LAMBERTI ELEKTRONIK LATHERM SOL MAXIMAL Commissioning Manual
LAMBERTI ELEKTRONIK LATHERM SOL MAXIMAL is a microprocessor-based controller designed for solar energy systems with up to two collector arrays and two storage reservoirs. It optimizes heat energy from the collector arrays based on solar irradiation and system temperatures, enabling efficient heating of up to two storage reservoirs, like domestic water tanks or swimming pools. The controller also includes features for system diagnostics, communication via eBus, and visualization.
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Page 1 Universal controller for solar energy systems with up to two collector arrays and two storage reservoirs COMMISSIONING MANUAL Page 2 Contents ! Note! Before beginning assembly or installation work, first read this commissioning manual and familiarise yourself with its content in full! The safety instructions and working instructions in the operating manual must also be observed! Take note of the settings which you make, at the respective places provided for this purpose in this commissioning manual and in the operating manual! Contents 1. Product description .................................................................................................................................4 1.1. Features and functions.......................................................................................................................4 2. Technical data.........................................................................................................................................5 3. Safety instructions...................................................................................................................................5 4. Transport and storage.............................................................................................................................6 5. Installing and connecting the controller...................................................................................................6 5.1. Proceed as follows – step by step .....................................................................................................6 5.2. System layouts...................................................................................................................................7 5.3. Possible additional functions..............................................................................................................8 5.4. Relay connector assignment..............................................................................................................9 5.5. Sensor connector assignment ........................................................................................................ 10 5.6. Installing the controller .................................................................................................................... 11 5.7. Electrical connections ..................................................................................................................... 11 5.8. Installing the collector sensor and storage reservoir sensor........................................................... 12 5.9. Dismantling and disposal ................................................................................................................ 12 6. Commissioning the controller............................................................................................................... 13 6.1. Front view of the controller with buttons and display ...................................................................... 13 6.2. Structure of the start display ........................................................................................................... 13 7. The specialised mechanic level ........................................................................................................... 14 7.1. Structure of submenus and navigation ........................................................................................... 14 8. Configuration of system layouts........................................................................................................... 15 8.1. System layout 1 (1 collector array, 1 storage reservoir, 1 pump) ................................................... 16 8.2. System layout 2 (1 collector array, 2 storage reservoirs, 2 pumps)................................................ 18 8.3. System layout 3 (1 collector array, 2 storage reservoirs, 1 pump, 1 three-way valve) ................... 20 8.4. System layout 4 (1 collector array, 2 storage reservoirs, 1 pump, 2 straight-way valves).............. 22 8.5. System layout 5 (2 collector arrays, 1 storage reservoir, 2 pumps)................................................ 24 8.6. System layout 6 (2 collector arrays, 2 storage reservoirs, 2 pumps, 2 straight-way valves) .......... 26 8.7. System layout 7 (2 collector arrays, 2 storage reservoirs, 2 pumps, 1 three-way valve) ............... 28 9. Batch loading, parallel loading and pump blockage protection............................................................ 30 9.1. Batch loading .................................................................................................................................. 30 9.2. Parallel loading................................................................................................................................ 30 9.3. Pump blockage protection............................................................................................................... 30 10. Setting the additional functions ............................................................................................................ 31 10.1. Additional function: hot water backup heating ................................................................................ 31 10.2. Additional function: anti-Legionella ................................................................................................. 32 10.3. Additional function: heating support................................................................................................ 33 10.4. Additional function: second collector sensor................................................................................... 33 10.5. Additional function: solar sensor ..................................................................................................... 34 10.6. Additional function: low flow............................................................................................................ 34 10.7. Additional function: low-flow for stratified storage reservoir............................................................ 35 10.8. Additional function: collector monitoring / tube function.................................................................. 35 10.9. Additional function: yield calculation ............................................................................................... 36 10.10.Additional function: bypass ............................................................................................................. 37 10.11.Additional function: external heat exchanger .................................................................................. 38 10.12.Additional function: emergency collector switch-off ........................................................................ 38 10.13.Additional function: collector safety................................................................................................. 39 10.14.Additional function: storage reservoir safety ................................................................................... 39 10.15.Additional function: collector frost protection .................................................................................. 39 10.16.Additional function: thermostat, e.g. for activation of the circulation pump..................................... 40 10.17.Additional function: temperature comparison.................................................................................. 41 10.18.Additional function: hot water overturn in storage reservoir............................................................ 42 11. System information menu .................................................................................................................... 43 12. Settings for use of eBus....................................................................................................................... 43 13. Overview of all settings ........................................................................................................................ 44 14. Relay test submenu “REL”................................................................................................................... 48 15. Visualisation and data logger............................................................................................................... 48 16. Faults and troubleshooting................................................................................................................... 49 Page 3 Contents Page 4 Product description 1. Product description Your solar controller is a microprocessor-based controller, for control of solar energy systems with up to two separate collector arrays and two storage reservoirs. The pumps are controlled so as to optimise the heat energy obtained from the solar collector arrays, according to the solar irradiation and the temperatures which arise in the solar energy system. With the heat energy thus obtained, a maximum of two storage reservoirs can be loaded, e.g. a domestic water storage tank or a swimming pool. The solar controller can control solar energy systems which have collector arrays mounted with two different orientations. 1.1. Features and functions Large illuminated display (LCD) with universally understandable symbols All key system data at a glance Easy operation and programming Modern design in a compact housing for wall-mounting 7 predefined system layouts to be adapted to the individual solar energy system Temperature difference control of a solar energy system with up to 2 collector arrays and up to 2 storage reservoirs Speed control of up to 4 circulation pumps Priority switching for systems with multiple storage reservoirs (priorities can be selected) Low-flow concept for optimal stratified loading Heating support by means of heating circuit return increase 6 timer-switch channels for backup heating and special functions Backup heating operation with priority switching of domestic water Bypass switching for large collector surfaces and long connecting lines External heat exchanger for large systems with several buffer storage reservoirs Frost protection function and protection from overheating for collectors and storage reservoirs Hot water overturn and anti-Legionella function Thermostat, temperature-comparison and timer-switch channels System diagnostics Communication via eBus (remote data transfer optional) Visualisation and data logger via eBus Solar yield with volume flow meter Solar sensor for irradiation display Page 5 Technical data 2. Technical data Supply voltage 230 V AC 50 Hz Power consumption 3.7 VA Fuse 2.5 AT, microfuse 5 mm x 20 mm Inputs 8 inputs: temperature sensor: Pt1000 (-20 °C to +150 °C) volume flow meter: 1 pulse per l (litre) solar sensor: (20 to 1000 W/m²) Outputs 4 semiconductor relays: each 0.5 A, 250 V AC ( ) (20 VA minimum load) 1 low-voltage relay: 0.5 A, 50 V AC/DC ( ) Interface Protection degree eBus (for visualisation and data logger) Mode of operation type 1 Y (as per DIN EN 60730-1) Insulation class 2 Ambient temperature 0 °C to + 50 °C Power reserve > 10 years at + 20 °C, with lithium battery Installation wall-mounted Housing plastic, PC / ABS Dimensions 170 mm x 170 mm x 55 mm Weight 0.65 kg Conformity The solar controller meets the requirements of the Electromagnetic Compatibility Directive (2004/108/EC), the Low Voltage Directive (2006/95/EC) and the harmonised standards DIN EN 60730-1 and DIN EN 60730-2-9. It bears the CE label. IP 20 as per DIN EN 60529 (VDE 0470-1) 3. Safety instructions Danger of electrocution! The controller is to be assembled, electrically installed, commissioned, inspected and repaired by trained, competent and authorised persons (qualified electricians as per DIN VDE 1000-10 and BGV A3) only! Observe all applicable guidelines and regulations of the local electricity supplier! Before beginning installation or repair work on electrical equipment, always ensure complete disconnection from the mains and secure against reactivation! Do not work on live parts! The controller may only be installed and operated in: dry environments which are not potentially explosive closed rooms rooms with a temperature between 0 °C and + 50 °C DANGER Page 6 Transport and storage 4. Transport and storage Thoroughly check whether the packaging or the controller shows any sign of damage. Transport the controller in the original packaging only. If the controller falls, even from a low height, it may get damaged. Prevent impact and extreme temperatures (below 0 °C or above + 50 °C) during transport and storage. The controller may only be stored in its original packaging and in a dry environment. 5. Installing and connecting the controller 5.1. Proceed as follows – step by step 1. Refer to section 5.2. System layouts to determine the layout number for the respective solar energy system. 2. Check whether you wish to use additional functions (see 5.3. Possible additional functions and 10. Setting the additional functions [the individual additional functions are explained here]). 3. Check whether the desired additional functions can be realised, i.e. whether the selected system layout has free sensors and relays for the functions (see 5.4. Relay connector assignment and 5.5. Sensor connector assignment). 4. Install the controller at a suitable location and realise the electrical connections (see 5.6. Installing the controller and 5.7. Electrical connections). 5. Install the required sensors (see 5.8. Installing the collector sensor and storage reservoir sensor). 6. Connect the required sensors to the controller and assign the relays according to your requirements (see 5.4. Relay connector assignment and 5.5. Sensor connector assignment). 7. Switch on the controller by pressing and holding the esc button for at least 5 seconds. 8. Familiarise yourself with the controller’s menu navigation (see 6.1. Front view of the controller with buttons and display and the detailed description in the operating manual). 9. Configure the controller according to the instructions in the corresponding subsection in 8. Configuration of system layouts. While doing so, note down the values in this manual. 10. Configure any additional functions (see 10. Setting the additional functions). 11. Record your settings in the respective sections of this commissioning manual under “Selection” (8. Configuration of system layouts and 10. Setting the additional functions). 12. Fill in the system description in the operating manual (12. Your solar energy system) for the owner of the solar energy system. Page 7 Installing and connecting the controller 5.2. System layouts ! Note! Select the system layout which suits your solar energy system and mark it as follows: Schema 1 Layout 1 1 Kollektor / 1 Speicher 1 collector array / 1 storage reservoir / 1 pump Layout 2 1 collector array / 2 storage reservoirs / 2 pumps F1 . Layout 3 1 collector array / 2 storage reservoirs / Dreiwegeventil 1 pump / 11three-way valve F1 F1 R1 R1 (F3) (F3) F4 F1 R1 F2 R1 R2 R2 (F5) F4 F6 R2 R1 (F3) F4 F6 Schema 6 Layout 6 2 Kollektoren / 2 Speicher - Ventile 2 collector arrays / 2 storage reservoirs / 2 pumps / 2 straight-way valves F2 F1 R3 (F3) (F5) F4 F6 Layout 5 2 collector arrays / 1 storage reservoir / 2 pumps F1 (F3) (F5) F4 Schema 4 Layout 4 1 Kollektor / 2 Speicher - Ventilereservoirs / 1 collector array / 2 storage 1 pump / 2 straight-way valves R2 R2 R1 F4 R3 R4 (F3) (F5) F6 Schema 7 Layout 7 2 Kollektorenarrays / 2 Speicher - Dreiwegeventil 2 collector / 2 storage reservoirs / 2 pumps / 1 three-way valve F1 F2 R1 R2 R3 (F5) (F3) F4 F6 Note! Upon initial commissioning of the controller, the system layout (configuration) which you have selected must be set on the operating level E3-1 / 2. Upon delivery, the configuration is set to layout 1. Changing the system layout (see section 8) causes the factory settings to be restored. All new and changed settings realised beforehand will be lost (except for the time and date settings). ! Page 8 Installing and connecting the controller 5.3. Possible additional functions This table shows you the additional functions which, in principle, are possible in your system layout. Function Described in section System layout 1 2 3 4 5 6 7 Hot water backup heating 10.1. x x x x x x x Second collector sensor 10.4. x x x x – – – Solar sensor 10.5. x x x x x x x Low flow 10.6. x x x x x x x Low flow for stratified storage reservoir 10.7. x x x x x x x Collector monitoring / tube function 10.8. x x x x x x x Yield calculation 10.9. x x x x x x x Collector safety function 10.13. x x x x x x x Collector frost protection function 10.15. x x x x x x x Anti-Legionella function* 10.2. x x x x x – x Heating support* 10.3. x x x x x – x Bypass or external heat exchanger* 10.10. / 10.11. x – x x x – x Storage reservoir safety function* 10.14. x x x x x – x Thermostat function (circulation pump)*/** 10.16. x x x x x x x Temperature comparison function*/** 10.17. x x x x x x x Hot water overturn in storage reservoir* 10.18. x x x x x – x 3 2 2 1 2 – 1 Free relays in the respective layout * Free relay required, e.g. with system layout 1, only 3 of the additional functions (in the grey fields) can be selected; in system layout 3, only 2 of these additional functions can be selected. ** For these functions, it is also possible to use a relay which is already assigned, or the low-voltage relay. Page 9 Installing and connecting the controller 5.4. Relay connector assignment The following table shows whether the selected additional functions can be realised with your system layout and is to be understood as follows: For the relay assignments shown in the white fields, the relays must be connected exactly as shown in the table. Possible additional functions, for which relays can be assigned, are shown in the grey fields. If these additional functions are used, the relays must also be connected exactly as shown in the table. Only the free relays (empty fields in the table) can be assigned individually. The relays for the anti-Legionella, hot water overturn and circulation pump functions can be freely selected unless otherwise assigned (empty fields in the table or unused additional functions in the grey fields). Relay System layout 1 R1 Solar pump R2 R3 R4 2 4 5 6 7 Solar pump for storage reservoir 1 Solar pump Solar pump Solar pump Solar pump Solar pump for collector 1 for collector 1 for collector 1 Solar pump for storage reservoir 2 Three-way valve for storage reservoir 1 and storage reservoir 2 Valve for storage reservoir 1 Solar pump Solar pump Solar pump for collector 2 for collector 2 for collector 2 Pump for external heat exchanger or bypass valve Valve for heating support 3 Pump for Valve for external heat storage exchanger or reservoir 2 bypass valve Valve for heating support Valve for heating support Pump for Valve for external heat storage exchanger or reservoir 1 bypass valve Valve for heating support or Valve for pump for heating external heat support exchanger or bypass valve Valve for storage reservoir 2 Three-way valve for storage reservoir 1 and storage reservoir 2 Valve for heating support or pump for external heat exchanger or bypass valve The low-voltage relay (NVR) is available as an output (potential-free low-voltage contact) for the thermostat and temperature comparison functions. Note! Safety extra-low voltage is not to be connected with the relays on the high-voltage side (R1 to R4). Only safety extra-low voltage may be connected with the low-voltage relay (NVR). ! Page 10 5.5. Installing and connecting the controller Sensor connector assignment The following table shows whether the selected additional functions can be realised with your system layout and is to be understood as follows: For the sensor assignments shown in the white fields, the sensors must be connected exactly as shown in the table. Possible sensor assignments are shown in grey fields. If these sensor assignments are realised, the sensors must be connected exactly as shown in the table. Only the free sensors (empty fields in the table) can be assigned individually. For the additional functions thermostat, temperature comparison, yield calculation, solar sensor and hot water overturn, the sensors can be configured freely and activated on the specialised mechanic level. Sensor System layout 1 F1 Collector array 1 2 Collector array 1 3 Collector array 1 4 Collector array 1 F2 5 6 7 Collector array 1 Collector array 1 Collector array 1 Collector array 2 Collector array 2 Collector array 2 F3 Upper part of Upper part of Upper part of Upper part of Upper part of Upper part of Upper part of storage storage storage storage storage storage storage reservoir 1 reservoir 1 reservoir 1 reservoir 1 reservoir 1 reservoir 1 reservoir 1 F4 Lower part of Lower part of Lower part of Lower part of Lower part of Lower part of Lower part of storage storage storage storage storage storage storage reservoir 1 reservoir 1 reservoir 1 reservoir 1 reservoir 1 reservoir 1 reservoir 1 F5 Upper part of Upper part of Upper part of storage storage storage reservoir 2 reservoir 2 reservoir 2 Upper part of Upper part of storage storage reservoir 2 reservoir 2 F6 Lower part of Lower part of Lower part of storage storage storage reservoir 2 reservoir 2 reservoir 2 Lower part of Lower part of storage storage reservoir 2 reservoir 2 F7 Heating return F8 Heat exchanger or bypass Heating return Heating return Heating return Heating return Heat Heat Heat exchanger or exchanger or exchanger or bypass bypass bypass Heating return Heating return Heat exchanger or bypass Page 11 Installing and connecting the controller Installing the controller esc - Upper fastening hole (for hanging) + ok 130mm 5.6. 140mm 1. 2. 3. 4. 5. 6. 7. 8. Terminal cover Lower fastening holes Choose a suitable installation location. Remove the collector’s terminal cover. Mark and drill (Ø 6 mm) the central upper fastening hole. Insert the provided rawlplug and a screw. Hang the controller on the screw and align it. Mark the lower fastening holes (140 mm between holes). Remove the controller once more. Drill the two lower holes (Ø 6 mm). Insert rawlplugs and hang up the controller once more. Screw the controller firmly in place at the two fastening holes. Risk of injury! Do not use the controller as a drilling template! DANGER Connection diagram 5.7. Electrical connections Danger of electrocution! Every time the terminal cover is opened, the controller is to be disconnected from the power supply beforehand! Ensure that it cannot be reactivated! The type of current (alternating current) and the voltage must match the specifications in the connection diagram. Connect the controller as shown in the connection diagram. DANGER Page 12 Installing and connecting the controller Electrical connections are to be realised with screw terminals (single wire / fine wire, max. 1.5 mm²). The mains supply’s protective earth connector is to be connected to the 5-pole terminal block ( ). Protective earth connection of loads (pumps etc.) is to be realised at the 5-pole terminal block provided for this purpose. In so doing, it must be ensured that the mains supply’s protective earth connector is also connected to this terminal block. Each terminal may only be connected to one connecting wire. Adequate strain relief must be ensured! Only use the Pt1000 temperature sensors approved for use with the controller. All cables which carry low voltage (e.g. sensor cables) are to be routed in such a way that they are kept separate from cables which carry mains voltage. The polarity of the sensor cables is arbitrary. ! Note! Only safety extra-low voltage may be connected with the low-voltage relay (NVR). Safety extra-low voltage is not to be connected with the relays on the high-voltage side (R1 to R4). After the electrical connection work, replace the terminal cover. 5.8. Installing the collector sensor and storage reservoir sensor ! Note! Do not route sensor cables together with cables which carry more than 50 V (low voltage)! Shield sensor cables sufficiently. Thermally insulate sensors and piping. Installing the collector sensor: Insert the collector sensor into the provided opening on the collector array and fasten it in place (refer to the installation instructions from the collector manufacturer). Installing the storage reservoir sensor: Insert the storage reservoir sensor into the provided opening at the storage reservoir and fasten it in place (refer to the installation instructions from the storage reservoir manufacturer). Sensor cables can be extended to a maximum length of 100 m. ! 5.9. Note! As temperatures of up to + 90 °C arise in the domestic water storage reservoir, a thermal hot water mixer must be installed (German Heating Installation Regulation HeizAnlV § 8 para. 2)! In order to protect the storage reservoir from high temperatures, or to limit loading to the storage reservoir’s maximum temperature, the collector safety function (KSF) can be set to “no” on the operating level E3-6 / 2. Dismantling and disposal DANGER Danger of electrocution! Disconnect the controller from the power supply before dismantling! Ensure that it cannot be reactivated! To dismantle the controller, follow the installation instructions in reverse order. Disposal must comply with the German Electrical and Electronic Equipment Act (ElektroG), which governs the sale, return and environmentally sound disposal of electrical and electronic equipment. Page 13 Commissioning the controller 6. Commissioning the controller 6.1. Front view of the controller with buttons and display OK : + – Apply current setting Open a submenu } : : On the normal level: Within a menu: For settings: Select a submenu Scroll Change value esc : Return to previous menu Discard change and restore previous value Delete input Note! If “OFF” appears in the display, the controller has been switched off. Switch the controller back on by pressing and holding the esc button for at least 5 seconds. As soon as the start display appears, the controller has been reactivated. In order to switch off the controller, press and hold the esc button for another 5 seconds. ! 6.2. Structure of the start display Loading pump 1 active Collector array 1 Temperature in upper part of storage reservoir 1 Collector array temperature Loading pump 2 inactive Loading pumps Temperature in lover part of storage reservoir 1 Backup heating active Storage reservoir 1 Please note that other symbols or values which are not pictured above can also appear in your controller’s start display. Moreover, the symbols and measurements for collector array 2 or storage reservoir 2 can also be shown in the start display, according to your solar energy system’s configuration. Page 14 The specialised mechanic level 7. The specialised mechanic level The specialised mechanic level contains the settings which must be set during commissioning (possibly only once). + To open the specialised mechanic level, press and hold the buttons simultaneously for five seconds while in the normal start display. To enter the various sublevels (E3-1 to E3-10), use the view the sublevels’ settings. ! + – or – and button. Press the OK button to Note! Settings which deviate from the factory settings are indicated by flashing underscore lines. These disappear if the value is set to the factory setting once more. 7.1. Structure of submenus and navigation Several functions can be set within each submenu. These functions are numbered sequentially and marked by the symbol NO. This numbering can be found in the tables regarding configuration of the system layout and additional functions (e.g.: E3-3 / 2): Example: E3-3 = number of the submenu N_ = number of the function = change value 65 °C = set value TCS = function’s identifier In the submenu, scroll through the individual values with the buttons + and – . If you wish to change a value, press the OK button. – . Press the + and The symbol appears in the display. Change the value with the buttons OK button to apply the new value. Pressing esc discards the new value; the original value then reappears in the display. In a submenu, only those values possible in the selected configuration are displayed. Relays and sensors can only be allocated if they have not already all been assigned. To leave a menu, press the esc button. Page 15 Configuration of system layouts 8. Configuration of system layouts Note! Upon delivery, the configuration is set to layout 1. Changing the system layout causes the factory settings to be restored. All new and changed settings realised beforehand will be lost. ! Open the specialised mechanic level (press and hold the buttons + and – simultaneously for five – button to select the sublevel E3-1. Confirm your selection with seconds) and use the + or OK . In the display, “KON” and the number of the previously set system layout appear. In order to change the system layout, press the OK button. When the symbol appears in the display, the system layout can be changed. Note! Press and hold the + button for five seconds if system layout 1 has been preset. If layout 7 has been preset, press the – button. With layout 2, 3, 4, 5 or 6, press and hold either the + or – button for five seconds. The system layout can now be changed with the with the OK button. + or – ! button and the new layout can be saved Note! Mark the system layout which suits your solar energy system as follows: . ! Page 16 Configuration of system layouts 8.1. System layout 1 (1 collector array, 1 storage reservoir, 1 pump) Description of the system layout: The solar controller compares the temperature from collector sensor F1 (TC1) with the temperature from the storage reservoir sensor F4. If the measured temperature difference exceeds the switch-on temperature difference TDE1, which can be set here, the speed-controlled solar pump R1 is switched on and the storage reservoir is loaded. F1 R1 (F3) F4 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 70 °C 10 °C to 90 °C AE SPA1 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX1 for storage reservoir 1. Activation / deactivation of storage reservoir 1. System layout setting. 1 1 to 7 E3-1 / 13 SSP1 YES YES / no E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 Upper storage reservoir sensor F3 present, see section 5.5. Switch-on temperature difference between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference between F1 and F4 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump. 100% USW1 to 100% Selection 1 Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 17 Configuration of system layouts Page 18 Configuration of system layouts 8.2. System layout 2 (1 collector array, 2 storage reservoirs, 2 pumps) Description of the system layout: The solar controller compares the temperature from collector sensor F1 (TC1) with the temperatures from the storage reservoir sensors F4 and F6. If one of the measured temperature differences exceeds one of the switch-on temperature differences set here (TDE1 or TDE2), the corresponding storage reservoir is loaded by means of the respective speed-controlled solar pump R1 or R2. The selected first-priority storage reservoir (SPV) is loaded for as long as a loading precondition persists for this storage reservoir. Afterwards, the second-priority storage reservoir is loaded by means of batch loading. F1 R2 R1 (F3) F4 (F5) F6 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 Maximum loading temperature MAX1 for storage reservoir 1. 70 °C 10 °C to 90 °C AE MAX2 70 °C 10 °C to 90 °C AE SPA1 YES YES / no AE SPA2 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX2 for storage reservoir 2. Activation / deactivation of storage reservoir 1. Activation / deactivation of storage reservoir 2. System layout setting. 1 1 to 7 E3-1 / 3 SPV 1 0 to 2 E3-1 / 4 SLZ 15 min. 1 to 60 min. E3-1 / 5 SPZ 2 min. 1 to 60 min. E3-1 / 6 KAT 2 1 to 10 K E3-1 / 13 SSP1 YES YES / no E3-1 / 14 SSP2 Number of the first-priority storage reservoir (see section 9.1. Batch loading). Batch loading time (see section 9.1.). Batch pause time after batch loading (see section 9.1.). Limit for collector’s temperature increase in the batch pause time (see section 9.1.). Upper storage reservoir sensor F3 present (storage reservoir 1), see section 5.5. Upper storage reservoir sensor F5 present (storage reservoir 2), see section 5.5. YES YES / no Selection 2 Page 19 Configuration of system layouts Level Display Function Factory setting Range E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 3 TDE2 8K 1 K to 20 K E3-2 / 4 TDA2 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 100% USW1 to 100% E3-2 / 8 USW2 30% 30% to OSW2 E3-2 / 9 OSW2 Switch-on temperature difference for storage reservoir 1 between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 1 between F1 and F4 (not greater than switch-on temperature difference - 1 K). Switch-on temperature difference for storage reservoir 2 between F1 and F6 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 2 between F1 and F6 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump 1. Minimum switch-on duration for solar pump 2. Note: if the USW2 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump 2. 100% USW2 to 100% Selection Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 20 Configuration of system layouts 8.3. System layout 3 (1 collector array, 2 storage reservoirs, 1 pump, 1 three-way valve) Description of the system layout: The solar controller compares the temperature from collector sensor F1 (TC1) with the temperatures from the storage reservoir sensors F4 and F6. If one of the measured temperature differences exceeds one of the switch-on temperature differences set here (TDE1 or TDE2), the corresponding storage reservoir is loaded by means of the speed-controlled solar pump R1 and the three-way valve R2. The selected first-priority storage reservoir (SPV) is loaded for as long as a loading precondition persists for this storage reservoir. Afterwards, the second-priority storage reservoir is loaded by means of batch loading. F1 R1 R2 (F3) F4 (F5) F6 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 Maximum loading temperature MAX1 for storage reservoir 1. 70 °C 10 °C to 90 °C AE MAX2 70 °C 10 °C to 90 °C AE SPA1 YES YES / no AE SPA2 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX2 for storage reservoir 2. Activation / deactivation of storage reservoir 1. Activation / deactivation of storage reservoir 2. System layout setting. 1 1 to 7 E3-1 / 3 SPV Number of the first-priority storage reservoir (see section 9.1. Batch loading). 1 0 to 2 E3-1 / 4 SLZ 15 min. 1 to 60 min. E3-1 / 5 SPZ 2 min. 1 to 60 min. E3-1 / 6 KAT 2 1 to 10 K E3-1 / 13 SSP1 YES YES / no E3-1 / 14 SSP2 Batch loading time (see section 9.1.). Batch pause time after batch loading (see section 9.1.). Limit for collector’s temperature increase in the batch pause time (see section 9.1.). Upper storage reservoir sensor F3 present (storage reservoir 1), see section 5.5. Upper storage reservoir sensor F5 present (storage reservoir 2), see section 5.5. YES YES / no Selection 3 Page 21 Configuration of system layouts Level Display Function Factory setting Range E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 3 TDE2 8K 1 K to 20 K E3-2 / 4 TDA2 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 Switch-on temperature difference for storage reservoir 1 between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 1 between F1 and F4 (not greater than switch-on temperature difference - 1 K). Switch-on temperature difference for storage reservoir 2 between F1 and F6 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 2 between F1 and F6 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump. 100% USW1 to 100% Selection Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 22 Configuration of system layouts 8.4. System layout 4 (1 collector array, 2 storage reservoirs, 1 pump, 2 straight-way valves) Description of the system layout: The solar controller compares the temperature from collector sensor F1 (TC1) with the temperatures from the storage reservoir sensors F4 and F6. If one of the measured temperature differences exceeds one of the switch-on temperature differences set here (TDE1 or TDE2), the corresponding storage reservoir is loaded by means of the speed-controlled solar pump R1 and the corresponding straight-way valve R2 or R3. The selected firstpriority storage reservoir (SPV) is loaded for as long as a loading precondition persists for this storage reservoir. Afterwards, the second-priority storage reservoir is loaded by means of batch loading. F1 R1 R2 R3 (F3) F4 (F5) F6 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 Maximum loading temperature MAX1 for storage reservoir 1. 70 °C 10 °C to 90 °C AE MAX2 70 °C 10 °C to 90 °C AE SPA1 YES YES / no AE SPA2 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX2 for storage reservoir 2. Activation / deactivation of storage reservoir 1. Activation / deactivation of storage reservoir 2. System layout setting. 1 1 to 7 E3-1 / 2 PL no YES / no E3-1 / 3 SPV 1 0 to 2 E3-1 / 4 SLZ 15 min. 1 to 60 min. E3-1 / 5 SPZ 2 min. 1 to 60 min. E3-1 / 6 KAT 2 1 to 10 K E3-1 / 13 SSP1 YES YES / no E3-1 / 14 SSP2 Activation of parallel loading of two storage reservoirs (see section 9.2. Parallel loading). Number of the first-priority storage reservoir (see section 9.1. Batch loading). Batch loading time (see section 9.1.). Batch pause time after batch loading (see section 9.1.). Limit for collector’s temperature increase in the batch pause time (see section 9.1.). Upper storage reservoir sensor F3 present (storage reservoir 1), see section 5.5. Upper storage reservoir sensor F5 present (storage reservoir 2), see section 5.5. YES YES / no Selection 4 Page 23 Configuration of system layouts Level Display Function Factory setting Range E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 3 TDE2 8K 1 K to 20 K E3-2 / 4 TDA2 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 Switch-on temperature difference for storage reservoir 1 between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 1 between F1 and F4 (not greater than switch-on temperature difference - 1 K). Switch-on temperature difference for storage reservoir 2 between F1 and F6 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 2 between F1 and F6 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump. 100% USW1 to 100% Selection Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 24 Configuration of system layouts 8.5. System layout 5 (2 collector arrays, 1 storage reservoir, 2 pumps) Description of the system layout: The solar controller compares the temperatures from collector sensors F1 (TC1) and F2 (TC2) with the temperature from the storage reservoir sensor F4. If the measured temperature difference exceeds the switch-on temperature difference TDE1, the corresponding speed-controlled solar pump R1 or R2 is switched on and the storage reservoir is loaded. F1 F2 R1 R2 (F3) F4 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 70 °C 10 °C to 90 °C AE SPA1 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX1 for storage reservoir 1. Activation / deactivation of storage reservoir 1. System layout setting. 1 1 to 7 E3-1 / 13 SSP1 YES YES / no E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 100% USW1 to 100% E3-2 / 8 USW2 Upper storage reservoir sensor F3 present (storage reservoir 1), see section 5.5. Switch-on temperature difference for storage reservoir 1 between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 1 between F1 and F4 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump 1. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump 1. Minimum switch-on duration for solar pump 2. Note: if the USW2 value is set to 100%, the speed control function is deactivated! 30% 30% to OSW2 Selection 5 Page 25 Configuration of system layouts Level Display Function Factory setting Range E3-2 / 9 OSW2 Maximum switch-on duration for solar pump 2. 100% USW2 to 100% Selection Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 26 Configuration of system layouts 8.6. System layout 6 (2 collector arrays, 2 storage reservoirs, 2 pumps, 2 straight-way valves) Description of the system layout: The solar controller compares the temperatures from collector sensors F1 (TC1) and F2 (TC2) with the temperatures from the storage reservoir sensors F4 and F6. If one of the measured temperature differences exceeds one of the switch-on temperature differences set here (TDE1 or TDE2), the corresponding storage reservoir is loaded by means of the corresponding speed-controlled solar pump R1 or R2 and the corresponding straight-way valve R3 or R4. The selected firstpriority storage reservoir (SPV) is loaded for as long as a loading precondition persists for this storage reservoir. Afterwards, the second-priority storage reservoir is loaded by means of batch loading. F1 F2 R2 R1 R3 R4 (F3) (F5) F4 F6 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 Maximum loading temperature MAX1 for storage reservoir 1. 70 °C 10 °C to 90 °C AE MAX2 70 °C 10 °C to 90 °C AE SPA1 YES YES / no AE SPA2 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX2 for storage reservoir 2. Activation / deactivation of storage reservoir 1. Activation / deactivation of storage reservoir 2. System layout setting. 1 1 to 7 E3-1 / 2 PL no YES / no E3-1 / 3 SPV 1 0 to 2 E3-1 / 4 SLZ 15 min. 1 to 60 min. E3-1 / 5 SPZ 2 min. 1 to 60 min. E3-1 / 6 KAT 2 1 to 10 K E3-1 / 13 SSP1 YES YES / no E3-1 / 14 SSP2 Activation of parallel loading of two storage reservoirs (see section 9.2. Parallel loading). Number of the first-priority storage reservoir (see section 9.1. Batch loading). Batch loading time (see section 9.1.). Batch pause time after batch loading (see section 9.1.). Limit for collector’s temperature increase in the batch pause time (see section 9.1.). Upper storage reservoir sensor F3 present (storage reservoir 1), see section 5.5. Upper storage reservoir sensor F5 present (storage reservoir 2), see section 5.5. YES YES / no Selection 6 Page 27 Configuration of system layouts Level Display Function Factory setting Range E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 3 TDE2 8K 1 K to 20 K E3-2 / 4 TDA2 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 100% USW1 to 100% E3-2 / 8 USW2 30% 30% to OSW2 E3-2 / 9 OSW2 Switch-on temperature difference for storage reservoir 1 between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 1 between F1 and F4 (not greater than switch-on temperature difference - 1 K). Switch-on temperature difference for storage reservoir 2 between F1 and F6 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 2 between F1 and F6 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump. Minimum switch-on duration for solar pump 2. Note: if the USW2 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump 2. 100% USW2 to 100% Selection Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 28 Configuration of system layouts 8.7. System layout 7 (2 collector arrays, 2 storage reservoirs, 2 pumps, 1 three-way valve) Description of the system layout: The solar controller compares the temperatures from collector sensors F1 (TC1) and F2 (TC2) with the temperatures from the storage reservoir sensors F4 and F6. If one of the measured temperature differences exceeds one of the switch-on temperature differences set here (TDE1 or TDE2), the corresponding storage reservoir is loaded by means of the respective speed-controlled solar pump R1 or R2 and the threeway valve R3. The selected first-priority storage reservoir is loaded for as long as a loading precondition persists for this storage reservoir. Afterwards, the second-priority storage reservoir is loaded by means of batch loading. F1 F2 R2 R1 R3 (F5) (F3) F4 F6 The following settings are possible in this system layout: Level Display Function Factory setting Range AE MAX1 Maximum loading temperature MAX1 for storage reservoir 1. 70 °C 10 °C to 90 °C AE MAX2 70 °C 10 °C to 90 °C AE SPA1 YES YES / no AE SPA2 YES YES / no E3-1 / 1 KON Maximum loading temperature MAX2 for storage reservoir 2. Activation / deactivation of storage reservoir 1. Activation / deactivation of storage reservoir 2. System layout setting. 1 1 to 7 E3-1 / 3 SPV 1 0 to 2 E3-1 / 4 SLZ 15 min. 1 to 60 min. E3-1 / 5 SPZ 2 min. 1 to 60 min. E3-1 / 6 KAT 2 1 to 10 K E3-1 / 13 SSP1 YES YES / no E3-1 / 14 SSP2 Number of the first-priority storage reservoir (see section 9.1. Batch loading). Batch loading time (see section 9.1.). Batch pause time after batch loading (see section 9.1.). Limit for collector’s temperature increase in the batch pause time (see section 9.1.). Upper storage reservoir sensor F3 present (storage reservoir 1), see section 5.5. Upper storage reservoir sensor F5 present (storage reservoir 2), see section 5.5. YES YES / no Selection 7 Page 29 Configuration of system layouts Level Display Function Factory setting Range E3-2 / 1 TDE1 8K 1 K to 20 K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 3 TDE2 8K 1 K to 20 K E3-2 / 4 TDA2 4K 1 K to 20 K E3-2 / 6 USW1 30% 30% to OSW1 E3-2 / 7 OSW1 100% USW1 to 100% E3-2 / 8 USW2 30% 30% to OSW2 E3-2 / 9 OSW2 Switch-on temperature difference for storage reservoir 1 between F1 and F4 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 1 between F1 and F4 (not greater than switch-on temperature difference - 1 K). Switch-on temperature difference for storage reservoir 2 between F1 and F6 (not less than switch-off temperature difference + 1 K). Switch-off temperature difference for storage reservoir 2 between F1 and F6 (not greater than switch-on temperature difference - 1 K). Minimum switch-on duration for solar pump. Note: if the USW1 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump. Minimum switch-on duration for solar pump 2. Note: if the USW2 value is set to 100%, the speed control function is deactivated! Maximum switch-on duration for solar pump 2. 100% USW2 to 100% Selection Additional functions: See the overviews in section 5.3. Possible additional functions, section 5.4. Relay connector assignment and section 5.5. Sensor connector assignment. For detailed descriptions of the individual additional functions, see section 10. Setting the additional functions. Page 30 Batch loading, parallel loading and pump blockage protection 9. Batch loading, parallel loading and pump blockage protection 9.1. Batch loading Either storage reservoir 1 or storage reservoir 2 is prioritised for loading. When the first-priority storage reservoir’s loading preconditions are no longer met, the second-priority storage reservoir is loaded for a definable batch loading time (SLZ, batch loading duration in minutes). In the subsequent definable batch pause time (SPZ, duration of a pause between two batch loading sessions in minutes), the possibility of loading the first-priority storage reservoir is checked on the basis of the collector’s temperature increase. If a loading precondition for the first-priority storage reservoir is met, loading of this storage reservoir is resumed. SPV = 0: no batch loading SPV = 1 or 2: number of the storage reservoir prioritised for loading (batch loading active) 9.2. Parallel loading With parallel loading, speed control only takes effect when just one storage reservoir is being loaded. If both storage reservoirs are being loaded in parallel, the switch-on duration ED is set to 100% (no speed control). 9.3. Pump blockage protection If the pumps have been deactivated for a long time, there is a risk that they will block when reactivated, due to accumulated dirt or limescale. In order to prevent such blockages, the pumps are switched on for 10 seconds at a certain time each day. Page 31 Setting the additional functions 10. Setting the additional functions ! Note! Mark the additional functions which you have selected, as follows: . 10.1. Additional function: hot water backup heating Temperature-based and time-based backup heating of storage reservoir 1 or 2 from another energy source. The storage reservoir for which backup heating is to be used, is defined by the setting SNH. The solar controller compares the temperature from storage reservoir sensor F3 / F5 (must be installed) with the target value NHT, which is set on the user level. If the measured temperature is below the target value and if switching-time channel 1 is activated, the low-voltage relay is switched on. F1 R1 F3 F4 Additional function is shown with system layout 1 Level Display Function Factory setting Range AE NHT 40 °C 10 °C to 90 °C E3-1 / 7 SNH 1 1 to 2 E3-1 / 8 SNR 0 0 to 4 E3-2 / 5 NHD 5K 1 K to 30 K CH1 NHZ Minimum temperature for the storage reservoir. In the event of a temperature below this value, and if the switching-time channel is switched accordingly, backup heating occurs. Selection of storage reservoir for which backup heating is to be used (only in systems with multiple storage reservoirs). Selection of additional relay for hot water backup heating (e.g. electric heating rod). This switches in parallel to the NVR relay. Only relays which are still available can be used. Backup heating temperature difference. End value for storage reservoir reloading. Deactivation / activation of the hot water backup heating function via switching-time channel 1. Selection Page 32 Setting the additional functions 10.2. Additional function: anti-Legionella The overturn pump for the anti-Legionella function is controlled according to temperature (60 °C) and time (switching-time channel 2). If the preconditions for the anti-Legionella function are met, the overturn pump R4 overturns the water in the storage reservoir until a temperature of at least 60 °C has been measured at storage reservoir sensor F4 / F6 for at least 30 minutes. The preconditions for execution of the anti-Legionella function are as follows: 1. Switching times have been programmed for switching-time channel 2 (the function is only enabled at these times). 2. The temperature F4 / F6 (according to the setting SNH) has consistently remained above 60 °C since midnight. In order for activation of the anti-Legionella function to be possible, hot water backup heating must be activated at the same time! With the anti-Legionella function, backup heating is activated via activation of the NVR relay if necessary. Level Display Function E3-1 / 9 ALR CH2 ANTI Selection of relay for the overturn pump. 0: no relay allocated (function is not enabled) 1 to 4: relay is allocated (function is enabled) Activation / deactivation of the anti-Legionella function via switching-time channel 2. Factory setting 0 F1 R1 F3 R4 F4 Additional function is shown with system layout 1 Range 0 to 4 Selection Page 33 Setting the additional functions 10.3. Additional function: heating support The storage reservoir supports room heating by increasing the temperature of the heating return line. The solar controller compares the temperature from STX (a storage reservoir sensor which you are to select) with the temperature from heating return sensor F7. If the measured temperature difference exceeds the switch-on temperature difference VDE, which is set here, the switching valve R4 is activated and the heating return is heated by the storage reservoir. F1 R1 F7 (F3) F8 R4 F4 Additional function is shown with system layout 1 Level Display Function Factory setting Range Selection E3-1 / 10 STX 0 0 to 8 E3-1 / 11 VDE3 15 K 1 K to 20 K E3-1 / 12 VDA3 Selection of storage reservoir sensor for temperature comparison with F7. 0: no sensor allocated (function is not enabled) 1 to 8: sensor is allocated (function is enabled) Switch-on temperature difference (not less than switchoff temperature difference 1 K). Switch-off temperature difference (not greater than switch-on temperature difference - 1 K). 5K 1 K to 20 K 10.4. Additional function: second collector sensor For systems hydraulically connected in series (e.g. systems with two collectors with east / west orientation), a second collector sensor can be selected. The controller always acts according to the higher of the two collector temperature measurements. F1 F2 R1 (F3) F4 Additional function is shown with system layout 1 Level Display Function E3-1 / 15 TC2 Second collector sensor present. Factory setting no Range YES / no Selection Page 34 Setting the additional functions 10.5. Additional function: solar sensor The solar sensor measures the solar irradiation. If this falls below the minimum solar radiation value SSG, which is set here, the solar energy system is switched off (hysteresis: 20 W/m²). Solar sensor 1 2 3 Solar controller F4 F3 18 F2 F1 20 21 19 GND e-Bus +12V eBus 22 23 24 25 e.g.F2 DANGER Danger of electrocution! Every time the terminal cover is opened, the controller is to be disconnected from the power supply beforehand! Ensure that it cannot be reactivated! The type of current (alternating current) and the voltage must match the specifications in the connection diagram. Connect the controller as shown in the connection diagram. Level Display Function E3-1 / 16 SSE E3-1 / 17 SSG Selection of the solar sensor. 0: no sensor allocated (function is not enabled) 1 to 8: sensor is allocated (function is enabled) Minimum solar radiation value. Factory setting 0 240 W/m² Range Selection 0 to 8 20 W/m² to 1020 W/m² 10.6. Additional function: low flow In order to optimise the loading process, loading of the selected storage reservoir is only enabled once the collector temperature TCS (which is set here) is reached. When selecting this function, it is important to ensure that the loading pumps’ minimum speeds are set to values below 100%, i.e. that speed control is possible. Level Display Function E3-3 / 1 LFF E3-3 / 2 TCS Activation of low-flow function for storage reservoir 1 or 2. Collector temperature which enables loading of the selected storage reservoir. Factory setting 0 Range 0 to 2 65 °C 10 °C to 90 °C Selection Page 35 Setting the additional functions 10.7. Additional function: low-flow for stratified storage reservoir Storage reservoir loading already begins when the switch-on temperature difference TDE is exceeded. The loading pump is operated at the minimum speed USW until the set collector temperature TCS is exceeded, at which point speed control begins. Level Display Function E3-3 / 1 LFF E3-3 / 2 TCS E3-3 / 3 FTS Activation of low-flow function for storage reservoir 1 or 2. Collector temperature which enables loading of the selected storage reservoir. Activation o low-flow function for stratified storage reservoir. Factory setting 0 Range 0 to 2 65 °C 10 °C to 90 °C no YES / no Selection 10.8. Additional function: collector monitoring / tube function The collector’s temperature is monitored. If the measured temperature exceeds the value TCW (which is set here) and if the length of time defined by the PAUS setting has passed without the solar pump operating, the solar pump is switched on for the length of time defined by the PAN setting. This function is controlled via switching-time channel 6. Level Display Function Factory setting no E3-3 / 4 CW E3-3 / 5 TCW Activation of the collector monitoring function. Minimum collector temperature during monitoring. E3-3 / 6 PAN E3-3 / 7 CH6 Range YES / no 35 °C 10 °C to 90 °C Solar pump’s runtime. 10 sec. 10 sec. to 60 sec. PAUS Solar pump’s idle time. 60 min. 10 min. to 60 min. CW Deactivation / activation of the collector monitoring function / tube function via switching-time channel 6. Selection Page 36 Setting the additional functions 10.9. Additional function: yield calculation The yield of the solar energy system can be calculated with or without a volume flow meter: 1. For yield calculation without a volume flow meter, the control value USW, which represents the loading pump’s minimum speed, must be set to 100%. The yield values are then calculated on the basis of the fluid flow rate setting. 2. For yield calculation with an additional paddle-wheel volume flow meter with 1 pulse per litre and a temperature sensor in the return line, the amount of heat fed into the storage reservoir by the solar energy system is calculated. The yield display is enabled if the volume flow meter is registered on level E3-4 / 4 and a sensor is allocated. Yield calculation is enabled on level E3-4 / 1, which is allocated a sensor. Level Display Function E3-4 / 1 STR E3-4 / 2 STC E3-4 / 3 UBT E3-4 / 4 VSA E3-4 / 5 FDS Selection of the sensor for the solar return temperature. 0: no sensor allocated (function is not enabled) 1 to 8: sensor is allocated (function is enabled) Selection of the sensor for the collector temperature (for multicollector systems or a second collector sensor). 0: no sensor allocated 1 to 8: sensor is allocated System’s lowest operating temperature. Registration of the volume flow meter / allocation of a sensor for the volume flow meter. 0: no sensor allocated 1 to 8: sensor is allocated Fluid flow rate (setting at the taco setter) as substitute value if no volume flow meter is connected. Factory setting 0 Range 0 to 8 0 0 to 8 -28 °C -50 °C to 0 °C 0 0 to 8 240 l/h 30 l/h to 6000 l/h Selection Page 37 Setting the additional functions 10.10. Additional function: bypass If the switch-on temperature difference TDE4 between F8 and F4 / F6 is reached, the switching valve (bypass valve) R3 / R4 switches on and the storage reservoir is loaded. F1 R1 F8 R3 (F3) F4 Additional function is shown with system layout 1 Level Display Function E3-5 / 1 BPF E3-5 / 3 TDE4 E3-5 / 4 TDA4 Activation of the bypass function. Switch-on temperature difference for bypass valve (not less than switch-off temperature difference - 1 K). Switch-off temperature difference for bypass valve (not greater than switch-on temperature difference - 1 K). Factory setting no Range YES / no 8K 1 K to 20 K 2K 1 K to 20 K Selection Page 38 Setting the additional functions 10.11. Additional function: external heat exchanger If the switch-on temperature difference TDE4 between F8 and F4 / F6 is reached, the heat exchanger pump R3 / R4 switches on and the storage reservoir is loaded. F1 R1 F8 R3 (F3) F4 Additional function is shown with system layout 1 Level Display Function E3-5 / 2 WTF E3-5 / 3 TDE4 E3-5 / 4 TDA4 E3-5 / 5 USW3 or USW4 USW3 or USW4 Activation of the heat exchanger function. Switch-on temperature difference for heat exchanger pump (not less than switch-off temperature difference - 1 K). Switch-off temperature difference for heat exchanger pump (not greater than switchon temperature difference 1 K). Minimum speed of the heat exchanger pump. E3-5 / 6 Maximum speed of the heat exchanger pump. Factory setting no Range YES / no 8K 1 K to 20 K 2K 1 K to 20 K 30% 30% to OSW 100% USW to 60% Selection 10.12. Additional function: emergency collector switch-off If collector temperature F1 or F2 exceeds the maximum value NOT (which is set here) for longer than 5 minutes, the corresponding solar pump is switched off and will not resume operation until the respective collector temperature has fallen below NOT - 10 K. Level Display Function E3-6 / 1 NOT Emergency collector switch-off Factory setting 110 °C Range 90 °C to 127 °C Selection Page 39 Setting the additional functions 10.13. Additional function: collector safety If the collector temperature exceeds the maximum value TCM (which is set here), all storage reservoirs shall be loaded until the emergency storage reservoir switch-off temperature is reached (fixed value: 90 °C). Level Display Function E3-6 / 2 KSF E3-6 / 3 TCM Activation of the collector safety function. Maximum temperature for collector (above which the collector safety function is activated automatically). Factory setting YES Range YES / no 90 °C 10 °C to 127 °C Selection 10.14. Additional function: storage reservoir safety If a storage reservoir temperature (F3 / F5) exceeds the maximum storage reservoir loading temperature MAX (which is set on the user level) by 2 K, heat is dissipated out of the storage reservoirs (e.g. into the heating system). Level Display Function E3-6 / 4 SSF Selection of relay for the storage reservoir safety function. 0: no relay allocated (function is not enabled) 1 to 4: relay is allocated (function is enabled) Factory setting 0 Range Selection 0 to 4 10.15. Additional function: collector frost protection If the collector temperature falls below the frost protection temperature of +2 °C, the solar pump is activated until the collector has been heated to +5 °C by the storage reservoir water. Level Display Function Factory setting Range E3-6 / 5 FSF Activation of the collector frost protection function. no YES / no Selection Page 40 Setting the additional functions 10.16. Additional function: thermostat, e.g. for activation of the circulation pump This function is controlled via switching-time channel 4. If no switching time is set for this channel, the function is constantly active. The sensor input and relay output (NVR relay also possible) are freely selectable. F1 R1 F3 F4 + - F7 WW R4 ZP KW Additional function is shown with system layout 1 Level Display Function E3-7 / 1 STH E3-7 / 2 RTH E3-7 / 3 ETH E3-7 / 4 ATH CH4 TH Selection of sensor for the thermostat function. The number of any sensor which is still free is accentuated by flashing underscore lines. If the selected sensor is already assigned to another function, the corresponding number is displayed within brackets. 0: no sensor allocated (function is not enabled) 1 to 8: sensor is allocated (function is enabled) Allocation of relay for the thermostat function. Any relay can be selected. If the selected relay is already assigned, the functions are combined in an OR relationship. Switch-on temperature for the thermostat function. Switch-off temperature for the thermostat function. Deactivation / activation of the thermostat function via switching-time channel 4. Factory setting 0 Range 0 to 8 0 0 to 5 40 °C 10 °C to 127 °C 45 °C 10 °C to 127 °C Selection Page 41 Setting the additional functions 10.17. Additional function: temperature comparison Sensor inputs and relay outputs (NVR relay also possible) can be freely selected for an additional temperature comparison function. This function is controlled via switching-time channel 5. If no switching time is set here, the function is constantly active. Level Display Function E3-8 / 1 VSA E3-8 / 2 VSB E3-8 / 3 VR E3-8 / 4 VDE E3-8 / 5 VDA CH5 TV Selection of the first sensor input. 0: no sensor allocated (function is not enabled) 1 to 8: sensor is allocated (function is enabled) The number of any sensor which is still free is accentuated by flashing underscore lines. If the selected sensor is already assigned to another function, the corresponding number is displayed within brackets. Selection of the second sensor input (see above). Selection of the relay output. Any relay can be selected. If the selected relay is already assigned, the functions are combined in an OR relationship. Switch-on temperature difference for the temperature comparison function (cannot be set to less than VDA + 1 K). Switch-off temperature difference for the temperature comparison function (cannot be set to greater than VDE - 1 K). Deactivation / activation of the temperature comparison function via switching-time channel 5. Factory setting 0 Range 0 to 8 0 0 to 8 0 0 to 5 2K 1 K to 20 K 1K 1 K to 20 K Selection Page 42 Setting the additional functions 10.18. Additional function: hot water overturn in storage reservoir If the switch-on temperature difference WUH between the hot water connection sensor (e.g. F8) and the upper storage reservoir sensor (e.g. F7) is reached and the hot water temperature at sensor F8 is below the target value + 2 K, the speed-controlled overturn pump R2/3/4 switches on and the upper part of the storage reservoir is overturned. The day target value / night target value is switched via switching-time channel 3. Hot water overturn can only be activated if a semiconductor relay is available. F1 R1 Reloading F7 (F3) R4 F8 Hot water F4 Heating s upport Additional function is shown with system layout 1 Level Display Function E3-9 / 1 WUR E3-9 / 2 WUS E3-9 / 3 WUSo E3-9 / 4 WUH E3-9 / 5 TUT E3-9 / 6 TUN E3-9 / 7 USW2 or USW3 or USW4 USW2 or USW3 or USW4 WWU Allocation of relay for the overturn pump. Only semiconductor relays which are still available can be used. Selection of sensor for the hot water connection. Selection of sensor for the uppermost storage reservoir temperature. Hysteresis value between WUSo and WUS. Hot water target value for daytime operation. Hot water target value for nighttime operation. Minimum speed of the overturn pump. E3-9 / 8 CH3 Maximum speed of the overturn pump. Deactivation / activation of the hot water overturn function in the storage reservoir via switching-time channel 3. Factory setting 0 Range 0, 2, 3, 4 3 1 to 8 8 1 to 8 5K 1 to 20 K 48 °C 10 to 90 °C 40 °C 10 to 90 °C 30% 30% to OSW 60% USW to 60% Selection Page 43 System information menu 11. System information menu Here, you can read information about the solar controller and define system settings. Level Display Function E3-10 / 1 SOF Display of software version. E3-10 / 2 HAR Display of hardware version. E3-10 / 3 LP Display of circuit board version. E3-10 / 4 LZU E3-10 / 5 VZU E3-10 / 6 SWZ E3-10 / 7 SER Date and time of the most recent adjustment made on the specialised mechanic level. Date and time of the secondmost-recent adjustment made on the specialised mechanic level. Automatic switching between summer time and winter time. Setting for service operation / normal operation. no: normal operation (all temperature filter functions are switched on) YES: service operation (all temperature filter functions are switched off) Factory setting Range YES YES / no no YES / no Selection 12. Settings for use of eBus Level Display Function Factory setting Range E3-11 / 1 BUS Activation of eBus. no YES / no E3-11 / 2 ASY Generation of the ASYN sign. no YES / no E3-11 / 3 PZK Enabling of time-division multiplexing based on priority classes (PKZM). no YES / no Selection Page 44 Overview of all settings 13. Overview of all settings Level Display Function Factory setting Range AE MAX1 Maximum loading temperature MAX1 for storage reservoir 1. 70 °C 10 °C to 90 °C AE MAX2 70 °C 10 °C to 90 °C AE SPA1 Maximum loading temperature MAX2 for storage reservoir 2. Activation / deactivation of storage reservoir 1. YES YES / no AE SPA2 Activation / deactivation of storage reservoir 2. YES YES / no AE NHT Minimum temperature for the storage reservoir. 40 °C 10 °C to 90 °C E3-1 / 1 E3-1 / 2 KON PL 1 no 1 to 7 YES / no E3-1 / 3 SPV Layout number setting. Activation of parallel loading of two storage reservoirs. Number of the first-priority storage reservoir. 1 0 to 2 E3-1 / 4 SLZ Batch loading time. 15 min. 1 to 60 min. E3-1 / 5 SPZ Batch pause time after batch loading. 2 min. 1 to 60 min. E3-1 / 6 KAT Limit for collector’s temperature increase. 2 1 to 10 K E3-1 / 7 SNH 1 1 to 2 E3-1 / 8 SNR 0 0 to 4 0 0 to 4 0 0 to 8 E3-1 / 9 ALR E3-1 / 10 STX E3-1 / 11 VDE3 Selection of the storage reservoir for which backup heating is to be used. Selection of additional relay for hot water backup heating. Selection of relay for the overturn pump. Selection of storage reservoir sensor for temperature comparison with F7. Switch-on temperature difference. 15 K 1 K to 20 K E3-1 / 12 VDA3 Switch-off temperature difference. 5K 1 K to 20 K E3-1 / 13 SSP1 Upper storage reservoir sensor F3 present. YES YES / no E3-1 / 14 SSP2 Upper storage reservoir sensor F5 present. YES YES / no E3-1 / 15 TC2 Second collector sensor present. no YES / no E3-1 / 16 SSE 0 0 to 8 E3-1 / 17 SSG Selection of the solar sensor. Minimum solar radiation value. 240 W/m² E3-2 / 1 TDE1 8K E3-2 / 2 TDA1 4K 1 K to 20 K E3-2 / 3 TDE2 8K 1 K to 20 K E3-2 / 4 TDA2 Switch-on temperature difference between F1 and F4. Switch-off temperature difference between F1 and F4. Switch-on temperature difference for storage reservoir 2 between F1 and F6. Switch-off temperature difference for storage reservoir 2 between F1 and F6. 20 W/m² to 1020 W/m² 1 K to 20 K 4K 1 K to 20 K Page 45 Overview of all settings Level E3-2 / 5 Display NHD Function Factory setting 5K Range E3-2 / 6 USW1 Backup heating temperature difference. End value for storage reservoir reloading. Minimum switch-on duration for solar pump. 1 K to 30 K 30% 30% to OSW1 E3-2 / 7 OSW1 Maximum switch-on duration for solar pump. 100% USW1 to 100% E3-2 / 8 USW2 Minimum switch-on duration for solar pump 2. 30% 30% to OSW2 E3-2 / 9 OSW2 Maximum switch-on duration for solar pump 2. 100% E3-3 / 1 LFF E3-3 / 2 TCS E3-3 / 3 FTS E3-3 / 4 CW Activation of low-flow function for storage reservoir 0 1 or 2. Collector temperature which enables loading of the 65 °C selected storage reservoir. no Low-flow function for stratified storage reservoir. no Activation of the collector monitoring function. E3-3 / 5 TCW E3-3 / 6 PAN E3-3 / 7 PAUS E3-4 / 1 STR E3-4 / 2 STC E3-4 / 3 UBT E3-4 / 4 VSA E3-4 / 5 FDS E3-5 / 1 E3-5 / 2 USW2 to 100% 0 to 2 10 °C to 90 °C YES / no YES / no Minimum collector temperature during monitoring. 35 °C 10 °C to 90 °C Solar pump’s runtime. 10 sec. 10 sec. to 60 sec. 10 min. to 60 min. BPF Solar pump’s idle time. Selection of the sensor for the solar return temperature. Selection of the sensor for the collector temperature (for multi-collector systems or a second collector sensor). System’s lowest operating temperature. Registration of the volume flow meter / allocation of a sensor for the volume flow meter. Fluid flow rate (setting at the taco setter) as substitute value if no volume flow meter is connected. Activation of the bypass function. 60 min. WTF Activation of the heat exchanger function. no YES / no E3-5 / 3 TDE4 8K 1 K to 20 K E3-5 / 4 TDA4 2K 1 K to 20 K E3-5 / 5 USW3 or USW4 USW3 or USW4 NOT Switch-on temperature difference for heat exchanger pump or bypass valve. Switch-off temperature difference for heat exchanger pump or bypass valve. Minimum speed of the heat exchanger pump. 30% 30% to OSW Maximum speed of the heat exchanger pump. 100% USW to 60% Emergency collector switch-off 110 °C 90 °C to 127 °C E3-5 / 6 E3-6 / 1 0 0 to 8 0 0 to 8 -28 °C -50 °C to 0 °C 0 0 to 8 240 l/h 30 l/h to 6000 l/h no YES / no Page 46 Overview of all settings Level E3-6 / 2 Display KSF E3-6 / 3 TCM Maximum temperature for collector. 90 °C 10 °C to 127 °C E3-6 / 4 SSF 0 0 to 4 E3-6 / 5 FSF Selection of relay for the storage reservoir safety function. Activation of the collector frost protection function. no YES / no E3-7 / 1 STH Selection of sensor for the thermostat function. 0 0 to 8 E3-7 / 2 RTH Allocation of relay for the thermostat function. 0 0 to 5 E3-7 / 3 ETH Switch-on temperature for the thermostat function. 40 °C 10 °C to 127 °C E3-7 / 4 ATH 10 °C to 127 °C E3-8 / 1 VSA 0 0 to 8 E3-8 / 2 VSB 0 0 to 8 E3-8 / 3 VR 0 0 to 5 E3-8 / 4 VDE 2K 1 K to 20 K E3-8 / 5 VDA 1K 1 K to 20 K E3-9 / 1 WUR Switch-off temperature for the thermostat function. Selection of the first sensor input for the temperature comparison function. Selection of the second sensor input for the temperature comparison function. Selection of the relay output for the temperature comparison function. Switch-on temperature difference for the temperature comparison function. Switch-off temperature difference for the temperature comparison function. Allocation of relay for the overturn pump. 45 °C 0 0, 2, 3, 4 E3-9 / 2 WUS 3 1 to 8 E3-9 / 3 WUSo 8 1 to 8 E3-9 / 4 WUH Selection of sensor for the hot water connection. Selection of sensor for the uppermost storage reservoir temperature. Hysteresis value between WUSo and WUS. 5K 1 to 20 K E3-9 / 5 TUT Hot water target value for daytime operation. 48 °C 10 to 90 °C E3-9 / 6 TUN 10 to 90 °C E3-9 / 7 Hot water target value for nighttime operation. Minimum speed of the overturn pump. 40 °C 30% 30% to OSW Maximum speed of the overturn pump. 60% USW to 60% E3-10 / 1 USW2 or USW3 or USW4 USW2 or USW3 or USW4 SOF E3-10 / 2 HAR E3-9 / 8 Function Activation of the collector safety function. Display of software version. Display of hardware version. Factory setting YES Range YES / no Page 47 Overview of all settings Level E3-10 / 3 Display LP E3-10 / 4 LZU E3-10 / 5 VZU E3-10 / 6 SWZ E3-10 / 7 SER E3-11 / 1 BUS E3-11 / 2 ASY E3-11 / 3 PZK Function Factory setting Display of circuit board version. Date and time of the most recent adjustment made on the specialised mechanic level. Date and time of the second-most-recent adjustment made on the specialised mechanic level. Automatic switching between summer time and YES winter time. Setting for service operation / normal operation. no Activation of eBus. no no: eBus is switched off YES: eBus is switched on Generation of the ASYN sign. no Enabling of time-division multiplexing based on no priority classes (PKZM). Range YES / no YES / no YES / no YES / no YES / no Page 48 Relay test submenu “REL” 14. Relay test submenu “REL” To navigate to the submenu for “manual adjustment” of relays, press + or – repeatedly until “REL” appears in the display. Call up the “relay test” sublevel by pressing the OK button. This causes all outputs (relays) to be switched off! The individual relays are selected by pressing + or – . Here, the relay number (1 to 5), the switching state (OFF, On or the control output in %) and the relay type (ELR / NVR) are displayed. Switching the ELR relays (numbers 1 to 4) on or off: Once the OK button has been pressed to select the relay, the symbol appears. The relay’s switching state can now be changed by pressing the buttons + and – . The relay’s switching state thus set will then remain in effect until the relay test level is abandoned. The following switching states can be set for the electronic load relays (ELR): On, OFF, 30% to 100% (depending on the settings USW and OSW). + + – – – Relay switches on; display = On. Relay remains switched on; display = control output 100% (depending on the setting OSW). Reduction of the control output in 1% steps until the value of the USW setting is reached. The control output can be increased in 1% steps with the + button. When the value of the USW setting, or else 30%, is reached, output jumps to 0%. Relay is switched off. Relay remains switched off; display = OFF. Switching the NVR relay (number 5) on or off: Once the relay has been selected and the OK button has been pressed, the symbol appears. The relay’s switching state can now be switched between On and OFF by pressing the buttons + and – Also here, the set switching state remains in effect until the relay test level is abandoned. . The start display is returned to automatically if 30 minutes pass in the relay test submenu without a button being pressed. The relay’s switching state then corresponds to the requirements of your solar energy system once again. 15. Visualisation and data logger You have the option of connecting PC-based visualisation software and a data logger, via eBus. For this purpose, you require the corresponding hardware and software, which you can obtain from the manufacturer. Page 49 Faults and troubleshooting 16. Faults and troubleshooting If your controller ever ceases to function properly, please check the following points: 1. Power supply: If anything appears in the display, there is no problem with the power supply. If nothing appears in the display, please check the mains voltage and the device fuse. 2. Sensors and sensor cables: If realistic temperatures are shown in the display (normal display and information level), there is no problem with the sensors or sensor cables. “H °C” appears in the event of a sensor interrupt and “L °C” in the event of a sensor short circuit. If the displayed temperatures are unrealistic, you can use an ohmmeter to check that the resistance values correspond to those in the following table: Pt1000 temperature sensor resistance table -20 °C 922 ohms 20 °C 1078 ohms 60 °C 1232 ohms 100 °C 1385 ohms -10 °C 961 ohms 30 °C 1117 ohms 70 °C 1271 ohms 110 °C 1423 ohms 0 °C 1000 ohms 40 °C 1155 ohms 80 °C 1309 ohms 120 °C 1461 ohms 10 °C 1039 ohms 50 °C 1194 ohms 90 °C 1347 ohms 130 °C 1498 ohms 3. Switching output: If the solar controller does not switch on the appropriate loading pump, please check the relay output by means of the relay test submenu. If it is not possible to remove the fault by means of the points mentioned above, the solar controller should be replaced. Danger of electrocution! The heating controller is to be assembled, electrically installed, commissioned, inspected and repaired by trained, competent and authorised persons (qualified electricians as per DIN VDE 1000-10 and BGV A3) only! Observe all applicable guidelines and regulations of the local electricity supplier! Before beginning installation or repair work on electrical equipment, always ensure complete disconnection from the mains and secure against reactivation! Do not work on live parts! DANGER Notes: Page 50 Notes: Page 51 Page 52 Art. no.: 14-03050-01/11 The descriptions, performance specifications and graphics in this manual are non-binding. Subject to technical alterations. This manual may not be duplicated, distributed, altered, passed on, translated into another language or used in any other way, without the express permission of the manufacturer. The content of this manual has been carefully checked. Nevertheless, the manufacturer cannot be held liable for any errors in this manual. Furthermore, if this commissioning manual or the operating manual is not adhered to, or is only partly adhered to, the manufacturer assumes no liability for any resulting damage. ">

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Key features
- Up to 2 collector arrays
- Up to 2 storage reservoirs
- Speed control of pumps
- Low-flow concept
- System diagnostics
- eBus communication
- Visualisation and data logger
Frequently asked questions
The LAMBERTI ELEKTRONIK LATHERM SOL MAXIMAL can handle up to two separate collector arrays.
It uses Pt1000 temperature sensors for accurate temperature readings.
Yes, the controller can manage up to two storage reservoirs.
The eBus interface allows remote data transfer and enables features like visualization and data logging.