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Installation and operating instructions EN

1. A Feeding the cable through the rear of the case gt Remove the plastic flaps amp from the rear side of the case using an appropriate tool ZA WARNING Risk of electrical shock and fire due to cables coming loose gt Install an external strain relief for the cables Feeding the cable through the lower side of the case gt Cut the left and right plastic flaps using an appropriate tool and break them out of the case gt Fasten cable at position with the provided plastic links 4 3 2 Connecting the cables gt Ifa 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 Each terminal may only be connected to a single connecting wire max 2 5 mm gt The terminal screws are approved for connection of cables as fol lows single wire solid x 2 5 mm fine strand with core end sleeves x 1 5 mm gt Only use the original temperature sens
2. 0h Sample display 2 sec Jj gt Pp Sample display Sample display 9 Fault finding The controller is a quality product conceived for years of continuous trouble free operation If a problem occurs the cause of the problem often lies not in the controller but in the peripheral components The fol lowing description of some causes of problems should help the installer and operator to isolate the problem so that the system can be repaired as quickly as possible and to avoid unnecessary costs Of course not all possible causes of problems can be listed here However here you will find the most common causes of problems that cover the majority of possible faults Only return the controller when you are absolutely sure that none of the problems listed below is responsible for the fault A DANGER Ww o Risk of death by electrocution gt All work on an open controller must be performed by professional personnel gt Remove the controller from the power supply before opening the case 9 1 Causes of problems Controller does not appear to function at all Secondary symptoms Display shows nothing No display illumination Possible cause Controller power supply is interrupted Procedure Check the controller power cable Check the fuse for the power supply e Check the fuse at the controller replace ment fuse is located in the
3. Thermostat Factory Adjustable Adjustable Comment setting down to up to max min Temperature controlled Switch on temperature 20 C 0 C 180 C The on and off values can be set independently of each other Switch off temperature 20 C 0 C 180 C Differential thermostat Factory Adjustable Adjustable Comment setting down to up to max min Temperature controlled Switch on temperature difference 6K Switch off 80K temperature difference 2K Switch off temperature difference Switch on temperature dif ference 2 K Maximum heat source temperature 100 C Minimum 180 C source temperature 2K 728 138 08 12 Minimum heat source temperature 0 C 0 C Maximum source tempera ture 2 K Temperature limit heat target 60 C 0 C 95 C Interval Factory Adjustable Adjustable Comment setting down to up to max min Interval time 15 min 10 min 60 min Test on time 5 sec 3 sec 30 sec Holiday function recooling Factory setting Adjustable down to min Adjustable up to max Minimum storage tank temperature Comment 35 C 0 C 95 C If possible the storage tank is cooled down to the defined minimum temperature at night 14 Notes 55 728138
4. Loading strategy of solar circuit pump R1 In the factory target tem perature control is chosen as the loading strategy for the storage tank B1 It can be adjusted or changed using the Parameters menu chapter 7 3 Parameters Loading strategy of solar circuit pump R2 It is not possible to select whether temperature difference control or target temperature control is to be used as the loading strategy Solar circuit pump R2 operates according to the switch on and switch off temperature difference parameter values Activating the system see chapter 7 1 Selecting a system Terminal layout A1 collector array B1 storage tank D1 wire bridge F1 external heat exchanger R1 storage tank loading pump R2 solar circuit pump T1 collector sensor T2 lower area of storage tank T3 sensor ext heat exchanger Display 1 2 Storage tank Display 1 2 1 Al B1 B2 D1 R1 R2 Wile T2 T w collector array storage tank 1 storage tank 2 wire bridge solar circuit pump 1 solar circuit pump 2 collector sensor sensor lower area of storage tank 1 sensor lower area of storage tank 2 EN 7 2 2 Systems with two storage tanks System 4 1 collector array 2 storage tanks intel ligent pump control Description of the solar function When the switch on temperature difference
5. 2 R1 max Ol Imp Q min Ol Imp Display 2 5 4 Flow rate AV choose the desired output SET press button to confirm gt T flashes in the display input for return temperature gt AV choose the desired output gt SET press button to confirm v Determining the flow rate for the connected solar circuit pumps P V press button gt The display for setting the min max flow rate appears gt SET press button gt The max value flashes in the display and the pump begins to run at maximum speed gt The flow rate value must now be read at the pump assembly s flow rate display gt AV enter the flow rate value gt SET press button to confirm gt The min value flashes in the display and the pump begins to run at minimum speed gt The flow rate value must now be read at the pump assembly s flow rate display gt AV enter the flow rate value gt SET press button to confirm NOTE e If other solar circuit pumps e g system with 2 storage tanks are connected to the controller the flow rate for these pumps must be determined and entered as described here fthe minimum pump speed in the Parameters menu or the pump level at the pump is changed at a later point in time the flow rate must be determined and set once more for more precise calculation of the heat quantity e If the collector is in a stagnant state pump starts are blocked in order to prevent damage A co
6. Switch off temperature 60 C Switch on temperature 2K 95 C 52 Solid fuel boiler Factory Adjustable Adjustable Comment setting down to up to max min Temperature controlled Switch on temperature difference 6K Switch off 20K temperature difference 2K Switch off temperature difference 3K OK Switch on temperature difference 2 K Maximum heat target temperature 60 C 0 C 150 C Minimum heat source temperature 50 C 30 C 95 C Quick charge Factory Adjustable Adjustable Comment setting downto min up to max Temperature controlled Switch on temperature 50 C 0 C 95 C The switch off temperature is adjusted according to the hysteresis Switch off temperature 52 C Switch on tem Switch on perature 2 K temperature 10K Heat quantity Factory Adjustable Adjustable Comment setting down to up to max min Glycol content 40 0 60 Flow rate value for recording flow rate without a flow sensor Flow rate value for maximum pump speed 0 99 The flow rate value for the maximum pump speed must be greater than the flow rate value for the minimum pump speed Flow rate value for minimum pump speed 0 99 The flow rate value for the maximum pump speed must be greater than the flow rate value for the minimum pump speed
7. Circulation 7 3 2 Back up heating 7 2 3 Solid fuel boiler 7 2 4 Quick charge 7 2 5 Heat quantity 7 2 6 Thermostat 7 2 7 Difference thermostat 7 2 8 Interval 7 2 9 Stagnation reduction 7 2 10 Holiday function recooling 7 2 11 Frost protection 7 2 12 Display storage tank top 7 2 13 An overview of the factory settings and the ranges of possible settings can be found in the table in chapter 13 3 Parameter values for func tions 7 2 1 Accessing a function Before making settings within a function you must perform the follow ing steps Selecting a function gt pomum gt SET press button for approx 2 sec up gt AV select the menu item Functions QO amp P gt SET open the submenu Functions gt AV select a function imme function Activating deactivating the function gt gt SET press button 9L gt The display for activating on or deactivating off the function Sed is shown gt SET press button for approx 2 sec um gt The function is activated or deactivated NOTE An information window is displayed if the function cannot be activated see chapter 10 Information windows Selecting an output gt V press button gt The display for setting the output appears gt SET press button gt Output flashes gt R gt AV choose the desired output gt SET press button to confirm Sample display 24 Display 2 1 Circulati
8. Heat quantities 8 Automatic operation 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 Other symbols provide information on the condition of the solar system The various symbols are displayed as soon as additional functions are activated or values exceed or fall below parameters The display message below shows all symbols simultaneously as an example In prac tice they appear in various combinations Symbol for solar circuit s switch on condition fulfilled Symbol for maximum collector temperature reached Symbol for the currently selected temperature sensor 4 Symbol for the solar circuit S Symbol for the storage tank Symbol off for deactivated storage tank Display of the current measured value such as temperature values and outputs operating hours Symbol for the activated frost protection function 9 G OG GO Symbol for the activated holiday recooling function Symbol max for maximum storage tank temperature reached Symbol for external heat exchanger Symbol for 3 way switching valve Symbol for pump 39 EN 8 1 Status display Switching the display screen gt AV press
9. T4 is reached the 3 way valve R2 returns to its initial state Water does not flow through the storage tank NOTE When no voltage is on the system the switching valve R2 must be set in such a manner that water does not flow through the storage tank Loading strategy of solar circuit pump R1 In the factory temperature differential control is chosen as the loading strategy for the storage tank B1 It can be adjusted or changed to target temperature control using the Parameters menu chapter 7 3 Parameters Activating the system see chapter 7 1 Selecting a system Terminal layout b System 3 1 collector array gt 1 storage tank with external heat exchanger Description of the solar function The solar circuit pump R2 is switched on as soon as the switch on temperature difference between the collec tor array A1 T1 and the storage tank B1 T2 is reached When the D switch off temperature difference or a safety limit is reached the solar circuit pump R2 switches off again The storage tank loading pump R1 is switched on as soon as the switch on temperature difference between the external heat exchanger F1 T3 and the storage tank B1 T2 is reached The storage tank is loaded until the switch off temperature difference between the external heat exchanger F1 T3 and the storage tank B1 T2 is reached or until a safety limit is reached
10. 2 12 2 3 storage tank emm 1 q 7 3 Parameters In the factory the controller is configured in such a manner that it can PRX ain be used in most applications without changes to these values All parameters can be modified to a certain extent to suit the individual requirements of the system If modifications are realised the operating data of the solar components used must be observed NOTE The parameter settings depend on the solar energy system chosen This means that not all parameter settings are available for all types of solar energy systems Display 3 Parameters The following parameters can be accessed and adjusted maximum temperature storage tank 1 storage tank 2 switch on temperature difference solar 1 solar 2 switch off temperature difference solar 1 solar 2 maximum collector temperature minimum collector temperature switch on temperature difference return increase switch off temperature difference return increase maximum temperature loading circuit 1 minimum temperature loading circuit 1 loading strategy storage tank 1 RPM control pump R1 7 3 1 Accessing and adjusting parameters 4 Accessing parameters gt SET press button for approx 2 sec gt AV select the menu item Parameters gt SET open the submenu Sample display maximum gt AV select a parameter temperature storage tank 1 Setting a paramet
11. ferent systems to choose from subdivided into 2 system groups System group 4 systems Chapter Systems with one System 1 1 collector array 1 storage tank storage tank System 2 1 collector array 1 storage tank heating return increase System 3 1 collector array 1 storage tank with external heat exchanger Systems with two System 4 1 collector array 2 storage tanks intelligent storage tanks pump control NOTE Upon selection of a new system the functions storage tank priority and parameters are automatically returned to their factory settings gt Check the settings again Feed 4 Selecting a system ae gt SET press button for approx 2 sec gt AV select the menu item Systems Display 1 gt SET open the submenu System groups Systems gt AV Select a system group gt SET press button to confirm 4 gt AV select a system gt SET press button to confirm gt In the display a small checkmark appears below the item Sample display number which confirms that the system is selected gt ESC exit the Systems menu item v Sample display Menu overview SET 2 sec Status display 1 storage tank systems 2 storage tanks systems 18 EN m u n T Factory Circulation Max temperature storage tank 1 Max temperature Back
12. on value flashes in the display gt AV set the on value gt SET press button to confirm gt The off value flashes after confirmation of the on value gt AV set the off value gt SET press button to confirm gt The settings are saved zu 4 Display 2 3 Solid fuel boiler 4 a o i Pi 6K LESK Display 2 3 3 on off 4 d min 50 C Un max 60 C Display 2 3 4 EN 7 2 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 the solid fuel boiler and the storage tank exceeds the on value the solid fuel boiler temperature is above the min value and the storage tank temperature is below the max value then the pump is switched on The pump runs until the temperature difference is lower than the off value the solid fuel boiler temperature falls below the min value or the storage tank tempera ture reaches the max value Allocating inputs and setting storage tank solid fuel boiler temperature and switch on switch off tempera ture difference V Functions submenu selected see Selecting a function chapter 7 2 1 v Solid fuel boiler activated see Activating a function chapter 7 2 1 v Outputs selected see Selecting an output chapter 7 2 1 gt V press button gt The display for setting the temper
13. which must be configured anew must be noted down in advance It is not possible to access storage prior The setting is not required with this due to blockage protection Ud El not available E CHA ity as the selected system only has one system storage tank 3 umes running In order to protect the pumps from me chanical seizure all pumps are switched on briefly once a day System recooling in progress Ho UES The holiday function is activated Storage tank is being recooled by the system Hygiene flushing circulation Ho System is conducting hygiene flushing of the circulation pipe Stagnation reduction is active Ho Stagnation reduction is activated System is operating at high temperature level Ho System stopped due to priority test 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 9 Solar circuit 3i running due to interval test Solar circuit is running due to interval test The collector s heat transfer fluid is be ing transported to the sensor 44 NN Thermal frost protection is activ
14. AV choose the heat source s input gt SET press button to confirm T flashes in the display temperature input for the heat target gt AV choose the heat source s input gt SET press button to confirm gt The on value flashes after confirmation of the heat target input gt AV set the on value gt SET press button to confirm gt The off value flashes after confirmation of the on value gt AV set the off value gt SET press button to confirm c The settings are saved Defining limits for the heat source gt V press button gt The display for setting the limits max min of the heat source appears gt SET press button gt max flashes in the display heat source s maximum value AV set the maximum value SET press button to confirm gt min heat source s minimum value flashes after confirmation of the maximum value AV set the minimum value SET press button to confirm c The settings are saved vv vv 728 138 08 12 31 Defining limits for the heat target gt V press button gt The display for setting the limit of the heat target appears gt gt SET press button Ue ses COTA gt max flashes in the display heat target s maximum value gt AV set the maximum value gt SET press button to confirm 7 2 9 Interval function gt Display 2 7 5 With some types of collector the collector s con
15. case The solar pump does not operate despite the fact that the switch on conditions are satisfied Secondary symptoms Possible cause Procedure The pump symbol in the display rotates Pump power supply is interrupted Pump has seized up Check the pump power cable e Check the fuse in the controller replacement fuse is located in the case e Get the pump working again replace if necessary The pump symbol in the display does not rotate The maximum storage tank temperature has been reached The maximum collector temperature has been reached n multi storage tank systems the system has stopped due to a priority test The minimum collector temperature has not been reached The maximum loading temperature has been reached Stagnation reduction activated Storage tank deactivated No fault The pump symbol in the display does not rotate The display illumination is red Atool symbol flashes in the display The operating switch is set to manual operation and the pump output is set to off Setthe operating switch to automatic operation The pump symbol in the display does not rotate The display illumination flashes red Short circuit or interruption of a temperature sensor On the controller request the current values from all connected temperature sensors Check all defective sensors and or sensor cable 42 The
16. 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 P1 Maximum temperature storage tank 1 switch on temperature difference 1 gt maximum collector temperature P5 Temperature differential control storage tank 1 lt switch off temperature difference 1 P6 Temperature differential control storage tank 1 lt switch off temperature difference 2 system with 2 collector arrays P8 Temperature differential control storage tank 3 lt switch off temperature difference 3 P9 Temperature differential control storage tank 1 5 K lt switch off temperature differ ence 1 system with external heat exchanger P10 Temperature differential control storage tank 1 5 K lt switch off temperature differ ence 2 system with 2 collector arrays and external heat exchanger P12 Target temperature control storage tank 1 lt minimum collector temperature PAIS Target temperature control storage tank 1 gt maximum collector temperature P 18 Target temperature control storage tank 1 5 K lt minimum collector temperature system with external heat exchanger P 19 Target temperature control storage tank 1 5 K gt maximum collector temperature system with external heat exchanger P22 Target temperature control storage tank 1 minimum tempe
17. function for measuring the quantity of heat RES This allows for instance to record the quantity of heat fed into the storage tank from the solar energy system To do this the tempera ture of the supply and return and the flow rate of the solar energy system must be recorded The flow rate can be approximately calcu lated by means of the pump speed Since the heat quantity depends on the proportion of glycol in the fluid this also is accounted for in the calculations From these values the controller determines the quantity of heat and shows this in the display Setting the flow rate determination and the glycol proportion v Functions submenu selected see Selecting a function chapter 7 2 1 v Heat quantity activated see Activating a function chapter 7 2 1 gt V press button Display 2 5 Heat quantity NE Glykol 4096 Display 2 5 2 Without flow sensor S CDs 9L EN gt The display for setting the glycol proportion appears gt SET press button gt Glycol proportion flashes in the display gt AV set the value gt SET press button to confirm gt The settings are saved Allocating inputs for temperature sensors gt V press button gt The display for setting the temperature inputs appears SET press button gt T flashes in the display input for supply temperature v v Display 2 5 3 hot cool
18. input 4 Temperature sensor Pt1000 polarity irrelevant 4 5 3 Connection of outputs R1 and R2 Output R1 Semiconductor relays TRIAC also suitable for RPM control max switching current see type plate CAUTION Avoiding damage and malfunctions gt 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 3 3 Setting the RPM control parameters R1 output 1 R2 output 2 D1 wire bridge 1 R BIBIsIs Pisas BEREIT po Mj D1 Output R2 switched output or potential free output 230 VAC switched output option 115 VAC via electromechanical relay max switching current see type plate wire bridge must be connected R1 output 1 R2 output 2 D1 wire bridge e Potential free output via electromechanical relay wire bridge must be removed e N DANGER 5 Risk of death by electrocution gt 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 R2 output 2 BUGGER Display 5 1 Deutsch Display 1 1 Storage tank Display 1 1 1 EN 5 Commissioning gt Make sure that the installation is finished completely and correctly and that the switc
19. tanks will be loaded equally Control When storage priority is activated the controller primarily attempts to load the first priority storage tank However if this is initially impossible due to the collector temperature being too low preference is given to loading the second priority storage tank if possible In this event the controller conducts regular tests every 30 minutes in order to check whether it has become possible to load the first priority storage tank This test can take several minutes as the collector array must heat up sufficiently On the basis of this heating process the controller predicts whether it is possible to load the first priority storage tank in a foresee able period of time When storage priority is deactivated the controller begins if possible to load the colder storage tank and loads it until its temperature exceeds that of the other storage tank Loading then switches to the other stor age tank Thus both storage tanks are heated equally in an alternating manner Accessing storage priority gt SET press button for approx 2 sec gt AV select the menu item Storage priority Activating deactivating storage priority gt SET press button gt The display for activating on or deactivating off storage prior ity appears gt SET press button for approx 2 sec gt Storage priority is activated or deactivated Specifying storage priority if storage priority is acti vated
20. the selected loading strategy the controller either attempts to comply with the defined temperature difference between collector and storage tank or to reach the defined target temperature as quickly as possible See chapter 7 3 2 for information regarding settings Target temperature control 60 C 0 C 95 C RPM control pump R1 Factory Adjustable Adjustable Description setting down to up to max min 50 30 100 If RPM control is activated the power at the control ler s output R1 is regulated by means of full wave packet control according to the measured tempera ture values and controller settings When RPM control is deactivated full power is present at the controller s output R1 See chapter 7 3 3 for information regarding settings 728 138 08 12 51 EN 13 3 Circulation Factory Adjustable down to min setting Temperature controlled Parameter values for functions Adjustable Comment up to max Switch on temperature 30 C 0 C Switch off temperature 2 K Switch off temperature 35 C Switch on 95 C temperature 2 K Pulse controlled Circulation time 2 min 1 min 10 min Wait time 10 min 0 min 60 min Back up heating Factory Adjustable down to min setting Temperature controlled Adjustable Comment up to max Switch on temperature 55 C 0 C Switch off tem perature 2 K
21. to any of the constructional fire safety measures present in the building gt Make sure that the permissible ambient conditions at the installation site are not exceeded see chap ter 13 Technical data gt Be sure to comply with the specified ingress protection gt Labels and markings applied in the factory may not be altered removed or rendered unreadable gt Before connecting the device make sure that the power supply matches the specifications on the type plate gt Make sure that all devices which are connected to the controller conform to the technical data of the controller P Secure the device against unintentional start up All work on an open controller must be performed with the mains supply disconnected gt Protect the controller against overloading and short circuiting v 1 3 Detecting faults gt Check the display regularly gt In case of faults isolate the cause see chapter 9 1 Causes of problems gt 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 gt Have trained professional personnel remedy the fault 1 4 Hot water temperature In order to limit the hot water temperature to 60 C at the outlets a hot water mixer must be installed 1 5 Disposal gt Dispose of the controller in accordance with the regional regulations 1 6 Exclusion of liability The manufacturer can neither mo
22. use Legal guarantee claims shall only be accepted if notification of the fault is provided immediately after it is discovered Guarantee claims are to be directed to the seller The seller must be informed before guarantee claims are proc essed For processing a guarantee claim an exact fault description and the invoice delivery note must be provided The seller can choose to fulfil the legal guarantee either by repair or replacement If the product can neither be repaired nor replaced or if this does not occur within a suitable period in spite of the specification of an extension period in writing by the customer the reduction in value caused by the fault shall be replaced or if this is not sufficient taking the interests of the end customer into consideration the con tract is cancelled Any further claims against the seller based on this legal guarantee obli gation in particular claims for damages due to lost profit loss of use or indirect damages are excluded unless liability is obligatory by law 13 Technical data Temperature difference controller Rated voltage 230 VAC 50 Hz system voltage optional 115 VAC 60 Hz Max own consumption lt 4W Inputs 4 T1 T4 temperature recording Pt1000 Outputs 2 R1 TRIAC output for RPM control max switching current 1 1 A AC R2 relay switched output max switching current 3 47 AAC Number of pre defined hydraulic 4 schemes Ing
23. 180 C When the maximum collector temperature is collector reached the solar circuit pump switches off When temperature the temperature drops to 3 K below the defined 20 K maximum value the solar circuit pump switches on again Minimum collector temperature Factory Adjustable Adjustable Description setting down to up to max min 0 C 0 C Maximum col Only when the minimum collector temperature is lector tempera reached and in consideration of the other switch ture 20 K on conditions does the solar circuit pump switch on This value can be increased up to 20 K below the defined maximum collector temperature Switch on temperature difference return increase Factory Adjustable Adjustable Description setting down to up to max min 6K Switch off 50K When the switch on temperature difference be temperature tween storage tank temperature and heating return of return temperature is reached the switching valve is acti 2K vated and water flows through the storage tank Switch off temperature difference return increase Factory Adjustable Adjustable Description setting down to up to max min 3K OK Switch on When the switch off temperature difference be temperature of tween storage tank temperature and heating return return 2 K temperature is reached the switching valve returns to its initial state The difference between the switch on temperature difference and the switch off temperature di
24. N Risk of injury and damage to the casing when drilling gt Do not use the casing as a drilling template Choose a suitable installation site Drill the upper fastening hole Screw in the screw Remove the upper casing Hang the case in the recess Mark the position of the lower fastening holes Remove the casing again Drill the lower fastening holes Rehang the case in the recess Screw the case firmly using the lower fastening holes and Mount the upper casing 2 vvvvvvvvvvyv wo o oO 0 rr E I I i i 0n i ine a is V J QLS _Oe_ D Va e LE i an E Y 4 3 Electrical connection A DANGER Risk of death by electrocution gt Remove the controller from the power supply before opening the case gt 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 4 3 1 Preparing the cable feed Depending on the type of installation the cables may enter the device through the rear of the case or the lower side of the case f m E T a
25. SOLARTHERMIE SOLAR THERMAL SOLAR TERMICO SOLAIRE THERMIQUE SOLARE TERMICO Installation and operating instructions Temperature difference controller 4 inputs 2 outputs These operating instructions are part of the product gt Read these operating instructions carefully before use gt keep them over the entire lifetime of the product gt and pass them on to any future owner or user of this product Index 1 Eire m 4 1 1 Proper usage tienen tnt rrenaseriR 4 1 2 Dangers during assembly commissioning 4 1 3 Detecting faults ssssssssssseeeeeneeeeeneeneeenneen 5 1 4 Hot water temperatt re eerie 5 ESTEA DIE oE T m 5 1 6 Exclusion ot liability eie Dee E seeds 5 2 Case OVeLVIeW piira a eE AE 6 3 3 1 3 2 3 3 Description Of symbols sse 7 4 Installatioti 5 creen cete 8 4 1 Opening closing the housing 8 42 Assembly eet ness p pe RISE OR DEREN RR 9 4 3 Electrical connection seeee 10 4 4 Dismantling ahd 45 Terminal plat ethernet brune unten 12 5 Commissionlng eoe eicere eire iadi 15 5 1 Setting the language eseee 15 5 2 Setting the system group i15 5 3 Setting the system sssessssssssseeeeeeeeneneeneeneenen 15 6 Modes of operation sees 16 6 1 OFF mode sssesseeeeeeeeeeenneeneennen rennen 16 0 2 Automatic mode xe e
26. apter 13 C99 Replacement fuses deeper NE fa B see chapter 13 Power connection Outputs Inputs Strain relief 3 About this manual 3 1 Applicability This manual describes the installation commissioning operation maintenance and dismantling of the temperature difference 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 3 2 Users Installation commissioning maintenance and dismantling of the controller may only be performed by trained professional personnel Before commissioning the controller must be professionally assembled and installed by professional personnel in accordance with the applicable regional and transregional regulations as well as the safety instructions and general instructions within these installation and operating instruc tions The professional personnel must be familiar with these operating instructions The controller is maintenance free Use the controller only after first thoro
27. ashes after confirmation of the on value gt AV set the off value gt SET press button to confirm c The settings are saved NOTE The on and off values must not be equal as otherwise the thermostat remains inactive Display 2 6 3 Display 2 7 Difference Thermostat Oe o cel lesa 9 es es as K K Display 2 7 3 on off Oe max 100 C min 0 C Display 2 7 4 EN 7 2 8 Difference thermostat function This function allows a controller output to be controlled depending on a predefined temperature difference When the temperature difference exceeds the defined on value the output is switched on until the temperature difference falls below the off value For optimised functionality unloading of the heat source can be limited to a particular temperature range and loading of the heat target can be limited to a maximum value Defining the inputs and the switching values V Functions submenu selected see Selecting a function chapter 7 2 1 v Differential thermostat activated see Activating a function chapter 7 2 1 v Outputs selected see Selecting an output chapter 7 2 1 gt V press button gt The display for setting the temperature inputs and the switching values appears gt SET press button gt T flashes in the display temperature input for the heat source gt
28. ature inputs and the switch on switch off temperature difference appears gt SET press button gt T flashes in the display storage tank temperature input gt AV choose the desired output gt SET press button to confirm gt T flashes in the display solid fuel boiler temperature input gt AV choose the desired output gt SET press button to confirm gt The on value flashes in the display gt AV set the on value gt SET press button to confirm gt The off value flashes after confirmation of the on value gt AV set the off value gt SET press button to confirm The settings are saved Programming the temperature limits of the solid fuel boiler and the storage tank gt V press button gt The display for setting the temperature limits for storage tank and solid fuel boiler appears gt SET press button gt max flashes in the display storage tank s maximum tempera ture value AV set the max value SET press button to confirm gt min flashes in the display solid fuel boilers minimum tempera ture value AV set the min value SET press button to confirm The settings are saved vv vv 728 138 08 12 27 7 2 5 Quick charge function gt This function attempts to load the upper part of the storage tank more Yo quickly by means of a higher loading temperature in order to prevent conventional boiler back up heating as early as pos
29. between the collector array A1 T1 and one of the two stor age tanks B1 B2 T2 T3 is reached the appropriate solar circuit pump R1 or R2 is switched on Both storage tanks B1 B2 are loaded one after the other according to the priority control chapter 7 4 Storage tank priority until either the relevant switch off temperature difference between the collector array A1 T1 and storage tanks B1 B2 T2 T3 is reached or a safety limit is reached Loading strategy of solar circuit pump R1 In the factory temperature differential control is chosen as the loading strategy for storage tank B1 It can be adjusted or changed to target temperature control using the Parameters menu chapter 7 3 Parameters Loading strategy of solar circuit pump R2 It is not possible to select whether temperature differential control or target temperature control is to be used as the loading strategy for storage tank B2 Solar circuit pump R2 operates according to the switch on and switch off tempera ture difference parameter values Activating the system see chapter 7 1 Selecting a system Terminal layout 7 2 Functions b e 1 Additional controller settings can be made by using the Functions sub e menu ni The following submenus can be opened using the Functions menu Display 2 Item Function
30. button gt The following values and displays appear one after another The temperature sensors of the system set and the corresponding current temperature values Outputs and corresponding running times Functions and their additional measured values gt The additionally set functions are displayed 8 2 Temperature sensor min max display Display of the min max values gt AV choose the desired temperature sensor gt SET access the information window gt The min max values are displayed Resetting the min max values gt SET press button for approx 2 sec gt The min max values are reset to the current temperature NOTE The minimum and maximum values of the connected temperature sen sors are always logged and accessible The values stored can be reset at any time 8 3 Operating hours display for pumps switching valves Display of the operating hours gt AV choose the desired pump or valve gt SET access the information window gt The hours of operation logger is displayed Resetting the operating hours v Operating hours called up gt SET press button for approx 2 sec The delta value A is reset to zero The outputs operating hours are always stored Here a distinction is made between total operating hours gt and delta operating hours A The total operating hours cannot be reset How ever delta operating hours can be reset to zero at any time 40 728 138 08 12
31. difference be temperature tween collector and storage tank is reached the difference storage tank is loaded 2 K Switch off temperature difference solar 1 and solar 2 Factory Adjustable Adjustable Description setting down to up to max min 4K OK Switch on When the switch off temperature difference temperature dif between collector and storage tank is reached load ference 2 K ing of the storage tank is stopped The difference between the switch on temperature difference and the switch off temperature difference must be at least 2 K and is barred from being set any lower Switch on temperature difference external heat exchanger Factory Adjustable Adjustable Description setting down to up to max min 6K When the switch on temperature difference between the secondary side of the external heat exchanger and the storage tank is reached the stor age tank is loaded This value cannot be changed Switch off temperature difference external heat exchanger Factory Adjustable Adjustable Description setting down to up to max min 3K When the switch off temperature difference between the secondary side of the external heat exchanger and the storage tank is reached loading of the storage tank is stopped This value cannot be changed 728 138 08 12 49 Maximum collector temperature Factory Adjustable Adjustable Description setting down to up to max min 130 C Minimum
32. e The solar circuit is running in order to protect the collector from icing up Ho Volume flow fault solar circuit check hydraulics Air in system Despite the fact that the pump is running the temperature difference between the collector and the external heat exchanger is too great gt Volume flow is too low Check the solar circuit s hydraulics pump valves and shut off devices If necessary bleed the system open the shut off devices and flush out blockages Ho UMN Volume flow fault secondary circuit check hydraulics Air in system Despite the fact that the pump is running the temperature difference between the external heat exchanger and the storage tank is too great gt Volume flow is too low Check the loading circuit s hydraulics pump valves and shut off devices If necessary bleed the system open the shut off devices and flush out blockages Ho Collector connections may be wrong way round Check hydraulics Solar circuit shows suspicious cycle behaviour Check the collector array s supply and return pipes and mount them cor rectly if applicable Info double allocation conflicting settings The internal settings check has identified conflicting settings or double allocation of sensors Check the function s time settings Double allocation of sensors is per mitted and this is only intended as informati
33. e to pump caused by dry operation The controller may only be set to Automatic when the system has been filled gt In order to switch the outputs to Automatic slide the operating gt 1 TC switch to the middle position gt The status appears in the display This mode of operation is the automatic controller mode and must be set for automatic operation ck E lt 4 Automatic NOTE lt gt During normal system operation the operating switch should always be set to Automatic 6 3 Manual mode CAUTION Damage to pump caused by dry operation The controller may only be set to Manual when the system has been filled When operating the device for the first time or when testing the func tion the controller outputs can be manually switched gt In order to switch the outputs manually slide the operating switch gt up R1 on gt The display is backlit in red and a settings window is displayed Sete gt AV choose the desired output gt SET switch the selected output to on or off Manual gt ESC close the settings window a gt The current recorded values can now also be queried for the purpose of checking gt AV access measured values gt SET reopen the settings window 7 Settings Menu overview see following double page 7 1 Systems The desired solar energy system can be chosen using the System submenu There are a total of 4 dif
34. ee tbe itle ra 16 6 3 Manual mode s cmi erre rtp rne hn AAA eR MARIAS 16 7 SONOS acaso Iii incenso de an 7 1 Systems 7 2 Functions 4 3 Parameters ecce asi ere inta i deris 35 7 4 Storage PHONY oie iced dL ende UR ains ka 37 4 5 Language e epe E 38 7 6 Factory settings eaten epe re epe t eee ed 38 8 Automatic operation 39 81 Status display ee Roe RE RS 40 8 2 Temperature sensor min max display sess 40 8 3 Operating hours display for pumps switching valves 40 9 Fault finding errore neret ean pn venere a nena 41 9 1 Causes of problems sss 42 9 2 Pt1000 temperature sensor values 43 10 Information windows eese 44 11 Plausibility indices 12 Legal guarantee seseseeeeeeeeeeneeenenennnnnnn 13 Technical data eere ere rere eren ens 13 1 Performance data ssssssssssssssseseeseeeeeeeennns 13 2 Parameter settings raianta enearo aen 13 3 Parameter values for functions sssssssssess 52 TA NOTES terie onno Diener e eniro teet 55 Product information EC declaration of conformity This product conforms to the applicable European directives with regard to its design and its operating behaviour This conformity has been verified Further information in this regard can be obtained from your dealer 1 Safety 1 1 Proper usage The temperature difference contr
35. er value v Submenu Parameters selected see Accessing parameters gt SET press button 8K 4 gt The display with the selected system and the corresponding parameter value flashes gt AV set the value gt SET press button to confirm Sample display loading Exiting the parameter strategy of storage tank 1 gt ESC press button to confirm NOTE The loading strategy and RPM control parameters can be adjusted as follows 728 138 08 12 35 EN 7 3 2 Setting the loading strategy parameter V Access the loading strategy parameters see chapter 7 3 1 gt SET press button gt The display for setting the temperature differential control or target temperature control appears Choosing loading strategy between temperature dif ferential control and target temperature control gt SET press button for approx 2 sec gt Select either temperature differential control dT or target tem perature control T Setting the temperature differential value or target temperature value gt SET press button gt The temperature differential value flashes in the display e g dT 8 K gt AV set the temperature differential value gt SET press button to confirm gt The target temperature value flashes in the display e g T 60 C gt AV set the target temperature value gt SET press button to confirm c The settings are saved 7 3 3 Sett
36. esistance measured and the value compared with the figures in the table below Small devia tions are acceptable Temperature C 30 20 10 JO 10 20 Resistance Q 882 922 961 1000 1039 1078 30 40 50 60 70 1117 1155 1194 1232 1271 Temperature C 80 90 100 Resistance Q 1309 1347 1385 110 120 130 140 150 1423 1461 1498 1536 1573 160 170 180 1611 1648 1685 10 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 9 Activation not possible Settings are incomplete Description Function cannot be activated as the cor responding settings are incomplete Function was deactivated again Measures Check and complete the settings 9 Activation not possible All outputs are occupied Function cannot be activated as all outputs are already occupied If the selected layout or another function is to be retained this func tion cannot be used 9 Caution all Diverse settings have to be repeated after changing system When changing systems all settings of functions and parameters are reset Settings which are still needed and
37. fference for return increase must be at least 2 K and is barred from being set any lower EN Maximum temperature loading circuit Factory Adjustable Adjustable Description setting down to up to max min 100 C Minimum 130 C When the temperature on the secondary side in loading cir the heat exchanger reaches 3 K below the defined cuit tempera maximum value the solar circuit pump is switched ture 20 K off and the storage tank loading pump continues to run When the temperature drops back down to 10 K below the maximum value the solar pump switches on again If the defined maximum value is nevertheless reached the storage tank loading pump also switches off for safety reasons When the temperature returns to below the maximum temperature the storage tank loading pump switches on again Minimum temperature loading circuit Factory Adjustable Adjustable Description setting down to up to max min 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 20 K temperature Loading strategy storage tank 1 Factory Adjustable Adjustable Description setting down to up to max min Temperature differential control It is possible to choose between temperature dif 8K 2K 50K ferential loading and target temperature load ing Depending on
38. gt V press button gt The display for setting the storage priority appears gt SET press button gt The storage priority flashes gt AV set the storage priority gt SET press button to confirm 728 138 08 12 37 7 5 Language gt pe 1 Accessing and selecting the language gt SET press button for approx 2 sec gt AV select menu item Language DEDEY S Language gt SET press button gt The language display appears gt i gt SET press button Tom gt The set language flashes E gt AV select a language A gt SET press button to confirm Deutsch 7 6 Factory settings gt Resetting the factory settings N VU gt SET press button for approx 2 sec gt AV select the menu item Factory settings piney gt SET press button gt The display Reset all values appears gt Factory settings gt SET press button gt gt All values are reset to the factory settings gt The controller restarts The controller must now be reconfigured see chapter 5 Commissioning Display 6 1 Reset yes NOTE ali values no When the controller is reset to factory settings all settings return to the values they had upon delivery of the controller The following values are retained The min max values of the temperature sensors e The outputs operating hours Max heat output
39. h on the controller is set to OFF gt The display for setting the language appears 5 1 Setting the language v Deutsch flashes in the display gt AV select a language gt SET confirm the language gt ESC finish the settings gt The display for setting the system group appears 5 2 Setting the system group NOTE For an overview of systems see chapter 7 1 Systems v The first system group 1 storage tank system appears in the display gt AV select a system group gt SET confirm the system group gt The display for setting the system appears 5 3 Setting the system v The first system in the selected system group appears in the display gt AV select a system gt SET confirm the system gt In the display a small checkmark appears below the item number which confirms that the system is selected gt ESC exit the settings menu gt The commissioning is finished 6 Modes of operation 6 1 OFF mode gt In order to switch off the outputs slide the operating switch down gt A new window appears in the display which shows OFF as well as the controller software version number and the number Version XX of System No X the chosen system The display is backlit in red 5 In OFF mode all outputs R1 R2 are switched off lt Bor NOTE On delivery from the manufacturer the switch is set to OFF 6 2 Automatic mode CAUTION Damag
40. ing the RPM control parameter v Access the RPM control parameter see chapter 7 31 gt SET press button gt The display for activating yes or deactivating no the RPM control is shown Activating or deactivating the RPM control gt SET press button for approx 2 sec gt Choose between yes and no for RPM control Setting the minimum speed gt SET press button gt The min RPM value flashes gt AV setthe minimum speed gt SET press button to confirm c The settings are saved 36 728 138 08 12 Display 3 21 loading strategy of storage tank 1 Display 3 21 Settings window Display 3 24 RPM control pump R1 min 5096 Display 3 24 Settings window no yes Ha Display 4 Storage priority 4 1 er H s Display 4 1 off on 4 S00 1 2 Display 4 2 EN 7 4 Storage priority When a 2 storage tank system is selected the storage priority can also be specified When storage priority is activated a first priority storage tank and a second priority storage tank can be defined If it is intended that one of the two storage tanks is not to be loaded this tank can be removed from the storage priority When storage tank priority is deactivated the storage
41. ion flashes after confirmation of the input gt AV set the circulation duration gt SET press button to confirm Input Wait time 10 Circulation 2 min min gt The wait time flashes after confirmation of the circulation dura DE tion gt AV set the wait time gt SET press button to confirm the wait time and close gt The settings are saved gt ESC leave the Circulation submenu 7 2 3 Back up heating function gt a This function allows thermostatic control of an output for additional heating of the solar storage tank using an oil or gas burner orar Temperature control When the temperature in the upper part of the Display 2 2 storage tank falls below the on value then the output is switched on 3 Back up heating until the off temperature is reached Choosing the input and setting the temperature limits v Functions submenu selected see Selecting a function chapter 7 2 1 v Back up heating activated see Activating a function chapter 7 2 1 v Outputs selected see Selecting an output chapter 7 2 1 gt V press button gt The display for setting the temperature input and the on and gt off values appears go gt gt SET press button gt T flashes in the display storage tank temperature input o LE 55 C J 60 C gt AV choose the desired output ux gt SET press button to confirm a gt The
42. ite the activated frost protection function During a power outage frost protection function does not operate nthe event of a break or short circuit in a collector sensor or cable During long term periods of frost due to restricted water tank heat storage If collectors are mounted in locations exposed to wind gt If frost is expected for a long period of time only operate the system with heat transfer fluid It is recommended to generally use heat transfer fluid with anti freeze for solar energy systems 7 2 13 Display storage tank top function gt The display storage tank top function serves merely as an additional a display and has no effect on control v Functions submenu selected see Selecting a function chapter 7 2 1 Display 2 12 display storage tank top V Display storage tank top activated see Activating a function chapter 7 2 1 gt V press button gt The display for selecting the storage tank and the corresponding gt temperature sensor appears o 2 gt SET press button poer E gt The upper temperature sensor flashes in the display gt AV set the temperature sensor gt SET press button to confirm gt The storage tank selection flashes in the display gt AV set the storage tank gt SET press button to confirm NOTE There are two storage tank top settings available which are independ ent of one another Display
43. nitor the compliance with this manual nor the conditions and methods during the installation operation usage and maintenance of the controller Improper installation of the system may result in damage to property and as a result to bodily injury Therefore the manufacturer assumes no responsibility and liability for loss damage or costs which result from or are in any way related to incorrect installation improper operation incorrect execution of installa tion work and incorrect usage and maintenance Similarly we assume no responsibility for patent right or other right infringements of third parties caused by usage of this controller The manufacturer reserves the right to make changes to the product technical data or installation and operating instructions without prior notice 2 Case overview Operating switch The following modes of operation can be selected Manual for commissioning and testing for function Automatic for automatic operation Off for switching off the outputs lt Manual lt Automatic lt otf im Display Display for controller operation and system settings Operating buttons lt Arrow up amp for scrolling up through the menus L SET button Confirmation or Activation of a value ESC button escape key Arrow down for scrolling down through the menus Fuses see ch
44. oller 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 13 Technical data The controller must not be operated in the following environments outdoors in damp rooms in rooms where highly flammable gas mixtures can occur e in rooms in which the operation of electrical and electronic components may cause dangers to arise 1 2 Dangers during assembly commissioning The following dangers exist during installation commissioning of the controller and during operation in case of installation errors Risk of death by electrocution Risk of fire due to short circuit Damage to any of the constructional fire safety measures present in the building due to incorrectly installed cables Damage to the controller and the connected devices due to improper ambient conditions inappropri ate power supply and the connection of prohibited devices faulty devices or devices not included in the device specifications as well as incorrect assembly or installation NOTE Observe the controller s type plate Therefore all safety regulations apply when working on the mains supply Only electricians may perform work that requires opening the controller such as electrical connection work gt When laying cables ensure that no damage occurs
45. on Display 2 1 3 Temp controlled Display 2 1 3 1 on off EN 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 This is also displayed in an information window see chapter 10 Leaving the menu gt ESC press button 7 2 2 Circulation function A circulation pump can be controlled in a temperature based or pulse based manner These types of control can also be combined with each other Temperature control when the temperature in the circulation return falls below the on value then the pump is switched on until the off temperature is reached NOTE In order to avoid measurement errors caused by the pipe s thermal con duction a minimum clearance space of 1 50 m from the storage tank should be observed when installing the circulation sensor Pulse control when the circulation function is requested via a pulse e g from a flow switch the pump runs for the set circulation duration Subsequently no further requests are accepted until the set wait time has expired Activating temperature control vy Functions submenu selected see Selecting a function chapter 7 2 1 Circulation activated see Activating a function chapter 7 2 1 Outputs selected
46. on Ho Plausibility check gt user manual P36 The internal plausibility check has identified conflicting settings A sensor error has been detected Look up the error code in the operat ing instructions chapter 11 and check correct the entries Locate and check the corresponding at present El Fault detected eE sensor s in the display menu g Sensor cable Sensor cable is interrupted incorrectly Check connection and or sensor ca Hae connected or the sensor is possibly ble Possibly check sensor and sensor Solet defective cable using an ohmmeter gerer Sensor cable has short circuited or the Check connection and or sensor ca Besos sensor is possibly defective ble Possibly check sensor and sensor cable using an ohmmeter 3 Sexege ark Loading of the storage tank was deacti If this is not wanted loading can be Lean vated due to storage priority reactivated via storage priority storage priority a Pmp operation The collector is in a stagnant state Wait until the collector has cooled not enabled pump starts are blocked in order to prevent damage sufficiently before setting these values 45 as 11 Plausibility indices The internal plausibility check ascertains whether conflicting settings have been detected in the controller In this event an information window displays an
47. ors Pt1000 that are approved for use with the controller gt Observe the following points The polarity of the temperature sensor contacts is not important Do not lay sensor cables close to power cables minimum sepa ration 100 mm If inductive effects are expected e g from power cables overhead wires transformer substations radio and television devices amateur radio stations microwave devices etc the sensor cables must be adequately screened Sensor cables may be extended to a maximum length of 100 m gt If adding extensions to sensor cables select the following cable cross sections 0 75 mm up to 50 m long 1 5 mm up to 100 m long gt Connect the cables in accordance with the terminal diagram see chapters 4 5 and 7 1 4 4 Dismantling De N DANGER Risk of death by electrocution gt Remove the controller from the power supply before dismantling it gt To dismantle the controller follow the assembly instructions in the reverse order 4 5 Terminal plan 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 e Cables conforming to at least type H05 VV NYM must be used G1 grid D1 wire bridge 4 5 2 Connection of the inputs Inputs 1 4 for Pt1000 temperature sensor nputs E1 input 1 it ase E2 input 2 E3 input 3 E4
48. r temperatures the efficiency decreases significantly thus loading takes longer This delays the beginning of any stagnation time Stagnation reduction can only be activated or deactivated NOTE It is possible that this causes the storage tank to be loaded with a higher solar temperature However the set maximum storage tank temperature always has priority This continues to be observed as do other safety limits Activating the stagnation reduction function vy Functions submenu selected see Selecting a function chapter 7 2 1 y Stagnation reduction function activated see Activating a function chapter 7 2 1 Da 4 7 2 11 Holiday function recooling d If the user extracts too little hot water or none at all e g during holidays MES a completely heated storage tank can cause the solar energy system to begin evaporation prematurely and the system is thus subjected to a Display 2 10 higher thermal load Holiday function recooling When the holiday function is activated and the temperature in the stor age tank reaches 10 K below the set maximum storage tank temperature the controller attempts to systematically unload the lower part of the stor age tank until the set minimum storage tank temperature is reached Defining the minimum storage tank temperature v Functions submenu selected see Selecting a function chapter 7 2 1 v Holiday function recooling activated see Ac
49. rature loading circuit 1 P 23 Target temperature control storage tank 1 gt maximum temperature loading circuit 1 P 28 Switch on temperature difference external heat exchanger maximum temperature storage tank 1 gt maximum temperature loading circuit 1 B29 Switch on temperature difference external heat exchanger maximum temperature stor age tank 2 gt maximum temperature loading circuit 1 P31 Temperature differential control storage tank 1 lt switch off temperature difference external heat exchanger P 33 Quick charge OFF gt target temperature control storage tank 1 P 34 Quick charge ON and RPM control OFF P135 Circulation ON and temperature control and pulse control P 37 Holiday function target temperature gt maximum storage tank temperature 12 Legal guarantee In accordance with German statutory regulations there is a 2 year legal guarantee on this product for the customer The seller will remove all manufacturing and material faults that occur in the product during the guarantee period and affect the correct functioning of the product Natural wear and tear does not constitute a malfunction No legal guarantee can be offered if the fault can be attributed to third parties unprofessional installation or commission ing incorrect or negligent handling improper transport excessive load ing use of improper equipment faulty construction work unsuitable construction location or improper operation or
50. ress protection IP 20 DIN 40050 Protection class l Permitted ambient temperature 0 to 45 C Display Animated graphic LCD with backlighting Dimensions L x W x H mm 170 x 170 x 46 Software class A Type of action Type 1B Type of fastening for permanently con Type X nected cables Intended transport condition No information Degree of pollution 2 Ball pressure test temperature 850 C overvoltage category Class II 2500 V 13 1 Performance data Output Power Fuse R1 250 W 230 VAC 125 W 115 VAC Internal fuse 1 6 A T 250 V or T 1 6 A H 250 V Littelfuse 21501 6 R2 800 W 230 VAC 400 W 115 VAC Internal fuse 4 A T 250 V or T 4 AH 250 V Littelfuse 215004 N DANGER ne Risk of death by electrocution Fuses may only be changed after disconnection from the power supply and by trained professional personnel EN 13 2 Parameter settings Maximum temperature storage tank 1 and storage tank 2 Factory Adjustable Adjustable Description setting down to up to max min 60 C 0 C 95 C When the maximum temperature of storage tank 1 storage tank 2 is reached storage tank 1 storage tank 2 is not loaded until the temperature drops to 3 K below the defined maximum value Switch on temperature difference solar 1 and solar 2 Factory Adjustable Adjustable Description setting down to up to max min 8K Switch off 50 K When the switch on temperature
51. rresponding information window is displayed 7 2 7 Thermostat function gt pm This function allows a controller output to be controlled depending on a on off pre defined temperature range Depending on the temperature setting 2 9 4 7 the thermostat function can be activated either when the temperature falls below heating or rises above cooling a certain level Display 2 6 If on value is higher than off value If the temperature difference thermostat exceeds the defined on value the output is switched on until the tem perature difference falls below the off value If on value is lower than off value If the temperature falls below the defined on value the output is switched on until the temperature rises above the off value Defining the input and temperature values vy Functions submenu selected see Selecting a function see chapter 7 2 1 v Thermostat activated see Activating a function chapter 7 2 1 v Outputs selected see Selecting an output chapter 7 2 1 gt V press button gt The display for setting the temperature input and the on and gt off values appears i i 2 gt SET press button oye gt T flashes in the display temperature input gt AV choose the desired output gt SET confirm the input pe gt The on value flashes in the display gt AV set the on value gt SET press button to confirm gt The off value fl
52. s Arrow up down for scrolling V Press Arrow down for scrolling through the menu or to adjust a value A Press Arrow up for scrolling through the menu or to adjust a value SET Press SET button to confirm or activate a value ESC Press ESC button to cancel 4 Installation 4 1 Opening closing the housing N DANGER P at Risk of death by electrocution gt Remove the controller from the power supply before opening the case gt Make sure that the power supply cannot be unintentionally switched back on gt Do not damage the casing gt Only switch the power supply back on after the casing has been closed The upper casing is connected to the lower casing by two latches and fastened with a screw 4 1 1 Opening the case gt Loosen the screw and remove the upper case in an upwards direction 4 1 2 Closing the case gt Place the upper case over the lower case at an angle Insert the latches into the recesses of the lower case gt Pivot the upper case down and feed the operating buttons through the matching holes gt Fasten the casing tightly with the screw Operating buttons Upper casing Screw 8 728 138 08 12 4 2 Assembly ZA WARNING Risk of electrical shock and fire if mounted in a damp environ ment gt Only mount the controller in an area where the ingress protection is sufficient see chapter 13 Technical data 4 2 1 Mounting the controller A CAUTIO
53. see Selecting an output chapter 7 2 1 gt V press button gt The Temp controlled display appears gt SET press button gt Temperature control is activated gt V press button gt The display for setting the temperature input and the on and off values appears gt SET press button gt T flashes in the display circulation pipe temperature input gt AV choose the desired input gt SET press button to confirm gt The on value flashes after confirmation of the temperature sensor gt AV set the on value gt SET press button to confirm gt The off value flashes after confirmation of the on value gt AV set the off value gt SET press to confirm and close c The settings are saved 4 4 728 138 08 12 25 Activating pulse control V Functions submenu selected see Selecting a function chapter 7 2 1 v Circulation activated see Activating a function chapter 7 2 1 V Outputs selected see Selecting an output chapter 7 2 1 gt V press button gt The Pulse controlled display appears gt SET press button gt Pulse control is activated gt gt V press button gt The display for setting the pulse input circulation time and wait time appears gt SET press button Display 2 1 4 Pulse input flashes Pulse controlled gt AV choose the desired output gt SET press button to confirm gt The circulation durat
54. sible Display 2 4 Quick charge When the temperature in the upper part of the storage tank falls below the on value the loading strategy of storage tank 1 switches from differential loading to target temperature loading The controller s RPM control is then used with the objective of loading the storage tank at a higher temperature level Setting the input for the upper part of the storage tank and switch on switch off temperatures v Functions submenu selected see Selecting a function chapter 7 2 1 v Quick charge function activated see Activating a function chapter 7 2 1 gt V press button gt The display for setting the temperature input and the on and gt off values appears v Qo gt SET press button Li 50 C B 52C gt T flashes in the display upper storage tank temperature input gt AV choose the desired output Pee a gt SET press button to confirm ae gt The quick charge function s on value flashes in the display gt AV set the on value gt SET press button to confirm gt The off value flashes after confirmation of the on value gt AV set the off value gt SET press button to confirm c The settings are saved NOTE When the on value is adjusted the off value is altered accordingly in order to maintain reliable quick charge functionality 7 2 6 Heat quantity function b ipe 1 The controller has a
55. 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 e Deactivate the relevant function if The holiday function is acti necessary vated The frost protection function is activated e Blockage protection is acti vated Symbol rotates The operating switch is set to Setthe operating switch to auto Display has a red manual operation and the pump matic operation background output is set to on Tool symbol is visible on the display Solar pump is operating activation condition is fulfilled nevertheless no heat transport in the solar circuit no fluid circulation Secondary symptoms Possible cause Procedure The pump symbol in e Air is in the solar circuit Check the solar circuit for air the display rotates Theisolating valve is closed Check the isolating valve e Limescale contamination on Flush clean the solar circuit solar circuit Solar pump shows cycle behaviour Secondary symptoms Possible cause Procedure Temperature difference too Adjust temperature difference in the small Parameters menu Check the collector sensor Collector sensor incorrectly positioned 9 2 Pt1000 temperature sensor values A potentially defective sensor can be checked using an ohmmeter To do this the sensor must be discon nected its r
56. struction does not allow the temperature to be recorded at the appropriate location In these LT cases the solar circuit must be briefly activated at regular intervals to transmit the actual heat from the collector pipe to the collector sen Display 2 8 sor When the interval function is activated the controller automatically Interval switches the pump on according to the settings Setting the interval function v Functions submenu selected see Selecting a function chapter 7 2 1 V Interval activated see Activating a function chapter 7 2 1 gt V press button gt The display for setting the interval time and the test time gt appears Intervall 15 min gt SET press button Tes 10s gt AV set the interval duration gt SET press button to confirm DIESIEYE 2 8 2 gt After confirmation of the Interval duration the Test duration ape al duration for which the pump is switched on flashes gt AV set the test duration gt SET press button to confirm c The settings are saved ERA eA WT 4 7 2 10 Stagnating reduction function e This function delays the end of the storage tank s loading phase in order A to reduce or even to avoid the system s stagnation times at high temper atures This causes the pump to be stopped repeatedly and only briefly Display 2 9 switched on again when high collector temperatures arise With higher Stagnation reduction collecto
57. tivating a function chapter 7 2 1 P V press button a 4 gt The display for setting the minimum storage tank temperature T appears AG min asie gt SET press button gt The min value flashes Display 2 10 2 gt AV Set the minimum temperature value for the storage tank gt SET press button to confirm NOTE This function should only be activated during long periods of absence When you return please deactivate this function in order to avoid unnecessary wastage of energy via the collector circuit Ss 728 138 08 12 33 7 2 12 Frost protection function gt gum When the frost protection function is activated the solar circuit pump SA i is switched on as soon as the collector temperature sinks below 5 C e This causes heat to be pumped through the collector from the lower part of the storage tank in an attempt to prevent the collector from Display 2 11 freezing Frost protection If the collector reaches a temperature of 7 C the pump is switched off again This function is only useful in systems without anti freeze in the heat transfer fluid The frost protection function can only be activated or deactivated Activating the frost protection function vy Functions submenu selected see Selecting a function chapter 7 2 1 v Frost protection function activated see Activating a function chapter 7 2 1 ZACAUTION System can freeze desp
58. ughly reading and understanding these operating instructions and the safety instructions Adhere to all safety instructions and consult professional personnel in the event of any ambiguities This device is not intended for persons or children with physical sensory or mental disabilities or who have inadequate experience and knowledge unless they are instructed in the use of the device and initially supervised by a person responsible for their safety Children should not be left alone with the device to ensure that they do not play with it 3 3 Description of symbols 3 3 1 The structure of the warning notices AN SIGNAL WORD Type source and consequences of the danger gt Measures for avoiding danger 3 3 2 Danger levels in warning notices Danger level Likelihood of Consequences resulting occurrence from non compliance A Imminent Death serious DANGER threat of danger bodily injury A Possible Death serious WARNING threat of danger bodily injury A Possible Minor CAUTION threat of danger bodily injury CAUTION Possible Property damage threat of danger 3 3 3 Notes NOTE Note on easier and safer working habits gt Measures for easier and safer working habits 3 3 4 Other symbols and markings Meaning v Precondition for action gt Call to action Result of action e List Emphasis on issue at hand Emphasis on issue at hand AV Pres
59. up heating potins 2 Solid fuel boiler Switch on temp difference solar 1 Quick charge Switch off temp difference solar 1 Heat quantity Thermostat Switch on temp difference solar 2 Difference thermostat Switch off temp Interval difference solar 2 Stagnation Max collector reduction temperature Holiday recooling Min collector function temperature Switch on tempera ture difference return increase Frost protection Display storage tank top Switch off tempera ture difference return increase Max temperature loading circuit 1 Min temperature loading circuit 1 Loading strategy storage tank 1 RPM control pump R1 19 EN 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 collector array A1 T1 and storage tank B1 T2 is reached When the switch off temperature difference between collector array A1 T1 and storage tank B1 T2 or a safety limit is reached the solar circuit pump R1 is switched off again Loading strategy of solar circuit pump R1 In the factory temperature differential control is chosen as the loading strategy for the storage tank B1 It can be adjusted or changed to target temperature control using the Parameters menu chapter 7 3 Parameters Activating the system see chapter 7 1 Selecting a s
60. ystem Terminal layout ne n L nc nc 20 728 138 08 12 bit Display 1 1 Storage tank Display 1 1 1 A1 collector array B1 storage tank D1 wire bridge R1 solar circuit pump T1 collector sensor T2 lower area of storage tank Display 1 1 2 Al B1 D1 R1 R2 Ti T2 T3 T4 collector array storage tank wire bridge solar circuit pump switching valve heating return increase collector sensor lower area of storage tank sensor storage tank heating return increase sensor heating return increase EN 4 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 collec tor array A1 T1 and the storage tank B1 T2 is reached When the switch off temperature difference between the collector array A1 T1 and the storage tank B1 T2 or a safety limit is reached the solar circuit pump R1 is switched off again Description of the heating return increase The 3 way valve R2 in the heating return is switched on water flows through storage tank as soon as the switch on temperature difference between the storage tank B1 T3 and the heating return T4 is reached When the switch off tem perature difference T3

Installation and operating instructions EN

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