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Dimplex SOLCU3 Installation And Operating Instructions Manual

Temperature difference controller 6 inputs, 3 outputs, integrated data logger for sd card, solar controller
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SOLARTHERMIE - SOLAR THERMAL - SOLAR TÉRMICO - SOLAIRE THERMIQUE - SOLARE TERMICO
Installation and operating instructions
Temperature difference controller
6 inputs, 3 outputs,
integrated data logger for SD card
These operating instructions are part of the product.
Read these operating instructions carefully before use,
keep them over the entire lifetime of the product,
and pass them on to any future owner or user of this product.
EN
730.137 | Z01 |
Subject to change due to technical improvements!
Solar Controller SOLCU3
| ST0043_A - 09/08

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  • Page 1 SOLARTHERMIE - SOLAR THERMAL - SOLAR TÉRMICO - SOLAIRE THERMIQUE - SOLARE TERMICO Solar Controller SOLCU3 Installation and operating instructions Temperature difference controller 6 inputs, 3 outputs, integrated data logger for SD card These operating instructions are part of the product. Read these operating instructions carefully before use, ...

  • Page 2: Table Of Contents

    Contents Safety ..................4 Proper usage ................4 Dangers during assembly and commissioning ......4 Detecting faults ............... 5 Hot water temperature ............5 Disposal ................... 5 Exclusion of liability ..............5 Case overview ..............6 About this manual ...............7 Applicability ................7 Users ..................7 Description of symbols ............
  • Page 3 Automatic mode ..............85 Status display ................. 86 Temperature sensor min/max display ........86 Operating hours display for pumps and switching valves ..86 Data logger.................87 Handling the SD card ............. 87 Display screen ................ 87 Formating ................88 Data evaluation ..............89 10 Service ................90 11 Fault finding ...............90 11.1 Causes of problems ...............

  • Page 4: Safety

    Safety Proper usage The temperature difference controller (hereinafter referred to as controller) is an independently installed electronic temperature controller for on-surface installation, and may only be used for controlling solar thermal systems within the permissible ambient conditions (see chapter 15 "Technical data"). The controller must not be operated in the following environments: •...

  • Page 5: Detecting Faults

    Detecting faults Check the display regularly.  In case of faults, isolate the cause (see chapter 11.1 "Causes of problems").  As soon as it becomes evident that safe operation is no longer guaranteed (e.g. visible damage),  remove the device from the mains supply immediately. Have trained professional personnel remedy the fault.

  • Page 6: Case Overview

    Case overview Display Display for controller operation and system settings Operating switch The following modes of operation Operating buttons can be selected: Arrow up - Manual for scrolling up through the menus for commissioning and testing for function SET button confirmation or activation of a value - Automatic for automatic operation ESC button...

  • Page 7: About This Manual

    About this manual Applicability This manual describes the installation, commissioning, operation, maintenance and dismantling of the temperature differential controller for solar thermal energy systems. When installing the remaining compo- nents, e.g. solar collectors, pump assemblies, storage units, pumps and switching valves, be sure to observe the appropriate installation instructions provided by each manufacturer.

  • Page 8: Installation

    3.3.4 Other symbols and markings Symbol Meaning Condition for action ✓ Call to action  Result of action  • List Emphasis on Emphasis on issue at hand issue at hand Press „Arrow up/down“ for scrolling. : Press „Arrow down“ for scrolling through the : menu or to adjust a value.

  • Page 9: Assembly

    Assembly WARNING Risk of electrical shock and fire if mounted in a damp environ- ment! Only mount the controller in an area where the ingress protection is  sufficient (see chapter 15 "Technical data"). 4.2.1 Mounting the controller CAUTION Risk of injury and damage to the case when drilling! Do not use the case as a drilling template.

  • Page 10: Electrical Connection

    Electrical connection DANGER Risk of death by electrocution! Remove the controller from the power supply before opening the  case. Observe all applicable legal guidelines and regulations of the local  electricity supplier. NOTE The device is to be connected to the mains by means of a plug with grounding contact, or in the case of a fixed electrical installation, via a disconnection device for complete disconnection in accordance with the installation guidelines.

  • Page 11: Dismantling

    4.3.2 Connecting the cables If a protective conductor is provided or required for pumps/valves,  connect it to the corresponding terminals of the controller. When connecting the protective conductor, observe the following points: Make sure that the protective conductor is also connected to the controller's mains supply side.

  • Page 12: Terminal Diagram

    Terminal diagram 4.5.1 Power connection • Please refer to the type plate on the case to determine the type of power supply required • The protective conductor must be connected • Cables conforming to at least type H05 VV-... (NYM…) must be used G1: grid D1: wire bridge n.c n.c.
  • Page 13 Inputs 1 - 5: temperature recording Inputs 1...5 ϑ T1...T5 Temperature sensor Pt 1000 (polarity irrelevant) Input 6: recording temperatures and pulse values Temperature recording ϑ Pt1000 temperature sensor (polarity irrelevant) Recording pulse values Recording pulse values via reed relay via open collector Standard: Special case:...
  • Page 14 4.5.3 Connection of outputs R1, R2 and R3 Outputs R1 and R2: • Semiconductor relays (TRIAC), also suitable for RPM control; max. switching current: see type plate CAUTION Avoiding damage and malfunctions When connecting an external relay or contactor, or when connect-  ing a pump which has its own electronic RPM control, the controller output's RPM control must be deactivated (see chapter 7.4.3 "Setting the RPM control parameters").
  • Page 15 • Potential-free output via electromechanical relay; wire bridge must be removed! DANGER Risk of death by electrocution! In the event of use as a potential-free output, it must be ensured that  the connections cannot come into contact with the mains voltage. R1: output 1 R: output  R3: output 3 n.c n.c.

  • Page 16: Commissioning

    Commissioning Make sure that the installation is finished completely and correctly,  and that the switch on the controller is set to "OFF". The display for setting the language appears.  Setting the language   "Deutsch" flashes in the display. ✓...

  • Page 17: Setting The System Group

    Setting the system group   NOTE For an overview of systems, see chapter 7. "Systems". Display: .1 Display: .1 The first system group (1 storage tank system) appears in the ✓ [Storage tank] [Storage tank] display. : select a system group. ...

  • Page 18: Modes Of Operation

    Modes of operation "OFF" mode   In order to switch off the outputs, slide the operating switch down.  A new window appears in the display, which shows "OFF", as  well as the controller software version number and the number of the chosen system.

  • Page 19: Settings

    Settings Menu overview, see following double page Time/date   The time and date can be displayed and adjusted via the "Time/Date" menu item. The automatic summer time change-over can still be acti- vated or deactivated. 7.1.1 Setting the time and date Display: 1 Display: 1 SET: press button for approx.
  • Page 20 Menu overview 2 sec 2 sec Status display Set season Time Systems The menu item “Set 2 storage tanks 1 storage tank 3 storage tanks Swimming pool Storage tank swim- season” is only systems systems systems systems ming pool systems displayed if a seasonal system System 1...
  • Page 21 Factory Parameters Storage priority Language Functions settings Max. temperature 2 storage tanks swim- Seasonal systems Circulation storage tank 1 ming pool systems Max. temperature System 33 System 35 Back-up heating storage tank 2 Max. temperature System 34 System 36 Solid fuel boiler storage tank 3 Max.

  • Page 22: Systems

    Systems The desired solar energy system can be chosen using the "Systems" submenu. There are a total of 40 different systems to choose from (subdivided into 7 system groups). System group 40 systems Chapter Systems with one System 1: 1 collector array – 1 storage tank 7..1 storage tank System : 1 collector array –...
  • Page 23 System group 40 systems Chapter Systems with three System 1: 1 collector array – 3 storage tanks – intelligent pump 7..3 control storage tanks System : 1 collector array – 3 storage tanks – intelligent valve control Systems with a System 3: 1 collector array – 1 swimming pool 7..4 swimming pool System 4: 1 collector array –...
  • Page 24 NOTE Upon selection of a new system, the functions, storage tank priority, and parameters are automatically returned to their factory settings. Check the settings again!    Selecting a system SET: press button for approx.  sec.  : select the menu item "Systems". ...
  • Page 25   7.2.1 Systems with one storage tank System 1: 1 collector array – 1 storage tank Description of the solar function: the solar circuit pump R1 is switched on as soon as the switch-on temperature difference between the col- Display: .1 Display: .1 lector array A1 (T1) and the storage tank B1 (T) is reached.
  • Page 26 System 2: 1 collector array – 1 storage tank –   heating return increase Description of the solar function: the solar circuit pump R1 is switched on as soon as the switch-on temperature difference between the col- Display: .1. Display: .1. lector array A1 (T1) and the storage tank B1 (T) is reached. When the switch-off temperature difference between the collector array A1 (T1) and the storage tank B1 (T) or a safety limit is reached, the solar circuit pump R1 is switched off again.
  • Page 27   System 3: 1 collector array – 1 storage tank with external heat exchanger Description of the solar function: the solar circuit pump R is switched on as soon as the switch-on temperature difference between the col- Display: .1.3 Display: .1.3 lector array A1 (T1) and the storage tank B1 (T) is reached. When the switch-off temperature difference or a safety limit is reached, the solar circuit pump R switches off.
  • Page 28 System 4: 1 collector array – 1 storage tank with exter-   nal heat exchanger – heating return increase Description of the solar function: the solar circuit pump R is switched on as soon as the switch-on temperature difference between the col- Display: .1.4 Display: .1.4 lector array A1 (T1) and the storage tank B1 (T) is reached.
  • Page 29   System 5: 1 collector array – 1 storage tank with zone loading Description of the solar function: the solar circuit pump R1 is switched on as soon as the switch-on temperature difference between the col- Display: .1.5 Display: .1.5 lector array A1 (T1) and the storage tank B1 (T) is reached. When the switch-off temperature difference between the collector array A1 (T1) and the storage tank B1 (T) or a safety limit is reached, the solar circuit pump R1 is switched off again.
  • Page 30 System 6: 1 collector array – 1 storage tank with zone   loading – heating return increase Description of the solar function: the solar circuit pump R1 is switched on as soon as the switch-on temperature difference between the col- Display: .1.6 Display: .1.6 lector array A1 (T1) and the storage tank B1 (T) is reached.
  • Page 31   System 7: 1 collector array – 1 storage tank with zone loading and external heat exchanger Description of the solar function: the solar circuit pump R is switched on as soon as the switch-on temperature difference between the col- lector array A1 (T1) and the storage tank B1 (T) is reached. When the switch-off temperature difference or a safety limit is reached, the solar circuit pump R switches off.
  • Page 32 System 8: 2 collector arrays (east/west roof) –   1 storage tank Description of the solar function: when the switch-on temperature difference between the storage tank B1 (T3) and one or the other of the Display: .1.8 Display: .1.8 collector arrays A1, A (T1, T) is reached, then either solar circuit pump R1 for collector array A1 (T1), or solar circuit pump R for collector array A (T) is switched on, depending on where the temperature difference...
  • Page 33   System 9: 2 collector arrays (east/west roof) – 1 storage tank – heating return increase Description of the solar function: when the switch-on temperature difference between the storage tank B1 (T3) and one or the other of the Display: .1.9 Display: .1.9 collector arrays A1, A (T1, T) is reached, then either solar circuit pump...
  • Page 34 System 10: 2 collector arrays (east/west roof) –   1 storage tank with external heat exchanger Description of the solar function: when the switch-on temperature difference between the storage tank B1 (T3) and one or the other of the Display: .1.10 Display: .1.10 collector arrays A1, A (T1, T) is reached, then either solar circuit pump...
  • Page 35   System 11: 2 collector arrays (east/west roof) – 1 storage tank with zone loading Description of the solar function: when the switch-on temperature difference between the storage tank B1 (T3) and one or the other of the Display: .1.11 Display: .1.11 collector arrays A1, A (T1, T) is reached, then either solar circuit pump R1 for collector array A1 (T1), or solar circuit pump R for collector array...
  • Page 36 7.2.2 System with two storage tanks   System 12: 1 collector array – 2 storage tanks – intelligent pump control Description of the solar function: when the switch-on temperature Display: . Display: . difference between the collector array A1 (T1) and one of the two stor- [Storage tank] [Storage tank] age tanks B1, B (T, T3) is reached, the appropriate solar circuit pump...
  • Page 37   System 13: 1 collector array – 2 storage tanks – heating return increase – intelligent pump control Description of the solar function: when the switch-on temperature difference between the collector array A1 (T1) and one of the two stor- Display: .. Display: .. age tanks B1, B (T, T3) is reached, the appropriate solar circuit pump...
  • Page 38 System 14: 1 collector array – 2 storage tanks –   intelligent valve control Description of the solar function: when the switch-on temperature dif- ference between the collector array A1 (T1) and one of the two storage tanks B1, B (T, T3) is exceeded, the solar circuit pump R1 is switched Display: ..3 Display: ..3 on and the switching valve R is set to the correct position depending on...
  • Page 39   System 15: 1 collector array – 2 storage tanks – heating return increase – intelligent valve control Description of the solar function: when the switch-on temperature dif- ference between the collector array A1 (T1) and one of the two storage Display: ..4 Display: ..4 tanks B1, B (T, T3) is exceeded, the solar circuit pump R1 is switched on and the switching valve R is set to the correct position depending on...
  • Page 40 System 16: 1 collector array – 1 storage tank –   1 storage tank with external heat exchanger – intelligent pump control Description of the solar function: when the switch-on temperature Display: ..5 Display: ..5 difference between the collector array A1 (T1) and one of the two stor- age tanks B1, B (T, T3) is reached, the appropriate solar circuit pump R or R3 is switched on.
  • Page 41   System 17: 1 collector array – 1 storage tank – 1 storage tank with external heat exchanger – intelligent valve control Description of the solar function: when the switch-on temperature dif- Display: ..6 Display: ..6 ference between the collector array A1 (T1) and one of the two storage tanks B1, B (T, T3) is exceeded, the solar circuit pump R is switched on and the switching valve R3 is set to the correct position depending on the storage tank to be loaded.
  • Page 42 System 18: 1 collector array – 2 storage tanks with   external heat exchanger – intelligent pump control Description of the solar function: the solar circuit pump R3 is switched Display: ..7 Display: ..7 on as soon as the switch-on temperature difference between the col- lector array A1 (T1) and one of the two storage tanks B1, B (T, T3) is reached.
  • Page 43   System 19: 1 collector array – 2 storage tanks with external heat exchanger – intelligent valve control Description of the solar function: the solar circuit pump R is switched Display: ..8 Display: ..8 on as soon as the switch-on temperature difference between the col- lector array A1 (T1) and one of the two storage tanks B1, B (T, T3) is reached.
  • Page 44 System 20: 2 collector arrays (east/west roof) –   2 storage tanks Description of the solar function: when the switch-on temperature dif- ference between the collector array A1 (T1) or collector array A (T) and Display: ..9 Display: ..9 one of the two storage tanks B1, B (T3, T4) is exceeded, the appropriate solar circuit pump R1 or R is switched on and the switching valve R3 is set to the correct position depending on the storage tank to be loaded.
  • Page 45   7.2.3 Systems with three storage tanks System 21: 1 collector array – 3 storage tanks – intelligent pump control Description of the solar function: when the switch-on temperature Display: .3 Display: .3 difference between the collector array A1 (T1) and one of the three stor- [Storage tank] [Storage tank] age tanks B1, B, B3 (T, T3, T4) is reached, the appropriate solar circuit...
  • Page 46 System 22: 1 collector array – 3 storage tanks –   intelligent valve control Description of the solar function: when the switch-on temperature difference between the collector array A1 (T1) and one of the three stor- Display: .3. Display: .3. age tanks B1, B, B3 (T, T3, T4) is exceeded, the solar circuit pump R1 is switched on and the switching valves R, R3 are set to the correct position depending on the storage tank to be loaded.
  • Page 47   7.2.4 Systems with a swimming pool System 23: 1 collector array – 1 swimming pool Description of the solar function: the solar circuit pump R3 is switched on as soon as the switch-on temperature difference between the collec- Display: .4 Display: .4 tor array A1 (T1) and the swimming pool C1 (T) is reached.
  • Page 48 System 24: 1 collector array – 1 swimming pool   with external heat exchanger Description of the solar function: the solar circuit pump R1 is switched on as soon as the switch-on temperature difference between the collec- Display: .4. Display: .4. tor array A1 (T1) and the swimming pool C1 (T) is reached. When the switch-off temperature difference or a safety limit is reached, the solar circuit pump R1 switches off.
  • Page 49   System 25: 1 collector array – 1 swimming pool in stand-alone operation with external heat exchanger Description of the solar function: the solar circuit pump R1 is switched Display: .4.3 Display: .4.3 on as soon as the switch-on temperature difference between the collec- tor array A1 (T1) and the swimming pool C1 (T) is reached.
  • Page 50 System 26: 2 collector arrays (east/west roof) –   1 swimming pool Description of the solar function: when the switch-on temperature difference between the swimming pool C1 (T3) and one or the other of Display: .4.4 Display: .4.4 the collector arrays A1, A (T1, T) is reached, then either solar circuit pump R1 for collector array A1 (T1), or solar circuit pump R for collector array A (T) is switched on, depending on where the temperature dif- ference occurs.
  • Page 51   System 27: 2 collector arrays (east/west roof) – 1 swimming pool with external heat exchanger Description of the solar function: when the switch-on temperature Display: .4.5 Display: .4.5 difference between the swimming pool C1 (T3) and one or the other of the collector arrays A1, A (T1, T) is reached, then either solar circuit pump R1 for collector array A1 (T1), or solar circuit pump R for collector array A (T) is switched on, depending on where the temperature dif-...
  • Page 52 System 28: 2 collector arrays (east/west roof) –   1 swimming pool in stand-alone operation with external heat exchanger Description of the solar function: when the switch-on temperature Display: .4.6 Display: .4.6 difference between the swimming pool C1 (T3) and one or the other of the collector arrays A1, A (T1, T) is reached, then either solar circuit pump R1 for collector array A1 (T1), or solar circuit pump R for collector array A (T) is switched on, depending on where the temperature dif-...
  • Page 53   7.2.5 Systems with one storage tank and a swimming pool System 29: 1 collector array – 1 storage tank – 1 swimming pool with external heat Display: .5 Display: .5 exchanger – intelligent pump control [Storage tank + swimming pool] [Storage tank + swimming pool] ...
  • Page 54 System 30: 1 collector array – 1 storage tank –   1 swimming pool with external heat exchanger – intelligent valve control Description of the solar function: when the switch-on temperature Display: .5. Display: .5. difference between the collector array A1 (T1) and the storage tank B1 (T) or the swimming pool C1 (T3) is reached, the solar circuit pump R1 is switched on and the switching valve R is set to the correct position depending on the storage tank/swimming pool to be loaded.
  • Page 55   System 31: 1 collector array – 1 storage tank – 1 swimming pool in stand-alone operation with external heat exchanger – intelligent pump control Display: .5.3 Display: .5.3 Description of the solar function: when the switch-on temperature difference between the collector array A1 (T1) and the storage tank B1 (T) or the swimming pool C1 (T3) is reached, the appropriate solar cir- cuit pump R1 or R is switched on.
  • Page 56 System 32: 1 collector array – 1 storage tank –   1 swimming pool in stand-alone operation with external heat exchanger – intelligent valve control Display: .5.4 Display: .5.4 Description of the solar function: when the switch-on temperature difference between the collector array A1 (T1) and the storage tank B1 (T) or the swimming pool C1 (T3) is reached, the solar circuit pump R1 is switched on and the switching valve R is set to the correct position depending on the storage tank/swimming pool to be loaded.
  • Page 57   7.2.6 Systems with two storage tanks and a swimming pool System 33: 1 collector array – 2 storage tanks – 1 swimming pool in stand-alone operation Display: .6 Display: .6 with external heat exchanger – [Storage tank + swimming pool] [Storage tank + swimming pool] intelligent pump control ...
  • Page 58 System 34: 1 collector array – 2 storage tanks –   1 swimming pool in stand-alone operation with external heat exchanger – intelligent valve control Display: .6. Display: .6. Description of the solar function: when the switch-on temperature difference between the collector array A1 (T1) and one of the two stor- age tanks B1, B (T, T3) or the swimming pool C1 (T4) is exceeded, the solar circuit pump R1 is switched on and the switching valves R, R3 are set to the correct position depending on the storage tank/swimming...
  • Page 59   7.2.7 Seasonal systems System 35: 1 collector array – 1 storage tank – 1 swimming pool with external heat exchanger – intelligent pump control Display: .7 Display: .7 [Seasonal systems] [Seasonal systems] Description of the solar function: this system’s controller function cor- responds to System 9. ...
  • Page 60 System 37: 1 collector array – 1 storage tank – 1 swimming pool in stand-alone operation with external heat exchanger – intelligent pump control   Description of the solar function: this system’s controller function cor- responds to System 31. The special feature of the seasonal system: it is possible to switch with ease between summer and winter priority control.
  • Page 61 System 39: 1 collector array – 2 storage tanks – 1 swimming pool in stand-alone operation with external heat exchanger – intelligent pump control   Description of the solar function: this system’s controller function cor- responds to System 33. The special feature of the seasonal system: it is possible to switch with ease between summer and winter priority control.
  • Page 62 Functions   Funktionen Funktionen Funktionen [....] Funktionen Funktionen Funktionen [....] Additional controller settings can be made by using the "Functions" sub- menu. The following submenus can be opened using the "Functions" menu item: Display: 3 Display: 3 • Circulation 7.3. [Function] [Function] •...
  • Page 63 : selecting an output.  SET: press button to confirm.  NOTE R? or T? indicates an output or input which has not yet been selected. Only outputs which are not yet required by the respective system can be selected. Double allocation of outputs is not possible. However, double allocation of inputs is possible.
  • Page 64 Activating temperature control "Functions" submenu selected, see "Selecting a function" ✓ (see chapter 7.3.1). Circulation activated, see "Activating a function" (see chapter 7.3.1) ✓ Outputs selected, see "Selecting an output" (see chapter 7.3.1). ✓ : press button.  The "Temp. controlled" display appears. ...
  • Page 65   7.3.3 Back-up heating function [....] [....] This function allows thermostatic control of an output for additional heating of the solar storage tank using an oil or gas burner. This function can also be limited to specific times by using additional time control. Display: 3. Display: 3. Time control: time switch with 3 time windows.
  • Page 66 7.3.4 Solid fuel boiler function   [....] [....] This function allows control of a pump for heating of a storage tank using a solid fuel boiler. When the temperature difference between solid fuel boiler and storage tank Display: 3.3 Display: 3.3 exceeds the "on"...
  • Page 67   7.3.5 Quick charge function [....] [....] This function attempts to load the upper part of the storage tank more quickly by means of a higher loading temperature in order to prevent conventional boiler back-up heating as early as possible. Display: 3.4 Display: 3.4 When the temperature in the upper part of the storage tank falls below...
  • Page 68 7.3.6 Bypass function   [.....] [.....] This function allows the solar circuit to be bypassed using a switching valve. In this way the collector circuit can be warmed before the storage tank is switched into the circuit. This is especially useful in larger solar Display: 3.5 Display: 3.5 energy systems having a large volume of heat transfer fluid.
  • Page 69   7.3.7 Heat quantity function [....] [....] The controller has a function for measuring the quantity of heat. This allows, for instance, to record the quantity of heat fed into the storage tank from the solar energy system. To do this, the temperature of the Display: 3.6 Display: 3.6 supply and return, and the flow rate of the solar energy system must be...
  • Page 70 Determining the flow rate for the connected solar circuit pumps NOTE The following settings are only possible with the flow rate determina- tion method "Without flow sensor". Flow rate determination method set to "Without flow sensor". ✓ : press button. ...
  • Page 71   7.3.8 Thermostat function [....] [....] This function allows a controller output to be controlled depending on a on-off on-off pre-defined temperature range. Depending on the temperature setting, the thermostat function can be activated either when the temperature Display: 3.7 Display: 3.7 falls below (heating) or rises above (cooling) a certain level.
  • Page 72 NOTE The switch-on time must always be before the switch-off time. There- fore, when the switch-on value is being adjusted, the switch-off value will also be changed to a later time if necessary. Adjusting the switch-off value to a time before the switch-on value is blocked. 7.3.9 Difference thermostat function ...
  • Page 73 "min" (heat source's minimum value) flashes after  confirmation of the maximum value. : set the minimum value.  SET: press button to confirm.  The settings are saved.  Defining limits for the heat target : press button.  ...
  • Page 74 7.3.10 Time function   [.......] [.......] This function allows a controller output to be controlled depending on on-off on-off a predefined time range. Setting the time window Display: 3.9 Display: 3.9 [Time function] [Time function] "Functions" submenu selected, see "Selecting a function" ✓...
  • Page 75 SET: press button to confirm.  The settings are saved.  NOTE The switch-on time must always be before the switch-off time. There- fore, when the switch-on value is being adjusted, the switch-off value will also be changed to a later time if necessary. Adjusting the switch-off value to a time before the switch-on value is blocked.
  • Page 76 7.3.13 Holiday/recooling function   [..........] [..........] If the user extracts too little hot water, or none at all (e.g. during holidays), a completely heated storage tank can cause the solar energy system to begin evaporation prematurely, and the system is thus subjected to a Display: 3.1 Display: 3.1 higher thermal load.
  • Page 77   7.3.14 Frost protection function [....] [....] When the frost protection function is activated, the solar circuit pump is switched on as soon as the collector temperature sinks below +5 °C. This causes heat to be pumped through the collector from the lower Display: 3.13 Display: 3.13 part of the storage tank in an attempt to prevent the collector from...
  • Page 78 CAUTION Risk of scalding by hot water temperatures above 60 °C! • Perform anti-legionella function only outside normal operating hours. • Inform house residents about the timeframe of the anti-legionella function. Activating the Anti-legionella function "Functions" submenu selected, see "Selecting a function" ✓ (see chapter 7.3.1). Anti-legionella function activated, see "Activating a function" ✓...
  • Page 79   7.3.16 Display storage tank top function [......] [......] The display storage tank top function serves merely as an additional display and has no effect on control. "Functions" submenu selected, see "Selecting a function" ✓ Display: 3.15 Display: 3.15 (see chapter 7.3.1).
  • Page 80 : select additional measurement values.  SET: press button to confirm.  The selected measurement sensors are indicated.  : press button until the next page appears.  Display for the selection of the outputs to be recorded appears.  NOTE Outputs R1 to R3 as well as the alarm output can be selected here.

  • Page 81: Parameters

    Parameters   [....] [....] In the factory, the controller is configured in such a manner that it can be used in most applications without changes to these values. All parameters can be modified to a certain extent to suit the individual Display: 4 Display: 4 requirements of the system.
  • Page 82 7.4.2 Setting the loading strategy parameter   [..[........Access the "loading strategy" parameter, (see chapter 7.4.1). ✓ ....] ....] SET: press button.  The display for setting the temperature differential control or  Display: 4.1 Display: 4.1 target temperature control appears.

  • Page 83: Storage Priority

    Storage priority   When a -storage tank system or a 3-storage-tank system is selected, the storage priority can also be specified. If storage priority is activated, the storage tank sequence can be defined. Display: 5 Display: 5 If it is intended that one of the storage tanks is not to be loaded, this [Storage priority] [Storage priority] tank can be "removed"...

  • Page 84: Language

    Language  [....] Accessing and selecting the language SET: press button for approx.  sec.  Display: 6 : select menu item "Language".  [Language] SET: press button.   The language display appears.  SET: press button.  The set language flashes. ...

  • Page 85: Automatic Mode

    Automatic mode Symbols In "Automatic" operation of the controller, the status display with the selected solar energy system and other set functions are shown on the display. You can access the values of the individual sensors, the outputs' running times, and additionally set functions, by using the operating buttons (arrow up and arrow down).

  • Page 86: Status Display

    Status display Switching the display screen  : press button.  The following values and displays appear one after another:  • The temperature sensors of the system set, and the corresponding Display example current temperature values • Outputs and corresponding running times •...

  • Page 87: Data Logger

    Data logger An SD card enables you to save all the measurement data collected by the controller over a long period of time. The data logger enables detailed system control e.g. chronological sequence of yields. In addi- tion, you can use the stored measurements to optimise the settings of the solar energy system and thus achieve the highest possible efficiency of the system.

  • Page 88: Formating

    be accessed by pressing the SET button. Here it is pointed out that the data logger function should be switched off before the removal of the SD card in order to exclude the possible loss of data. The help window is closed again by pressing any button.

  • Page 89: Data Evaluation

    Push the operating switch downwards (position “OFF”).   The following message appears with the formatting prompt  [..... "Format SD card? Warning: all data will be deleted!" Warning: all [...] ..data will be deleted!" ....[...] ....] SET: press to start formatting, ...

  • Page 90: Service

    Service Updating the controller software The controller is programmed in the factory with the latest controller software at the time of production. Therefore, the software does not usually have to be updated. However, if you would like to use newer controller software or if an update is recommended for technical reasons, you can transfer new controller software to the controller via the RS3 interface.
  • Page 91 The solar pump does not operate, despite the fact that the switch-on condi- tions are satisfied: Secondary symptoms Possible cause Procedure The pump symbol in the • Pump power supply is • Check the pump power cable. display rotates. interrupted. • Check the fuse in the controller (replacement fuse is located in the case).

  • Page 92: Pt1000 Temperature Sensor Values

    The solar pump operates, despite the fact that the switch-on condition is not fulfilled: Secondary symptoms Possible cause Procedure The pump symbol in • The interval function is acti- • No fault the display rotates. vated. • Deactivate the relevant function, if •...

  • Page 93: Information Windows

    Information windows The following information windows are displayed whenever a function's settings are not complete, activa- tion of a function is not possible, errors occur in the system, or certain functions are currently activated. Display Description Measures Function cannot be activated as the cor- Check and complete the settings.
  • Page 94 The solar circuit has stopped because the controller is conducting a priority – test. This test checks whether, instead of the second-priority storage tank, the first-priority storage tank could also be loaded. This test can take several minutes, as the collector array must heat up sufficiently.
  • Page 95 Sensor cable has short-circuited or the Check connection and/or sensor ca- sensor is possibly defective. ble. Possibly check sensor and sensor cable using an ohmmeter. Loading of the storage tank/pool was If this is not wanted, loading can be deactivated due to storage priority. reactivated via storage priority or season selection.
  • Page 96 Controller performs the formatting. – Formatting has failed. Use another SD card. SDMC: format error Formatting has been successfully com- pleted. – SDMC: format OK Controller stores the data on the SD card. For calculation of the remaining – days, see chapter 9.. If the free SD card memory is not suf- If you want to save the data, remove ficient for further measurement data...

  • Page 97: Plausibility Indices

    Plausibility indices The internal plausibility check ascertains whether conflicting settings have been detected in the controller. In this event, an information window displays an error code. The reasons which cause the information window to appear, along with each corresponding error code, are described in the following table. Check your settings at the controller, and correct them if necessary.
  • Page 98 P 5 Target temperature control storage tank  > maximum temperature loading circuit 1 P 6 Target temperature control storage tank  < minimum temperature loading circuit  P 7 Target temperature control storage tank  > maximum temperature loading circuit  P 8 Switch-on temperature difference external heat exchanger + maximum temperature storage tank 1 >...

  • Page 99: Technical Data

    Technical data Temperature difference controller Rated voltage (system voltage) 30 VAC, 50 Hz [optional 115 VAC, 60 Hz] Max. own consumption ≤ 4 W Inputs T1 - T5: temperature recording (Pt1000) T6: temperature recording (Pt1000) or pulse recording Additional inputs 1 x Direct Sensor input (flow rate and temperature) Outputs R1 and R: TRIAC output for RPM control, max.

  • Page 100: Parameter Settings

    14.2 Parameter settings Maximum temperature storage tank 1, storage tank 2 and storage tank 3: Factory Adjustable Adjustable up Description setting down to min. to max. 60 °C 0 °C 95 °C When the maximum temperature of storage tank 1 (storage tank , 3) is reached, storage tank 1 (stor- age tank , 3) is not loaded until the temperature drops to 3 K below the defined maximum value.
  • Page 101 Maximum collector temperature: Factory Adjustable Adjustable up Description setting down to min. to max. 130 °C Minimum 180 °C When the maximum collector temperature is reached, collector the solar circuit pump switches off. When the tem- temperature perature drops to 3 K below the defined maximum +0 K value, the solar circuit pump switches on again.

  • Page 102: Parameter Values For Functions

    Minimum temperature loading circuit 1, loading circuit 2: Factory Adjustable Adjustable up Description setting down to min. to max. 0 °C 0 °C Maximum The storage tank loading pump is not switched on temperature until the temperature on the secondary side of the loading circuit heat exchanger has reached the defined minimum -0 K temperature.
  • Page 103 Pulse controlled: Circulation time:  min 1 min 10 min Wait time: 10 min 0 min 60 min Back-up heating Factory Adjustable Adjustable up Comment setting down to to max. min. Temperature controlled: Switch-on temperature: 55 °C 0 °C Switch-off temperature - K Switch-off temperature: 60 °C Switch-on...
  • Page 104 Quick charge: Factory Adjustable Adjustable up Comment setting down to to max. min. Temperature controlled: Switch-on temperature: 50 °C 0 °C 95 °C The switch-off temperature is adjusted according to the hysteresis. Switch-off temperature: 5 °C Switch-on Switch-on temperature temperature 10 K Heat quantity: Factory Adjustable Adjustable up...
  • Page 105 Thermostat: Factory Adjustable Adjustable up Comment setting down to to max. min. Temperature controlled: Switch-on temperature: 0 °C 0 °C 180 °C The on and off values can be set independently of each other. Switch-off temperature: 0 °C 0 °C 180 °C Time controlled: 00.00 3.59 Programming a time period which goes beyond...
  • Page 106 Time function: Factory Adjustable Adjustable up Comment setting down to to max. min. Time controlled: 00.00 3.59 Programming a time period which goes beyond midnight (4.00) is not possible. Interval: Factory Adjustable Adjustable up Comment setting down to to max. min. Interval time: 15 min 10 min 60 min Test-on time: 5 sec.

  • Page 107: Notes

    Notes 730.137 | 08.37...
  • Page 108 730138...

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