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immerSUN Installation and User Guide v1.3

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1. 22 6 Troubleshooting Use the table below to help remedy the problem Any actions requiring opening the immerSUN and or testing voltages should only be carried out by a competent person Contact your installer if in doubt Symptom Possible Cause Action Unit dead no display MCB Tripped Check MCB is ON Wiring to IN and OUT terminals swapped Check supply voltage on IN terminal Internal Fuse Blown Test fuse inside immerSUN Will not complete setup Heater Not Detected No load was detected during setup Check the immersion heater is switched on at the isolator check the thermostat is closed water may already be hot Otherwise there may be a fault with the immersion heater element check the resistance of the element Will not complete setup Clamp Current Too Low Import power too low during setup Check that the inverter is still switched off check that the heater thermostat is closed check the clamp correctly fitted the clamps needs to see the exported power to the grid Showing Water Hot even though the water is cold No load present on OUT terminal Immersion heater isolator should be ON Check immersion heater thermostat is not open Immersion heater element could be open circuit Always showing Waiting PV system not generating sufficient power Wait for PV system power increase or reduce demand by switching off appliances Problem with signa
2. between two heaters Heater no 1 output takes priority see wiring diagram Heater no 2 output only heats when no 1 is fully heated NB When heating no 2 the output is switched back to heater no 1 every 15mins to check if more heat is required RELAY FUNCTION gt Water Boost lt Water Boost Boost Relay controls boiler to heat water when in water boost mode rather than using the immersion heater RELAY FUNCTION gt De strat Pump lt De stratification Pump De strat Relay controls cylinder de stratification pump Pump is activated when immersion thermostat opens and runs until thermostat closes again The immersion thermostat is checked only once a minute so there may be a delay before the pump stops 16 RELAY FUNCTION Threshold Threshld gt Threshold lt Relay operates when an export threshold is reached relay remains activated for set period of time even if export drops Export threshold level and relay on duration can be set as shown below HRESHOLD SET THRESHOLD SET Export 500W Duration 1h3em RELAY FUNCTION Fault Signal Fault gt Fault Signal lt Relay is deactivated if a fault condition occurs S57 S555 Always On ON pAlways On lt Relay is operated continuously This is for testing purposes only aa gt Always Off lt Relay is disabled This is the default relay function Nominal Voltage INSTALLER MENU NOMINAL VOLTAGE Nominal Voltage METO ZCA The nominal
3. from a distance The display changes every two seconds showing the mode with additional information the time and date and the savings in kWh Normal Operation Mode amp LED status Mode Information Time amp Date Savings Description Waiting SEDE e 4eco immerSUN 16 02 12 oday 12 562kWh otal 5651kWh Waiting for sufficient exported power to start heating water Heating Water Heating Water Output 2925W eo Heating Water 10 52 16 02 12 Heating water with power from PV system no Grid power is being used The current output power applied to load is shown Heating Water Heating Water 2 Heating Water 2 oday 12 562kWh otal 5651kWh oday 12 562kWh otal 5651kWh Heating water with power from Dual Heater Mode Output 2925W 10 52 16 02 12 PV system no Grid power is being used Current heater is eo show in brackets Water Hot ater Hot Water Hot s The water is fully heated the 10 52 16 02 12 Total 5651kWh immersion thermostat is open e Hot Water Boost Timed Boost Heating water at full power for 1h 15m 25s 10 52 16 02 12 otal 5651kWh regardless of available export eo power Hot Water Boost EUCOE COEISE OS LEUE CCEE ECCERE REYN Heating water at full power Dual Heater Mode or 1h 15m 25s CETE ETE regardless of available export eo power Current heater is show in brackets Cascade Mode Status of Slaves HEAT WAIT Slave De
4. is vital to the operation and efficiency of the immerSUN Incorrect installation may result in increased electrical costs to the user The clamp should be located at the main incoming grid supply to the building This will be the supply from the main electric meter NOT the PV generation meter Close the clamp around one of the cables Live or Neutral from the meter this can be at the meter location or inside the consumer unit IMPORTANT Ensure the clamp is securely closed around the cable Connect the clamp wire to the CT terminals inside the immerSUN Don t worry about polarity as the immerSUN will figure it out during setup PV connected via Henley Block If the PV system is connected via a Henley Block then the clamp should be installed on the grid side of the block i e between the meter and Henley block More than one consumer unit Where there is more than one consumer unit the clamp should be installed at the primary incoming supply i e before it splits Three phase supply One immerSUN will only work on one of the phases the clamp MUST be installed on the SAME PHASE that is wired to the immerSUN the inverter MUST be on the SAME PHASE also If the inverter is 3 phase then the immerSUN will only see the import export on that phase therefore not all of the export power can be utilised Extending the clamp cable The clamp wire can be extended if required however due to the small signal from the clamp twisted pair cable
5. should be used to help eliminate possible interference The maximum cable length is 50m Most types of twisted pair cable can be used e g Beldon cable Cat 5 telephone cable etc 3 4 Wiring Diagrams Single heater wiring Most installations will be a single immerSUN connected to a single heater This is shown in the diagram below Alternative wiring method If the immerSUN is located close to the consumer unit it may be simpler to use the alternative wiring option using 4 core cable or singles As the Earth and Neutral terminals are each common the alternative option shows that the heater earth and neutral need not be directly connected the the immerSUN The alternative wiring method can also be used for all of the additional wiring options Using the multifunction relay When wiring one of the options involving the relay contacts the relay function must be selected This is done via the Relay Function option in the Installer Menu See section 4 3 The relay can be set to perform only one of the functions Linking several immerSUN units Cascading Up to four immerSUN units can be linked together This allows up to 12kW 3kW for each immerSUN of surplus power to be utilised on one phase This is known as Cascading as the first immerSUN will consume the first available 3kW the second unit in the chain will then consume the next available 3kW and so on When using cascade mode each immerSUN must have its own 3kW maximum load The immerS
6. value associated with the fault Settings SETTINGS SET TIME Set Time ettings Set Time 16 01 Time is used for Hot Water Boost and the event log Time is maintained during power outages for at least 48 hours SETTINGS iSet Date ISET DATE Set Date 12 06 12 The date is used for the event log Date is maintained during power outages for at least 48 hours SETTINGS Set Contrast SET CONTRAST gt 20 lt Set Display Contrast The display contrast can be adjusted if required 20 cont Timed Boost JAIN MENU TIMED BOOST A imed Boost 06 30 Oh 30m Timed Boost A The water heating can be boosted to ensure hot water by a given time When heating water in boost mode the immersion heater will be fully on regardless of available free power Set the on time and duration for timed hot water boost If timed water heating boost is not required set the duration to Oh Om TIMED BOOST B 17 00 1h 15m Timed Boost B Water heating boost can be set for twice a day A amp B Set the on time and duration for timed hot water boost If timed water heating boost is not required set the duration to Oh Om Timed Boost AIN MENU TIMED BOOST 1A imed Boost 1 06 30 Oh 30m Two Heater Mode When the relay function is set to Two Timed Boost 1A Set the on time and duration for timed hot water boost for heater no 1 If timed water heating boost is not required set the duration to Oh Om
7. 2 seconds iew Readings rid I 12 5A Grid I Shows AC mains current at clamp The display will update approximately every 2 seconds iew Readings Load I 8 2A Load I Shows AC mains current applied to load The display will update approximately every 2 seconds iew Readings emperature 38C Temperature Shows internal temperature on the immerSUN The display will update approximately every 2 seconds Clamp INSTALLER MENU Clamp Wired Clamp Type The clamp type is shown the clamp type can only be changed by resetting the unit Cascade INSTALLER MENU ascade Off Cascade Mode When cascading several immerSUN s to control several loads Cascade should be set to ON Set Load The output can be set to agiven percentage for testing purposes NSTALLER MENU et Load Auto un m 4 ra o 5 Auto Normal mode Set output to automatically track exported power Manual Manually set output power for testing purposes only Relay Function The internal multi function relay can be set to operate as one of 8 different functions The currently enabled option is shown in brackets See appropriate wiring diagram for chosen relay function INSTALLER MENU Relay OFF IRELAY FUNCTION gt When Heating lt When Heating Relay is on when output is heating water IRELAY FUNCTION gt Two Heaters lt pg m al i e Two Heaters 2 Heater Use relay to switch load output
8. DIP switches will need to be set accordingly see table below Default settings show in talics 1 2 Cascade Position Select Notes OFF OFF 1 Slave Clamp not used control is via master OFF ON 2 Slave Clamp not used control is via master ON OFF 3 Slave Clamp not used control is via master ON ON Master Unit Clamp is required 3 Termination Resistor Select ON RS485 termination resistor ENABLED Set to ON if this is at the end of the communication chain If the unit is in the middle of the chain set to OFF Where OFF RS485 termination resistor DISABLED there are only two devices connected set both to ON 4 Clamp Burden Resistor Select ON Internal burden resistor ENABLED OFF Internal burden resistor DISABLED Use external resistor for supporting alternative clamps 14 4 2 Installation Setup At first switch on the immerSUN will run through the installation setup process follow the instructions on the display Step 1 INSTALLATION i P ETUP PRESS gt Press gt to start the installation setup process as instructed Otherwise press lt to cancel Step 2 ELECT CLAMP lt RADIO lt gt WIRED gt Step 3 URN ON HEATER Ensure that the heater isolator is ON and that the HEN PRESS gt thermostat is closed i e the water in the cylinder is cold ERROR HEATER An error will occur if no load is detected the immersion NOT DETECTED heater may be switched off at the isolator or the thermo
9. Heaters the timed TIMED BOOST 1B boost can be 17 00 1h 15m independently set for both heaters Timed Boost 1B Water heating boost can be set for twice a day A amp B Set the on time and duration for timed hot water boost for heater no 1 If timed water heating boost is not required set the duration to Oh Om AIN MENU TIMED BOOST 2A imed Boost 2 M 06 30 Oh 30m Timed Boost 2A Set the on time and duration for timed hot water boost for heater no 2 If timed water heating boost is not required set the duration to Oh Om TIMED BOOST 2B Timed Boost 2B Water heating boost can be set for twice a day A amp B Set the on time and duration for timed hot water boost for heater no 2 If timed water heating boost is not required set the duration to Oh Om 5 5 Manual Hot Water Boost In addition to the timed hot water boost option the water heating can be boosted manually You may wish to use this function if you have an unexpected hot water demand See section 5 4 for Timed Boost option Manual Boost anual Boost ON for gt 1h eem lt To manually boost the hot water press and hold gt then use the W and A buttons if you want to change the boost time Confirm boost by pressing gt again The Hot Water Boost operation will then start The water heating will then be boosted for the set duration or until the water is hot whichever is sooner Hot Water Boost CANCELLED To cancel boost mode
10. ImmersuN Water heating for your PV system Installation and user guide v1 3 A CO passionate about green Contents 1 Overview 4 2 Technical Specifications 5 3 Installation 6 3 1 Mounting 6 3 2 Electrical Connections 7 3 3 Clamp Installation 8 3 4 Wiring Diagrams 9 3 5 Using the immerSUN with a dual rate electrical supply 13 4 Installer Settings 14 4 14 DIP Switch Settings 14 4 2 Installation Setup 15 4 3 Installer Menu 16 5 User Operation 18 5 1 Controls and Display 18 5 2 Changing Values 18 5 3 Normal Operation Display 19 5 4 Main Menu 20 5 5 Timed amp Manual Hot Water Boost 21 5 6 Error Messages 22 6 Troubleshooting 23 7 Legionella and General Advice 24 7 1 Legionella 24 7 2 Getting the most from your immerSUN 24 8 Warranty 25 9 Conformance 26 10 Commissioning Sheet 27 1 Overview Thank you for choosing immerSUN This intelligent device is a sensible and practical addition to your PV or Wind microgeneration system Water is heated via your existing immersion heater using surplus power that would otherwise have been exported to the grid Please read and follow this guide to ensure many years of trouble free operation and savings Key features e Heats water from your PV system or Wind Turbine e Effectively adjusts power levels to the immersion heater keeping the exported power at virtually zero e The consumer no longer needs to be at home to use the fre
11. UNSs should be linked in a daisy chain fashion with twisted pair signal cable using the COMMS terminals A and B Cascade mode needs to be selected in the Installer Menu See section 4 3 Single Immersion Heater COMMS PWR CLAMP RELAY MAINS even 8 a ctct NC C NOlIE E N N LH L arn Slee Slee 240V AC MAINS SUPPLY From 16A MCB or COMMS LINK 13A fused outlet For linking several ImmerSUN devices CLAMP Install onto incoming mains Live cable to building ISOLATOR Must be double pole IMMERSION HEATER Max Load 3kW For simple single heater control relay connections not required comms connections A amp B are used only when several immerSUN devices are to be linked Also see Alternative Mains Wiring diagram Alternative Mains Wiring RELAY MAINS INC C NOIE E N N LH L Joge CONSUMER UNIT With 16A MCB ISOLATOR Must be double pole IMMERSION HEATER Max Load 3kW As an alternative to using two flex cables one 4 core cable may be used for the mains wiring Two Heaters COMMS PWR CLAMP RELAY MAINS svep B a lctcTlINc C NOlE E N N LH L 240V AC MAINS SUPPLY From 16A MCB or COMMS LINK 13A fused outlet For linking several ImmerSUN devices CLAMP Install onto incoming mains Live or Neutral cable to building ISOLATORS Must be double pole IMMERSION HEATERS Max Load 3kW each Other loads can be used Two heaters can be controlled by using the multi function relay The
12. e electricity whatever the weather e No need to change the immersion heater e Suitable for all electrical microgeneration systems e Built in hot water boost timer e Manual hot water boost function e Back lit LCD display shows energy saved output power and operating mode e Dual immersion heater control option e Internal multi function relay in addition to the modulated power output Upto 4 devices can be daisy chained for master slave operation e MODBUS RS485 interface for system expansion and external data logging e Internal thermal protection e 3 year product warranty 2 Technical Specifications Electrical Specifications Description Minimum Nominal Maximum Supply Voltage VAC 198 230 264 Supply Frequency Hz 50Hz Load Current A 13 16 Load Size W 250 3000 3200 Relay Contact Voltage VAC 250 Relay Contact Current A 16 Clamp Current A 100 Recommend PV System Size kW 2 15 Dimensions and weight Width mm 150 Depth mm 64 Height mm 140 Weight g 935 3 Installation 3 1 Mounting Often the most suitable location for the immerSUN is near to the consumer unit Usually all the connections required are available here The following should be considered when deciding upon the most suitable location Close to the main incoming mains electrical supply of the property Access to immersion heater supply cable this is usually at the consumer unit Access to suitable supply v
13. for back up heating heat loss from the cylinder will also be less However it is important to make sure your cylinder reaches 60 C at least once a week to avoid risk of Legionella 24 8 Warranty Subject to the provisions described below this product is protected for three 3 years against defects in material and workmanship Should this product fail to perform as described within the warranted period it will be repaired or replaced with the same or functionally equivalent product by 4eco at its discretion free of charge provided you 1 Return the failed product to 4eco with shipping charge prepaid and 2 provide 4eco with proof of the original date of purchase Returned or replacement products will be returned to you with shipping charges prepaid Replacement products may be refurbished or contain refurbished materials If 4eco by its sole determination is unable to repair or replace the defective product it will refund the depreciated purchase price of the product The warranty does not apply if in the judgement of 4eco the product fails due to damage from shipment handling storage accident abuse misuse or if it has been used or maintained in a manner not conforming to product manual instructions has been modified in any way or has had any serial number removed or defaced Repair by anyone other than 4eco or an approved agent will void this warranty The maximum liability of 4eco under this warranty is limited to the p
14. for microgeneration systems Model immerSUN Is in conformity with the applicable requirements of the following documents Ref No Title Edition Date BS EN 61000 6 1 Electromagnetic compatibility EMC Generic 2007 standards Immunity for residential commercial and light industrial environments BS EN 61000 6 3 Electromagnetic compatibility EMC Generic 2007 standards Emission standard for residential commercial and light industrial environments hereby declare that the equipment named above has been designed to comply with the relevant sections of the above referenced specifications The unit complies with all applicable Essential Requirements of the Directives Signed N aa k L oS Name Lee Sutton Position Technical Director On 12 July 2012 26 10 Commissioning Sheet Model Serial Number Installation Company Installer Name Date of Installation Legionella advice given See section 7 tick when done Signed by Installer IMMeErSUN 27 IMMeErSUN 4eco Ltd 3 Church View Business Centre Binbrook Lincolnshire LN8 6BY England 44 0 1472 398838
15. heater etc The load must not exceed 3 2kW and must not include digital or analogue timers as they may be damaged by the proportional output control of the immerSUN IMPORTANT Be sure to fully tighten terminals checking the cables are securely clamped by the terminals and the cord grips Failure to ensure good connection could result in fire or permanent damage to the unit NOTE The screw terminals are rising clamp type TERMINALS MAINS L LIVE FEED 240V supply input should be from 16A MCB or 13A fused outlet LH LIVE OUTPUT Live output to immersion heater maximum load 13A or 3kW N NEUTRAL x2 Mains Neutral terminals All Neutral terminals are internally connected E EARTH x2 Mains Earth terminals All Earth terminals are internally connected IMPORTANT Earth MUST be connected RELAY used for some additional functions see wiring diagrams in section 3 4 NO NORMALLY OPEN Volt free normally open relay contact max current 13A Cc COMMON Volt free common relay contact max current 13A NC NORMALLY CLOSED Volt free normally closed relay contact max current 13A CLAMP CT CURRENT TRANSFORMER AC current transformer clamp terminals COMMUNICATIONS A RS485 A RS485 communication terminal A D B RS485 B RS485 communication terminal B D GD DIGITAL GND Ground connection for future use 5V 5V OUTPUT 5 volt output connection for future use 3 3 Clamp Installation Correct positioning of the current sensor clamp
16. heaters need not be in the same cylinder Heater no 1 has priority 10 Boiler Hot Water Boost COMMS pwR CLAMP RELAY MAINS svep 8 a lctcTl Nc C NOlE E N N LH L naam SS Slee ele 240V AC MAINS SUPPLY i From 16A MCB or COMMS LINK 13A fused outlet For linking several ImmerSUN devices BOILER HW CALL Volt free contact Connect to boiler wiring CLAMP Install onto incoming mains Live cable to building ISOLATOR Must be double pole IMMERSION HEATER Max Load 3kW Rather than using the immersion heater to boost hot water an external heat source e g a boiler can be used by making use of the multi function relay wired to the boiler hot water controls De strat Pump COMMS PwR CLAMP RELAY 240V AC MAINS SUPPLY From 16A MCB or COMMS LINK 13A fused outlet For linking several ImmerSUN devices ISOLATOR Must be double pole CLAMP Install onto incoming mains Live or Neutral cable to building DE STRAT PUMP With 3A fused isolator IMMERSION HEATER Max Load 3kW It may be desirable to use a de stratification pump to mix the cooler water at the bottom of the cylinder with the hotter water at the top this allows a top mounted immersion heater to heat all of the water in the cylinder 11 Threshold Switch COMMS PwR CLAMP RELAY MAINS svep 8 A ctcT NC C NOIE E N N LH L ran Cele Cleelelele 240V AC MAINS SUPPLY From 16A MCB or 13A fused outlet COMMS LINK For linking several I
17. ia 16A MCB or 13A fused outlet User access to immerSUN controls and visibility of LCD screen Adequate ventilation keeps vents clear and provide airflow around the unit Cable access point through the rear or bottom of the unit Use the 3 screws and wall plugs provided to mount the immerSUN at the chosen location Remove LCD protective cover after mounting the unit DO NOT BLOCK VENTS The enclosure may get hot always keep vents clear of obstruction and allow sufficient clearance from walls ceilings and other objects Observe minimum clearances as shown below Omm 100mm 50mm 100mm 3 2 Electrical Connections Electrical connections should be made only by a competent person Do not attempt to install this unit if you are not a qualified or an experienced electrician Installation may involve alterations to fixed wiring and opening the consumer unit there is risk of death by electrocution Choose the most suitable cable entry points rear or bottom and make the electrical connections to the unit according to the appropriate wiring diagram see section 3 4 Use the blanking plugs provided for unused cable entry points Alternative loads In some cases it may be desired to control the power to a load other than an immersion heater The load MUST be a simple resistive load e g an electric towel radiator storage
18. l from clamp Check clamp is fitted to correct cable Check clamp wire connections to terminals Heating water at full output even when PV is not exporting Clamp reversed The clamp has been reversed the settings will need to be reset to reconfigure the unit See section 4 3 Reset Settings Slave device status not showing on master display Communication link wires not properly connected Check continuity of communication wires to terminals A amp B Address conflict Check DIP switch positions Slave status screen not showing when Cascade Mode is enabled Cascade Mode not enabled on master Check Cascade Mode is enabled in installer menu Address settings incorrect Check DIP switch positions 23 7 Legionella and General Advice 7 1 Legionella The legionella bacteria is present in all source water The concentration however is normally too low to be a risk to health The growth of the bacteria and hence the concentration is dependent on stagnation time temperature and nutrient availability A domestic hot water storage cylinder in the UK is unlikely to remain stagnant in the cylinder for much more than a day under normal occupation of the premises In addition the mains cold water supply is very low in nutrients as it is often treated with chlorine which remains in the water and is toxic to the bacteria Nevertheless if the premises are unoccupied for any length of time such as absence o
19. mains operation voltage should be set Default is 240V Reset Settings INSTALLER MENU RESET SETTINGS Reset Settings E T Use to setup immerSUN after installation See section 4 2 SerialNumber amp Serial Number amp Firmware Version Firmware AEE WE The serial number and firmware version are displayed Version 17 5 User Operation 5 1 Controls and Display LCD DISPLAY STATUS LED SET BOOST DOWN UP Button Operation Alt Operation Description lt BACK SCREEN CHANGE Exit menu or change screen when not in menus Go down through list or decrease value DOWN MEN v o u Enter Main Menu Go up through list or increase value A UP MENU Enter Main Menu gt SET BOOST Set value or hold to boost hot water 5 2 Changing Values To change values navigate to value you wish to change and press P Arrows either side of the value to change will then be shown Use the W and A buttons to change the value Press again to store the new value Pressing lt will exit edit mode without changing the value Non Edit Mode Press P to edit value Edit Mode Value to be edited is indicated by gt lt symbols 16 gt 01 lt 5 3 Normal Operation Display The table below summarises the operation of the immerSUN There are four main modes of operation Heating Water Water Hot Waiting and Hot Water Boost The mode is shown on the LCD display the LED allows the mode to be determined
20. mmerSUN devices APPLIANCE LIVE SWITCH Volt free contact CLAMP Can be used to switch live Install onto incoming mains feed to appliance Live cable to building NOTE If load exceeds 13A a separate contactor must be used ISOLATOR Must be double pole IMMERSION HEATER Max Load 3kW The multi function relay can be used to switch any load on for a set duration once an export threshold has been reached The maximum relay current should not be exceeded an additional contactor may be used for larger loads Fault Signal COMMS pwR CLAMP RELAY MAINS 5VGD B A CTCTIINC C NOIE E N N LH L Fran ClSlS Sle eleele 240V AC MAINS SUPPLY From 16A MCB or COMMS LINK 13A fused outlet For linking several ImmerSUN devices TO BMS SYSTEM Volt free contact Contact is closed when unit Is powered Contact opens if fault occurs CLAMP Install onto incoming mains Live cable to building ISOLATOR Must be double pole IMMERSION HEATER Max Load 3kW If a fault signal for a BMS system is required the multi function relay can be set to de activated when a fault occurs 12 3 5 Using the immerSUN with a dual rate electrical supply There are 2 common ways that a dual rate electrical supply can be configured 1 A single dual rate meter feeding the whole house This is the most common configuration bd The immerSUN should be wired as normal See wiring diagrams in section 3 4 s The immerSUN s Timed Boost should be set to o
21. n holiday it is good practice to sterilise the system using the immersion heater or an auxiliary heat source before using any hot water This applies whether or not a solar water heating system is fitted It is strongly advised that the hot water boost function or existing hot water boiler controls be set to ensure that the water is heated up to 60 C at least once a week 7 2 Getting the most from your immerSUN To get the most from your immerSUN there are a few things you will need to consider 1 Set your boiler hot water timer or the immerSUN boost function to ensure that water is only boosted to full temperature after the water has been heated to the maximum extent possible by the immerSUN This is likely to be after the sunset When you use hot water during the evening and early morning this will ensure that there is plenty of cold water in the cylinder for the sun to heat the next day Using back up heat in the morning means less opportunity for the immerSUN to contribute 2 Adequate insulation of cylinder and pipes is vital Systems with poorly insulated cylinders can suffer from inadequate hot water provision in the mornings 3 Electric showers heat water themselves rather than using the solar heated water using them will reduce overall hot water use meaning that you won t get maximum benefit from the immerSUN 4 Allow the hot water temperature to vary If you do not need high temperatures all the time you will have less need
22. perate at off peak times s Remove any timers that are installed on the immersion heater circuit 2 Two meters supplying two consumer units With this configuration there is a separate timed off peak supply Wire the immerSUN as shown in the diagram below s Set the Relay Function to Water Boost and then set the Timed Boost to operate at off peak times s Remove any timers that are installed on the immersion heater circuit s Label the immersion heater with a Dual Supply warning label s Please Note It will not be possible to Boost outside of off peak times Dual Rate Supply with two meters COMMS PwR camp RELAY MAINS 5VGD B_A CTCT NC C NOIE E N N LH L 240V AC 24hr SUPPLY From 16A MCB or COMMS LINK 13A fused outlet For linking several ImmerSUN devices CLAMP Install onto incoming mains Live or Neutral cable to building ISOLATOR Must be double pole 240V AC TIMED SUPPLY From 16A MCB or IMMERSION HEATER 13A fused outlet Max Load 3kW Other loads can be used 4 Installer Settings Once the unit is mounted and wired the installer will need to set parameters as required for the particular installation Before applying power to the unit the DIP switches will need to be set 4 1 DIP Switch Settings The default position of the DIP switches is all four set to ON For the majority of installations this will be the correct setting However if several immerSUN devices are being cascaded then the
23. press and hold lt for 2 seconds 21 5 6 Error Messages If a fault condition occurs an error message will be displayed and the LED will flash red The error will be logged in the Fault Log Normal operation will continue once the immerSUN is reset Error Messages 9 00 HOT eo The internal temperature of the immerSUN is too high Check vents are clear AINS VOLTAGE MAINS VOLTAGE 00 HIGH TOO LOW AC supply voltage is outside of the operating parameters ERROR LAMP REVERSED The clamp has been reversed the settings will need to be reset to reconfigure the unit See section 4 3 Reset Settings ERROR OUTPUT OVERLOAD The output of the unit is overloaded the heater is larger than 3kW ERROR RIAC FAILED The power control has a fault switch off the immersion heater immediately as power may be being drawn from the grid Setup Errors ERROR HEATER NOT DETECTED No load was detected during setup the immersion heater may be switched off at the isolator or the thermostat open because the water is hot already Otherwise there may be a fault with the immersion heater LAMP CURRENT 00 LOW If the import power is too small during setup this message will be displayed This could be because the inverter is still switched on after request to be switched off the heater thermostat is open or the clamp is at the wrong location The clamp needs to see the exported power to the grid
24. stat open because the water is hot already Press lt to go back to step 1 CHECKING The immerSUN will then perform a test to check the EATER output and the heater Step 4 URN INVERTER You will be asked to switch off the inverter this is so the master only OFF THEN PRESS gt immerSUN can detect import export direction Use the AC isolator of the PV system Step 5 SETTING UP Setting up will take several seconds PLEASE WAIT master only CLAMP CURRENT If the import power is too small this could be because TOO LOW the inverter is still switched on the heater thermostat is open circuit or the clamp is at the wrong location Press lt to go back to step 1 Step 6 INSTALLATION Once setup has finished this message will be displayed ETUP COMPLETE Step 7 Switch inverter back on again Wait for inverter to start working this usually takes 3 minutes If export is high enough the immerSUN will start heating water otherwise you will see the waiting screen 15 4 3 Installer Menu Installer Menu Options Press and hold V AnD A for5 seconds for installer menu Description Menu Screen Installer Menu NSTALLER MENU IPRESS gt Press and hold W AND for 5 seconds for installer menu you will then see this screen press gt to continue to installer menu View Readings INSTALLER MENU iew Readings iew Readings 245V AC Volts Shows AC mains voltage at present The display will update approximately every
25. urchase price of the product covered by the warranty Prior to returning any defective product the end customer or the reseller from whom the end customer originally purchased the product must obtain a Return Materials Authorisation RMA number from 4eco All defective products should be returned to 4eco with shipping charges prepaid 4eco will not accept collect shipments Except as specifically provided in this agreement or as required by law the warranties and remedies stated above are exclusive and in lieu of all others oral or written express or implied Any and all other warranties including implied warranties or merchantability fitness for a particular purpose and non infringement of third party rights are expressly excluded 4eco shall not under any circumstances be liable to any person for any special incident indirect or consequential damages including without limitation damages resulting from use or malfunction of the products loss of profits or revenues or costs of replacement goods even if 4eco is informed in advanced of the possibility of such damages 25 9 Conformance EC Declaration of Conformity In accordance with EN ISO 17050 1 2004 We 4eco Ltd of 3 Church View Business Centre Binbrook Lincolnshire LN8 6BY England In accordance with the following Directives 2006 95 EC The Low Voltage Directive 2004 108 EC The Electromagnetic Compatibility Directive Hereby declare that Equipment Heater controller
26. vices Status Screen When Cascade Mode this screen will be shown giving the status of all the slave immerSUN devices in the system Status Abbreviations HEAT Heating Water HOT Water Hot WAIT Waiting for sufficient export power BOOS Timed Boost No device detected 19 5 4 Main Menu Main Menu Options Press Vor A formain menu Description Menu Screen Sub Menus View Savings JAIN MENU Savings Today The immerSUN RCE Vanes Today 12 563kWh Show savings made today in kWh measures and records energy applied to immersion heater As Savings Month 224kWh Month current month Show savings made this month in kWh only the renewable Savings Month each month energy is counted this MAR 224kWh Show savings made in the indicated month in kWh is effectively saved Savings are stored for each month of the year energy z Savings Year ear 1791kWh Show savings made this year in kWh Savings Total otal 3215kWh Shows total energy saved to date in kWh iew Event Log 14 53 12 06 1 alue Every normal operation event is logged along with the time and date of the event Code is the event code number Value is the value associated with the event View Fault Log POWER FAILED Code 105 Log Details iew Fault Log 14 53 12 06 1 alue Every change of status and any faults are recording in the log along with the time and date of the event Code is the fault code number Value is the

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