Installation and User Guide V4.0
Contents
1. EE LOAD ISOLATOR LOAD ISOLATORS HEATER AND THERMOSTAT HEATER AND THERMOSTAT Z 9 Three Heater Wiring By making use of the Multifunction Relay it is possible to connect 3 heaters One heater is wired to the Heater 1 output the Heater 2 output is wired to the Common of the relay the other two heaters are then connected to the Normally Open and Normally Closed contacts The heaters are heated sequential i e Heater 1 is heated with surplus power until the thermostat opens the immerSUN will then display HOT After a few seconds provided export power is still available Heater 2 will start to be heated If Heater 2 reaches maximum temperature the display will show HOT and the immerSUN will switch the relay over so that Heater 3 can be heated During heating of a lower priority heater the immerSUN will switch to the higher priority heater periodically to check if it can take more heat The heating priority can be set in the Main Menu Set Priority Also the period of time between heater checks can be set in the Advanced Settings Menu Priority Check Important e Maximum load 3 0kW each heater e Minimum load 150W each heater e Recommended cable size 2 5mm e Must be a simple resistive load without electronic controls Settings Heater 1 Type Set to match the load Heater 2 Type Set to match the load Heater 3 Type Set to match the load Relay Function Third Heater E2. When Heating When Boosting RELAY WHEN BOOSTING When Boosting y Heater 1 The relay will operate whenever the Boiler Boost Heater 2 selected heater s are being boosted Destrat Pump ad with manual boost or timed Boiler Boost The relay will operate whenever a manual boost or timed boost is activated for the selected heater s The heater will NOT be boosted Multfunction Relay Settings by the immerSUN but will heat as The settings for the normal Instead an auxiliary boiler Multifunction Relay will be called to boost can be accessed via the Advanced RELAY DESTRAT PUMP Destrat Pump Settings Menu Heater 1 Once the heater thermostat opens Heater 2 the relay will operate to run a destratification pump The pump will run for the duration set by the list Some functions Check Period option in the Advanced have options which Settings Menu can be defined The relay function is selected from a 14 What Does It Do The Multifunction Relay is a relay that can be used for many different purposes The operation is controlled by the immerSUN and will operate when certain conditions are met these conditions can be user defined The relay can be used to control pumps send signals to the boiler and switch on off appliances etc Third Heater When External Boost Export Threshold Fault Signal Fault Signal The relay will DEACTIVATE if a fault is detected It will remain deactivated until RELAY
3. EXP THRESHOLD the fault is cleared Threshold 500W or the immerSUN is ON Period 15min restarted OFF Period Omin Priority High Ranges 0 3600W in 100W steps ON and OFF 0 240 min in 5min steps Multifunctional Relay Contacts NC Normally Closed C Common NO Normally Open 15 3rd Heater The relay is used to switch heater 2 output between two different heater loads therefore enabling 3 heaters to be sequentially controlled When this option is set Heater 3 will be available on some menu options When External Boost The relay will activate whenever there is an AC voltage at the EX BST input connector In this mode the relay can also be controlled with the Manual and Timed Boost options Export Threshold The relay will activate when a set export power Threshold is reached The relay will remain activated a set minimum ON Period After this period the relay will deactivate unless the export threshold still exceeds the set level If the export has fallen below the threshold after the ON Period the relay will immediately deactivate and will remain so for the set OFF Period The ON Period needs to be gt 0 to be enabled This function operates independent o the heater outputs When the priority is set to HIGH he relay will activate when the surplus power exceeds the threshold set i e it will include the already diverted power when waiting for he threshold to be exceeded With he majority set to LOW r
4. then on the inverter should now search for the PV hot water again INVERTER NETWORK DISCONNECTED The wifi or ethernet connection between the inverter and router is disconnected Fix this first FINDING The inverter is trying to connect to the Ethernet Bridge CANNOT FIND The inverter cannot find the Ethernet Bridge check the Ethernet Bridge is powered on and the ethernet cable connected Also check the inverters network settings Check that the LEDs on the Bridge Ethernet connector are flashing yellow and steady green This indicates connection to the router FOUND The inverter has connected to the bridge FINDING CONNECTION ISSUE The inverter is able to talk to the Ethernet Bridge but the bridge is unable to talk to the immerSUN Controller Retry Step 9 and 10 If the Bridge has previously been connected then the immerLINK Search feature may now show Bridge FOUND with no option to re search In this case it will be necessary to reset the immerLINK functionality Go to Advanced Settings Factory Reset and select reset immerLINK only and execute the reset FOUND CONNECTION ISSUE The inverter has connected to the Ethernet Bridge but cannot connect to immerSUN Controller Retry Step 9 and 10 and check the aerial connections and that there is a good signal path CONNECTED Success COMMS ERROR There is an issue with the internal communications of the inverter s display If this stays displayed check the cable betwe
5. e Minimum load 150W each heater e Recommended cable size 2 5mm e Must be a simple resistive load without electronic controls Settings Heater 1 Type Set to match the load Heater 2 Type Underfloor Heating resistive load only Heater 3 Type Disabled Relay Function Not used External Boost Heater Thermostat Heater 2 Tips and Ideas e Smaller loads can be connected in parallel as long as the maximum load is not exceeded e TheimmerSUN has built in timers that can replace any timers that have been removed e The Multifunction Relay is free to use to control other devices 37 Wiring Underfloor Heating Opt 2 UFH MAT UFH THERMOSTAT vi e lt IMMERSUN SUPPLY LOAD ISOLATOR ISOLATOR HEATER AND THERMOSTAT L NE 220 240VAC SUPPLY 38 or P Underfloor Heating Option 2 Electric underfloor heating UFH can usually be used with the immerSUN This wiring diagram assumes that the UFH is to be used alongside another heater most likely an immersion heater However the UFH system can be used as the only heater by wiring to the Heater 1 output The UFH thermostat is wired solely to the immerSUN power is taken from the immerSUN supply and External Boost input is used to sense the UFH thermostat state The UFH mat is connected directly to Heater 2 output The External Boost input is used in thermostat mode so that the Heater 2 output is active only when the UFH thermostat is callin
6. export power threshold detect Up to 5 immerSUN s can be linked together for larger systems Smart sturdy metal enclosure designed with the installer in mind Fully short circuit protected in case of load fault Over load protection Soft starting to avoid power surges Smart meter compatible Main Screen The main screen shows the status of the immerSUN the imported or exported power the date and time and the savings made today The house in the centre of the screen will be happy if no power is being imported otherwise a straight face will be displayed Arrows either side of the house show the direction of power From this screen the Menu can be accessed a manual Boost can be triggered and there is a short cut to the Savings data Savings Today Savings shown alternates between kWh and financial savings in the set currency Current Heater The symbol for the heater being heated is shown along with the heater number Date amp Time The current date day of week and time 05 06 13 Ved13 28 2 83HWh z 3kH d ule A v Grid Power The power either being imported or exported Import or export is shown Heater Power by the direction of the The amount of power arrow between the Grid currently being sent to and House symbols the heater Savings Savings that have been made by immerSUN are stored in permanent memory The savings can be shown for Today this Week this Month and this Year as well as the To
7. heater outputs is shorted The heater is faulty Check The heater for faults Test The heater can be tested by measuring the L N resistance it should be between 160 and 3500 Note The unit MUST BE OFF for this test UNDER VOLTAGE The supply voltage is too low Test The supply should be between 215V and 259V OVER VOLTAGE The supply voltage is too high Test The supply should be between 215V and 259V FAN FAULT Tha fan is faulty Note Please contact your installer 47 Technical Model Number Supply Voltage MCB Fuse Rating Input Current max Load Capacity Output Voltage Relay Contact Rating External Boost Input Sensor Current max Ambient Temperature Standby Consumption Efficiency Power Factor Power Control Method Control Resolution 1 Response Time Measurement Accuracy Dimensions Unit Weight Package Weight IP Classification immerLINK radio linking frequency Compliance Specifications T1060 220 240V AC 50Hz 16A 13A 13A 150W 3000W OV Supply Voltage 16A 250V AC 24 275V AC lt 1W 100A 20 to 35 C 3 5W 98 1 0 PWM 0 33 1 second 1 235 x 152 x 72mm 1 7 kg 2 4 kg IP20 868MHz 60335 1 Safety of household electrical appliances EN 61000 6 3 2007 A1 2011 Electromagnetic compatibility EMC Generic standards EN 61000 3 2 2006 A1 2009 A2 2009 Limits for harmonic current emissions EN 61000 3 3 2008
8. input is free to use if an auxiliary device needs to have some control over the immerSUN e greater than 16A needs to be controlled by the relay then an external contactor must be employed e If you are controlling a motor pump or other inductive load then an external contactor must be employed In this wiring configuration the POOL SUPPLY could be supplied via an RCD since the circuit is isolated from the immerSUN by way of a contactor e Toturn the pool or heatpump on when not under a TIMED BOOST activate a MANUAL BOOST from the front panel 45 Error Messages ERROR 1 1 VOLTAGE BACK FEED 1 Check Heater 1 wiring ERROR 2 2 VOLTAGE BACK FEED 2 Check Heater 2 wiring ERROR 3 HEATER NOT DETECTED 3 Check Heater is ON Thermostat is ON ERROR 4 SENSOR ERROR 4 Check Sensor wiring Sensor location ERROR 5 5 INTERNAL FAULT Contact installer VOLTAGE BACK FEED During self test the unit has detected unexpected voltage at the Heater 1 output this could damage the unit THE UNIT SHOULD NEVER BE BACK FED Check The wiring must be incorrect check wiring VOLTAGE BACK FEED During self test the unit has detected unexpected voltage at the Heater 2 output this could damage the unit THE UNIT SHOULD NEVER BE BACK FED Check The wiring must be incorrect check wiring HEATER NOT DETECTED During setup the unit did not detect any current being drawn from Heater 1 To get throu
9. optimised voltage Check the manufacturers instructions before connecting the immerSUN to an optimised circuit some optimisers should not be connected to heaters Three Phase Systems The immerSUN and the Sensor Clamp must be on the SAME PHASE If the generation is 3 phase an immerSUN can be used on each phase if only one or two immerSUN s are used only one third or two thirds of the surplus power will be able to be utilised The loads will need to be single phase 17 System Overview yf 4 VZ PV ARRAY ELECTRICITY GRID INVERTER SENSOR CLAMP DISTRIBUTION BOARD SUPPLY METER OTHER LOADS Wireless Sensor option available uses immerLINK IMMERSUN PV HOT WATER CONTROLLER WATER HEATER or other heater 18 immerLINK Linking Units immerLINK is a wireless network used by immerSUN devices Up to 5 immerSUN units can be linked together by using immerLINK Linking several units enables more export power to be consumed with each device being able to control a 3kW load up to 15kW of would be exported power can be utilised Use the immerLINK Search option in the Advanced Menu to link devices Z MICRO ELECTRICITY ZUR GENERATION GRID T SYSTEM SENSOR CLAMP DISTRIBUTION BOARD Wireless Sensor option available uses immerLINK IMMERSUN master Wireless 4 WATER Communication HEATER or other heater Slaves Up to 4 immerSUNs can be configured as sl
10. removed e If this configuration is being used with a dual element cylinder then connect Heater 2 to the top element and set priority 2 1 This ensures that the power available from the PV is used to maximise heating of the cylinder top first Please note The LCD heater icon will display HOT when boosting from the economy supply 43 Wiring Pool or Heatpump ON POOL OL CONTACTOR HEATER 1 SUPPLY LOAD ISOLATOR ISOLATOR 220 240VAC SUPPLY WATER HEATER AND THERMOSTAT 44 IMMERSUN Pool spa pool heatpump or other non resistive load wiring The heater is heated with surplus PV power until the thermostat opens the immerSUN will then display HOT The surplus PV power can then be used for a pool or heatpump or other non resistive load by using the multifunctional relay Important Maximum load Heater 1 3 0kW Minimum load Heater 1 150W Recommended cable size 2 5mm Maximun load Relay 16A non inductive Settings GEB teater 1 Set to match the load Heater 2 Type None GEB Heater 3 None Relay Function Set to Export Threshold External Boost Not used Boost Times Set as required to boost the relay controlled load Select T in the menu Tips and Ideas e Smaller loads can be connected in parallel as long as the maximum load is not exceeded gt e immerSUN has built in timers that can replace any timers that have been removed e The External Boost
11. required but there should always be a way of isolating the supply e g the MCB can be used for isolation if the immerSUN is located next to the consumer unit Likewise the load isolator can be eliminated if the immerSUN and the supply isolation switch are located near the heater Important e Maximum load 3 0kW e Minimum load 150W e Recommended cable size 2 5mm e Must be a simple resistive load without electronic controls Settings Heater 1 Type Set to match the load Heater 2 Type None Heater 3 Type None Relay Function Not used External Boost Not used Tips and Ideas e Smaller loads can be connected in parallel as long as the maximum load is not exceeded e TheimmerSUN has built in timers that can replace any timers that have been removed The Multifunction Relay is free to use to control other devices The External Boost input is free to use if an auxiliary device needs to have some control over the immerSUN 31 Wiring Two Heater a a lt SUPPLY LOAD ISOLATOR ISOLATORS 220 240VAC SUPPLY HEATER AND THERMOSTAT HEATER AND THERMOSTAT 32 Z Two Heater Wiring This is the same as the Single Heater wiring only with a second heater connected One heater is wired to the Heater 1 output a second heater is wired to the Heater 2 output The heaters are heated sequentially i e Heater 1 is heated with surplus power until the thermostat opens the imm
12. supply from the electric supply meter NOT the PV generation meter Clamp the sensor around the LIVE from the meter Ensure the clamp is securely closed around the cable It does not matter which way round the sensor is clamped around the cable the immerSUN will work out the import export direction automatically Normally the sensor will be located inside the switchboard since this is the most practical place to install it and route the cable to the immerSUN PV connected via Henley Block If the PV system is connected via a terminal then the clamp should be installed on the grid side of the block i e between the meter and terminal 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 Using the Wireless Sensor Optional There is an option to use a wireless sensor The wireless sensor is available to purchase as an optional extra When using the wireless sensor option the sensor clamp should NOT be connected directly to the immerSUN See the installation instructions for the Wireless Sensor Ensure that the CT plug is wired to the correct polarity and inserted into position ETL IMMERSUN Note The sensor has a fixed non removable cable of approximately 4mm diameter and 5m long that METER TAIL will need to be routed from live r neutral cable the clamp location to the immerSUN SUPPLY Z DISTRIBUTION METER g
13. ImmersuN immersun Installation and User Guide ENASOLAR V4 Contents Introducing the immerSUN Main Screen Savings Boost Manual Boost Timed Menu View Readings Advanced Settings External Boost Input Multifunctional Relay Installation System Overview immerLINKTM Linking Units immerSU Electrical N at a Glance Connections Sensor Installation Setup EnaSolar Monitoring and Reporting Configuring an EnaSolar Site Wiring Diagrams w w w W W w W W iring Single Heater iring Two Heater iring Three Heater iring Underfloor Heating opt 1 iring Underfloor Heating opt 2 iring Dual Tariff Single Meter iring Dual Tariff Two Meter iring Pool or Heatpump Error Messages Technical Site Instal immerSU Notes For more information visit www enasolar net for Technical Documents and Tutorial Videos Specifications lation Details N Controller Details QU W 0 DO NO 20 22 23 24 26 27 29 30 32 34 36 38 40 42 44 46 48 49 50 51 Introducing the immerSUN Thank you for choosing immerSUN You have made an excellent choice The immerSUN is a Solar PV Self Consumption Controller for heaters It tracks available surplus power from a grid tied PV or Wind turbine system and varies the power to the heater to match the surplus power therefore ensuring all of the green energy is fully utilised trusin
14. Limitation of voltage changes voltage fluctuations and flicker Country of Manufacture UK 48 Site Installation Details Installed By Installation Date PV Panel Type and Size PV Panel Quantity String 1 PV Panel Quantity String 2 Inverter Type Model No Inverter Size Inverter Serial No 49 ImmerSUN Controller Details Serial No Heater 1 Heater 2 Multifunction Relay 50 Notes immersuN Powered b y ENASOLAR Version 4 0 30 March 2015 EnaSolar Limited 66 Treffers Road Christchurch 8042 New Zealand Telephone 64 3 366 4550 Facsimile 64 3 366 0884
15. NAL BOOST BOOST INTERLOCK sf Heater 1 Heater 2 EX BST External Boost Input 24 240VAC Sense Input This input is isolated 13 Disabled A voltage at EX BST will have no effect the input is disabled Boost Heater The selected heater s will be boosted whenever the EX BST signal is present If more than one heater is selected the heaters will be boosted sequentially in the priority order Heater Themostat The EX BST input will act as a thermostat for the selected heater s The heater output will only be active when there is a signal at the EX BST input otherwise the heater will show as HOT on the main screen Boost Interlock This function inhibits boosting manual or timed unless there is a signal on the external boost input Multifunction Relay Disabled The relay will never operate MAIN MENU Advanced Settings Always On The relay will be ON This function is useful for testing circuits connected to the relay contacts ADVANCED SETTINGS RELAY WHEN HEATING When Heating A Heater 1 The relay will operate whenever the Heater 2 selected being heated Include Hot Include Hot If ticked the relay will Include Boost remain closed when the heater has reached maximum temperature and it s thermostat is open RELAY FUNCTION Include Boost If ticked the relay will also operate during timed manual y Disabled boost Always On
16. SENSOR TYPE Wired immerLINK Unit Master Slaves 0 Channel 1 Net ID f428 ADVANCED SETTINGS il E Gateway PW 3b5b4436 Set Tariff The tariff should be set to that shown on your utility bill You will need to adjust the tariff from time to time as the tariff changes The tariff should be for the fossil fuel you normally use to heat the appliance The NEW tariff will take effect from the date entered which can be a past or future date meaning the NEW tariff does not need to be set on the day it changes Set Heater Priority If two or three heaters are connected the heating sequence can be selected The higher priority heater will be heated until the thermostat opens then the next priority heater will start to be heated and so on When heating a lower priority heater the unit will switch back to the higher priority heater periodically this period is set by Priority Check Period in the Advanced Settings menu If the heating priority is set to Equal then each heater will be heated in turn for the time set by the Priority Check Period in the Advanced Settings menu View Configuration This screen gives an overview of the immerSUN configuration It is useful to check the current settings View Readings This screen shows various readings and other information See the list below for a description of the readings This screen is useful for diagnosing installation issues MAIN MEN
17. U View Readings VIEW READINGS Version 2 30 0 1 Serial 20546 Input Grid Max Voltage Min Voltage Grid I Frequency Exporting Current Output P W M Heatsink Protects Sig Qual Cal Date Reset Power Off 20 10 2013 16 02 2013 20 10 2013 at 16 36 Last Error None Title Version Serial No Input V Grid V Max Voltage Min Voltage Grid I Frequency Exporting Importing Current Output P W M Heatsink Protects Sig Qual Cal Date Reset Power Off Last Error Description Firmware version number and hardware type Serial number of the unit Supply input AC voltage Voltage of the supply connected to the Wireless Sensor where fitted otherwise the same as Input V Maximum supply voltage recorded since last switch on Minimum supply voltage recorded since last switch on Current seen by the sensor clamp Supply frequency Power level currently being imported or exported Input current of the unit Power being delivered to the load Output voltage percentage Temperature of the internal heatsink Count of over current protections since switch on Signal quality of the immerLINK wireless connection obtained between the immerSUN and the wireless CT clamp if utilised not the signal between the immerSUN unit and the Ethernet Bridge Date the unit was calibrated at the factory Date the unit was factory reset Last date and time power was l
18. ave devices The Master immerSUN will control all slaves via the wireless immerLINK Each slave must be IMMERSUN 3st powered from the same phase as Slaves the master Each slave must have its own load The sensor does NOT connect to the slave devices 19 immerSUN at a Glance External overview 1 LCD display 2 3 Cover removable 4 Control buttons Cover screws 20 Cover and Bottom Panel Removed 1 Sensor Clamp 7 EXBST External Boost input 2 LINE mains supply input 8 Mounting holes 3 HEATER 1 9 Cable anchor points 4 HEATER 2 10 Antenna connector 5 RELAY Multifunction Relay 11 Bottom panel removable 6 Cooling fan 12 Bottom panel screws 21 Electrical Connections The electrical connections are made by the pluggable screw terminals See Wiring Diagrams section and choose the most appropriate wiring scheme for the installation Important Ensure that the heater element is 3kW or less If unsure check the element resistance with a multi meter with power disconnected The element resistance must be 160 or more Cable Anchors Important e Earth MUST be connected e Ensure wires are secure in screw terminals e Check plugs are fully inserted Secure cables to the cable anchor points with the cable ties provided 22 Sensor Installation The sensor should be located at the incoming grid supply to the building This will be the
19. ble Connector Plugs Fixing Kit Antenna Locating the immerSUN Often the most suitable location for the immerSUN is near to the distribution board as all the connections required are usually available here Alternatively the unit can be mounted next to the load Note that the Sensor Clamp must be clamped around the incoming mains electrical supply There is the option of using the Wireless Sensor to simplify the installation if required The following should be considered when deciding upon the most suitable location e Close to the main incoming mains electrical supply of the property otherwise the Sensor Clamp will need to be extended or the Wireless Sensor option used Access to heater supply cable this is usually at the switchboard Access to suitable supply via 16A MCB or 13A fused outlet User access to the buttons and visibility of LCD screen Adequate ventilation keeps vents clear and provide airflow around the unit Minimum clearance top and bottom is 50mm although more is recommended for ease of access to case screws e Cable access point through the top bottom or rear of the unit the bottom panel is removable to give better access when wiring Voltage Optimisers If there is a voltage optimiser installed at the property care will need to be taken when positioning and wiring the immerSUN The Sensor Clamp and the immerSUN will need to see the same voltage whether this is the optimised voltage or the non
20. can be set to Holiday Mode when you are away from home This will stop the immerSUN from heating The timed boost will also not operate Set Date amp Time The date and time should be set during installation Use this menu option to change the current date or time The date and time will be saved for a minimum of 2 days during a power outage Set Backlight The display backlight can be set to illuminate for a few seconds after a button press Also the backlight can be set to illuminate whenever the unit is heating and or boosting Set Contrast The display contrast can be adjusted if required SET TARIFF Current 000 25 New 000 25 From 01 01 14 Press then use V to make changes SET HEATER PRIORITY Priority 1 2 3 Press then use V to make changes VIEW READINGS p10 VIEW CONFIGURATON HEATER 1 TYPE Immersion Top HEATER 2 TYPE Immersion Bottom HEATER 3 TYPE Disabled MINIMUM EXPORT 50W HEATER PRIORITY 1 2 Set Tariff Set Priority 1 2 View Readings View Configuration Advanced Settings Lock Advanced y LOCK ADVANCED y Lock Advanced If ticked the Advanced Settings menu is locked the passcode will need to be entered to access the menu RELAY FUNCTION If the Advanced When heating Settings menu is 12 unlocked the menu Include Boost can be immediately EXTERNAL BOOST locked by selecting Boost Heater this option 12 Li
21. cedence For boost times crossing midnight two time slots will need to be used Menu The Menu is Savings accessed by pressing SAVINGS Savings made by the immerSUN are the y button from 2 5kWh 0 63 accumulated The savings are shown 16kWh 4 00 74kWh 518 50 315kWh 78 75 315kWh 78 75 in kWh as well as in currency The savings are displayed for Today this Week Month and the Total this year The Total Savings since installation the main screen Use the and buttons to select the required menu item then press the v button to select the menu option BOOST TIMES Press the X button to exit or go back from a menu MAIN MENU HOLIDAY MODE Savings Press to put unit in Boost Times standby Holiday Mode Press X to cancel Set Date amp Time Set Display SET DATE amp TIME Date 16 02 14 Time 11 34 Press then use V to make changes SET BACKLIGHT Button Press 30s When Heating ON When Boosting ON Press then use to make changes SET DISPLAY Set Backlight Set Contrast SET CONTRAST Contrast 5096 Press then use V to make changes 06 30 07 30 MTWTFSS 16 30 17 30 MTWTFSS 07 30 08 30 MTWTFSS 17 30 18 30 MTWTFSS 08 30 09 30 MTWTFSS 18 30 19 30 MTWTFSS is shown Boost Times Boost times can be set to turn on the selected heater at full power regardless of surplus export power available Holiday Mode The immerSUN
22. dvanced SET PASSCODE 0000 Settings menu can be changed in this screen wo w FACTORY RESET LOCKED FUNCTIONS Locked Functions Reset CURE Set Date amp Time Some functions can be hidden from Reset Savings Boost Times the main menu to prevent accidental Reset Immerlink Manual Boost changes Use this option to enable or Execute Set Tariff disable these functions Press X to cancel Set Priority Daylight Savings Time Enable or disable automatic clock Factory Reset To Di all settings DAYLIGHT SAVINGS TIME adjustment for Daylight Savings Time to factory defaults y Enabled DST When enabled the clock will use this function Last Sunday be adjusted forward by one hour Reset Config and March amp October March and back one hour in October Reset Savings can be Press X to exit Please Note This is for the Northern individually selected Hemisphere 12 External Boost Input What Does It Do This is an external input which can be used to trigger a boost or enable disable heater outputs The External Boost input is the 2 terminal connector labelled EX BST Any AC voltage from 24V to 240V present on these terminals will be recognised by the immerSUN MAIN MENU Advanced Settings ADVANCED SETTINGS External Boost EXTERNAL BOOST Disabled y Boost Heater Heater Theromstat Boost Interlock EXTERNAL BOOST BOOST HEATER v Heater 1 Heater 2 EXTERNAL BOOST HEATER THEMOSTAT Heater 1 sf Heater 2 EXTER
23. e Power Control Technology The immerSUN uses TruSine power control technology This means that the voltage is very smoothly adjusted to alter the power to the heater The power going to the load is a non distorted true sine wave only the voltage is altered This control technology is unique to the immerSUN and is more sophisticated than any similar product on the market TruSine technology ensures trouble free operation with all inverters and compatibility with all import export energy monitors Feature Set Tracks surplus power and diverts this energy to the load trusine technology for fast and smooth automatic power adjustment Works with many microgeneration systems including PV Wind and Hydro systems Clear graphical backlit LCD display Indicates current import export power levels as well as diverted power to the heater Savings are accurately reported for the day month year as well as the total since installation Savings can be displayed in several currencies as well as kWhs No need to change immersion heater Works with many types of heater including storage panel and underfloor One immerSUN can control up to 3 heaters sequentially Only one current sensor for ease of installation with the option of a wireless sensor Built in 7 day programmable boost timer Manual boost function for both heater outputs Integral multi function relay to provide additional functions such as control cylinder de stratification pump control and
24. elay will activate when the exported power is greater than the set threshold n this mode the relay can also be controlled with the Manual and Timed Boost options Installation Select Wiring Diagram p2 Make Electrical Connections p2 Install Sensor Complete Setup p2 Change Settings if required a p23 to a high temperature for the purpose of Legionella control This is an ideal Heat Pumps and Solar Thermal Legionella Control Heat pumps often need to use the immersion heater to get the hot water application for the External Boost input The immersion heater should ONLY be connected to the immerSUN do not connect the immersion heater to the heat pump or solar thermal controller ON OFF Control of Other Appliances Only resistive loads e g heaters can be connected to the variable power Heater 1 and Heater 2 outputs However it is possible to simply switch ON OFF other types of devices by using the Threshold option of the Multifunction Relay Cylinder Destratification The effective capacity of a hot water cylinder with a top mounting immersion can be increased by pumping the hot water to the bottom of the cylinder therefore allowing the immersion heater to heat the top section of the cylinder again The Multifunction Relay has a De strat Pump control option for this purpose 16 What s in the Pack immerSUN Installation and User Guide Sensor Clamp with connected 5m ca
25. en the display module and the inverter is well plugged in LED indications on Ethernet Bridge LAN 5 Red No Ethernet connection Check connection to router Red Flashing Trying to get a network connection Green O K Connected to router and internet Radio Red No signal being received from immerSUN Check aerials are connected and that there is a good signal path Red flashing In process of connecting to immerSUN Orange Connected to immerSUN immerSUN will display BRIDGE FOUND Orange Flashing Green Data is being sent to and from the immerSUN and the inverter Normal operational indications EnaSolar PV Hot Water Inverter Connected LAN LED Orange or Green Radio LED Orange Flashing Green 28 Wiring Diagrams DISCLAIMER These wiring diagrams show typical examples It is up to the installer to ensure the installation conforms to the appropriate wiring regulations and network connection standards 29 Wiring Single Heater HEATER 1 SUPPLY LOAD ISOLATOR ISOLATOR 220 240VAC SUPPLY HEATER AND THERMOSTAT 30 Z Single Heater Wiring This is the most simple installation and the most common One heater is wired to the Heater 1 output The heater is heated with surplus power until the thermostat opens the immerSUN will then display HOT The surplus power will then be exported until the thermostat closes and heating will resume Isolators The isolators shown may not be
26. erSUN will then display HOT After a few seconds providing export power is still available Heater 2 will start to be heated If Heater 2 reaches maximum temperature the display will Show HOT and the immerSUN will switch back to Heater 1 During heating of the lower priority heater the immerSUN will switch to the higher priority heater periodically to check if it can take more heat The heating priority can be set in the Main Menu Set Priority Also the period of time between heater checks can be set in the Advanced Settings Menu Priority Check When both heaters are HOT any surplus power will be exported Important e Maximum load 3 0kW each heater e Minimum load 150W each heater e Recommended cable size 2 5 e Must be a simple resistive load without electronic controls Settings Heater 1 Type Set to match the load Heater 2 Type Set to match the load Heater 3 Type Disabled Relay Function Not used External Boost Not used Tips and Ideas e Smaller loads can be connected in parallel as long as the maximum load is not exceeded e TheimmerSUN has built in timers that can replace any timers that have been removed The Multifunction Relay is free to use to control other devices The External Boost input is free to use if an auxiliary device needs to have some control over the immerSUN 33 Wiring Three Heater HEATER AND THERMOSTAT SUPPLY ISOLATOR 220 240VAC SUPPLY 34 a lt
27. g for heat By utilising this wiring and configuration the thermostat could be of any type since it is only providing a signal input to the immerSUN and does not form any part of the immerSUN variable voltage output circuitry Important e Maximum load 3 0kW each heater e Minimum load 150W each heater e Recommended cable size 2 5mm Must be a simple resistive load without electronic controls Settings Heater 1 Type Setto match the load Heater 2 Type Underfloor Heating resistive load only Heater 3 Type Disabled Relay Function Not used External Boost Heater Thermostat Heater 2 Tips and Ideas e Smaller loads can be connected in parallel as long as the maximum load is not exceeded e immerSUN has built in timers that can replace any timers that have been removed e The Multifunction Relay is free to use to control other devices 39 Wiring Dual Tariff Single Meter 220 240VAC SUPPLY off peak SUPPLY ISOLATOR SUPPLY ISOLATOR L NE 220 240VAC 24 hr SUPPLY a a lt 25 LOAD ISOLATORS HEATER AND THERMOSTAT HEATER AND THERMOSTAT 40 Dual Tariff Wiring Single Meter It is simple to wire the immerSUN to handle dual rate tariffs when there is only one supply meter The External Boost input can be used to detect when the economy rate electricity is available and automatically boost the heater output Note that the heater will always be boosted
28. gh setup Heater 1 MUST be connected and functional Check The heater is not isolated the thermostat is closed e g the water is not already hot the heater is not faulty Test The heater can be tested by measuring the L N resistance it should be between 160 and 3500 Note The immerSUN MUST BE OFF for this test SENSOR ERROR The sensor is giving unusual readings Check The sensor is properly located and clamped around the correct cable the sensor is wired to the CT terminals Test The sensor can be checked by measuring the resistance across the CT terminals it should be about 2000 when not plugged in When connected to the unit it should be approximately 380 Note The sensor may need to be unclipped from the cable before testing INTERNAL FAULT There is a problem with the unit Contact technical support or the installer Check None possible Test None possible 46 10 13 ERROR 6 UNIT OVERHEAT Check Ventilation ERROR 7 OUTPUT OVERLOAD Check Heater rating ERROR 8 LOAD SHORT CIRCUIT Check Heater ERROR 9 UNDER VOLTAGE ERROR 10 OVER VOLTAGE ERROR 13 FAN FAULT UNIT OVERHEAT The unit is overheating Check There is adequate ventilation and that the vents are not blocked OUTPUT OVERLOAD The output current is too high The heater connected is too large Check The heater KW rating it should be less than 3 0kW and more than 150W LOAD SHORT CIRCUIT One of the
29. he home network router and to the power 9o Set up in the immerSUN Controller Tariff Set Currency to S Set tariff to the cost of your power 9 Setupin the immerSUN Controller Advanced Settings immerLINK immerLINK search Channel No Set to a number between 1 8 10 Press the button on the EnaSolar Ethernet Bridge until the LED starts flashing red then orange then eventually turns green The immerLINK search screen should now show Bridge Found Exit x If Bridge Found is not displayed the bridge may need to be positioned closer to the immerSUN Controller also check that the antennas are firmly secured on both units 11 Repower the inverter 12 Tap the front screen of the inverter until the water heater screen is displayed It should display Connected If Connected is not displayed please see PV Hot Water Error Messages on page 28 These issues need to be fixed before moving to the next step 13 Display the web page on the inverter it should be displaying the PV hot water inverter generation total consumption grid export inverter input 1 and inverter input 2 data 14 Set up boost times and relay functions on the ImmerSUN Controller if required by the customer 27 PV Hot Water Messages as displayed on the inverter LCD DISABLED After 10 minutes of not FINDING the inverter will display DISABLED if an Ethernet Bridge has never been connected To fix turn the power to the inverter off display goes blank
30. he immerSUN can be programmed to boost the heating for each heater at certain times Boost means that the heater will be at full power regardless of the amount of available export power This means that power may be drawn from the mains grid supply during boost times The Boost Times can be accessed from the Main Menu Once in the BOOST TIMES screen use the and W buttons to select the boost time you wish to change then press You can now edit the boost times use the and W buttons to change the start time end time days of the week and heater number for the boost press the w button to move to next section Press the X button to exit edit mode MAIN MENU Boost Times BOOST TIMES 06 30 07 30 MTWTFSS H 16 30 17 30 MTWTFSS H 07 30 08 30 MTWTFSS H 17 30 18 30 MTWTFSS H 08 30 09 30 MTWTFSS H 18 30 19 30 MTWTFSS H HEATER number or type Special heater types There are two special heater types T and B These will only be available if the Multi Function Relay is set to Export Threshold or Boiler Boost and wired correctly T Export Threshold boost the appliance will be activated for the boost period B Boiler boost the boiler will be activated for the boost period Important points Up to six different boost times can be entered Each week day can be individually selected for each boost time Only ONE heater can be boosted at any one time If any boost times overlap the latest timed boost will take pre
31. king Sensor 50 SETUP COMPLETE Please wait Wireless Setup 24 Setting up an ImmerSUN when not using heater outputs When there is a requirement to use only the multi function relay the immerSUN still requires initial configuration so that the grid power direction import and export is correctly registered by the unit With no resistive element permanently present under this circumstance a temporary load needs to be provided during the set up process only This can be achieved by temporarily wiring a resistive only load of less than 3 0kW gt 150W to the Heater 1 terminal plug conducting the set up process and then removing it Once the set up is complete and providing the sensor clamp is not relocated the immerSUN will continue to correctly monitor and measure the grid power even after a power outage situation 1 Manufacture a suitable temporary resistive only load An electric jug or radiant heater without electronic controls or fans is suitable 2 Connect this temporary load to the Heater 1 terminal plug and follow the standard set up process on page 24 3 Disconnect the temporary load and confirm correct operation of the immerSUN 25 EnaSolar Monitoring and Reporting ENASOLAR INVERTER WIFI LINK og CILLI 0n ENASOLAR ROUTER ETHERNET BRIDGE RADIO LINK NOT WIFI L PV HOT WATER ENASOLAR INTEGRATED CONTROLLER IMMERSUN REPORTING Only a
32. ost to the unit Last error number with date and time 10 Advanced Options Advanced Settings Advanced Settings HEATER 1 TYPE Heater Type Advanced Settings are None The heater type can be set for each accessed via the Main Immersion T heater connected Each heater type Menu Advanced Immersion B is represented by a different symbol Heater h i Settings Option on the main screen BM Underfloor Pool Minimum Export DAIPAMIUETEXEORT This is the minimum level of export Minimum Export 50W power the default is SOW to ensure Press then use that the electricity meter does to make changes not register any import when the immerSUN is diverting energy Check Period This is the time between checking to see if the priority heater s can Press then use V accept more heat e g Once the to make changes heater is at max temperature the unit will switch to the next priority heater however it will switch back again after the set Period to check if there is a demand for heat from the higher priority heater CHECK PERIOD Period 15 min MAIN MENU Advanced Settings ADVANCED SETTINGS Heater 1 Type Heater 2 Type Heater 3 Type Minimum Export Check Period Relay Function External Boost immerLINK Set Passcode Locked Functions Daylight Savings Time Factory Reset RELAY FUNCTION p1 Range 0 60 min in 5 min steps EXTERNAL BOOST p p1 Set Passcode The passcode to access the A
33. s at the property for dual tariff metering it is necessary to make sure that power is drawn from the correct meter The immerSUN must be powered from a 24 hour supply and the heater must be connected directly to the immerSUN however during the economy tariff times the heater needs to draw power from the economy tariff meter This can be achieved by switching the heater from the immerSUN output to the economy supply during the times when the economy supply is available The multifunction relay can be used to achieve this but only where there is no RCD fitted to the water heater With this configuration only Heater 1 will be able to be billed at the economy rate Important Maximum load 3 0kW each heater Minimum load 150W each heater Recommended cable size 2 5mm Must be a simple resistive load without electronic controls Ensure there is no RCD fitted to the water heater circuit The offpeak supply MUST be the same phase as the Line Supply Settings Heater 1 Type Set to match the load This is the heater that is heated by PV or the economy tariff Heater 2 Type Set to match the load Relay Function Set to When boosting Heater 1 External Boost Set to Boost Interlock Heater 1 Boost Times Set boost times to match household use Tips and Ideas e Smaller loads can be connected in parallel as long as the maximum load is not exceeded e TheimmerSUN has built in timers that can replace any timers that have been
34. t BOARD Note The CT cable can be extended up to 100m using a twisted pair cable e g 1 pair of Cat 6 SENSOR CLAMP 23 Setup The immerSUN requires an initial set up to ensure that the direction of grid power import and export is correctly registered by the unit To achieve this a resistive load must be connected to Heater 1 on the immerSUN and must be turned on for the 2 5 minutes that it takes to complete the configuration START SETUP SETTING SETUP Performing Self Test Press to continue Please Wait Installation Setup When the unit is first switched on the SETUP process will begin follow the instructions on screen to complete the setup If any errors occur see ERROR MESSAGES SETUP RADIO SETUP Select Sensor Type Switch on RADIO SLAVE WIRED Wireless Sensor choose channel Y v v Press y to continue CHANNEL No 1 t y SLAVE SETUP WIRED SETUP Select Slave No Check start Master search Heater is ON SETUP press y to continue Thermostat is ON Searching for Slave No 1 Press to continue Wireless Sensor please wait LA Press X to cancel SETUP I I I I I I I I I I I SETUP Checking Sensor I SETUP Searching for Master zu I I I I I I I I I I I I I I I I I I OE Press X to cancel P Thermostat is ON Please wait Press to continue Slave Setup Wired Sensor SETUP Chec
35. tal since the immerSUN has been installed The savings can be displayed as a list or in a graph The savings are shown in kWh as well as financially in the chosen currency For the financial savings to be correct the user must keep the tariff up to date The Set Tariff option in the Main Menu allows the user to set the current tariff this should be set to reflect the kWh cost for the fossil fuel normally used to heat the heater 05 06 13 Wed13 28 2 83hW h SAVINGS Today hr Ba 4 68 12 16 26 SRUINGS 1 8 45 15 kllh 3 75 S9kWh 14 75 622kMh 155 58 943kMh 235 75 mth JFMAMJJASOND Boost Manual A heater can be boosted to full power for a short period regardless of the amount of available export power this function is called Manual Boost and is activated from the main screen Once the boost starts the remaining boost period will be displayed this will start at 1 hour but can be adjusted during the boost A manual boost can be cancelled at anytime 05 06 13 Ved13 28 2 83lWh x gt Akh 2 3kH Press dm Boost Button x y BOOST BOOST Select heater Select Heater x EXIT HEATER 1 HEATER 2 HEATER 3 Boost Option Boost Boost Boost 05 06 13 Wed13 30 2 85kWh MISMAS 1 2 BOOST Adjust Boost Period if desired DECREASE Boost Period INCREASE Boost Period CANCEL Boost Boost Timed T
36. vailable on the local network 26 Configuring an EnaSolar Site You will Need For an existing EnaSolar inverter installation An ImmerSUN Controller EnaSolar Ethernet Bridge a new display PCB mini B USB cable and a laptop with the EnaSolar Solar Installation Utility V3 21 or greater For a new EnaSolar inverter installation An ImmerSUN Controller EnaSolar Ethernet Bridge mini B USB cable and a laptop with the EnaSolar Solar Installation Utility V3 21 or greater 1 Install and configure the ImmerSUN Controller as per Page 16 of the Installation and User Guide power up and configure as per the screen instructions 2 Using the EnaSolar Solar Installation Utility V3 21 or greater on a laptop connect to the existing front panel of the inverter with a mini B USB cable For an existing site please continue to Step 3 for a new installation please go Step 6 3 Goto Advanced Settings Other Read Then Other Stop LED 4 Change the display PCB on the inverter to the new one and plug back into the inverter don t screw the front panel to the inverter yet 5 Connect the mini B USB cable to the new front panel and select Write on the Solar Installation Utility to copy all the existing data to the new display board 6 Goto Setup Click to Set Time and go to Wireless Setup and set up wifi Disconnect the USB cable and screw the front panel back on the inverter 7 Connect the EnaSolar Ethernet Bridge RJ45 CAT6 to t
37. while there is voltage present on the EXT BST connector The Heaters are connected to the Heater 1 and 2 outputs as normal The External Boost input is connected to the economy rate supply Important e Maximum load 3 0kW each heater e Minimum load 150W each heater e Recommended cable size 2 5mm e Must be a simple resistive load without electronic controls Settings Heater 1 Type Set to match the load Heater 2 Type Set to match the load Heater 3 Type Disabled Relay Function Not used External Boost Boost Heater Heater 1 amp 2 Tips and Ideas e Bychanging the External Boost heater number the user can select Heater 1 Heater 2 or both to be automatically boosted whenever the economy rate tariff is available e Rather than connecting the External Boost it is possible to simply program the boost times to coincide with the economy rate times e Smaller loads can be connected in parallel as long as the maximum load is not exceeded e TheimmerSUN has built in timers that can replace any timers that have been removed e TheMultifunction Relay is free to use to control other devices 41 Wiring Dual Tariff Two Meter E G Ripple Controlled Circuit 220 240VAC SUPPLY MUST BE THE SAME PHASE off peak AS THE LINE SUPPLY SUPPLY ISOLATOR E lt sk SUPPLY ISOLATOR 220 240VAC 24 hr SUPPLY HEATER AND THERMOSTAT 42 Dual Tariff Wiring Two Meter If there are two meter
38. xternal Boost Not used Tips and Ideas e Smaller loads can be connected in parallel as long the maximum load is not exceeded e TheimmerSUN has built in timers that can replace any timers that have been removed e The External Boost input is free to use if an auxiliary device needs to have some control over the immerSUN 35 Wiring Underfloor Heating Opt 1 220 240VAC SUPPLY L NE SUPPLY ISOLATOR UFH MAT UFH THERMOSTAT a e lt SUPPLY LOAD ISOLATOR ISOLATOR HEATER AND THERMOSTAT L NE 220 240VAC SUPPLY 36 en Z 9 Underfloor Heating Option 1 Electric underfloor heating UFH can usually be used with the immerSUN This wiring diagram assumes that the UFH is to be used alongside another heater most likely an immersion heater However the UFH system can be used as the only heater by wiring to the Heater 1 output The UFH thermostat is wired so that the External Boost sees a voltage when the thermostat is closed The UFH mat is connected directly to Heater 2 output The External Boost input is used in thermostat mode so that the Heater 2 output is active only when the UFH thermostat is calling for heat By utilising this wiring and configuration the thermostat could be of any type since it is only providing a signal input to the immerSUN and does not form any part of the immerSUN variable voltage output circuitry Important e Maximum load 3 0kW each heater
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