Installation and operating instructions EN
Contents
1. EN Y Y The settings menu is open Symbols for temperature sensor T1 and tube collec gt tor function flash gt Press the button for approx 2 seconds until top 1s temperature sensor T1 is changed to bottom T1 gt To exit the settings menu press the 2 button again until the main menu appears 8 2 5 Setting the storage tank maximum tem perature A DANGER Risk of scalding due to storage tank temperature of over 60 C gt Install a thermostatic mixer in the hot water pipe and set to a maximum 60 C J The settings menu is open Y The symbols for maximum storage tank tempera ture and temperature sensor T2 flash gt Press the amp button for approx 2 seconds until the temperature indicator flashes gt Change the maximum storage tank temperature using the 44 or CI buttons gt To exit the settings menu press the 4 button again until the main menu appears 8 2 6 Activating the anti freeze function CAUTION System can freeze despite the activated anti freeze function During a power outage the anti freeze function does not operate 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 term period of time only operate the system with antifreeze liquid For further information see chapter 7 5 NOTE2. gt The display shows 0 operating hours 8 2 Setting the controller settings menu 8 2 1 Layout of settings menus Note all temperature values are examples Abs Abs E asl 9G or 2 sec e3 2 sec 50 di F x di F ou 155 8 2 2 Using the settings menus gt To open the settings menus press the button for approx 2 seconds gt Settings menu Temperature unit is displayed gt To switch to the next setting press the 44 button gt To exit the settings menus press the 44 button again until the temperature sensor and tempera ture reading main menu are shown again 8 2 3 Selecting the temperature unit The settings menu is open Y Temperature unit C or F flashes gt Press the button for approx 2 seconds to tog gle between C and F gt To exit the settings menu press the 4 button again until the main menu appears 8 2 4 Activating the tube collector function NOTE Incorrectly setting the controller can compromise the efficiency of the solar energy system Therefore only activate the tube collector function if the construction of the collector does not allow its temperature to be recorded immediately and or accurately in some cases there are no immersion sensors the sensor is outside the collector pipe
3. Incorrectly setting the controller can compromise the efficiency of the solar energy system gt Only activate the anti freeze function for solar energy systems that are not filled with anti freeze The settings menu is open Y The symbol for anti freeze function flashes gt Press the button for approx 2 seconds to tog gle between oFF and on gt To exit the settings menu press the 2 button again until the main menu appears EN 8 2 7 Activating the holiday function J The settings menu is open vZ The holiday function symbol flashes gt Press the button for approx 2 seconds to tog gle between oFF and on gt To exit the settings menu press the 44 button again until the main menu appears 8 2 8 Activating the speed control The settings menu is open vV The speed control symbol flashes gt Press the button for approx 2 seconds to tog gle between oFF and on Depending on the oFF or on setting the following setting options are available gt The display shows oFF gt To exit the settings menu press the 44 button The main menu appears gt The display shows on gt Press the 2 button to access the settings menu in order to select speed control gt diF or AbS flashes on the display 34 723 812 08 44 The speed control function makes a distinction between the absolute temperature cont
4. Controller does not appear to function at all e The controller dis No power supply is present play is blank gt Have professional per sonnel check the fuse and the supply cable The pump which is connected to the controller is not running although its switch on conditions have been fulfilled e The pump symbol The pump connecting cable rotates on the is not connected inter display rupted gt If necessary have profes sional personnel testing the line e The pump symbol Storage tank full does not rotate e max indicator flashes e The pump symbol Collector fluid evaporates does not rotate e Symbol for evapo rating collector fluid flashes e The pump symbol Operating switch is set to does not rotate Off e Display is lit witha set the controller opera red background ting switch to Automatic e OFF flashes EN Short circuit symbol and warning display appear b e Ga e The pump symbol Short circuit in the tem does not rotate perature sensor or its sup e Display background Ply cable ae Short t bol and red and yellow generally us the heat carrier fluid with anti e The pump stops freeze for Solar Plants when there is a short circuit its reight for T1 and T2 NOTE In case of T3 short circuits the pump does not stop Interruption symbol and warning signal appear gt g zer l e The pump symbol
5. When switched on the solar circuit pump runs at maximum speed and delivers a constant volume flow suitable for pumps with integrated electronic control valves and external relays e g for controlling pumps Speed control on Speed controlled output When switched on the solar circuit pump runs at a controlled speed and delivers a regulated volume flow suitable for pumps without integrated electronic con trol The following display appears gt e The speed control symbol is displayed The speed control function however makes a distinc tion between the differential temperature control and absolute temperature control Temperature differential control diF The control system attempts to maintain a constant temperature difference between the collector and the storage tank The solar circuit pump performance is adjusted and the volume flow pumped is increased or reduced depending on the temperature difference The specified temperature difference is fixed at 8 K Absolute temperature control AbS The settings of the solar circuit pump allow the collector temperature sensor T1 to be kept at the absolute temperature as constant as pos sible so that the storage tank can be charged with the absolute temperature The absolute temperature can be entered in the setup EN 8 Operation CAUTION The incorrect operating mode may cause the sys tem to shut down or impair proper functioning gt
6. damage or costs which result from or are in any way related to incorrect installation improper opera tion incorrect execution of installation work and incor rect 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 assembly and operat ing instructions without prior notice g 723 812 08 44 3 Description 3 1 Controller in the solar circuit 3 1 1 The purpose of the controller The controller controls with by speed controll the pump in a solar thermal system see chapter 7 Description of the controller functions 3 1 2 The structure of the solar circuit collector sensor Temperature sensor E Temperature difference controller Optional Temperature sensor 3 a upper area of storage tank Storage tank Pump Temperature sensor 2 lower area of storage tank 3 1 3 The function of the solar circuit The controller constantly compares the temperatures between the collector T1 and the lower area of the storage tank T2 Once the sun heats the collector and there is a temperature difference of 8 K between the collector and the storage tank the pump is switched on The pump extracts the heat transfer fluid from the lower cooler area of the storage tank and pumps it to the collector
7. DGEDSG DGsDo 4 3 2 Connecting the cables gt Ifa protective conductor is provided or required for Nga the pump connect the protective conductor to the terminal clamps of the controller When connecting L the protective conductor observe the following points Figure 2 Cable feed from Make sure that the earthing contact is also con below nected to the controller s mains supply side ee Each terminal may only be connected to a single connecting wire max 2 5 mm gt The Extension Spring Locks to the connection pipes that are accepted are as follows single wire steep lt 2 5 mm finely standed conductor flexible lt 2 5 mm2 the Lacings are to twist with 1 turn to 20 mm finely standet conductor with core cable ends lt 1 5 mm gt Only use the original temperature sensor model Pt1000 that is approved for use with the controller gt Observe the following points The polarity of the sensor contacts is not important Do not lay sensor cables close to 230 volt or 400 volt cables minimum separation 100 mm If inductive effects are expected e g from heavy current cables overhead train cables transformer substations radio and television devices amateur radio stations microwave devices etc then the sensor cables must be adequately shielded Sensor cables may be extended to a maximum length of 100 m gt When using extension cables select the following cable cross sections 0 75 mm
8. Make sure that the operating switch is set to auto matic operation 8 1 Setting the controller main menu The temperature values of each temperature sensor and operating hours of the pump can be read in the main menu of the display 26 723 812 08 44 EN 8 1 1 Layout of main menu Saved min max min max temperature values are deleted values are shown alter and set to the current nately on the display temperature value Temperature sensor T1 Press min a i i for 2 sec 2 SEC and the current meas __gw gt Reset ured temperature max End of lt qQ display v Or automatically CA v after 1 min Press i min Temperature sensor T2 eres 2 sec and the current meas SET l SET Reset ured temperature mox End of v q display Or automatically after 1 min Press min for 2 sec if available Temperature sensor T3 and the current meas ured temperature 2 sec ai Reset End of GA display Or automatically Qi after 1 min Operating hours Operating hours Press display flashes are SET to 0 aa hours of A re 1235 2sec T e pump y Or automatically Pally after 1 min 723 812 08 44 27 EN 8 1 2 Display of temperature values NOTE The temperature in the above storage tank is only dis played if the temperature sensor
9. Temperature sensor T1 or N does not rotate T2 or its supply cable is i D pey Sra aee e ded Interruption symbol and alternately flashes t s racommenoaea to ie hats red and cae generally us the heat Waring sitar anped carrier fluid with anti e The pump stop with eho freeze for Solar Plants interruption its reight for T1 and T2 NOTE If T3 is interrupted no message appears the pump stop not 38 723 812 08 44 4 SYS and the warning symbol flash in the control ler display SYS means there is a system error This means that despite the pump running a temperature differ ence exceeding 80 K between the collector and the storage tank was recorded The following causes are possible e The pump is faulty or not correctly connected e The isolating valve in the solar circuit is still closed SYS and the warning symbol flash in the controller display e There is air in the solar circuit Since a standard circulation pump cannot elimi nate air bubbles inside the piping system the heat transfer medium circuit comes to a standstill gt Have professional personnel check the solar energy system to prevent damage gt Once the fault has been remedied press any but ton to acknowledge the fault message 9 2 Testing the temperature sensor 9 2 1 Safety Only professional personnel may test the temperature sensor wf 9 2 2 Testing the resistance values
10. The heat transfer fluid in the collector is heated by the sun and flows back to the storage tank The heat transfer fluid heats the domestic water via a heat exchanger located in the storage tank 3 2 Case overview Operating switch The following modes of operation can be selected On for commissioning and testing for function Auto for normal operation Off to switch off the pump lt On lt Auto lt Off a Display Display for controller operation and system settings Operating buttons Arrow up SET button Arrow down Connections Grid pump temperature sensors Hinge grooves Lower case Operating buttons Upper case 4 Installation 4 1 Opening closing the case A DANGER 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 unin tentionally switched on gt Do not damage the case gt Only switch the power supply back on after the case has been closed The top of the case is held in place by two retaining pegs on the upper edge of the bottom half of the case and fastened with a screw 4 1 1 Opening the case gt Loosen the screw and remove the upper case in an upward direction 4 1 2 Closing the case gt Place the upper case over the lower case at an angle Insert the hinge grooves into the retaining pe
11. Z DANGER ue Risk of death by electrocution gt Remove the controller from the power supply before opening the case The temperature is recorded by resistance sensors These are Pt1000 temperature sensors Depending on the temperature the resistance value also changes A potentially defective sensor can be checked using an ohmmeter Measuring resistance values gt Disconnect the corresponding temperature sensor from the controller gt Measure the resistance value The typical resistance values depending on the temperature are listed in the following table Please note that small devia tions are permissible Temperature sensor resistance values Resistance Q Resistance Q 1117 1155 1194 1232 1271 1309 Temperature C 150 Resistance Q 1573 1611 1648 1685 10 Dismantling and disposal 2 Z DANGER Risk of death by electrocution gt Remove the controller from the power supply before dismantling the controller y To dismantle the controller follow the assembly instructions in the reverse order Dispose of the controller in accordance with the regional regulations y 11 Technical data Operational voltage Temperature differential controller 230 V 15 50 Hz optional 115 V 15 60 Hz Own consumption lt 1W Inputs 3 temperature recording Pt1000 Output 1 1 x triac switched output switching performance m
12. T3 not included is also connected gt Select temperature sensor T1 T2 or T3 using the and buttons gt The selected temperature sensor and the current measured temperature appear on the display 8 1 3 Display of min max temperature values Y Y Required temperature sensor is selected gt Press the button briefly gt min max temperature values are shown alter nately on the display gt To exit min max temperature value settings press or button 8 1 3 Deleting min max temperature values Y Y Required temperature sensor is selected gt Press the 4 button briefly gt min max temperature values are shown alter nately on the display gt Press the button for approx 2 seconds until the temperature values saved are deleted EN gt The min max temperatures and the current meas ured temperature appear on the display gt To exit min max temperature value settings press or button 8 1 4 Display of the pump s operating hours gt Use the or 4 button to select the operating hours of the pump gt The operating hours of the pump appear on the display 8 1 5 Deleting the operating hours of the pump V The operating hours of the pump are selected gt Press the button briefly gt The operating hours flash on the display gt Press the button for approx 2 seconds until the operating hours are set to 0
13. X Dimplex Solar Controller SOLCU1 Installation and operating instructions Temperature differential controller 3 inputs 1 output speed control 723 812 wi Z03 Subject to change due to technical improvements 87374 1 08 07 Content 1 About this manual c cee 3 7 Description of the controller 1 1 Applicability oacetuciisunaiscntnevieiteramoncedoarutenide 3 PUICU OM Sirsacacpeanoaceetaiennesaavenseuarestagae 20 Tp NY SONG ee E 3 7 1 Switch on switch off temperature 1 3 Description of syMboIsS csseeeeees 4 difference eee cece cee seeeeeeeeseasseeeeeeeeees 20 2 Sa ee ee en ee nee ere 5 7 2 Maximum storage tank temperature 20 2 1 Proper usage wiccccscarvasceceredisianimeusedeceaiinien 9 7 3 Maximum collector temperature 21 2 2 Improper USAGE cccccseeeeeeeeeeeeeeeenees 5 7 4 Tube collector function 0e 21 2 3 Dangers during assembly and 7 5 Anti freeze function 00 cceeeeeeeeees 22 COMMISSIONING sieesetcoceconenvitdcdcedonsenuntetdes 6 7 6 Holiday function 23 2 4 Detecting TAUINS sites cscsaratinec de eeen 7 7 7 Speed control 24 2 5 Exclusion OT WADING iiecieietctec csetereraxest 7 8 Operatioun 26 3 Description nscccnssccescccssscncceeeccdsacesences 9 8 1 Setting the controller main menu 26 3 1 Controller in the solar circuit 0 9 8 2 Setting the controller settings menu 30 3 2 Case OVEFVICW ccccccesseeeeeeeeeeeaneeeeees 10 9 M
14. aintenance ccccccseeeseeeeeeeeeees 36 4 Installation n i 11 9 1 Fault CAUSOS ssccsvacissacascedvodesenravsenvedeiss 36 4 1 Opening closing the case 11 9 2 Testing the temperature sensor 39 4 2 Mounting wscieestorevestincevesteresnenmesecaedsns 12 10 Dismantling and disposal 41 4 3 Electrical connection cccceeeee sees 13 11 Technical data ccccccseeeeeeeeeees 42 5 Display overview ccceeeeeeeeeees 17 6 COMMISSIONING cceeeeeeeeeeeeees 18 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 1 About this manual 1 1 Applicability This manual describes the installation commissioning function operation maintenance and dismantling of the temperature differential controller for solar thermal energy systems When installing the remain ing components e g the solar collectors the pump assemblies and the storage unit be sure to observe the appropriate installation instructions provided by each manufacturer 1 2 Users Installation commissioning operation maintenance and dismantling of the controller may only be per formed by trained professional personnel Before commissioning the controller must be professionally assembled and installed b
15. ation 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 Feeding the cable through the rear of the case diagram 1 Z WARNING Risk of electrical shock and fire due to cables com ing loose gt Install an external strain relief for the cables B mar Ja A gt Remove the plastic flaps from the rear side of the gt 2 a d Sc case using an appropriate tool SS Figure 1 Cable feed from the Feeding the cable through the lower side of the rear case diagram 2 ZA WARNING Risk of electrical shock and fire due to cables coming loose gt Fasten the cabling to the case using the strain relief clamps provided gt Cut the left and right plastic flaps using an appro gt ii f RERI REEERE priate tool and break them out of the case CE 3 OG
16. ax 250 W 230 V Switch on temperature difference 8K Switch off temperature difference 4K Display LCD display Degree of protection IP 20 DIN 40050 Permitted ambient temperature 0 to 45 C Mounting wall mounting Weight 250g Case recyclable 3 piece plastic case Dimensions L x W x H mm 137 x 134 x 38 Temperature sensors PT1000 1 5 m silicone cable measuring range up to 180 C Fuse 1 6AT 3 9 A s 42 EN 723 812 08 44 43 723 812
17. between the collector T1 and the lower area of the storage tank T2 As soon as the temperature in the collector T1 is 8 K constant fixed value higher than the temperature in the storage tank T2 the following display appears e The sun symbol is displayed If no safety limits prohibit the pump from operating the pump is switched on The following display appears e The pump symbol rotates If the temperature difference falls below 4 K constant fixed value the pump is switched off The sun symbol is no longer shown on the display 7 2 Maximum storage tank temperature The maximum storage temperature function is to prevent the hot water tank from overheating If the lower area of the storage tank T2 reaches the set maximum storage tank temperature factory setting of 60 C charging is stopped A temperature of 3 K below the maximum storage tank temperature must first be reached before charging can be resumed EN The following displays appear e The pump symbol does not move e The sun symbol is displayed e The max indication flashes in the storage tank symbol 7 3 Maximum collector temperature During periods of high solar irradiance the tempera ture T1 of the heat transfer fluid can exceed 130 C The heat transfer fluid evaporates In this case the pump is blocked for protection purposes until the temperature drops below 127 C 4 The following displays appear e The pump symbol does not m
18. ction gt Result of action List Emphasis on Emphasis on issue at hand issue at hand 2 Safety 2 1 Proper usage The temperature differential controller below called controller may only be used for controlling solar ther mal systems within the permissible ambient conditions see chapter 12 2 2 Improper usage The controller must not be operated in the following environments outdoors in damp rooms in rooms where highly flammable gas mixtures can occur in rooms in which the operation of electrical and electronic components may cause dangers to arise EN 2 3 Dangers during assembly and commis sioning The following dangers exist during assembly commis sioning of the controller and during operation in case of assembly errors e risk of death by electrocution e risk of fire due to short circuit e damage to any of the constructional fire safety measures present in the building due to incorrectly installed cables e damage to the controller and connected devices due to improper ambient conditions inappropriate power supply and connecting prohibited devices or faulty devices and incorrect assembly or installation Therefore all safety regulations apply when working on the mains supply Only electricians may perform work that requires opening the controller such as con nection work gt When laying cables ensure that no damage occurs to any of the constructional f
19. gs of the lower case gt Pivot the upper case down and feed the operating buttons through the matching holes gt Fasten the case tightly with the screw 4 2 Mounting Z WARNING Risk of electric shock and fire if mounted in a damp environment gt Only mount the controller in an area where the degree of protection is sufficient 4 2 1 Mounting the controller Z cauTION Risk of injury and damage to the case when drill ing gt Do not use the case as a drilling template Choose a suitable installation site gt Drill the upper fastening hole Screw in the screw Remove the upper case Hang the case in the recess Mark the position of the lower fastening holes Remove the case again e Drill the lower fastening holes Hang the case up again in the recess Screw the case firmly using the lower fastening holes and Mount the upper case 137 2 YYY YV YV VV V V VK y 4 3 Electrical connection AN WARNING Risk of death by electrocution gt Remove the controller from the power supply before opening the case gt Observe all guidelines lawful and regulations of the local electricity supplier NOTE The device is to be connected to the grid by means of a plug with earthing contact or in the case of a fixed electrical install
20. ire safety measures present in the building gt Make sure that the permissible ambient condi tions at the installation site are not exceeded see chapter 12 gt Be sure to comply with the specified degree of protection gt Factory labels and markings may not be altered removed or rendered unreadable Before connecting the device make sure that the power supply matches the specifications on the type plate Make sure that all devices which are connected to the controller conform to the technical data of the controller Secure the device against unintentional commission Ing All work on an open controller must be performed with the mains supply disconnected Protect the controller against overloading and short circuiting 2 4 Detecting faults gt Check the display regularly In case of faults isolate the cause see chapter 9 As soon as it becomes evident that safe operation is no longer possible e g visible damage remove the device from the mains supply immediately Have professional personnel remedy the fault 2 5 Exclusion of liability The manufacturer cannot monitor the compliance to this manual as well as the conditions and methods dur ing the installation operation usage and maintenance of the controller Improper installation of the system may result in damage to property and as a result in bodily injury Therefore we assume no responsibility and liability for EN loss
21. ove e The sun symbol is displayed e The vapour symbol flashes 7 4 Tube collector function Due to its construction the collector temperature T1 can only be inaccurately recorded with vacuum tube collectors in some cases there are no immersion sen sors or the sensor is outside the collector pipe In these cases the solar circuit must be briefly activated at regu lar intervals to transmit the actual heat from the collec tor pipe to the sensor T1 If the tube collector function is activated the controller automatically switches the pump on every 30 minutes for 30 seconds 4 The following display appears e The bottom temperature sensor T1 is shown EN 7 5 Anti freeze function If the anti freeze function is activated the controller switches the pump on as soon as the collector tem perature T1 falls below 5 C The heat transfer fluid is thus pumped through the collector and tries to pre vent refreezing If the collector reaches a temperature of 7 C the pump is switched off again CAUTION System can freeze despite the activated anti freeze function During a power outage the anti freeze function does not operate During long term periods of frost due to restricted water tank heat storage If collectors are mounted in locations exposed to wind gt It is recommended to generally use the heat carrier fluid with antifreeze for Solar Plants Standard antifreeze liquid for solar ene
22. rgy systems also contain an additional corrosion inhibitor The following display appears e The anti freeze symbol is displayed 22 723 812 08 44 X 7 6 Holiday function The holiday function is used to cool down a completely heated storage tank again via the collector The stor age tank can heat up too much e g if no hot water is extracted from the storage tank over an extended period of time holiday and intense solar irradiance A completely heated storage tank subjects the solar energy system to a higher thermal load If the holiday function is activated the storage tank is cooled as follows If the temperature in the storage tank rises up to 10 K below the SET storage tank maxi mum temperature the controller attempts to discharge the lower section of the storage tank to 35 C e g at night To do so the pump is automatically switched on once the collector is 8 K colder than the storage tank If the temperature difference between the coll ector and the storage tank is only 4 K the pump is switched off again 4 The following display appears e The holiday symbol is displayed EN 7 7 Speed control NOTE At the factory the controller is set to speed control on With this setting no pump with integrated electronic control should ever be connected to the output The speed control function controls the settings of the solar circuit pump Speed control oFF Output as switched output
23. rol AbS and differen tial temperature control diF gt Press the button for approx 2 seconds to tog gle between AbS and diF Depending on the AbS or diF setting the following setting options are available gt The display shows the setting diF gt To exit the settings menu press the 44 button The main menu appears gt The display shows the setting AbS gt Press the 44 button to SET the temperature value gt Temperature and AbS flash alternately gt Press the button for approx 2 seconds until only the temperature indicator flashes gt Change the temperature using the 44 or C but tons gt To exit the settings menu press the 44 button The main menu appears 723 812 08 44 35 The controller was conceived for years of continuous trouble free operation Nevertheless faults may occur Maintenance may only be performed by professional personnel 9 Maintenance In most cases however the fault does not lie with the controller but rather with the peripheral components The following description covers the most common problems encountered with the controller gt Only send in the controller with a precise fault description if none of the following faults are present 9 1 Fault causes Z WARNING 2 Risk of death by electrocution gt Remove the controller from the power supply before opening the case
24. the starting tempera ture is achieved that is achieved thermal supply 723 812 08 44 17 EN 6 Commissioning 6 1 Testing the pump CAUTION Damage to pump caused by dry operation gt Make sure that the solar circuit is filled with heat transfer fluid The controller case is closed All connections are properly made The solar energy system is filled Connect the mains supply To switch on the pump set the operating switch to the upper position on gt The display is back lit in red gt on appears on the display After approx 3 seconds on flashes in alternation with the display YY SSS gt To switch off the pump set the operating switch to the lower position off gt The display is back lit in red gt off appears on the display After approx 3 seconds off flashes in alternation with the display 18 723 812 08 44 EN CAUTION The incorrect operating mode may cause the sys tem to shut down or impair proper functioning gt After testing the pump always set the operating switch to automatic operation gt To set the controller in automatic operation move the operating switch to the middle position Auto gt Aut is shown on the display for approx 3 seconds lt Auto 723 812 08 44 19 7 Description of the controller functions 7 1 Switch on switch off temperature dif ference The controller constantly compares the temperatures
25. up to 50 m long 1 5 mm up to 100 m long gt Connect the cables in accordance with the terminal plan 4 3 3 Terminal plan NOTE For any handling of the connecting terminal only adequate tools must be used Any inadequate tool or mechanical over pressure will damage the terminal EN 5 OO USG Display overview CAF T18 MR 10 8 40 a Symbols of the temperature sensors T1 top collector sensor T1 bottom sensor for tube collector function T2 sensor for lower area of storage tank T3 sensor for upper area of storage tank Display for temperature values operating hours and fault symbols e g short circuit interruption see page 38 or SYS system error see page 39 Display for temperature unit C F Operating hours Setting the maximum storage tank temperature max and display of min max temperature values Tube collector function Setting the temperature unit C F Speed control Holiday function see page 34 Anti freeze function see page 33 Symbols pumping plant and circluation of heat transfer fluid Displays message Maximum storage tank temperature has been reached Warning display if faults occur e g short circuit interruption see page 38 or SYS system error see page 39 The maximum temperature of the collector is achieved so the control lor fluid is eventually evaporated The display of
26. y professional personnel in accordance with the applicable regional and transre gional regulations as well as the safety instructions and general instructions within this installation and instruction manual The professional personnel must be familiar with this operation manual The controller is maintenance free Use the controller only after first thoroughly reading and understanding this instruction manual and the safety instructions Adhere to all safety instructions In the event of any ambiguities regarding the operation and alteration of parameters or functions consult pro fessional personnel 1 3 Description of symbols 1 3 1 The structure of the warning notices SIGNAL WORD Aetasenn orth er Type source and consequences of the danger eaten warning symbol gt Measures for avoiding danger 1 3 2 Danger levels in warning notices Danger level Probability of Consequences occurrence resulting from non compliance Imminent Death serious AN DANGER threat of danger bodily injury Possible Death serious AN annie threat of danger bodily injury Possible Minor AN AUTON threat of danger bodily injury CAUTION Possible Property damage threat of danger 1 3 3 Notes Note Note on easier and safer working habits gt Measures for easier and safer working habits 1 3 4 Other symbols and markings Symbol Meaning J Condition for action gt Call to a
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