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KT-Elektronik SOL3-7 Installation And Operating Manual

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Solar controller
SOL3-7
Installation and operating
manual
Firmware version 1.07
April 2011

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Summary of Contents for KT-Elektronik SOL3-7

  • Page 1 Solar controller SOL3-7 Installation and operating manual Firmware version 1.07 April 2011...
  • Page 2 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.

  • Page 3: Table Of Contents

    KT-Elektronik SOL3-7 Table of contents 1 Operation ........................1.1 Controls ........................1.1.1 Rotary pushbutton ................... 1.1.2 Rotary switch ....................1.2 Operating modes for heating circuit ................ 1.3 Display ........................1.4 Retrieving data – Information level ............... 1.5 Setting the system time ..................
  • Page 4 Installation and operating manual KT-Elektronik 5.12 Two collector arrays ................... 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 ..................
  • Page 5 KT-Elektronik SOL3-7 9.3 Temperature monitoring ..................9.4 Error status register ....................9.5 SMS delivery in case of a system failure .............. 10 Communication ......................10.1 Communication module KOM232PC ..............10.2 Communication module iCon485 ..............10.3 Communication module KOM232M ..............10.4 Data Modem DataMod11 ..................

  • Page 6: Operation

    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).

  • Page 7: Rotary Switch

    KT-Elektronik SOL3-7 1.1.2 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...

  • Page 8: Operating Modes For Heating Circuit

    Installation and operating manual KT-Elektronik 1.2 Operating modes for heating circuit The operation of the heating circuit can be affected depending on time and day of week. Thereto different set-points for night and day exist. A usage schedule determines when to operate in day-time OM or night-time OM.

  • Page 9: Display

    KT-Elektronik SOL3-7 1.3 Display During operation, the display shows the current time as well as information about the status of the controller. The usage periods are represented by black squares below the row of numbers. Symbols mark the operational status of the controller.
  • Page 10 Installation and operating manual KT-Elektronik The following applies to the icon of the collector pump(s): Description Icon Icon off Pump off Condition to turn on the pump is met but the Icon flashes briefly pump is still off because of the minimum idle time.

  • Page 11: Retrieving Data - Information Level

    KT-Elektronik SOL3-7 1.4 Retrieving data – Information level In the standard rotary switch position „Information level“ one can retrieve informations about time, date, vacation-times and holidays as well as the temperature set-points for the connected sensors and their current temperature.

  • Page 12: Setting The System Time

    Installation and operating manual KT-Elektronik 1.5 Setting the system time System time and date have to be set during first start-up and after each loss of power with a duration of more than 24 hours. This is indicated by a blinking time display.

  • Page 13: Adjust Usage Schedule Settings

    KT-Elektronik SOL3-7 1.6 Adjust usage schedule settings There are three separate usage schedules for • Heating circuit • Auxiliary heating • Domestic water circulation The following applies to each time program: 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.
  • Page 14 Installation and operating manual KT-Elektronik Procedure: Turn rotary switch to position “Usage schedules” Select circuit for which the time ranges shall be Heating circuit set. (only available circuits of the selected system variant are offered) Auxiliary heating Domestic water Confirm selected circuit.

  • Page 15: Setting The Party Mode (Heating Circuit/Auxiliary Heating)

    KT-Elektronik SOL3-7 1.7 Setting the party mode (heating circuit/auxiliary heating) The party mode overrides the nominal operation of the controller by starting a new or prolonging a programmed daytime mode time range for the duration of the time set for the party mode.

  • Page 16: Access Advanced Information Level

    Installation and operating manual KT-Elektronik 1.8 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 •Volume flow rate...

  • Page 17: Setting Holidays

    KT-Elektronik SOL3-7 1.8.1 Setting holidays On public holidays the time ranges entered for Sunday apply. The number of programmable holidays is limited to 20. Setting Level / Range Holidays – Advanced information level / 01.01 to 31.12 Procedure: In the advanced information level select the menu item "holidays".
  • Page 18 Installation and operating manual KT-Elektronik Procedure: In the advanced information level select the menu item "vacations". Display: Confirm selection "vacations". Display: START, – –.– – Eventually select item – – – –. Enter edit mode for vacation time. flashes Change beginning of vacation.

  • Page 19: Operation Level Stucture

    KT-Elektronik SOL3-7 1.9 Operation level stucture PA1/CO1: Heating circuit Rk1 PA3/CO3: Solar circuit PA4/CO4: Auxiliary heating/domestic water heating PA5/CO5: System wide PA6/CO6: Communication Anl: system variant ID Fig. 2: Level structure EB_37387_SOL3-7_EN003...

  • Page 20: Commissioning

    Installation and operating manual KT-Elektronik 2 Commissioning The configuration procedures and parametrization described in this chapter can only be performed by entering a valid controller access code. The access code provided by the factory for first time use can be found in the appendix.

  • Page 21: Activate And Deactivate Functions

    KT-Elektronik SOL3-7 2.2 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.
  • Page 22 Installation and operating manual KT-Elektronik Deactivate function block. Display: F__ - 0 Confirm setting. As long as the function block is not closed, other function block parameters can be set. Procedure: Edit and confirm settings. Eventually, the next function block parameter is displayed.

  • Page 23: Edit Settings

    KT-Elektronik SOL3-7 2.3 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: PA1: Heating circuit...

  • Page 24: Sensor Calibration

    Installation and operating manual KT-Elektronik 2.4 Sensor calibration The controller is designed for connection of Pt1000-sensors. The sensor values of resistance are listed on page 103. If the temperature values displayed by the controller do not match the real temperatures, the measured values of the connected sensors can be adjusted.

  • Page 25: Reset To Factory Default Settings

    KT-Elektronik SOL3-7 2.5 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.

  • Page 26: Manual Operating Mode

    Installation and operating manual KT-Elektronik 3 Manual operating mode The manual operating mode allows the configuration of all outputs (chapter 12). Manual operating mode is set with the turn switch for the requested circuit: Procedure: Move rotary switch to position “Manual operating mode”.

  • Page 27: System Variants

    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, •...
  • Page 28 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_37387_SOL3-7_EN003...
  • Page 29 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_37387_SOL3-7_EN003...
  • Page 30 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_37387_SOL3-7_EN003...
  • Page 31 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_37387_SOL3-7_EN003...
  • Page 32 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_37387_SOL3-7_EN003...
  • Page 33 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_37387_SOL3-7_EN003...
  • Page 34 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_37387_SOL3-7_EN003...
  • Page 35 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_37387_SOL3-7_EN003...

  • Page 36: Extending The Basic System Variant Representations

    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...
  • Page 37 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_37387_SOL3-7_EN003...
  • Page 38 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_37387_SOL3-7_EN003...

  • Page 39: Solar Circuit Functions

    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.
  • Page 40 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.

  • Page 41: Storage

    Max E PA3 (turn-on condition) 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.

  • Page 42: Swimming Pool

    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.

  • Page 43: Collector Return Flow Sensor, Collector Flow Sensor

    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.

  • Page 44: Measurement Of Solar Power And Solar Energy

    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.
  • Page 45 KT-Elektronik SOL3-7 • 1 watt hour (Wh) = 3600 watt seconds (Ws) • 1 watt hour (Wh) = 3600 joules (J) • 1 kilowatt hour (kWh) = 1000 watt hours (Wh) Function Description Energy measurement CO3 -> F05 – 1 – Heat meter active Heat capacity 25°C...

  • Page 46: Rotation Speed Control

    Installation and operating manual KT-Elektronik 5.6 Rotation speed control It might make sense to run the pump with a lower flow rate at low solar radiation. By doing so, the following can be achieved: –a higher temperature is reached at the collector. This impairs the efficiency of the collector, but allows to heat up a small amount of water in the storage.

  • Page 47: Collector Overheating Protection

    KT-Elektronik SOL3-7 If the calculated value is above the programmed maximum rotation speed value, a signal for 100% is sent (corresponding to 10 V output). If the calculated value is below the programmed minimum rotation speed a signal for 0% (corresponding to 0 V output) is sent.

  • Page 48: Collector Minimum Temperature

    Installation and operating manual KT-Elektronik 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.

  • Page 49: Collector Antifreeze

    KT-Elektronik SOL3-7 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.

  • Page 50: Two Collector Arrays

    Installation and operating manual KT-Elektronik 5.12 Two collector arrays Depending on the structural conditions, it may be necessary to install the two collectors each pointing in a different direction. The controller can be used in systems operating in parallel mode with two collector arrays with one array having priority over the other. This is basically predetermined by configuring the system to operate with two collector pumps or with one pump and a switching valve.

  • Page 51: Auxiliary Heating With Secondary Heat Generator

    KT-Elektronik SOL3-7 An optional collector flow temperature sensor CVF located in the collector circuit may be used to reduce the turn-on delay and the post-run time in order to increase the efficiency of the solar system. The exchanger pump CTP is turned on once the collector flow sensor has reached the turn-on condition (temperature difference between collector flow and storage tank) and one of the collector pumps CP1/CP2 is running.

  • Page 52: Heating Circuit Functions

    Installation and operating manual KT-Elektronik 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.
  • Page 53 KT-Elektronik SOL3-7 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- •...

  • Page 54: 4-Point Characteristic

    Installation and operating manual KT-Elektronik 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...
  • Page 55 KT-Elektronik SOL3-7 Setting Parameter level / Value range Outdoor temperature Point 1 (P1) –15 °C PA1 / -40 to 50 °C Point 2 (P2) –5 °C Point 3 (P3) °C Point 4 (P4) 15 °C Flow temperature Point 1 (P1) °C...

  • Page 56: 3-Point Control

    Installation and operating manual KT-Elektronik 6.3 3-point control The flow temperature can be regulated by means of a PI algorithm. The valve responds to impulses sent out by the controller in case of deviations. In particular, the length of the first impulse depends on the size of the deviation and the boost KP (the impulse length grows with increasing KP).

  • Page 57: Regulating By Fixed Value

    KT-Elektronik SOL3-7 6.5 Regulating by fixed value The flow temperature can be controlled via a fixed set-point within the usage schedules. Outside scheduled time ranges, the reduced flow temperature is controlled. For this purpose, the set-point for the daytime nominal flow temperature and for the night-time reduced flow temperature have to be set.
  • Page 58 Installation and operating manual KT-Elektronik The process can be monitored when displaying the flow temperature ( ) of the corresponding heating circuit at information level: Temperature raise phase Temperature holding phase Temperature decrease phase If the additional symbol displayed in the flow temperature screen disappears after the last phase, the drying process was completed successfully.

  • Page 59: Deactivation Depending On The Outdoor Temperature

    KT-Elektronik SOL3-7 6.7 Deactivation depending on the outdoor temperature 6.7.1 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.

  • Page 60: Summer Operating Mode (Om)

    Installation and operating manual KT-Elektronik 6.7.4 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.

  • Page 61: Remote Operation

    KT-Elektronik SOL3-7 6.9 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...

  • Page 62: Raise Return Flow Of External Heating System

    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.

  • Page 63: Implementation

    KT-Elektronik SOL3-7 6.11.2 Implementation The range of the function described in chapter Temperature difference controller (page 67) is not active after reset to factory default settings resp. Setting the system variant ID. The return flow temperature sensor RüF is realised with the terminal number 2 which was shown for heating circuit flow temperature sensor, because without heating circuit the heating circuit flow temperature sensor has no function.

  • Page 64: Domestic Water Circuit Functions

    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...

  • Page 65: System Wide Functions - All System Variants

    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 ->...

  • Page 66: Locking Manual Operating Mode

    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...

  • Page 67: Temperature Difference Controller

    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.

  • Page 68: Malfunction

    Installation and operating manual KT-Elektronik 9 Malfunction A system malfunction is indicated by a flashing icon in the display. An error message is immediately displayed. The error level is opened by pressing the rotary pushbutton. A larger number of error messages might eventually be retrieved by turning the rotary pushbutton.

  • Page 69: Temperature Monitoring

    KT-Elektronik SOL3-7 9.3 Temperature monitoring If the temperature in one of the control circuits deviates more than 50 K from normal for a period of 30 minutes, the error message "Err 6" is generated (temperature monitoring alarm). Functions Configuration Temperature monitoring CO5 ->...

  • Page 70: Sms Delivery In Case Of A System Failure

    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 9.1), 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.

  • Page 71: Communication

    KT-Elektronik SOL3-7 10 Communication The heat pump controller SOL3 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: –...

  • Page 72: Communication Module Kom232Pc

    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).
  • Page 73 KT-Elektronik SOL3-7 As long as valid Modbus queries are captured, the controller resets the time monitoring; but after a lapse of 30 minutes all collective level bits are reinitialized to "autonomous". ATTENTION! When installing, the relevant standards and regulations related to lightning protection and over-voltage/voltage surge protection have to be attended to.

  • Page 74: Communication Module Kom232M

    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.

  • Page 75: Data Modem Datamod11

    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.

  • Page 76: Modbus-Mbus-Gateway

    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).

  • Page 77: Memory Module

    KT-Elektronik SOL3-7 A dialling pause (approx 3 to 5 minutes) should be kept within two BCS/SMS provider calls in order not to permanently stress the telecommunication network. The modem dialling pause is programmed as period between two dial attempts. 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.

  • Page 78: 55Viewer For Visualization And Remote Maintenance

    Installation and operating manual KT-Elektronik 10.8 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.

  • Page 79: Data Logging

    KT-Elektronik SOL3-7 10.9 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).

  • Page 80: Mounting

    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).
  • Page 81 KT-Elektronik SOL3-7 Figure 12 - Mounting EB_37387_SOL3-7_EN003...

  • Page 82: Electrical Connection

    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...

  • Page 83: Connecting The Sensors

    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...

  • Page 84: Wiring Diagram

    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.

  • Page 85: Terminal Assignment For Outputs

    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.
  • Page 86 Installation and operating manual KT-Elektronik System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 I o 2.0.0 I o 2.0. I I o 2. I.0 I o 2. I. I I o 2.2.0 I o 2.2.
  • Page 87 KT-Elektronik SOL3-7 System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 2 - 3.2.0 2 - 3.2. I 2 – 3.3.0 2 o I.0.0 2 o I.0. I 2 o I. I.0 2 o I. I. I 2 o I.2.0...

  • Page 88: Terminal Assignment For Inputs

    Installation and operating manual KT-Elektronik System variant T. 21 T. 23 T. 24 T. 26 T. 27 T. 29 T. 30 3 - 2.2. I 3 – 2.3.0 3 o I.0.0 3 o I.0. I 3 o I. I.0 3 o I. I. I 3 o I.2.0...

  • Page 89: Appendix

    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 ->...
  • Page 90 Installation and operating manual KT-Elektronik Function Function block parameter description/value range (factory default setting) 13 Limiting deviation CO1 -> F13 - 1 only with CO1 -> F12 - 1 for OPEN signal Function block parameters: maximum deviation / 2 to 10 °C (2 °C)
  • Page 91 KT-Elektronik SOL3-7 CO3 F10 = 1 Temperatur difference controller active Temperature dif- Function block parameter ference controller Temperatur difference set point / -30 bis 160°C Reference input / Terminal number 1...9 Controlled input / Terminal number 1...9 F Function block number, FS Factory default setting...

  • Page 92: Modem Configuration

    Installation and operating manual KT-Elektronik Function Function block parameter description/value range (factory default setting) 08 Summertime-/ Wintertime- switching 09 Antifreeze program II CO5 -> F09 - 0: Antifreeze program I (reduced anti- freezing) Function block parameter: Anti-freezing threshold / –15 to 3 °C (3 °C) CO5 ->...

  • Page 93: Parameter List

    KT-Elektronik SOL3-7 13.2 Parameter list PA1: Parameter level Rk1 Symbol/Icon Parameter name Value range (factory default) Gradient, flow 0.2 to 3.2 (0.4) (with CO1 -> F05 - 1, valid: 0.2 to 1.0 (1.0)) Level (parallel shift) –30 to 30 °C (0 °C) Minimum flow temperature 5 to 130 °C (20 °C)
  • Page 94 Installation and operating manual KT-Elektronik Symbol/Icon Parameter name Value range (factory default) 4-point characteristic Press Rotary pushbutton to be able to set - Outdoor temperature, - Flow temperature, - reduced flow temperature and - Return flow temperature 4-point characteristic Point 1: Outdoor temperature...
  • Page 95 KT-Elektronik SOL3-7 Symbol/Icon Parameter name Value range (factory default) OT deactivation temperature for daytime operating mode 0 to 50 °C (22 °C) OT deactivation temperature for night-time operating mode –20 to 50 °C (15 °C) OT activation temperature for daytime operating mode –20 to 5 °C (-15 °C)
  • Page 96 Installation and operating manual KT-Elektronik Symbol/Icon Parameter name Value range (factory default) Set-point room temperature day-time OM 0 to 40 °C (20 °C) Set-point room temperature night-time OM 0 to 40 °C (15 °C) EB_37387_SOL3-7_EN003...
  • Page 97 KT-Elektronik SOL3-7 PA3: Solar circuit parameter level Symbol/Icon Parameter name Value range (factory default) Minimum running time for collector pump 0 to 1800 s (60s) Minimum idle time for collector pump 0 to 1800 s (1800s) Maximum storage tank temperature - Turn-off condition 20 to 160 °C (60 °C)
  • Page 98 Installation and operating manual KT-Elektronik Symbol/Icon Parameter name Value range (factory default) Charging time for low priority storage tank only for priority type 3 0 to 120 min (150 min) Minimum storage temperature for storage tank charging only for priority type 2 5 to 90 °C (30 °C)
  • Page 99 KT-Elektronik SOL3-7 Symbol/Icon Parameter name Value range (factory default) Minimum collector temperature (turn-on condition) –20 to 50 °C (35 °C) Minimum running time for array before switching 0 to 1800 s (60s) Turn-on delay for collector exchanger pump 0 to 250 s (120 s)
  • Page 100 Installation and operating manual KT-Elektronik PA4: Storage temperature, auxiliary heating Symbol/Icon Parameter name Value range (factory default) Set-point storage tank temperature, day- time OM 5 to 90 °C (45 °C) Set-point storage tank temperature, night- time OM 5 to 90 °C (10 °C)
  • Page 101 KT-Elektronik SOL3-7 PA5: system wide functions (all system variants) Symbol/Icon Parameter name Value range Holidays 01.01 to 31.12 (chapter 1.8.1) Vacation times 01.01 to 31.12 (chapter 1.8.2) PA6: Modbus parameter Symbol/Icon Parameter name Value range Modbus client address 1 to 247 (255) (with CO6 ->...
  • Page 102 Installation and operating manual KT-Elektronik Symbol/Icon Parameter name Value range Modem time out (T) 1 to 255 min (5 min) Number of BCS dial attempts (C) 0 to 255 (15) Phone number of the BCS (TELnr) max 22 digits; 1, 2, 3, …, 9, 0;...

  • Page 103: Resistance Values

    KT-Elektronik SOL3-7 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).

  • Page 104: Technical Specifications

    Installation and operating manual KT-Elektronik 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...

  • Page 105: Accessories

    SOL3-7 13.5 Accessories Part no. Name Description 37387 SOL3-7 SOL3-7 – Solar thermal controller 11988 KOM232PC Adapter to connect the SOL3 to the RS232 plug (PC) Adapter to connect the modem to the SOL3 11989 KOM232M (analogue / GSM / ISDN)

  • Page 106: Function Block Settings In Configuration Levels

    Installation and operating manual KT-Elektronik 13.6 Function block settings in configuration levels EB_37387_SOL3-7_EN003...

  • Page 107: Abbreviations

    KT-Elektronik SOL3-7 13.7 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...

  • Page 108: Access Codes

    Installation and operating manual KT-Elektronik 13.8 Access codes 1732 General parameter setting and configuration (factory setting) 1999 Locking / unlocking the extended information level 1995 Changing the access code for parameter setting and configuration 1991 Load default factory settings 0025...

  • Page 109: Notes

    KT-Elektronik SOL3-7 13.9 Notes EB_37387_SOL3-7_EN003...
  • Page 110 Installation and operating manual KT-Elektronik EB_37387_SOL3-7_EN003...
  • Page 111 KT-Elektronik SOL3-7 EB_37387_SOL3-7_EN003...
  • Page 112 KT-Elektronik GmbH Berlinickestrasse 11 12165 Berlin Telephone: (030) 79 08 05-0 Telefax: (030) 79 08 05-20 e-mail: info@kt-elektronik.de EB_37387_SOL3-7_EN003 Internet: http://www.kt-elektronik.de...

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