Οδηγίες χρήσης και εγκατάστασης EU 402N
Contents
1. 5 5 IV Service MENU 4 a aa thelist Diagram 2 11 Bae a AA eso AGE ALAS 0 424 Diagram 10 Diagram 5 11 mr 10 11 IV 7 Diagram 11 11 IN 20 ADAGE Ares lisse Mestre esd 12 Diagrami 13 Wat Diagram 14 117 12 11 14 IV ACCUMUlATOF seers ci chest aN 15 IV b 1 Set point temperature 4 15 IV b 2 Maximum Temperate ards 2 iccseneetataccseadasascincate dusdteeertageane eee 15 15 IV b 3 Cooling down to set point 152. sees 15 IV c 1 Adjustable or fixed PUMP 15 IV c 2 Maximum temperature Of 15 IV c 3 Delta value for activation Of solar 16 IV c 4 Delta value for deactivation of solar 16 IV c 5 Delta value for MAXIMUM 16 IV Temperature at which speed control is 16 Table of Contents ST 402N user s manual 26 IV c 7 Minimum operating speed for solar 16 IV c 8 Maximum operating speed 16 IV c 9 Transmission Coefficient ee 16 IV 10 Circuit sampling activation threshold pp 16 IV C e io en eaa enebi 17 5 O dae ees OA eee 17 IV 4 1 Circulation PumP Ne 17 IV 4 2 PLT Pellet Boiler Fire UpP Ne 17 Heater ai ge ee 19 IV 4 4 Cooling with hot water 47 2 1 19 IV 4 5 Contact not the same setting as the 19 IV 4 6 Temperature threshold 2 2
3. or until the collector temperature the tank temperature equalize in which case the pump is restarted when the temperature at the collector rises above the tank temperature by the value of solar pump delta Once the pump is shut off after the setpoint temperature has been reached it will be restarted if the temperature drops below the setpoint value by the value of tank hysteresis the hysteresis value is set with SERVICE MENU gt Accumulation Tank gt Storage Hysteresis 2 Collector Defrosting With this function you can manually start the collector pump in order to 6 melt snow built up on the solar panels The mode remains active for a period defined by the user Then the controller returns to the automatic mode the defrosting time is set with SERVICE MENU gt Solar Collector gt Defrosting Time The function can be deactivated manually by selecting another operation mode 3 Holiday Mode When the holiday mode is enabled during daytime hours from 6 a m until 10 p m the pump runs as in the automatic mode whereas during night hours from 10 p m until 6 the pump is started only if the collector temperature is lower than the tank temperature so that the tank can be cooled ATTENTION gt You can change the daytime cycle and night cycle activation hour using the DAY FROM and NIGHT FROM settings lt 4 Manual Mode In this function the user can enable or disable by pr
4. 2 24 19 Service 19 IVe FN SOURIS 19 19 Va ne eae eee 19 1 S A ENE 20 VI ASSOMDIV ira e aa DEERE EEEE EE AE EA ERE R 21 We are committed to protecting the environment Manufacturing electronic devices imposes an obligation of providing for environmentally safe disposal of used electronic components and devices Hence we have been entered into a register kept by the Inspection For Environmental Protection The crossed out bin symbol on a product means that the product may not be disposed of to household waste containers Recycling of wastes helps to protect the environment The user is obliged to transfer their used equipment to a collection point where all electric and electronic components will be recycled lt 77 User s Manual All faults should be reported to TECH Wieprz 1047 34 122 Wieprz Tel 48 33 8759380 48 33 8705105 48 33 8751920 48 33 8704700 Fax 48 33 8454547 serwis techsterowniki pl Monday Friday 7 00 16 00 Saturday 9 00 12 00 WWW TECH REG COM
5. C 200 C Measurement accuracy 1 C Ambient temperature 5 C 50 C Load on each output 1A Fuse element 3 15A VIII Assembly NOTE Installation should be performed by a properly qualified electrician Do not install the unit with the power on make sure that the plug is disconnected from the mains 23 ST 402N user s manual 24 Collector Installation Block Diagram N Solar collectors Collector pump ST 402 control panel Hot water storage a boiler ee cre Conk ees Principle of Operationens 5 Main III b Operation ate ea eee III c Preset temperature Heating ae T Bae Alarm
6. be active 6 6 12 Installation 6 12 supports gt collector pump switching valve gt two accumulator tanks gt direction in the position of the collectors gt additional peripherals Installation sensors gt collector sensor gt accumulator tank sensors Additional installation options gt set point temperature for tank 2 If the preset temperature of the first tank is reached the valve will activate the second tank circuit You can use this function to enter the set point temperature of the second 10 tank gt hysteresis value for tank 2 After the set point temperature is reached the pump will be switched off The pump will be turned on again if the tank temperature falls below the set point temperature by the hysteresis value for tank 2 gt valve hysteresis This setting affects the control of the valve during the operations of cooling the collector in summer or emergency mode and when defrosting The valve hysteresis value determines the temperature difference between the tanks at which the valve is switched over to the opposite tank gt maximum temperature for tank 2 With this option you can enter the maximum permissible safe temperature up to which the second tank can be heated up in the event of the collector getting overheated IV a 7 Diagram 7 12 Installation 7 12 supports gt two collector pumps gt two accumulator tanks
7. called 2 overheating mode and the display will show the following symbol The pump will start to run to cool down the collector until the maximun ol unit temperature is reached or until the collector temperature drops by the alarm hysteresis value see SERVICE MENU gt Solar collector gt Alarm hysteresis When there are two tanks both are used to cool down the overheated collector simultaneously or sequentially depending on the settings of the operation algorithm 3 Protection of the heat storage unit In the event of the collector getting overheated each tank can heat up to no more than preset safe maximum temperature After reaching this temperature the pump of the respective tank is stopped if two tanks with a valve are used the flow is switched over to the other tank 3 Fuse The controller includes a WT 3 15A tubular fuse to protect the mains NOTE Do not use a fuse with a higher rating Using a fuse of higher amperage may cause damage to the controller 22 Vil Maintenance Before and during the heating season the ST 402 controller must be checked for the technical condition of the wires You should also check the mounting of the controller clean it of dust and other contamination Technical specifications of ST 402 controller Power supply voltage 230V 50Hz 10 Temperature adjustment range 8 C 90 C Power consumption max 4W Temperature resistance of PT 1000 sensors 30
8. for more precise measurement of energy being obtained IV i 1 Flow Here the amount of glycol which flows through the pump per hour should be specified IV i 2 Medium type This function allows for identification of the medium involved ethylene glycol or propylene glycol IV i 3 Glycol portion Specify the percentage concentration of glycol in water here 1 4 Offset This function enables correction of the heat measurement settings Temperature measurement takes place in the temperature installation sensor point There is a possibility of deviations in the flow and temperature measurement at the return from the container ST 402N user s manual IV j nformation Selecting this option displays the logo of the controller s manufacturer and the current program version V Security In order to ensure maximum security and failure free operation the controller includes a number of safeguards 1 Installation sensor protection If one of the sensors fails a beep will be sounded and the following symbol will be shown on the right side of the display additional icon will start to flash replacing the temperature reading of the defective sensor to alert the user that the sensor is disconnected or damaged To disable the alarm signal in sensor fault mode press the EXIT button 2 Protection against overheating of the collector If the maximum alarm temperature is reached the controller will go into the so
9. g possibility to connect additional contactor to control 20 any electrical circuit When any temperature sensor reaches the preset deactivation temperature maximum or minimum the module will automatically send a text message with such information It is similar in the case of a short circuit or opening of contact input which may be used e g for simple protection of property If ST 402 controller is equipped with an additional GSM module in order to activate this device it is required to start the activated option MENU gt Installer menu gt GSM module gt Activated IV h Service menu The options of this submenu will allow you to select your own PIN code enable the option to allow you enter the service settings by using the key combination exit pulser and disable the acoustic signal that goes off during an alarm IV h Settings When this option is selected a screen will be displayed where you can save or load your personal settings or return to factory settings Load service settings after pressing this option you will be able to load previously selected service settings Save service settings you can use this option to save the current settings of the controller so that after changing any parameters you can easily return to your saved settings Load factory settings this feature allows you to restore factory settings A IV i Energy calculation Correctly entering the following values will allow
10. lt CD CS Nn D IMINMOYSLSHOSL ST 402N user s manual Declaration of Conformity No 35 2010 Hereby we declare under sole responsibility that the ST 402N 230V 50Hz thermoregulator manufactured by TECH W 34 120 Andrychow is compliant with the Regulation by the Ministry of Economy Journal of Laws Dz U 155 Item 1089 of July 21 2007 implementing provisions of the Low Voltage Directive LVD 2006 95 EC of January 16 2007 The 5 402 controller has been tested for electromagnetic compatibility EMC with optimal loads applied For compliance assessment harmonized standards were used PN EN 60730 2 9 2006 Pawe Jura Janusz Master High voltage Make sure the regulator is disconnected from the mains before working on the power supply cable connections device installation etc All connection works must only be carried out by qualified electricians Before activating the controller measure the motor resetting efficiency and inspect wire insulation THE DEVICE MAY DAMAGED IF STRUCK BY A LIGHTNING MAKE SURE IT IS UNPLUGGED DURING STORMS eure Intended Use The ST 402 thermoregulator is intended for use with solar collectors in different configurations The device is used to control collector pumps or a pump and a valve based on a temperature measurement at the solar batter
11. the pump after growth of the collector temperature by at least 3 C IV d 4 Delta value for activation of solar pump This function is used to set the difference between the temperatures of the collector and the tank at which the pump will start to run threshold value for pump activation IV c 5 Delta value for deactivation of solar pump This function is used to set the difference between the temperatures of the collector and the tank at which the pump will turn off so as not to cool down the tank IV d 6 Transmission coefficient This parameter is active only when the pump is in adjustable speed mode When the conditions for turning the pump on are met it will initially run at minimum speed minimum operating speed of solar pump Then the pump speed will increase according to the setting of this coefficient which determines at how many C of temperature difference between the collector and the tank the pump is to increase its speed by 10 IV e Peripherals You can connect and configure the settings of an additional piece of equipment If no additional piece of equipment is present select NONE off The following shows three additional available pieces of equipment and examples of connections that can be operated with all available installation diagrams IV e 1 Circulation Pump Once the device is selected set the periodical duty time and pause time for the pump during its activity hours Then define periods in which the pu
12. at which forced start up will take place in order to cool down the solar panels Warm water discharge will occur regardless of the preset temperature of the tank The pump will work until its temperature falls below the alarm temperature by the 16 alarm hysteresis value SERVICE MENU gt Solar collector gt Alarm hysteresis or until the tank reaches the maximum acceptable temperature SERVICE MENU gt Accumulation tank gt Tank 1 max temp IV c 2 Heating minimum temperature It is the collector s threshold temperature below which the pump does not activate The exception are emergency modes manual operation or collector defrosting IV c 3 Anti freeze temperature Owing to different freezing temperature of the fluid in the solar installation Tank Addifiond Addi f onal TANK SENSOR COLLECTOR SENSOR Antifrost temperature has been introduced This parameter determines minimum safe temperature at which liquid glycol does not freeze temperature measured on the collector In the case of significant collector temperature drop down to the value of this parameter the pump will be activated and will work continuously until heating the collector up to a safe temperature The settings range of this coefficient is within 50 10 C IV c 4 Alarm hysteresis Using this function the user declares the collector s alarm hysteresis value If the tank reaches the alarm temperature the overheating tempera
13. ator tank boiler return circuit direction in the position of the collectors gt additional peripherals Installation sensors gt collector sensor gt two sensors of accumulator tank gt boiler return circle The installation is equipped with a valve which when excess hot water is found in the tank will switch over to the boiler return circuit to reheat it release excess heat which will result in solid fuel savings Additional installation options gt release threshold This parameter is used to set the threshold temperature of the tank at which the valve switches over to boiler return reheating mode gt release hysteresis When the release threshold temperature is reached the valve will activate the boiler return circuit The valve will switch back to its previous setting after the tank cools down by the release hysteresis value 14 IV a 11 Diagram 12 12 Installation 12 12 supports gt two colectors pump pumps operate independently each according to its own circulation system gt accumulator tank gt two directions in the positions of the collectors additional heat receiver gt switching valve Instalation sensors gt two collector sensors gt sensors of the accumulator tank additional heat exchanger sensor Note Not selectable peripherals option is grayed out in the main menu In the peripherals place is connected switc
14. ature temperatures of all additional sensors depending on configuration To the right of the screen the following icons are displayed ST 402N user s manual 1 Icon of the active operation mode Automatic operation mode s Collector defrosting mode h Holiday mode 145 Collector overheating alarm mode F Sensor failure alarm mode 2 Icon of the active optional device peripherals Circulation pump Ala PLT pellet boiler fire up Sy Heater When of the sensors is damaged an additional icon starts to flash in the area where the temperature of the damaged sensor is normally displayed to indicate which sensor has been disconnected or damaged In addition to the above a pump icon revolves if in operation or and valve icon with an indication of the current circulation route is displayed on the system configuration diagram Operation Mode With this function you can select an operation mode 1 Automatic mode In the automatic mode the pump is running if the minimum temperature difference between the collector and the tank is reached the temperature difference at which the pump is started is defined by the So ar Pump Delta function in SERVICE MENU gt Accumulation Tank gt Solar Pump Delta The pump continues to run until the setpoint temperature is reached the setpoint temperature is set with SERVICE MENU gt Accumulation Tank gt Setpoint Temperature
15. ed simultaneously IV a 8 Diagram 8 12 Installation 8 12 supports gt collector pump gt second tank pump gt two accumulator tanks one direction in the position of the collectors additional peripherals Installation sensors gt collector sensor gt two sensors of the main accumulator tank sensor of the additional accumulator tank Additional installation options gt set point temperature for tank 2 This function is used to enter the set point temperature of the second tank After this temperature is reached the tank 2 pump collector pump 2 will turn off gt hysteresis value for tank 2 After the set point temperature is reached pump 2 will turn off Pump 2 will turn on again if the tank temperature falls below the set point temperature by the hysteresis value for tank 2 gt delta value for pump 2 This function is used to set the difference between the temperatures of tank 1 and tank 2 at which pump 2 will start to work threshold value for the activation of pump 2 gt maximum temperature for tank 2 With this option you can enter the maximum permissible safe temperature up to which the second tank can be heated up in the event of the collector getting overheated operation algorithm With this option you can select pump operation modes The pumps can be operated in the following modes a priority for tank 1 tank 1 is heated first only pump 1 is active and after the set point temperat
16. emperature drops below its preset temperature the contact will be shorted and the additional piece of equipment will be turned on Once the limit temperature is reached again the contact will be opened and the equipment will be turned off Above if the boiler tank temperature rises above its preset temperature the contact will be shorted and the additional piece of equipment will be turned on Once the temperature drops back to its threshold value setting the contact will be opened the equipment will be turned off IV g GSM module NOTE Controlling of this type is possible after purchasing and connecting to the controller the additional control module ST 65 which is not attached to the regulator as a standard feature The GSM module is an optional device cooperating with the boiler controller enabling remote control of the boiler operation with the use of a mobile phone The User is notified with a text message on each alert of the boiler controller and by sending an appropriate text message at any time he or she receives a return message with the information on the current temperature of all sensors After entering an authentication code it is also possible to remotely change the set temperatures The GSM module can also operate independently from the boiler controller It has two inputs with temperature sensors single contact input for use in any configuration detecting short circuit opening of contacts and one controlled output e
17. essing the menu the following solar pump second solar pump or switching valve optional device voltage free signal e g for firing up of a pellet boiler III c Peripherals Depending on the settings in the service menu you may see an option displayed here that will allow you to change specific parameters for your selected peripheral Circulating pump Lighting of pellet boiler Heater Output setting identical to solar pump i Output in reverse setting to solar pump Temperature threshold output III d Clock With this function you can set the current time according to which the controller is to operate III e Backlight This item is used to adjust the display brightness Adjustments will be made after about ten or so seconds of inactivity III f Language Version You can select the language version for the controller III g Alarm sound This feature allows you to enable or disable the audio signal that goes off when an alarm is activated III h Energy calculation This function allows the user to see value describing the following Fe ST 402N user s manual parameters total energy obtained as a result of the solar collector operation total pump operation time Information When this option is selected the logo of the manufacturer is displayed together with the software version IV Service Menu To access the service settings select the SERVICE MENU option and then u
18. gt one direction in the position of the collectors gt additional peripherals Installation sensors collector sensor gt accumulator tank sensors Additional installation options set point temperature for tank 2 This function is used to enter the set point temperature of the second tank After this temperature is reached collector pump 2 will turn off gt hysteresis value for tank 2 After the set point temperature is reached the pump will turn off The pump will turn on again if the tank temperature falls below the set point temperature by the hysteresis value for tank 2 gt maximum temperature for tank 2 With this option you can enter the maximum permissible safe temperature up to which the second tank can be heated up in the event of the collector getting overheated gt delta value for pump 2 This function is used to set the difference between the temperatures of the collector and the second tank at which pump 2 will start to work threshold value for pump activation operation algorithm With this option you can select pump operation modes The pumps can be operated in the following modes a priority for tank 1 tank 1 is heated first only pump 1 is active and 11 ST 402Nuser smanual after the set point temperature is reached pump 2 will turn on to heat tank2 parallel operation the pumps operate independently each within its own range as per settings and both tanks are heat
19. he same setting as the pump is selected then whenever the pump runs the potential free contact will be shorted the additional device will be switched on Otherwise when the icon is unchecked whenever the solar pump is turned on the contact will be opened 19 ST 402N user s manual IV e 6 Cooling with hot water pump This is a peripheral which operates outside time ranges that is to say without stopping at any time The operation of the peripheral requires sensor 4 installed at external hot water tank This feature cannot be used when all sensors are used under your selected diagram A tank sensor is also required for its operation if two tank sensors are present it is the upper sensor If the above criteria are met the peripheral will be switched on contact shorted if gt the temperature of the tank during growth exceeds its maximum temperature minus the delta value for activation of cooling and runs until the temperature drops below the maximum temperature of the tank minus the delta value for deactivation of cooling both parameters are set in the menu the tank temperature is higher than the hot water temperature A fixed hysteresis of 3 degrees is used here IV e 7 Temperature threshold output Once this function is enabled the operation of the additional piece of equipment will depend on the temperature of the boiler tank A boiler tank temperature limit must be set here Below if the boiler tank t
20. hing valve which supports additional receiver Additional installation options maximum temperature of additional receiver maximum temperature for tank 2 With this option you can enter the maximum permissible safe temperature up to which the heat receiver can be heated up in the event of the collector getting overheated hysteresis of additional receiver hysteresis value for tank 2 When the release threshold temperature is reached the valve will activate the boiler return circuit The valve will switch back to its previous setting after the tank cools down by the release hysteresis value ec ee TANK SENSOR COLLECTOR SENSOR Switching valve 15 ST 402N user s manual IV b Accumulator tank When in this menu you can set all the parameters of the tank thermal storage unit IV b 1 Set point temperature This function is used to adjust the preset temperature of the storage unit After this temperature is reached the collector pump will turn off IV b 2 Maximum temperature With this option you can enter the maximum permissible safe temperature up to which the tank can be heated up in the event of the collector getting overheated If the collector temperature reaches the alarm overheating temperature the pump will switch on automatically to cool down the heated collector regardless of any set point temperatures The pump will run until the maximum storage unit temperature i
21. ies and at the accumulation tank two tanks It is also possible to connect optional devices circulation pump electric heater or send a fire up signal to the central heating boiler It is possible to control the circulation pump and input a fire up signal into the central heating boiler directly from the controller In case of the heater it is required to fit an additional signal relay ll Principle of Operation Description of the control panel in a sample configuration SWITCHING COLLECTOR VALVE TEMPERATURE COLLECTOR 2 35 COLLECTOR 2 PUMP TEMPERATURE OPERATION HEAT MODE STORAGE OPERATION MODE TEMPERATURE OPTIONAL DEVICE ACTIVATED EXIT MENU MINUS ate The device is controlled with an buttons Entering to main menu or confirming the settings is followed by pressing the menu button Using the Plus and Minus button customer can easily navigate in each menu To accept the selected submenu press the Menu button To go to the main page or higher menu level use the Exit button All settings are changed in the same manner lll User s Menu Main Page During normal operation the graphic display shows the Main Page that contains apart from the selected configuration the following information Operation mode or type of alarm current time collector temperature current heat storage temper
22. mp will be active using the From Hour and Until Hour functions If the same time is entered from until the device will run non stop 18 2 PLT Pellet Boiler Fire Up Tank Addifiond Addifiond Free voltage contact Pump With this option you can set a voltage free signal intended to fire up the pellet boiler Set the activation delta i e the difference between the setpoint temperature and actual temperature of the storage that if reached will cause the controller to send a signal to fire up the boiler Then define a period in which the function will be active using the From Hour and Until Hour functions IV e 3 Heater The heater is used to electrically heat the tank The principle behind its operation is similar to one described in the previous case although the heater is to be connected with an additional contactor Set the activation delta the difference between the setpoint temperature and actual temperature of the storage below which the controller will start the heater Then define a periodin which the heating function will be active using the From Hour and Until Hour functions Additional Ad ditional rae eae SENSOR COLLECTOR SENSOR contactor HEATER 230V 230V IV e 5 Contact not in the same setting as the pump This setting determines the behaviour of the potential free contact If the icon contact in t
23. or delta Only on heating circuit is active in this configuration The switching valve is to switch the circuit onto the collector which currently has y gt gt gt 9 ST 402N user s manual temperature higher by at least the collector delta value temperature difference between the two collectors IV a 5 Diagram 5 12 4 Installation 5 12 supports gt collector pump gt booster pump Pump 2 gt accumulator tank gt one direction in the position of the collectors additional peripherals Installation sensors gt collector sensor gt two KTY sensors of accumulator tank gt boiler temperature sensor Additional installation options delta value for activation This installation model includes an additional circuit for heating up the tank using the central heating boiler If the tank temperature is lower than the set point temperature of the tank by at least the set point value of activation delta which is the difference between the set point and current temperatures of the tank the booster pump from the boiler will be activated to reheat the accumulator tank provided that the temperature of the boiler is higher than the temperature of the tank This setting will be active only between the times set by the user from to gt from to These settings are used to enter the times from to when the central heating boiler circuit used to the heat up the accumulator tank is to
24. rs gt additional peripherals Installation sensors collector sensor two sensors of accumulator tank Additional installation options valve hysteresis The tank will be first heated up at its top section where hot water for domestic use is collected and after that part of the tank has been heated up the valve switches the circulation system over to the second part of the tank The valve will switch back to its previous setting after the prioritized part of the tank cools down by the valve hysteresis value temperature difference between the two parts of the tank IV a 3 Diagram 3 12 Installation 3 12 supports gt two collector pumps the pumps function independently each according to its own circulation system gt accumulator tank gt two directions in the positions of the collectors gt additional peripherals Installation sensors two collector sensors gt accumulator tank sensor Note The settings of the solar collector options SERVICE MENU gt SOLAR COLLECTOR apply equally to the collectors positioned in both directions 4 Diagram 4 12 1 t 3 Insta ation 4 12 supports collector pump N switching valve accumulator tank two directions in the positions of the collectors additional peripherals Installation sensors gt two collector sensors gt accumulator tank sensor Additional installation options collect
25. s reached or until the collector temperature drops by the alarm hysteresis value see SERVICE MENU gt Solar collector gt Alarm hysteresis IV b 3 tank temperature This parameter is for declaring the minimum acceptable temperature value down to which the tank will be allowed to cool itself Below this temperature the pump will not activate in any operating mode apart from manual operation IV b 4 Tank hysteresis Use this function to set a hysteresis value for the tank If the tank preset temperature is reached and the pump turns off it will again switch on after the tank temperature drops below the setpoint by this hysteresis value IV b 5 Cooling down to set point temperature When the collector reaches the overheating temperature the pump will be activated in emergency mode in order to cool it down In this case the tank will absorb heat up to a temperature that is higher than the set point temperature up to the maximum temperature To prevent the accumulation of too hot water in the tank you should activate the cooling to set point temperature function When this option is enabled as soon as the collector temperature falls below that of the storage unit the pump will start to cool the tank down to its set point temperature Solar collector In this menu the user sets all the parameters related to the solar collector IV c 1 Overheating temperature It is the collector s alarm acceptable temperature
26. se the pulser to select the code 112 and confirm your selection by pressing the knob To return to the main view screen to exit the service menu press the EXIT key a few times or wait about 30 seconds the device will automatically exit service mode You can also enter the service menu by pressing and holding down the exit button and pressing the pulser knob this option can be disabled in the service settings IV a Installation diagram For the solar system to work properly it is necessary to select the proper installation diagram SERVICE MENU gt INSTALLATION DIAGRAM and properly configure the additional options of your selected system SERVICE MENU gt INSTALLATION OPTIONS NOTE When selectin our installation diagram the temperature sensors show their respective numbers instead of their temperature readings This numbering should be followed to connect the appropriate sensors in the right places from left to right 1 collector sensor PT1000 2 storage unit sensor 1000 3 additional sensor 1 PT1000 4 additional sensor 2 1000 IV a 1 joel 1 12 Installation 1 12 supports collector pump gt accumulator tank one direction in the position of the collectors additional peripherals Installation sensors gt collector sensor accumulator tank sensor Installation 2 12 supports collector pump switching valve accumulator tank one direction in the position of the collecto
27. ture and the pump activates its deactivation will occur when the collector s temperature decreases below the maximum temperature by this hysteresis value IV c 5 Defrosting time Using this function the user determines for how long the pump will be activated after the Collector defrosting function activation IV d Pumps IV d 1 Adjustable or fixed pump speed With this function you can specify how the pump is to be run You can choose fixed speed with the pump running continuously at full power always when it is in active mode or adjustable speed If you choose the adjustable speed option you will have to set some additional parameters see below IV d 2 Maximum temperature of collector This setting allows the user to set the maximum alarm temperature of 17 ST 402N user s manual the collector at which the pump may get damaged This temperature should be set as per the technical specifications of your collector Due to the phenomenon of glycol gelling at high temperatures and possible damage to the solar pump after the maximum alarm temperature is reached it will be turned off the controller switches to collector overheating mode IV d 3 Installation sampling This function enables to activate or deactivate the circulation sampling intended for updating the temperature reading consisting in short collector pump activation when the normal pump activation conditionsare not met The sampling requires short activation of
28. ulator tank gt valve hysteresis When the preset temperature of the first tank is reached the valve will activate the heat receiver circuit The valve will switch back to its previous setting after the first tank cools down by the valve hysteresis value temperature difference between the two tanks gt maximum temperature for tank 2 With this option you can enter the maximum permissible safe temperature up to which the second tank heat receiver can be heated up in the event of the collector getting overheated gt gt gt gt gt ST 402N user s manual IV a 10 Diagram 10 12 Installation 10 12 supports collector pump switching valve accumulator tank dual function heater heating up direction in the position of the collectors gt additional peripherals Installation sensors gt collector sensor two sensors of accumulator tank The installation works with a two function heater used to heat up the circuit If the tank temperature is too low the valve switches over to the heater which additionally heats up the water behind the tank Additional installation options gt heating up off This function is used to set a temperature point for the tank below which the valve will switch over to the heating up circuit two function heater IV a 11 Diagram 11 12 Installation 11 12 supports collector pump switching valve accumul
29. ure is reached pump 2 will turn on to heat up the second tank Pump 2 will be switched off after the set point temperature of the second tank is reached or when the temperatures of both tanks equalize b parallel operation the pumps operate independently each within its own range as per settings and both tanks are heated simultaneously in parallel 12 Installation 9 12 supports collector pump switching valve accumulator tank heat exchanger heat receiver direction in the position of the collectors gt additional peripherals Installation sensors gt collector sensor gt accumulator tank sensor gt heat exchanger sensor In addition to an accumulator tank a heat receiver is available as part of the installation such as a swimming pool or central heating system whose task is to release and not collect heat energy Additional installation options set point temperature for tank 2 This function is used to enter the set point temperature of the second heat receiver exchanger After this temperature is reached the collector pump will turn off gt hysteresis value for tank 2 After the set point temperature of the heat receiver is reached the pump will turn off The pump will turn on again after the temperature of the heat receiver drops below the set point temperature by the hysteresis value for tank 2 provided that tank 1 has been heated up and the valve is not switched over to the accum
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