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Solar controller SOL3-7 Installation and operating manual Firmware version 1.07 June 2011...
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Installation and operating manual KT-Elektronik Warranty We permanently enhance our products, therefore we reserve the right to make changes to our products at any time and without prior notice. We take no responsibility for the accuracy or completeness of this manual. No liability can be accepted for the use of our products for a buyer specific purpose.
KT-Elektronik SOL3-7 Table of contents 1 Operation .......................... 1.1 Controls ........................1.1.1 Rotary switch ....................... 1.1.2 Rotary pushbutton ....................1.2 Operating ........................1.3 Display ........................1.3.1 System scheme ....................1.3.2 Operating Mode ....................1.4 Retrieving data – Information level ................
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Installation and operating manual KT-Elektronik 5.13 External heat exchanger ..................5.14 Auxiliary heating with secondary heat generator ........... 6 Heating circuit functions ....................6.1 Prescribing the room temperature set-points ............6.2 Weather-compensated control ................. 6.2.1 Gradient characteristic ..................6.2.2 4-point characteristic ..................
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KT-Elektronik SOL3-7 10.3 Communication module KOM232M ..............10.4 Data Modem DataMod11 ..................10.5 ModBus-MBus-Gateway ..................10.6 USB communication cable USB-L3 ..............10.7 Modbus-TCP-Gateway ..................10.8 Description of the adjustable communication settings .......... 10.9 Memory module ....................10.10 55Viewer for visualization and remote maintenance..........
Installation and operating manual KT-Elektronik 1 Operation The controller is factory-provided with standard temperature settings and timing programs and therefore ready for use. The current date and time have to be set at initial operation of the controller (Chapter 1.5).
KT-Elektronik SOL3-7 1.1.1 Rotary switch The rotary switch is used to select the operating mode on the left hand and the basic settings of the controller on the right hand. Rotary switch – operating mode Control on, display informations about...
1.3 Display The controller SOL3-7 it equipped with a graphical display. The display allows it to visualize the current system scheme with all relevant sensor informations as welll as state informations of pumps and valves for a quick overview of the operating condition of the system.
KT-Elektronik SOL3-7 1.3.1 System scheme With the on the display shown system scheme, the relevant sensor information, the operating mode of the control circuits and state information of pumps and valves for a quick overview of the operating condition can be visualized.
Installation and operating manual KT-Elektronik 1.3.2 Operating Mode The operation of the heating circuit, hot water circulation and auxilary heating can be affected depending on time and day of week. There are two different set-points for night and day exist. A usage schedule determines when to operate in day-time operating mode or night-time operating mode.
KT-Elektronik SOL3-7 1.4 Retrieving data – Information level At the normal rotary switch position ,„Information level“, the system scheme, time, date as well as relevant temperatures measured by the connected sensors and state informations of pumps and valves of the selected hydraulc schema.
Installation and operating manual KT-Elektronik 1.5 Setting the system time The current time and date must be set immediately after the commision and after a power failure of more than 24 hours. In this case, the system time on the clock 01/01/2000 10:00 preset and is displayed inverted (white on black) .
Domestic water circulation For systems that do not contain the functional groups mentioned, this chapter has no meaning, the display and input of times-of-use is not offered by the SOL3-7. The following applies to each usage schedule: For each day of the week, three time ranges can be programmed. If only one time range is needed, the start and end time of the second range have to be set to the same value.
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Installation and operating manual KT-Elektronik Procedure: Set rotary switch to times-of-use Times-of-use for heating circiut is graphicaly shown, name of times-of-use is displayed inverted. Select times-of-use to view heating circuit • hot water circulation • auxilary heating • Confirm times-of-use to modify...
KT-Elektronik SOL3-7 1.7 Setting the party mode (heating circuit/auxiliary heating) Using the Party mode function, the controller continues or activates the nominal operating mode (day) during the time when the party timer is active, regardless of the programmed times-of-use. The activation of the party mode (count down) starts with turning the rotary switch to any operating mode position (e.g.information level).
Installation and operating manual KT-Elektronik 1.8 Setting holidays On public holidays the times-of-use entered for Sunday apply. The number of programm- able holidays is limited to 20. Once programmed the holidays are valid every year. Procedure: Set rotary switch to configuration and settings...
KT-Elektronik SOL3-7 1.9 Setting vacation times During vacation times the system is set to permanent reduced operation. The number of programmable vacation times is limited to 10. Procedure: Set rotary switch to configuration and settings level Display: Settings menue (LCD contrast selected)
Installation and operating manual KT-Elektronik 1.10 Access advanced information level After entering the access code 1999 the following informations are accessible through the menu items as described in chapter 1.4: •Measured values for not needed sensor inputs of current system layout •Valve positions...
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KT-Elektronik SOL3-7 Provide advanced information level: Set rotary switch to configuration and settings level Display: Settings menue (LCD contrast selected) Select item 'PA1' (respectively 'PA3') Confirm selection Set access code (key number) 1999 Confirm access code (key number) 1999 Display: Settings menue ('PA1' selected)
KT-Elektronik 1.11 Trend show – Data logging The device SOL3-7 is equipped with an internal memory capacity. Every minute the controller saves data into this memory, in order to analyze in retrospect the operation of the device without use of additional tools.
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KT-Elektronik SOL3-7 Usage of the trend show Set rotary switch to Information level Display: System scheme Select 'trend show' Confirm Selection 'trend show' Display: Trend show settings Select item Confirm selection to modify the item Select 'end' Confirm selection 'end'...
Additionally the standard code can be replaced by an individual one (Chapter 8.5). 2.1 Set language The device SOL3-7 will delivered with german language as factory default language. It is possible to use other languages. Procedure:...
KT-Elektronik SOL3-7 2.2 Setting the system variant ID Several hydraulic system variants are available. Each variant is represented by an identification number. The variants are illustrated in chapter 4. The available controller functions are described in chapters 5, 6 and 7.
Installation and operating manual KT-Elektronik 2.3 Activate and deactivate functions Each function can be activated within its related function block. The sequence of numbers shown at the head of the display (0 to 24) represent the function block numbers. When accessing the configuration level, a black square is displayed right hand below active function block numbers.
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KT-Elektronik SOL3-7 Procedure: Set rotary switch to configuration and settings level Display: Settings menue (LCD contrast selected) Select 'CO3' in Settings menue Confirm selection Display: Access code (Key number) Set valid key number (chapter13.9) Confirm key number Display: Configuration menue 'CO3'...
Installation and operating manual KT-Elektronik 2.4 Edit settings Depending on the current system variant ID and active functions, not all parameters listed in the parameter list in the Appendix will be accessible (Chapter 13.2). The functions are grouped by topic:...
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KT-Elektronik SOL3-7 Procedure: Set rotary switch to configuration and settings level Display: Settings menue (LCD contrast selected) Select 'PA3' in Settings menue Confirm selection Display: Access code (Key number) Set valid key number (chapter13.9) Confirm key number Display: Settings menue 'PA3'...
Installation and operating manual KT-Elektronik 2.5 Sensor calibration The controller is designed for connection of Pt1000-sensors. The sensor values of resistance are listed on page 100. If the temperature values displayed by the controller do not match the real temperatures, the measured values of the connected sensors can be adjusted.
KT-Elektronik SOL3-7 2.6 Reset to factory default settings All parameters set by means of the rotary switch as well as the parameters set in level PA1 to PA5 can be reset to factory default settings, except the maximum flow temperature and return flow temperature thresholds in level PA1.
Installation and operating manual KT-Elektronik 3 Manual operating mode The manual operating mode allows the configuration of all outputs (chapter 12). Procedure: Set rotary switch to manual mode Display: System scheme and 'Collector 1' Select switching output or valve Confirm selected output...
KT-Elektronik SOL3-7 4 System variants 117 hydraulic system variants are available. They differ in the first instance in: • Number of collector arrays, • Number of storages, • Switching between several collectors or storages by means of switching valves or several pumps, •...
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Installation and operating manual KT-Elektronik 2 I.0.0 System variant Two collectors (switching valve), one storage tank 3 I.0.0 System variant Two collectors (two pumps), one storage tank EB_37388_SOL3-7_EN001...
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KT-Elektronik SOL3-7 I o I.0.0 System variant One collector, one storage, external heat exchanger 2 o I.0.0 System variant Two collectors (switching valve), one storage tank, external heat exchanger EB_37388_SOL3-7_EN001...
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Installation and operating manual KT-Elektronik 3 o I.0.0 System variant Two collectors (two pumps), one storage tank, external heat exchanger I 2.0.0 System variant One collector, two storage tanks (switching valve) EB_37388_SOL3-7_EN001...
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KT-Elektronik SOL3-7 2 2.0.0 System variant Two collectors (switching valve), two storage tanks (switching valve) 3 2.0.0 System variant Two collectors (two pumps), two storage tanks (switching valve) EB_37388_SOL3-7_EN001...
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Installation and operating manual KT-Elektronik I o 2.0.0 System variant One collector, two storage tanks (switching valve), external heat exchanger 2 o 2.0.0 System variant Two collectors (switching valve), two storage tanks (switching valve), external heat exchanger EB_37388_SOL3-7_EN001...
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KT-Elektronik SOL3-7 3 o 2.0.0 System variant Two collectors (two pumps), two storage tanks (switching valve), external heat exchanger I 3.0.0 System variant One collector, two storage tanks (two pumps) EB_37388_SOL3-7_EN001...
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Installation and operating manual KT-Elektronik 2 3.0.0 System variant Two collectors (switching valve), two storage tanks (two pumps) I o 3.0.0 System variant One collector, two storage tanks (two pumps), external heat exchanger EB_37388_SOL3-7_EN001...
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KT-Elektronik SOL3-7 2 o 3.0.0 System variant Two collectors (switching valve), two storage tanks (two pumps), external heat exchanger 3 o 3.0.0 System variant Two collectors (two pumps), two storage tanks (switching valve), external heat exchanger EB_37388_SOL3-7_EN001...
Installation and operating manual KT-Elektronik 4.1 Extending the basic system variant representations Each system image shown can be enlarged to include other functions. These additional functions can be combined with each other. The functions heating circuit, auxiliary heating and circulation are identified by the last two digits of the system variant ID: xxx.0.0...
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KT-Elektronik SOL3-7 I o 2. I.0 System variant (with auxiliary heating) One collector, two storage tanks (switching valve), external heat exchanger I o 2.2.0 System variant (with circulation pump) One collector, two storage tanks (switching valve), external heat exchanger EB_37388_SOL3-7_EN001...
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Installation and operating manual KT-Elektronik I o 2. I. I System variant (with heating circuit and auxiliary heating) One collector, two storage tanks (switching valve), external heat exchanger EB_37388_SOL3-7_EN001...
KT-Elektronik SOL3-7 5 Solar circuit functions 5.1 Basic Control function The controller monitors the collector temperature (sensor CF) as well as the storage temperature (sensor SF) and turns the collector pump (CP) on once enough solar energy is available to heat up the storage.
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Installation and operating manual KT-Elektronik A) The collector temperature exceeds the storage temperature by more than the turn-on threshold (8 K). The collector pump is turned on. B) The collector temperature dropped below the turn-off threshold (SF + 4 K). The collector pump is turned off.
(turn-on condition) PA3.06 The solar thermal controller SOL3-7 is used to transfer the usable solar energy into the storage tanks in systems with two storage tanks according to the priority presetting and the programmed parameters. The scope of application of the saved energy is irrelevant for this process.
5.3 Swimming pool The solar controller SOL3-7 is suitable for the solar heating of swimming-pools. Any usable solar energy is transferred in a swimming pool, which can be selected as a storage tank 1 or storage tank 2 with the given storage tank priority mode.
KT-Elektronik SOL3-7 5.4 Collector return flow sensor, Collector flow sensor In several systems, the sensors for collector temperature and for storage tank temperature are not really appropriate to decide if the collector pump should be already turned off or not. It is possible that fluid with a higher temperature than measured by the storage tank sensor flows from the storage tank to the collector, e.g.
Installation and operating manual KT-Elektronik 5.5 Measurement of solar power and solar energy To document the solar gain of the solar system, a heat meter has been implemented, which determines the heat quantity provided by the solar system by means of the flow and return flow temperature and a flow volume sensor (quantity impulse generator) respectively a flow volume sensor replacement value.
KT-Elektronik SOL3-7 Function Description Energy measurement CO3 -> F05 – 1 – Heat meter active Heat capacity 25°C 1.16 Heat capacity of carrier medium at 25 °C in Wh/ (Litre*K) / 0.3 to 2.5 Wh/(LK) Heat capacity 100°C 1.12 Heat capacity of carrier medium at 100 °C in Wh/ (Litre*K) / 0.3 to 2.5 Wh/(LK)
Installation and operating manual KT-Elektronik A rotation speed control is only available for one single pump. This might therefore not be reasonable for system variants with more than one pump. In system variants with external heat exchanger, the storage circuit rotation speed is always regulated whereas the pump (- s) in the collector circuit are run with a constant rotation speed.
KT-Elektronik SOL3-7 5.8 Collector minimum temperature A minimum collector temperature can be set, underneath which the pump is not turned on at all. This can be reasonable in cases where it is known that the solar gain ratio lays below the pump power ratio.
Installation and operating manual KT-Elektronik 5.11 Collector Antifreeze Solar systems with no antifreeze medium can be run in regions where frost just appears sporadically. In case that the temperature really should drop below the dew point, the controller is able to turn on the pump in order to prevent a freezing of the collector.
KT-Elektronik SOL3-7 5.13 External heat exchanger When operating installations with system separation of collector and storage tank, an external heat exchanger may be installed. An additional exchanger pump CTP is required in this case. Turn-on condition: The start of the exchanger pump CTP is delayed by the setting 'turn-on delay CTP', if the temperature difference between collector and storage still matches the turn-on condition after one of the collector pumps CP1/CP2 have been turned on.
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Installation and operating manual KT-Elektronik more favourable heat source with just a slight impairment of comfort. The collector circuit has no impact on auxiliary heating if this parameter is set to 0K (default factory setting). Secondary heat generators allow thermal disinfection.
KT-Elektronik SOL3-7 6 Heating circuit functions The following sensors are available for the heating circuit: Flow sensor Outdoor sensor Ambient/Room sensor AF and RF can individually be activated and deactivated at configuration level CO1. All available controller functions can only be used if all sensors are installed. A weather- compensated control is not available without an outdoor sensor, a room control is not available without a room sensor.
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Installation and operating manual KT-Elektronik Advices to adjust gradient and level: If the room temperatur in cold season don't rises up to the room temparture • setpoint the Gradient needs to be increased. If the room temperatur in cold season rises over to the room temparture set-point •...
KT-Elektronik SOL3-7 Example characteristic settings: Old building, radiator performance/layout 90/70: gradient approx. 1.8 New building, radiator performance/layout 70/55: gradient approx. 1.4 New building, radiator performance/layout 55/45: gradient approx. 1.0 Underfloor heating depending on laying: gradient below 0.5 6.2.2 4-point characteristic By means of the 4-point characteristic one can define its own heating characteristic.
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Installation and operating manual KT-Elektronik Setting Parameter level / Value range Outdoor temperature –15 °C PA1 / -40 to 50 °C Point 1 (P1) –5 °C Point 2 (P2) °C Point 3 (P3) 15 °C Point 4 (P4) Flow temperature °C...
KT-Elektronik SOL3-7 6.4 Two-point control The flow temperature can, for example, be controlled by switching a valve on and off. The valve is turned on once the flow temperature drops T = 0,5 x differential gap below the set- point. Once the flow temperature exceeds T = 0,5 x differential gap the valve is turned off again.
Installation and operating manual KT-Elektronik 6.5 Underfloor heating/screed drying By setting the function F05 to -1 in function block CO1, the associated heating circuit is configured to work as an underfloor heating circuit. In the first place, this action only limits...
KT-Elektronik SOL3-7 6.6 Deactivation depending on the outdoor temperature 6.6.1 OT deactivation temperature for daytime operating mode Once the outdoor temperature exceeds the threshold entered for the daytime operating mode, the heating circuit to which the value applies is deactivated. The valve closes and the pump is shut-off after t = 2 x valve closing time.
Installation and operating manual KT-Elektronik 6.6.4 Summer operating mode (OM) Relevant for switching into summer OM is the average temperature per day (measured and calculated between 07:00 and 22:00 hours) during the programmed time period. Once the calculated average OT exceeds the programmed OT for a consecutive number of days n, the summer OM is activated the following day: the valves of all heating circuits are closed and the circulating pumps are shut-off after t = 2 x valve closing time.
KT-Elektronik SOL3-7 6.8 Remote operation In all system variants a room temperature sensor including operating mode selector is connectable on terminal No. 5. Other functions of the terminal like binary contacts are deactivated in this case. Apart from measuring the room temperature, a Room Panel (Pt 1000 sensor) provides the...
This primary energy source works self- sufficiently, therefore the compact solar controller SOL3-7 has no influence on their function. The heating circuit return flow is equipped with the sensor RüF. An switching valve RUV enables to route the heating circuit return flow through the solar warmed up storage tank.
KT-Elektronik SOL3-7 If the heating circuit pump UP is active, the heating circuit return flow is warmed up, so that less energy must be supplied by the primary energy generator. 6.10.2 Implementation The range of the function described in chapter Temperature difference controller (page 69) is not active after reset to factory default settings resp.
Installation and operating manual KT-Elektronik 7 Domestic water circuit functions 7.1 Domestic water heating in storage tank The domestic water circuit allows setting the desired temperature the water should be heated up to by means of auxiliary heating. Setting Parameter level / Value range Set-point domestic water 45 °C...
KT-Elektronik SOL3-7 8 System wide functions - all system variants 8.1 Automatic summer/winter switching Switching is done automatically on the last Sunday in March at 2:00 am and on the last Sunday in October at 3:00 am. Functions Configuration Summer/winter switching CO5 ->...
Installation and operating manual KT-Elektronik 8.3 Locking manual operating mode This function can be used to lock the manual operating mode in order to protect the heating system. When activated, the system is run in automatic mode when the rotary...
KT-Elektronik SOL3-7 8.6 Temperature difference controller To applicate a raise return flow temperature of a seperate heating circuit, to realize tank-to- tank transfer or to charge or discharge of heating energy there is designed one additional temperture diffrence controller inside.
Installation and operating manual KT-Elektronik 9 Malfunction A system malfunction is immediately shown on the display by a overlapping frame on system scheme. The error level including detailed messages is opened by pressing the rotary pushbutton. A larger number of error messages might eventually be retrieved by turning the rotary pushbutton.
KT-Elektronik SOL3-7 Flow sensor, solar circuit: If a primary flow sensor fails, the domestic water is not heated up any more. Storage sensor SF1/2: If one of these sensors fails, the buffer storage is not charged any more.
Installation and operating manual KT-Elektronik 9.5 SMS delivery in case of a system failure If a dial up modem is connected to the KOM232M (Mat-No. 11988) communication module (chapter 10.3), the controller is able to send error messages to a cell phone. An SMS is sent as soon as a failure is captured in the error status register.
KT-Elektronik SOL3-7 10 Communication The heat pump controller SOL3-7 can be connected to a building control system via an optional communication module. A suitable software allows to set up a complete building control system for process visualization and communication. The following communication variants are available: Operation with USB connection with communication module USB-L3 (6) •...
Installation and operating manual KT-Elektronik 10.1 Communication module KOM232PC The connector for the optional communication module (Mat-No. 11988) is located on the left side (front panel view) inside the controller housing (RJ45 connector). The operation of the controller in conjunction with the communication module KOM232PC requires the use of appropriate communication tools (software).
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KT-Elektronik SOL3-7 ATTENTION! When installing, the relevant standards and regulations related to lightning protection and over-voltage/voltage surge protection have to be attended to. Functions Configuration Modbus CO6 -> F01 – 1 Modbus with 16-bit addressing CO6 -> F02 – 1 Modem function CO6 ->...
Installation and operating manual KT-Elektronik 10.3 Communication module KOM232M The connector for the optional communication module KOM232M (Mat-No. 11989) is located on the left side (front panel view) inside the controller housing (RJ45 connector). The communication module KOM232M allows the connection of a dial up modem to the controller.
KT-Elektronik SOL3-7 Wiring diagram for communication module KOM232M 10.4 Data Modem DataMod11 The connector for the optional data modem DataMod11 (Mat-No. 11991) is located on the left side (front panel view) inside the controller housing (RJ45 connector). Settings and notes from chapter 10.3 remain valid.
Installation and operating manual KT-Elektronik 10.5 ModBus-MBus-Gateway The connector for the optional ModBus-MBus-Gateway (Mat-No. 11997) is located on the left side (front panel view) inside the controller housing (RJ45 connector). The operation of the controller in conjunction with the ModBus-MBus-Gateway requires a permanent bus connection (data cable).
KT-Elektronik SOL3-7 10.6 USB communication cable USB-L3 The connector for the USB communication line L3 USB (Material No.: 11982) is located on the left side (front panel view) inside the controller housing (RJ45 connector). The operation of the controller in conjunction with the USB communication cable USB-L3 requires the use of appropriate communication tools (software) and installing a device driver to provide a "COM port"...
ModBus-TCP-Gateway requires the use of appropriate communication tools (software). The Modbus-TCP-Gateway extends a SOL3-7 to an Ethernet (LAN) interface. All Modbus RTU commands the controller support are available via Modbus TCP. Wiring diagram for Modbus-TCP-Gateway 10.8...
KT-Elektronik SOL3-7 Modem time out (T) If connected to the BCS, but not addressing a Modbus data point, the controller closes the connection after the modem has timed out. If the error status register has not been read out during the connection to the BCS, the controller attempts to reconnect to the BCS after the programmed modem dialling pause (P) to repeat the procedure.
Installation and operating manual KT-Elektronik 10.10 55Viewer for visualization and remote maintenance. The software 55Viewer (Mat-No. 37160) is available to visualize and remote maintain the system. The software allows to display a graphical representation of the complete system installation with all sensor data and all switching states of the pump and valve outlets.
KT-Elektronik SOL3-7 10.11 Data Logging The data logging module DataMem (Mat-No. 37699) allows saving the following controller data in two minute intervals: Sensor readings Control signals [%] Switching states of the pump outlets Error status register and archive Access to controller settings The connector for the memory module is located on the left side (front panel view) inside the controller housing (RJ45 connector).
Installation and operating manual KT-Elektronik 11 Mounting The device consists of a controller housing containing the electronics assembly and a mounting panel with the terminal strips. It is suited for control panel, wall and DIN rail mounting (Figure 13). Control panel mounting 1.Loose both screws (1).
Installation and operating manual KT-Elektronik 12 Electrical connection ATTENTION! VDE and utility specifications and regulations have to be attended to when wiring and connecting the controller. Therefore, this task has to be performed by qualified personnel only! 12.1 Notes for wire installation 230 V-supply lines and signal lines must be routed in separate cables! To increase...
KT-Elektronik SOL3-7 12.3.1 Connecting the sensors Wires with a minimum diameter of 2 by 0.5 mm² may be connected to the terminal strips on the mounting panel. Connecting the actuators 3-point-/2-point duty outputs: moisture proof cables with a minimum diameter of 1.5 mm²...
Installation and operating manual KT-Elektronik 12.3.4 Wiring diagram Note: The diagram shown on the back of the controller housing applies to most of the possible system variants. Certain system variant configuration require a different usage of single relay outputs. The following table shows the assignment of functions to terminals for all system variants.
KT-Elektronik SOL3-7 12.3.5 Terminal assignment for Outputs System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 I - I.0.0 I - I.0. I I - I. I.0 I - I. I. I I - I.2.0 I - I.2.
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Installation and operating manual KT-Elektronik System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 I o 2. I. I I o 2.2.0 I o 2.2. I I o 2.30 I o 3.0.0 I o 3.0. I I o 3.
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KT-Elektronik SOL3-7 System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 2 o I.2.0 2 o I.2. I 2 o I.3.0 2 o 2.0.0 2 o 2.0. I 2 o 2. I.0 2 o 2.2.0 2 o 2.3.0...
Installation and operating manual KT-Elektronik System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 3 o 2. I.0 3 o 2.2.0 3 o 2.3.0 3 o 3.0.0 3 o 3.0. I 3 o 3. I.0 3 o 3.2.0...
KT-Elektronik SOL3-7 13 Appendix 13.1 Function block lists CO1: Heating circuit Rk1 Function Function block parameter description/value range (factory default setting) 01 Room sensor RF CO1 -> F01 - 1: Temperature display active 02 Outdoor sensor CO1 -> F02 - 1: active weather-compensated control 05 Underfloor CO1 ->...
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Installation and operating manual KT-Elektronik CO3: Solar circuit Function Function block parameter description/value range (factory default setting) Forced pump CO3 F01 = 1 - Regular forced pump operation active operation see section 5.10 Collector CO3 F02 = 1 - Antifreeze active antifreeze see section 5.11...
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KT-Elektronik SOL3-7 CO4: Domestic water circuit Function Function block parameter description/value range (factory default setting) Thermal CO4 -> F14 - 1 only with CO4 -> F01 - 1 disinfection Function block parameters: Day of week / 1, 2, …, 7, 1–7 (3)
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Installation and operating manual KT-Elektronik Function Function block parameter description/value range (factory default setting) 20 Sensor calibration 1 CO5 -> F20 - 1: Setting all sensor calibration values CO5 -> F20 - 0: Deleting sensor calibration values 21 Locking manual operating 0 CO5 ->...
KT-Elektronik SOL3-7 13.2 Parameter list PA1: Parameter level Rk1 factory No Symbol Description Range default Gradient, flow 0,2 to 3,2 PA1.01 with CO1 -> F05 - 1 : 0,2 to 1,0 Level, flow –30 to 30 °C 0 °C PA1.02 4-point characteristic characteristic PA1.03...
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Installation and operating manual KT-Elektronik PA3: Solar circuit parameter level factory No Symbol Description Range default Minimum run time 0 to 1800 s PA3.01 Minimum idle time 0 to 1800 s 180s PA3.02 maximum storage tank temperature 1 50 to 160 °C 60°C...
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KT-Elektronik SOL3-7 PA4: Storage temperature, auxiliary heating factory No Symbol Description Range default Set-point domestic water 5 to 90 °C 45 °C PA4.01 Daytime Operation Set-point domestic water 5 to 90 °C 10 °C PA4.02 Night-time operation Differential gap 0 to 30 °C 5 °C...
Installation and operating manual KT-Elektronik 13.3 Resistance values Resistance values with Pt 1000-measuring element Outdoor temperature sensor type 5227-2 for flow, return flow and storage temperature Typ2 5277-2 (immersion sleeve required) and 5267-2 (contact sensor). Room temperature sensor type 5257-1, type 5257-5 (room control unit).
KT-Elektronik SOL3-7 13.4 Technical specifications Inputs 9 Inputs for temperature sensor Pt 1000 or BE 1 binary input for flow volume signal 1 analogue input 0 to 10 V (alternatively analogue output) Outputs 7 isolated/potential-free relay outputs with varistor (snubber),...
Installation and operating manual KT-Elektronik 13.5 Accessories Part no. Name Description 37388 SOL3-7 SOL3-7 – Solar thermal controller USB Communication cableto connect the SOL3 and 11982 USB-L3 WPR3 to USB (PC) 11988 KOM232PC Adapter to connect the SOL3 to the RS232 plug (PC)
Installation and operating manual KT-Elektronik 13.8 Abbreviations Outdoor sensor Sys. System Outdoor temperature Binary output Binary input Configuration level Installation and operating manual Function block Heating circuit Building master control system / station Terminal Cold water Parameter level Room sensor Control circuit RüF...
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