thermosolar SR14, Installation And Operating Instructions Manual

Page 1: ...Read carefully before installation commissioning and operation Temperature Difference Controller SR 14 Installation and operating instructions applies to SR14 versions V1 V2 V3 V4 SR 14 ...

Page 2: ...modes 25 4 1 Automatic 25 4 2 Manual 25 4 3 Off 25 5 Settings 26 6 Protective functions 29 6 1 Seizing protection 29 6 2 Frost protection 29 6 3 System protection 30 6 4 Collector protection 30 6 5 Col Alarm 30 6 6 Recooling 31 6 7 Anti Legionella 32 7 Special functions 33 7 1 Program selections 33 7 2 Signal V1 33 7 2 1 Type of signal 34 7 2 2 Profile 34 7 2 3 Output Signal 34 7 2 4 PWM off 35 7 ...

Page 3: ...y output 230AC on off 1 PWM 0 10V output for speed control of high efficiency pumps SR14 Version 4 3 temperature sensor inputs 1 electronic relay output 230AC for speed control of standard pumps 1 PWM 0 10V output for speed control of high efficiency pumps When you are unsure which version you have check the type label on the side of the controller If the version is not readable here open the cont...

Page 4: ...ioning and operation of the unit The valid accident prevention regulations the regulations of the local power utility the applicable standards and the installation and operating instructions of the additional system components must also be observed The controller does not under any circum stances replace any safety devices to be provided by the customer Installation electrical connection commissio...

Page 5: ...ccessories Use of the device for other than its intended purpose Operation above or below the limit values listed in the specifications Force majeure Changes additions to or conversion of the unit are not permitted without the written permission from the manufacturer It is likewise not permitted to install additional components that have not been tested together with the unit If it becomes clear t...

Page 6: ... range 40 C to 300 C 3 3 3 3 Permissible cable length of sensors and appliances sensor S1 e g collector sensor 30m sensors S2 and S3 e g storage sensor 10m PWM 0 10V 3m electronic relay 3m mechanichal relay 10m Permissible ambient conditions Ambient temperature for controller operation 0 C 40 C for transport storage 0 C 60 C Air humidity for controller operation max 85 rel humidity at 25 C for tra...

Page 7: ...itoring of the system by means of statistical graphics etc Extensive setting menus with explanations Menu block can be activated to prevent unintentional changes of settings Resetting to factory settings This manual applies to the following different hardware versions SR14 Version 1 3 temperature sensor inputs 1 relay output 230AC on off SR14 Version 2 3 temperature sensor inputs 1 electronic rela...

Page 8: ...sensors and immersion sleeves Additionally available Pt1000 temperature sensors immersion sleeves overvoltage protection B 6 Disposal and pollutants The unit conforms to the European RoHS directive 2002 95 EC for the restriction of the use of certain hazardous substances in electrical and electronic equipment Caution The unit must not under any circumstances be disposed of with ordinary household ...

Page 9: ... under any circumstances Depending on the specific application additional system components and safety components may be mandatory such as check valves non return valves safety temperature limiters scalding protec tors etc and must therefore be provided 1 2 3 4 5 6 7 Solar with storage tank Solar with Pool Solid fuel boiler with storage Raising of heat circuit Thermostat T Universal 8 Stop valve S...

Page 10: ...ing so 4 Hold the lower part of the housing C 1 2 up to the selected position and mark the 2 mounting holes Make sure that the wall surface is as even as pos sible so that the housing does not become distorted when it is screwed on 5 Using a drill and size 6 bit drill 2 holes at the points marked on the wall and push in the plugs Also possible is the installa tion with 4 drill holes 6 Insert the u...

Page 11: ...ains voltage cables only into the right hand side The customer must provide an all pole disconnecting device e g a heating emergency switch The cables being connected to the unit must not be stripped by more than 55mm and the cable jacket must reach into the housing just to the other side of the strain relief We recommend the use of flexible cables to ease the installation in the clamp room Cautio...

Page 12: ...tons while inserting see fig C 2 1 c When using solid cable or end splice just push the cables in see fig C 2 1 d 6 Plug Female connectors into onboard headers 7 Hinge the upper part of the casing on the top of the lower part and close the casing gently 8 Fasten with screw 9 Switch on mains voltage and place controller in operation Installation C 2 1 e C 2 1 c C 2 1 d screw driver ...

Page 13: ...le temperature range Caution The line of S1 can be extended if needed to a maximum of 30m using a cable with a cross section of at least 0 75mm The lines of S2 and S3 can be extended if needed to a maximum of 10m using a cable with a cross section of at least 0 75mm Make sure that there is no contact resistance Caution The temperature sensor cables must be routed separately from mains voltage cabl...

Page 14: ... Version 1 3 The PE protective conductor must be connected to the PE metal terminal block Low voltage max 12VAC DC connection Terminal Connection for S1 2x Sensor 1 collector S2 2x Sensor 2 pool S3 2x Sensor 3 optional The polarity of the sensors S1 S3 is freely selectable V1 0 10V or PWM SR14 Version 3 4 Mains voltages 230VAC 50 60Hz Terminal Connection for L Mains phase conductor L N Mains neutr...

Page 15: ... must be connected to the PE metal terminal block Low voltage max 12VAC DC connection Terminal Connection for S1 2x Sensor 1 storage S2 2x Sensor 2 storage S3 2x Sensor 3 optional The polarity of the sensors S1 S3 is freely selectable V1 0 10V or PWM SR14 Version 3 4 Mains voltages 230VAC 50 60Hz Terminal Connection for L Mains phase conductor L N Mains neutral conductor N R Pump phase conductor L...

Page 16: ...ff sensor Installation Low voltage max 12VAC DC connection Terminal Connection for S1 2x Sensor 1 storage S2 2x Sensor 2 backward flow S3 2x Sensor 3 optional The polarity of the sensors S1 S3 is freely selectable V1 0 10V or PWM SR14 Version 3 4 Mains voltages 230VAC 50 60Hz Terminal Connection for L Mains phase conductor L N Mains neutral conductor N R Valve phase conductor L N Valve neutral con...

Page 17: ... 1 control S2 2x Sensor 2 reference S3 2x Sensor 3 optional The polarity of the sensors S1 S3 is freely selectable V1 0 10V or PWM SR14 Version 3 4 Mains voltages 230VAC 50 60Hz Terminal Connection for L Mains phase conductor L N Mains neutral conductor N R Pump phase conductor L N Pump neutral conductor N R Break contact SR14 Version 1 3 The PE protective conductor must be connected to the PE met...

Page 18: ...lectable V1 0 10V or PWM SR14 Version 3 4 Mains voltages 230VAC 50 60Hz Terminal Connection for L Mains phase conductor L N Mains neutral conductor N R Pump phase conductor L N Pump neutral conductor N R Break contact SR14 Version 1 3 The PE protective conductor must be connected to the PE metal terminal block D 9 Solar with heat exchanger and pool Sensor side max 12V Caution Mains side 230AC Dang...

Page 19: ...aved The function of each of the other three keys 3 is shown in the display line di rectly above the keys the right hand key generally has a confirmation and selection function Examples of key functions increase reduce values scroll menu down up yes no approve reject Info additional information Back to previous screen ok confirm selection Confirm confirm setting Operation E 1 Display and Input Dis...

Page 20: ...ck step by step to the selection mode thus cancelling the commissioning help Finally under operating mode menu 4 2 Manual should be used to test the switch outputs with the consumers connected and to check the sensor values for plausibility Then switch on automatic mode The first time the controller is turned on and after the language and time are set a query appears as to whether you want to para...

Page 21: ...control of the system with operating hours etc Select graphics mode or overview mode Automatic mode manual mode or switch unit off Set parameters needed for normal operation Solar and frost protection recooling anti seizing protection Program selection sensor calibration clock additional sensor etc Against unintentional setting changes at critical points For diagnosis in the event of an error Sele...

Page 22: ...lay instead of the measurement value then there may be a defective or incorrect temperature sensor If the cables are too long or the sensors are not placed optimally the result may be small deviations in the measurement values In this case the display values can be compensated for by making entries on the controller Follow the instructions under 7 3 What measurement values are displayed depends on...

Page 23: ...o the controller various time ranges day year are available 2 2 Average temperature difference T Display of the average temperature difference between the reference sensors of the solar system with the consumer switched on 2 3 Heat output Display of the heat output of the system This menu can only be selected however when the function 7 8 Heat quantity is activated 2 4 Graphic overview This provid...

Page 24: ...ulic systems are depicted graphically with the measured temperatures and operating states of the connected consumers 3 2 Overview In overview mode the measured temperatures and operating states of the connected consum ers are depicted in text form 3 3 Alternating In alternating mode the schematic mode and then the overview mode are active for 5 seconds at a time 3 4 Eco Mode Eco mode switches the ...

Page 25: ...hus the connected consumer are switched on and off by pressing a key with no regard to the current temperatures and the parameters which have been set The measured temperatures are also shown to provide an overview and function control 4 3 Off When the operating mode Off is activated all controller functions are switched off This can lead for example to overheating on the solar collector or other ...

Page 26: ...alue by 5K then the pump and or valve is switched off again Setting range from 0 C to 99 C default setting 20 C solid fuel boiler 60 C 5 4 Tmax S2 Switch off temperature at sensor 2 If this value is exceeded at sensor 2 and the other conditions are also met then the controller switches the pump and or valve off If sensor 2 falls below this value again and the other conditions are also met then the...

Page 27: ... temperature reaches Tref Off 2 value Cooling 1st value higher than the 2nd value If the temperature exceeds Tref On 1 value at sensor 1 and the thermostat function is enabled see 5 5 the relay for cooling is switched on until the temperature drops below Tref Off 2 value Settings range Tref On 10 C 90 C Default 50 C Tref Off 20 C 99 C Default 60 C Switching condition Temperature difference for rel...

Page 28: ...seconds in the main menu While this mode is active the sys tem heats up to the reference Tref Off regardless of preset thermostat times The mode is ended once the required temperature is reached 5 22 Tmax S3 Switch off temperature at sensor 3 If this value is exceeded at sensor 3 and the other conditions are also met then the controller switches the relay off If sensor 3 falls below this value aga...

Page 29: ...tion solar only A two stage frost protection function can be activated In stage 1 the controller switches the pump on for 1 minute every hour if the collector temperature drops below the set value Frost stage 1 If the collector temperature drops further to the set value Frost stage 2 the controller switches the pump on continuously If the collector temperature then exceeds the value Frost stage 2 ...

Page 30: ...nly If this temperature is exceeded at the collector sensor when the solar pump is on a warning or error message is triggered A warning message is shown in the display Collector alarm settings range on off Default off Col alarm setting range 60 C to 300 C Default 150 C Collector protection prevents overheating of the collector The pump is switched on to transfer heat from the collector to the stor...

Page 31: ...ecool Tsetpoint and the collector is at least 20 C cooler than the storage tank and until the storage tank temperature has dropped below the value Recool Tsetpoint Recooling settings range on off Default off Recooling Tset settings range 0 C to 99 C Default 70 C Caution This function causes energy to be lost via the collector The recooling should only be activated in exceptional cases 6 6 Recoolin...

Page 32: ...age tank is heated up over the set value Tmax S2 which can lead to scalding and damage to the system This anti Legionella function does not provide complete protection against Legionella because the controller is dependent on sufficient energy being fed in and it is not possible to monitor the temperatures in the entire range of the storage tanks and the connected piping system To provide complete...

Page 33: ...cted and set here see section D Hydraulic variants The associated diagram can be displayed by pressing info Setting range 1 9 default value 1 Caution Normally the program selection is made only once during initial commissioning by the specialist Incorrect program selection can lead to unpredictable errors Caution Menu enumerations may vary according to SR14 version used When selecting this submenu...

Page 34: ... pumps via output V1 e g High efficiency pumps by means of a PWM signal Relay output R1 230AC is switched on for power supply when output V1 is switched on 7 2 2 Profile In this menu preconfigured profiles for various pumps can be selected Alternatively all settings can be done manually Please note that individual settings are still possible even when a profile has been selected Special functions ...

Page 35: ...lt setting 100 Heating 0 to 50 Default setting 0 When Output signal PWM is selected When Output signal 0 10V is selected 7 2 4 0 10V off This voltage is put out when the pump is turned off Pumps that can detect cable break need a minimum voltage Settings range Solar 0 0 to 5 0 V Default setting 1 0 V Heating 5 0 to 0 0 V Default setting 4 0 V 7 2 5 0 10V on This voltage is needed to turn the pump ...

Page 36: ...alculated and displayed speed of the pump If e g 30 is set here and the signal set in PWM on 0 10V on is put out 30 speed is displayed When the signal set in PWM max 0 10V max is put out 100 speed is displayed Everything in between is calculated accordingly Settings range 10 to 90 Default setting 30 Caution This function has no influence on the regulation but changes only the speed displayed 7 2 8...

Page 37: ... 8 b Technical data PWM and 0 10V PWM 20 to 100 1kHz Designed for a load of 10K Ohm Technical data PWM Technical data 0 10V 0 10V 2V to 10V 20 to 100 Designed for a load of 10K Ohm 10V 100 Speed 5V 50 Speed 2V 20 Speed 0V Off ...

Page 38: ...sensors is greater than the set value Switch on temperature difference T R1 then the speed is increased If the controller has adjusted the speed of the pump down to the smallest stage and the T between the reference sensors is T off the pump is switched off Mode V2 After the purging time the controller switches to the set min speed If the temperature difference T between the reference sensors coll...

Page 39: ...he flow rate can be determined Settings range 70 to 100 Default setting 100 Caution Caution The indicated percentages are guide values that may vary to a greater or lesser extent depending on the system pump and pump stage 100 is the maximum voltage frequency of the controller The indicated percentages are guide values that may vary to a greater or lesser extent depending on the system pump and pu...

Page 40: ...lues can lead to unpredictable errors 7 6 Commissioning Starting the commissioning help guides you in the correct order through the basic set tings necessary for commissioning and provides brief descriptions of each parameter in the display Pressing the esc key takes you back to the previous value so you can look at the selected setting again or adjust it if desired Pressing the esc more than once...

Page 41: ...g data is only approximate value for function control 7 8 2 AF type Adjust the type of glycol that is being used in the system Settings range Ethylene Propylene default setting Ethylene 7 8 3 Glycol portion Adjust the percentage of glycol that is being used in the system Settings range 0 60 default setting 45 7 8 4 Flow rate Adjust the flow rate according to the system Settings range 0 100 l min d...

Page 42: ...Purging time so that the medium to be measured can be moved to the collector sensor If this still does not result in a normal switch on condition then the start help function is subject to a 5 minute lockout time Start help setting range on off default setting off Purging time setting range 2 30 sec default setting 5 sec Increase setting range 1 C 10 C default setting 3 C min Caution This function...

Page 43: ...s listed below remain completely accessible despite the menu lock being activated and can be used to make adjustments if necessary 1 Measurement values 2 Analysis 3 Display mode 7 2 Time date 8 Menu lock 9 Service values To lock the other menus select Menu lock on To enable the menus again select Menu lock off Setting range on off default setting off Menu lock 8 Menu lock ...

Page 44: ...the error occurs e g in the table The menu can be closed at any time by pressing esc Service values Menu 10 Language can be used to se lect the language for the menu guidance This is queried automatically during initial commissioning The choice of languages may differ however depending on the device design Language selection is not available in every device design 10 Language Language ...

Page 45: ...g or info symbol Do not try to deal with this yourself Consult a specialist in the event of an error Malfunctions Error messages Notes for the specialist Sensor x defective Either the sensor the sensor input at the controller or the connecting cable is was defective Resistance table on page 5 Collector alarm The collector has exceeded the temperature set under menu 6 5 On Off too often The solar p...

Page 46: ...nal source of the error e g pump and exchange it Then first recommission the controller and check the function of the switch outputs in manual mode as described under 4 2 Repairs and maintenance may only be performed by a specialist Before working on the unit switch off the power supply and secure it against being switched on again Check for the absence of power Only use the supplied spare fuse or...

Page 47: ...ntenance Performing maintenance Check the date and time see 7 4 Time and Date on page 40 Assess check plausibility of analyses see 2 Statistics on page 23 Check the message log see 2 5 Message log on page 23 Verify check plausibility of the current measurement values see 1 Measurement values on page 22 Check the switch outputs consumers in manual mode see 4 2 Manual on page 25 If necessary Optimis...

Page 48: ...ed by Final declaration Although these instructions have been created with the greatest possible care the possibility of incorrect or incomplete information cannot be excluded Subject as a basic principle to errors and technical changes STDC_ST_English 12353 ...