 Application overview The RDG2..KN room thermostats support the following applications, which can be configured using the DIP switches at the rear of the unit or commissioning tool. Remote configuration Set DIP switches 1…5 to OFF (remote configuration, factory setting) to select an application via commissioning tool.
Functions 4 Application overview 4.4.
Functions Application overview 4 4.4.
Functions 4 Application overview 4.4.
Functions 4 Power supply selection for RDG200KN 4.5 Power supply selection for RDG200KN The RDG200KN can be powered either on AC 230 V or AC 24 V. The desired power supply is selected via the power switch on the rear of the device. The default setting is AC 230 V.
Functions 4 Additional functions 4.
Functions 4 Additional functions 4.6.1 Sensors and changeover functions Heating/cooling changeover via bus (KNX) The heating/cooling changeover information is received via bus. This is only possible if the control sequence is set to automatic heating/cooling changeover (P001 = 2) and no local input (X1, X2, U1) is assigned to this function. In required information is unavailable (e.g., due to data communication issues, power failure, etc.
4 Functions Additional functions Note When using an external switch for changeover, the operating action is configured via P150, P153 or P155 = 2.
Functions 4 Additional functions 4.6.2 Presence detector The operating mode can be changed to Comfort or Economy mode based on room occupancy (room occupied or unoccupied, via presence detector or keycard). Standard presence mode (Input: P150 / P153 / P155 = 10) The presence detector input switches the operating mode to Comfort when the room is occupied and switches back to the previous operating mode when the room is unoccupied. Presence detection is also possible via bus.
4 Functions Additional functions 4.6.3 Output functions Purge function (P251) The changeover sensor ensures changeover between heating and cooling mode based on the acquired water temperature. We recommend activating the Purge function (P251) 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 opened for 1 to 5 minutes (adjustable) at 2-hour intervals during off hours.
Functions 4 Additional functions Qx relay switching function (P400, P401, P402) Note Switching off external equipment in Protection mode The following functions allow the control of external equipment connected to the Q1, Q2 and Q3 relay outputs: Function description P40X = No function 0 Switching off external equipment when the thermostat is in Protection mode 1 Switching on external equipment during… ● heating/cooling demand ● heating demand ● cooling demand 2 3 4 Energizing the contact when
4 Functions Additional functions ● To energize the output during heating/cooling demand, set the parameter to 2. ● To energize the output during heating demand, set the parameter to 3. ● To energize the output during cooling demand, set the parameter to 4. For application examples, see Relay functions [➙ 135]. Notes ● ● During heating demand, the relay contact remains Off only with electric heater or radiator (output signal on Y2/Y20 > 0 V).
Functions 4 Additional functions 4.6.4 Monitoring and limitation functions Floor temperature limitation function (P252) The floor temperature should be limited for two reasons: Comfort and protection of the floor. The floor temperature sensor, connected to multifunctional input X1, X2 or U1, acquires the floor temperature. If the temperature exceeds the parameterized limit (P252), the heating valve is fully closed until the floor temperature drops to a level 2 K below the parameterized limit.
4 Functions Additional functions Flow limitation function for Set different limits to the flow in both sequences, heating and cooling to balance combi valve (PICV) (P256, heating and cooling systems and avoid hydraulic problems caused by the different RDG260KN) flow rates. Cooling typically requires a higher flow rate than heating, and the combi valve (PICV) is mechanically and manually set to the cooling flow limit. However, when the system operates in heating mode, set another flow limitation.
Functions 4 Additional functions 4.6.5 User operation / Indication If the "Button lock" function is enabled by P028, lock or unlock them by pressing the right button for 3 seconds. If "Auto lock" is configured, the thermostat automatically locks the buttons 10 seconds after the last adjustment.
4 Functions Additional functions 4.6.6 Humidity Humidity control (P007, P450) Room humidity Humidity control limits humidity in the room according to the selected setpoint (low/high) by shifting the temperature setpoint, or by enabling outputs to release the external equipment as needed, e.g., the dehumidifier or humidifier. Humidity control is active in Comfort mode when P450 is set to 1. The function can be disabled by setting P450 to 0 (factory setting).
Functions 4 Additional functions Note The maximum temperature shift setpoint value is reached at setpoint humidity high (P024) +10%. The contact for the dehumidifier is released at setpoint humidity +15%. Dehumidification Applications with a DC 0...10 V fan: ● Enable the function to control the external dehumidifier directly via relay output by setting P400 (output Q1), P401 (output Q2) or P402 (output Q3) to 7.
4 Functions Additional functions P461 > 0 K The positive values of P461 (0.5…3.0 K) are used for heating and cooling, or heating in a humid cold environment. For heating and cooling, both temperature setpoints (heating and cooling) are shifted in parallel (i.e., dead zone remains unchanged).
Functions Additional functions 4 4.6.7 Preventive operation Avoid cold air in heating mode (P365) For the heating coil to reach its temperature, fan start can be delayed by a time period set via P365. Avoid damage from moisture (P363, P364) In very warm and humid climates, the fan runs periodically or continuously at a low fan speed (e.g., in empty apartments or shops) in Economy mode via P364, to avoid damage from moisture due to lack of air circulation.
4 Functions Control sequences 4.7 Control sequences 4.7.1 Sequence overview (setting via P001) The main control sequence (water coil sequence of the fan coil unit) can be set via P001. The following sequences can be activated in the thermostats (with or without auxiliary heating). The available sequences depend on the application (selected via DIP switches, see Application overview [➙ 37]).
Functions 4 Control sequences 4.7.2 Application mode Application mode The behavior of the thermostat can be influenced via building automation and control system (BACS) and bus using command "Application mode". Cooling, heating or both can be enabled or disabled using this signal. Application mode is supported in LTE-Mode and S-Mode. RDG2..
4 Functions Control sequences Application mode (via bus) State changeover/continuous heating or cooling Control sequence state (ACS diagnostic value) Auto (0) Heating Heating Cooling Cooling Heating Heating Cooling Heating Heating Cooling Cooling Cooling Heating Heating Cooling Cooling Heat (1), (2), (8) Cool (3), (5) Night purge (4), Fan only (9) Heating and cooling With a 4-pipe, 2-pipe with electric heater, and 2-pipe with radiator application, the control sequence state is based o
Functions 4 Control sequences 4.7.3 2-pipe fan coil unit In 2-pipe applications, the thermostat controls a valve in heating/cooling mode with changeover (automatically or manually), heating only, or cooling only (factory setting, P001 = 1). On/Off control Control sequence On/Off control output The diagrams below show the control sequence for On/Off control.
4 Functions Control sequences 4.7.4 2-pipe fan coil unit with electric heater Heating or cooling with auxiliary heater In 2-pipe applications with electric heater, the thermostat controls a valve in heating/cooling mode with changeover, heating only, or cooling only plus an auxiliary electric heater. Cooling only is factory-set (P001 = 1) with enabled electric heater (P027).
Functions 4 Control sequences In this case, an electric heater is connected directly to outputs Q2 (RDG260KN), and the current heats up the relay contact. This falsifies the internal temperature sensor reading. The thermostat compensates the temperature, if the rated power of the electric heating is entered at P217. Factory setting P217: 0.0 kW, setting range: 0.0…1.2 kW. On/Off control Control sequence On/Off output The diagrams below show the control sequence for On/Off control.
4 Functions Control sequences 4.7.5 2-pipe fan coil unit with radiator or floor heating Heating or cooling with radiator or floor heating In 2-pipe applications with radiator, the thermostat controls a valve in heating/cooling mode with changeover, heating only, or cooling only plus a radiator valve. Cooling only is factory-set (P001 = 1). Radiator, active in cooling mode In cooling mode, the valve receives an Open command if the acquired temperature is above the setpoint.
Functions 4 Control sequences Modulating control: 3-position, PWM or DC 0...10 V The diagrams below show the control sequence for modulating PI control.
4 Functions Control sequences 4.7.6 2-pipe/2-stage heating or cooling 2-stage heating or cooling In 2-stage applications, the thermostat controls 2 valves or 2-stage compressors in heating or cooling mode or changeover (automatically or manually). "Cooling only" is factory-set (P001 = 1). Heating mode In heating mode, the 1st stage is activated if the acquired temperature is below the setpoint.
Functions 4 Control sequences T[°C] w YHC1 YHC2 Modulating control: 3-position, PWM or DC 0…10 V Room temperature Room temperature setpoint Control command "Stage 1" Control command "Stage 2" SDH Switching differential "Heating" (P051) SDC Switching differential "Cooling" (P053) wD Setpoint differential (P056) The diagrams below show the control sequence for modulating PI control.
4 Functions Control sequences 4.7.7 4-pipe fan coil unit Heating and cooling In 4-pipe applications, the thermostat controls 2 valves in heating and cooling mode, heating/cooling mode by manual selection, or heating and cooling mode with changeover. Heating and cooling mode (P001 = 4) is factory-set. 4-pipe application with manual changeover The heating or cooling output can be released via operating mode button if P001 is set to Manual (P001 = 3).
Functions 4 Control sequences Heating mode with manual selection (P001 = 3) or for energy saving (P010 = 2 & P014) in heating sequence Note A6V11545892_en--_a Cooling mode with manual selection (P001 = 3) or for energy saving (P010 = 2 & P015) in cooling sequence The diagrams only show the PI thermostat’s proportional part. For setting sequence and control outputs, see Application overview [➙ 37], Sequence overview (setting via P001) [➙ 56] and Control outputs [➙ 78].
4 Functions Control sequences 4.7.7.1 4-pipe application with PICV and 6-port control ball valve as changeover (RDG260KN) In a 4-pipe fan coil application with DC 0...10 V fan control, the RDG260KN controls a combi valve (PICV) in combination with a 6-port ball valve as changeover. Note: Set DIP# 1 & 4 to ON (4-pipe with 6-port ball valve as changeover and PICV). Principle This application is used in 4-pipe systems with heat exchanger and differential pressure controller (using a PICV).
Functions 4 Control sequences 4.7.8 4-pipe fan coil unit with electric heater Heating and cooling with auxiliary heater In 4-pipe applications with electric heater, the thermostat controls 2 valves in heating and cooling mode by manual selection, heating only, or cooling only plus an auxiliary electric heater. Heating and cooling is factory-set (P001 = 4).
4 Functions Control sequences Modulating control: 3-position or PWM The diagrams below show the control sequence for modulating PI control.
Functions 4 Control sequences 4.7.9 Chilled/heated ceiling and radiator applications For chilled/heated ceiling and radiator applications ● Set the corresponding basic application see Application overview [➙ 37]. ● Disable the fan (P350) The following applications are available: Application for chilled/heated ceiling, radiator Basic application Section Sequences Chilled/heated ceiling with changeover 2-pipe 2-pipe fan coil unit [➙ 59] H C (\) (/) 2-pipe with electric 2-pipe fan coil unit El H +
4 Functions Control sequences 4.7.9.1 Chilled/heated ceiling with 6-port control ball valve (RDG260KN) The RDG260KN is able to control a 6-port control ball valve for a chilled and heated ceiling application. This application is available, if the thermostats are set as 4-pipe with 6-port ball valve applications (DIP4 = ON, see Applications for universal systems [➙ 39]). Principle Only one signal DC 0…10V (Y10 output) is used to control the 6-port control ball valve for heating and cooling.
Functions 4 Control sequences 4.7.9.2 Chilled/heated ceiling with pressure independent combi valve (PICV) and 6-port ball valve for changeover (RDG260KN) The RDG260KN is able to control a PICV for a chilled and heated ceiling application together with a 6-port ball valve for changeover. This application is only available, if the thermostat is set to a 4-pipe with 6-port ball valve as changeover and PICV application (DIP1 & DIP4 = On, see Applications for universal systems [➙ 39]).
4 Functions Control sequences When control sequences change, the thermostat closes the combi valve and releases the corresponding relay to operate the ball valve. A delay of 120 seconds is needed before the combi valves can be operated by the thermostat. When the relay to ensure the ball valve is in the right H/C position, the control signal for the combi valve is released.
Functions 4 Control sequences 4.7.11 Applications with external AQR sensor or QMX room operator unit The equipment combination is intended for commercial buildings, offices, schools, museums, shops, etc. Advantages of equipment combination AQR/QMX sensor LTE-Mode S-Mode With sensor AQR25.. or QMX3..0 A6V11545892_en--_a a) Sensor can be installed in the optimal place for temperature and humidity measurement. ✓ ✓ b) Unauthorized persons cannot change settings on sensors installed in the room.
Functions 4 Control sequences 4.7.12 2-pipe applications Setpoints and sequences In changeover applications, the Comfort setpoints for heating and cooling sequence are the same (w). In 2-pipe applications with electric heater, the Comfort setpoint is either at the first heating sequence (in heating mode) or at the cooling sequence (in cooling mode).
Functions Control sequences 4 In 4-pipe applications, the Comfort setpoint (w) is in the middle of the dead zone, between the heating and cooling sequences. The dead zone can be adjusted via P055. If manual changeover is selected, either the cooling sequence or the heating sequence is released. In this case, the Comfort setpoint is at the selected heating or cooling sequence.
4 Functions Control outputs 4.8 Control outputs 4.8.1 Overview Overview of control outputs Different control output signals are available and defined during commissioning (see below). Control output On/Off PWM 3-position DC 0…10 V On/Off 3wire Y1, Y2, Y3 (3 x PWM) Y1/Y3, --- Product No.
Functions 4 Control outputs Electric heater control signal (On/Off) The electric heater receives an On command via the auxiliary heating control output (RDG260KN: Q2, RDG200KN: Y2 or Y3, see Mounting Instructions [➙ 5] [1] & [2]), if 1. The acquired room temperature is below the "Setpoint for electric heater", 2. The electric heater is switched off for at least 1 minute. The Off command for the electric heater is output, if 1. The acquired room temperature is above the setpoint (electric heater), 2.
4 Functions Control outputs As initial setting, we suggest the following values, which can be modified within the described setting range as needed: ● Electric heater applications: 300 s (5 min) / range 30...60 s ● Electric radiator applications: 1200 s (20 min) / range 120...1800 s (30 min) ● Electric floor heating: 1200 s (20 min) / range 30...1800 s (30 min) If output Y2 controls one external solid state relay: ● Electric heater applications: 60 s / range 15...
Functions Control outputs 4 These 2 signals allow for controlling Siemens valves as well as DC 2…10 V valves by other suppliers. For the same application, RDG260KN can also provide an inverse signal DC 10…0 V or DC 10…2 V signal for inversed hydraulic connections on the valve. The selection of the signal is set with P201.
4 Functions Control outputs 4.8.2 Control output configuration (setting via DIP switches 7/8 or tool, and P201/P203/P204) Overview Application Fan DC 0...10 V 2-pipe Product no. Control outputs 3-speed/ Mod. 1-speed DC 0…10 V On/Off On/Off (2-pos) (3-wire) Mod. PWM Mod. 3-pos.
Functions Control outputs RDG200KN 4 The type of the control outputs (2- or 3-position) is set via DIP switches 7 and 8. Patterns of DIP switches 7 and 8: DIP NO.: 7…8 ➨ ON = , OFF = Y1/Y3 = 2-position (PWM) 2-position (PWM) 3-position 3-position Y2/Y4 = 2-position (PWM) 3-position 2-position (PWM) 3-position Notes ● If 2-position (PWM) is selected via DIP switches, the control output is On/Off (factory setting). To select PWM (pulse width modulation), set P201, P203 and/or P204 to 3.
4 Functions Fan control 4.9 Fan control Overview fan outputs In RDG200KN and RDG260KN, the available fan output signals are one On/Off 1speed/3-speed fan or one modulating fan DC 0...10 V and control type can be selected via P351. The fan control signal (DC 0…10 V or 3-speed) is selected via DIP switch 6, local HMI (P351) or tool (ACS, ETS or Siemens smartphone application PCT Go for Android). The fan operates in automatic mode or at the speed selected in manual mode.
Functions Fan control Fan control with modulating heating/cooling control (PWM, 3-pos or DC 0...10 V) 4 For 3-speed fan control: The individual switching points for each fan stage can be adjusted via P353…P355. The fan speed switch off point is 20% below the switch on point. The diagrams below show fan speed control for modulating PI control. For DC 0…10 V fan control: If DC 0...
4 Functions Fan control Fan control with On/Off heating/cooling control In applications with On/Off control: 1. The switching point for low fan speed is synchronized to the heating/cooling output. P353 (switching point fan speed low) is not relevant. 2. The maximum switching range of the fan (XpHFan /XpCFan) is defined by the switching differential (SDH/SDC) via a reference table. Heating/cooling 1- or 3-speed fan DC 0...
Functions 4 Fan control Fan speed III = Max. fan speed selectable via P359 (heating), P360 (cooling) Note: Manual fan settings do not influence control signals "Heating" and "Cooling". Note When heating with electric heater only, manual fan speed I is unavailable to guarantee the necessary minimum air flow for the electric heater and to avoid overheating. 2 sequences heating/cooling For heating or cooling with 2 sequences (e.g.
4 Functions Fan control Notes ● ● The output for the 1st stage (YHC1) in heating mode is also the 1st stage in cooling This function is available for DC/3-speed/1-speed fans Example 2 We recommend enabling the swap function on applications with fan coil units and floor heating/cooling. In this application, the fan runs during cooling demand (fan coil unit and floor cooling) and only in the 2nd heating stage (with the fan coil unit).
Functions 4 Fan control Combination 1st stage 2nd stage signal signal Fan type Fan synchro Fan behavior 6 On/off DC DC 2nd sequence XpH/XpC, P/PI control 7 DC On/off DC 1st sequence XpH/XpC, P/PI control 8 DC On/off DC 2nd sequence 9 DC DC 3-speed 1st sequence XpH/XpC, P/PI control 10 DC DC 3-speed 2nd sequence XpHFan /XpCFan, P-control XpH/XpC, P/PI control Fan operation as per heating/cooling mode, or disabled Fan operation can be limited to be active with cooling only or h
4 Functions Fan control ● Auto fan runs in the dead zone at low speed during cooling only (P029 = 2). During heating, the fan does not run in the dead zone. ● Auto or manual fan does not run in the dead zone (P029 = 3) ● Auto or manual fan runs in the dead zone at low speed during heating and cooling (P029 = 4) ● Auto or manual fan runs in the dead zone at low speed during cooling only (P029 = 5). During heating, the fan does not run in the dead zone.
Functions Fan control Fan operation with combi valve PICV and a 6-port ball valve as changeover A6V11545892_en--_a 4 Fan control is set to enable by default (P350 = 1), if the thermostat is set with control sequence “H/C ceiling with PICV and 6-port ball valve as changeover”.
Functions 4 Multifunctional input, digital input 4.10 Multifunctional input, digital input The thermostat has 3 multifunctional inputs X1, X2 and U1. Input U1 will be configured as digital input in a future product version. An NTC type sensor like NTC 3k, a LG-Ni1000 (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 P150 + P151 for X1, P153 + P154 for X2, and P155 + P156 for U1.
Functions 4 Multifunctional input, digital input # Input function Description Type X1/X2/U1 DI 7 Monitor input (digital) Digital input to monitor the state of an external switch via bus 8 Monitor input (temperature) Sensor input to monitor the state of an external sensor (e.g., NTC 3k) via bus. AI 9 Supply air temperature limitation Sensor input to acquire supply air temperature. The thermostat controls the room temperature via built-in sensor. The control output (DC 0...
4 Functions Handling system faults 4.11 Handling system faults Temperature out of range If the room temperature exceeds or drops below 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.
Functions KNX communications 4.12.2 4 LTE-Mode LTE-Mode was specifically designed to simplify engineering. Unlike with S-Mode, individual connections (group addresses) need not be created in the tool. The devices autonomously establish connections.
Functions 4 KNX communications Geographical zone (space zone) (Apartment . Room . Subzone) Apartment = ---, 1...126 Room = ---, 1...63 Subzone = fix 1 Zone where an RDG2..KN KNX room thermostat is physically located. Other room-specific devices may also be located in this zone. Information exchanged in this zone is related specifically to the device like operating mode, setpoints, room temperature, etc. The designations "Apartment", "Room" and "Subzone" are not necessarily literal. E.g.
Functions KNX communications 4.12.4 4 Example of heating and cooling demand zones The building is equipped with Synco controls on the generation side and RDF../RDU../RDG.. room thermostats on the room side. Explanation relating to the illustration In the case of a typical application, the individual RDF../RDG.. room thermostats send their heat demand to the primary controller (in the above example to the RMH760). (1) and (2) designate the numbers of the distribution zone.
4 Functions KNX communications 4.12.5 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 is received at least once. If a communication object is not received within this period, a predefined value is used.
Functions 4 KNX communications 4.12.8 Fault and alarms function on KNX A fault is sent on the bus in the event of a fault (e.g., digital fault input, dewpoint, communication configuration, etc.). An RDG2..KN room thermostat monitors the bus and sends a fault, if the fault has the highest alarm priority. This ensures that the management station does not miss any alarms. The alarm with the highest priority is displayed first and sent over the bus if alarms occur at the same time.
4 Functions Communication objects (S-Mode) 4.13 Communication objects (S-Mode) 4.13.
Functions Communication objects (S-Mode) Object No.
4 Functions Communication objects (S-Mode) 4.13.2 Obj 1 Object name System time Description of communication objects Function Time and date Type/ length 19.001 8 bytes Flags CWU System time for display on the room thermostat. See P009 (3 or 4) 2 Date Date 11.001 3 bytes CWU Obj 9 10 11 12 Object name Function Room operating Trigger mode: Preselection - Auto - Comfort - Economy - Protection Type/ length 1.017 1 bit Flags CW Day, month and year for display on the room thermostat.
Functions 4 Communication objects (S-Mode) Obj 21 Object name Room temp: [P19] Economy heating setpoint Function Type/ length Temperature 9.001 2 bytes Flags CW Communication object adjusts the Economy heating setpoint used by the thermostat (see Setting and adjusting setpoints [➙ 34]). It directly changes the value of the local parameter "Economy heating setpoint" P019. S-Mode object needs to be enabled by setting Room temperature: Economy Setpoint to as group object in ETS.
4 Obj 35 Functions Communication objects (S-Mode) Object name Extended comfort mode status Function ON OFF Type/ length 1.011 1 bit Flags CRT Indicates the status of Comfort mode extension. 36 External room temperature value Temperature 9.001 2 bytes CWU The thermostat receives and works with the room temperature from an external sensor. 37 Built-in room temperature value Temperature 9.
Functions 4 Communication objects (S-Mode) Obj 53 Object name Fan output Function 0…100 % Type/ length 5.001 1 byte Flags CRT Obj 65 Object name Heating, control value status Function Off On Type/ length 1.011 1 bit Flags CRT Indicates the current fan speed as a value 0...100 %.
4 Obj 75 Functions Communication objects (S-Mode) Object name Hum. Control mode Function Inactive Humidification Dehumidification Type/ length 20.115 1 byte Flags CRT Indicates the mode of the humidity control function: 0 = inactive 1 = humidification; relative humidity lower than setpoint low P026 2 = dehumidification; relative humidity higher than setpoint high P024 3…255 = not used 76 Enable electric heater Enable/disable 1.
Functions Communication objects (LTE-Mode) 4 4.14 Communication objects (LTE-Mode) RDG Geographical zone A.R.S Room operating mode: Time switch (Time switch zone) X.1.1/X.Y.1 Application mode Room operating mode: Preselection Geographical zone A.R.S X.Y.1 Room temperature Comfort setpoint Room humidity [% r.h.] Setpoint heating Setpoint cooling Fan speed Setpoint shift heating Setpoint shift cooling Heat distr. zone Heating coil energy demand heating coil Heating/cooling changeover Ref. distr.
4 Functions Control parameters 4.15 Control parameters To optimize control performance, a number of control parameters can be readjusted on the thermostat via HMI, commissioning/operating tool, or Siemens smartphone application PCT Go for Android. 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.
Functions Control parameters 4.15.2 4 Setting/downloading parameter via tool The control parameters can be adjusted via bus either by parameter download during commissioning or during normal operation with a tool like ACS.
4 Functions Control parameters 4.15.3 Commissioning parameter via Smartphone app PCT Go The Siemens smartphone application Product Commissioning Tool (PCT Go) for Android is a commissioning tool to: ● Read and write thermostat parameters ● Set the application (e.g. 2-pipe) ● Change settings (e.g. setpoints) ● Set KNX addressing (device address) Quickly setting the devices is useful, if e.g.: ● System and system commissioning tools are not available. ● Function and wiring test need to be carried out.
Functions 4 Control parameters 2-pipe: 1 = Cooling only 4-pipe: 4 = Heating and cooling P002 Operation via room operating mode selector 1) 1 Dependencies Control sequence 1) RDG260KN P001 Service level RDG200KN Parameter Name Range Service level parameters Factory setting 4.15.
Functions 4 Control parameters Range RDG200KN RDG260KN Dependencies P026 Humidity setpoint low OFF OFF (0), 20…90 % or P024 ✓ ✓ P450 P027 3) Electric heater when cooling ON ON: Enabled ✓ ✓ Appl ✓ ✓ ‒ ✓ ✓ P350 ✓ ✓ ‒ ✓ ✓ ‒ Parameter Factory setting Name Service level OFF: Disabled P028 Keypad 0 0 = Unlocked 1 = Auto lock 2 = Manual lock 3 = Lock the operating mode 4 = Lock the Setpoint shift 5 = Lock fan speed 6 = Lock operating mode and setpoint shift 7 = Lock operating
Functions Control parameters 4.15.5 4 Expert level parameters with diagnostics and test Factory setting Range RDG200KN RDG260KN Dependencies Name P050 Heat P-band Xp 2K 0.5…6 K ✓ ✓ ‒ P051 Switching differential heating 1K 0.5…6 K ✓ ✓ ‒ P052 Cool P-band Xp P053 Switching differential cooling P054 Radiator P-band Xp/switching differential 2K 0.5…6 K ✓ ✓ ‒ P055 Dead zone Comfort mode 2K 0.5…5 K ✓ ✓ ‒ P056 Setpoint differential 2K 0.
Functions 4 RDG260KN Dependencies RDG200KN Expert level P150:1 P153: 0 P155: 3 0 = --- (no function) 1 = Room temp ext.
Functions Control parameters RDG200KN RDG260KN 20…3600 s ✓ ‒ P206: P201 P207: P203 P208: P204 5% 1…20 % ✓ ‒ ‒ 1 min 1…20 min ✓ ✓ ‒ 150 s 20…300 s ✓ ‒ P214: P201 P215: P203 RDG26xKN: Power of electric heater on Q2 0 kW 0.0…1.2 kW ✓ ✓ ‒ P250 Valve kick OFF ON = Enabled OFF = Disabled ✓ ✓ ‒ P251 7) Purge time (every 2 hours) OFF OFF(0, Not active), 1…5 min ✓ ✓ ‒ P252 8) Flow temp limit floor heating 28 °C (82 °F) 10...
Functions 4 Control parameters Range RDG200KN RDG260KN Dependencies P365 Fan start delay 0s 0...
Functions 4 Control parameters Diagnostics and test Parameter Name Range Dependencies Diagnostics and test d01 Application number 0= 1= 2= 3= 4= 5= 6= 7= 8= 9= d02 X1 state "---" = Function not selected 0 = Not activated (for DI) 1 = Activated (DI) 0…49 °C = Current temp.
5 Supported KNX tools ETS 5 Supported KNX tools 5.1 ETS ETS ETS is an engineering tool to fully commission RDG2..KN room thermostats. ETS can implement the following functions: ● Define and download the physical address ● Define and download the application (plant type, control sequence) ● Set up and download thermostat control parameters ● Set up and download group addresses This document does not describe how to operate ETS and set up a device. Refer to the KNX Manual [5] [➙ 5] for more details.
Supported KNX tools ETS 5 5.1.1 Setting parameters in ETS 1 Open the project in ETS and select a device.
5 Supported KNX tools ETS 3 Plant type (application), Control Sequence and other control parameters ([Pxx] description) can be downloaded. For more details on control parameters, see Control parameters [➙ 108].
Supported KNX tools ACS tool Humidity parameters 5 1 Select Room relative humidity in the left pane to display humidity parameters. 2 Adjust the parameters as needed. See Control parameters [➙ 108] for more details on control parameters. 3 Select as group object in checkbox Humidity setpoints, to display the SMode humidity setpoint in the Group Objects tab as follows: 4 Select Receive in checkbox Room relative humidity. The thermostat then receives the room’s relative humidity from an external sensor.
5 Supported KNX tools ACS tool 5.2.1 Setting parameters in ACS In the ACS program, select Plant ➙ Open to open the plant. To open the parameter settings, select Applications ➙ Plant engineering. The application and control parameters can be adjusted and downloaded. Line no. contains the parameter number as displayed in the parameter table. See Control parameters [➙ 108]. Note! 122 | 150 Some parameters in ACS have a range different from that on the room thermostats.
Supported KNX tools ACS tool 5 5.2.2 Operation and monitoring with ACS In the ACS program, select Plant ➙ Open to open the plant. To open monitoring and operation, select Applications ➙ Plant operation. ACS Parameter settings in ACS The ACS tool supports parameter settings even during normal operation. To change a control parameter, double-click the parameter in Standard popcard for the settings. Notes A6V11545892_en--_a ● ● Make sure you are logged in with sufficient access right.
5 Supported KNX tools ACS tool Plant diagram in ACS The ACS tool offers plant diagrams for easy monitoring and operation of the thermostat. To start the application, select Applications ➙ Plant operation ➙ Standard diagram. The ACS tool provides standard plant diagrams for RDG2..
Supported KNX tools ACS tool Plant type Application configuration 2-pipe with 2-pipe fan coil unit with electric heater electric – Control sequence: No impact heater (P001 = any) – Fan operation: Enabled (P350 <> 0) 2-pipe with 2-pipe fan coil unit with radiator radiator – Control sequence: No impact (P001 = any) – Fan operation: Enabled (P350 <> 0) 4-pipe 5 Application configuration Single-stage with electric heater – Control sequence: No impact (P001 = any) – Fan operation: Disabled (P350 = 0) Sin
5 Supported KNX tools ACS tool Plant type Application configuration Application configuration 2-pipe/2stage heating or cooling 2-pipe/2-stage fan coil unit 2-pipe/2-stage – Control sequence: No impact (P001 = any) – Control sequence: No impact (P001 = any) – Fan operation: Enabled (P350 <> 0) 2-pipe/2-stage fan coil unit 2-pipe/2-stage – Control sequence: No impact (P001 = any) – Control sequence: No impact (P001 = any) – Fan operation: 2nd stage (P350 = 4) 4-pipe with 4-pipe fan coil unit w
Supported KNX tools ACS tool 5 5.2.4 Operation and monitoring with OZW772 HomeControl app for plant control The OZW772 web server allows users to operate a Synco HVAC system from a remote location – via a PC or from a smart phone using the HomeControl app. The start page displays the most important data points. A combination of menu/path navigation allows users to access all data points quickly and easily. The entire installation can be visualized in the form of plant diagrams.
6 Connection Connection terminals 6 Connection 6.
Connection Connection diagrams 6 6.
6 Connection Connection diagrams RDG260KN DC 0…10 V fan Application V1 2-pipe YHC V2 V3 Terminals Control outputs: YR 4-pipe YH YC DC DC DC On/Off Q2 On/Off DC V1 On/Off On/Off V1 V2 Q1 Q2 YHC Y30 Y50 Q1 Q2 Q3 Y10 Y20 Y30 ✓ ✓ ✓ ✓ V1 ✓ ✓ ✓ ✓ DC DC DC On/Off Y20 V1 V2 Y30 V1 V2 V2 On/Off DC V1 On/Off On/Off V1 V2 Q1 Q2 YH Y10 Y50 Q1 Q2 Q3 Y10 Y20 Y30 ✓ ✓ ✓ ✓ V1 V2 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Y50 Q1 Q2 Q3 Y10 Y20 ✓ ✓ ✓
Connection Connection diagrams RDG260KN Chilled/heated ceiling with 6-port control ball valve 6 4-pipe with 6-port ball valve as changeover and PICV Application N2 Room thermostat RDG260KN V3 6-port modulating control actuator S1, S2, S3 Switch (keycard, window contact, presence detector etc.) V4 PICV control valve B1, B2, B3 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.
6 Connection Application examples 6.3 Application examples The examples are described for RDG260KN, but they also apply to RDG200KN. Control output (P201, P204) and terminals for the valves (Y1, Y2) need to be adapted accordingly. 6.3.1 Humidity control Note: In the following examples, P461 is configured based on the connected type of equipment. See details in Humidity [➙ 52]. Example 1: Dehumidifier, DC 0...
Connection Application examples Example 2: Dehumidifier, DC 0...10 V fan + valve, No shifting setpoint 6 2-pipe fan coil application for dehumidification, with DC 0...10 V fan and DC valve (without temperature setpoint shifting): Commissioning ● Fan ● ● Control strategy Setpoint high ● ● ● Temp. shift Valve Relay function Outputs used P351 = 3 (or DIP6 = OFF) P450 = 1 P024 = 50 % (factory setting) P461 = 0 P201 = 5 P402 = 7 (dehumidifier) ● ● ● M1 DC 0...
6 Connection Application examples Example 4: Dehumidifier + humidifier/DC 0...10 V fan 2-pipe fan coil application for dehumidification, with temperature setpoint shifting, dehumidifier contact, DC 0...10 V fan and DC valve, humidification is controlled by release contact: Commissioning ● Fan ● ● Control strategy Setpoint high ● ● Setpoint low Temp.
Connection Application examples 6 6.3.2 Relay functions Example 1: Switching off the fan coil unit 2-pipe fan coil application, fan coil unit off during Protection mode. Commissioning ● Fan ● ● Valve Relay function Outputs used P351 = 3 (or DIP6 = OFF) P201 = 5 P402 = 1 (Protection mode) ● ● ● ● M1 DC 0...10 V fan V1 DC valve L3*) Fan coil K Relay *) Release contact RDG260KN See Technical data [➙ 140] for min. and max.
6 Connection Application examples Example 3: Compressor and reversing valve Compressor application, with reversing valve (heating/cooling) and DC 0...10 V fan: Commissioning Outputs used ● ● ● ● ● Application Control output Fan 4-pipe P201 = 4 (On/Off) P351 = 3 (or DIP6 = OFF) Relay function Heating/cooling – ON in demand: P401 = 2 – Energized mode: Heating P401 = 5 – Energized mode: Cooling P401 = 6 M1 DC 0...
Connection Application examples 6 6.3.3 Swap function and/or fan in the 2nd stage Example 1: Fan in the 2nd stage 2-pipe fan coil application for floor heating/cooling (2-stage heating/cooling), fan runs only in the 2nd stage: Commissioning ● ● ● Fan Valve Valve Outputs used P350 = 4 (2nd stage) P201 = 5 (floor) P203 = 5 (fan coil unit) ● ● ● M1 V1 V2 DC 0...10 V fan DC valve floor DC valve fan coil units RDG260KN See Technical data [➙ 140] for min. and max.
6 Connection Application examples Example 2: Swap and fan in the 2nd stage 2-pipe and 2-stage application with radiant heating/cooling panels, the fan only operates with the fan coil unit: ● Heating sequence: 1st panel and 2nd fan coil unit ● Cooling sequence: 1st fan coil unit and 2nd panel Commissioning ● Fan ● ● Valve Valve ● Swap Outputs used ● P350 = 6 (Cooling and 2nd stage heating) ● P201 = 5 (panel) ● P203 = 5 (fan coil unit) P254 = 1 M1 V1 V2 DC 0...
Connection Application examples Example 3: Swap and fan in the 2nd stage 6 2-pipe fan coil and 2-stage application with different types of equipment (On/Off control outputs), the fan only operates if output V1 is energized. Commissioning ● Fan ● Valve ● Valve Outputs used ● P350 = 5 (Heating and 2nd stage cooling) P201 = 2 (equipment ● 1) P203 = 2 (equipment ● 2) M1 V1 V2 DC 0...
7 Technical data 7 Technical data Power supply (RDG200KN) Operating voltage (L-N) AC 24 V ±20 % or AC 230 V +10/-15 % (selectable via slider) Frequency 50/60 Hz Power consumption 4 VA @ AC 24 V 7 VA @ AC 230 V ● No internal fuse! External preliminary protection with max. C 10 A circuit breaker required in all cases. ● Before switching on power, select the right power supply needed using the power switch on the rear of the device.
Technical data 7 Power supply (RDG260KN) Operating voltage (G-G0) DC 24 V: Make sure to connect G to + and G0 to - AC 24 V ±20 % DC 24 V ±2 V Frequency 50/60 Hz Power consumption 4 VA @ AC 24 V No internal fuse! External preliminary protection with max. C 10 A circuit breaker required for all cases.
7 Technical data Multifunctional inputs Temperature range -20…70 °C Temperature sensor input Type LG-Ni1000 Temperature range -40…70 °C Digital input Operating action Selectable (NO/NC) Contact sensing DC 0…5 V, max. 5 mA Insulation against mains SELV KNX bus Interface type KNX, TP Uart 2 (electrically isolated) Bus current 5 mA Bus topology: See KNX manual ("Reference documentation") Operational data Switching differential, adjustable Heating mode (P051) 1 K (0.
Technical data 7 Operational data Humidity calibration range ±10 % Settings and display resolution Setpoint 0.5 °C Present temperature value displayed 0.5 °C Environmental conditions Storage IEC 60721-3-1 Climatic conditions Class 1K3 Temperature -25…65 °C Humidity < 95 % r.h. Transport IEC 60721-3-2 Climatic conditions Class 2K3 Temperature -25…65 °C Humidity < 95 % r.h.
7 Technical data Standards and directives Eco design and labeling directives Based on EU directive 813/2013 (Eco design directive) and 811/2013 (Labelling directive) concerning space heaters, combination heaters, the following classes apply: RDG200KN ● Application with On/Off operation of Class I value 1 % a heater ● PWM (TPI) room thermostat, for use Class IV value 2 % with On/Off output heaters RDG260KN ● Application with On/Off operation of Class I value 1 % a heater ● PWM (TPI) room thermostat, for
Technical data 7 Reference documentation Handbook for Home and Building Control - Basic Principles (EN: https://my.knx.org/shop/product?langua ge=en&product_type_category=books& product_type=handbook DE: https://my.knx.
8 Dimensions 8 Dimensions Dimensions in mm 146 | 150 A6V11545892_en--_a
Index Index Numerics 1-speed .......................................................... 3-position control signal .................................... 3-speed .......................................................... 6-port ball valve ............................................... 86 78 86 74 A ACS tool ....................................................... 121 Adaptive temperature compensation .................. 60 Automatic heating/cooling changeover .......... 43, 56 B Basic application .......
Index Manually select heating or cooling sequence ....... 56 Minimum output ............................................... 46 Moisture.......................................................... 55 Monitoring with ACS ....................................... 123 Monitoring with OZW772................................. 127 Multifunctional input.......................................... 92 N NFC ............................................................... 55 O On/Off control signal ......................
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