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Operation

Boost Time Conflicts

Both heaters cannot be active at the same time and so if the boost times are conflicting, the higher priority heater will take

precedence. (See

 Priority 

on page 19).

If one or more boost times conflict for one heater, the boost will follow the latest time or longest duration.

Cancelling Boost

The boost can be cancelled at by pressing 

 twice during a boost.

operation and installation manual

eddi

13

Summary of Contents for eddi

Page 1: ...eddi operation and installation manual myenergi uk Rev 1 0 August 2017 ...

Page 2: ......

Page 3: ...l Element Water Heater 34 3 Economy Tariff with Dual Rate Meter 36 4 Economy Tariff with Separate Meters Heater 1 38 5 Economy Tariff with Separate Meters Heater 2 40 6 Radiator and Water Heating 42 7 Underfloor Heating Mat and Water Heating 44 8 Water Heater with De stratification Pump 46 9 Water Heater with Auxiliary Boiler Control Y Plan 48 10 Water Heater with Auxiliary Boiler Control S Plan 5...

Page 4: ...erator Inefficient operation of the device All persons involved in commissioning maintaining and servicing the device must Be suitably qualified Have knowledge of and experience in dealing with electrical installations Read and follow these operating instructions carefully Always disconnect the device from the supply before removing the cover The device is not to be used by persons including child...

Page 5: ...d night time supply heat pump interfacing for Legionella control and temperature sensing eddi utilises myenergi s proprietary varisine technology to ensure compliance with worldwide power grid standards Feature Set 3 68KW 16A max heater load Supports two heaters sequentially Integral bypass switch varisine PWM technology Fan less cooling Built in programmable boost timers Energy savings data loggi...

Page 6: ... EV charging with surplus power from microgeneration varisine Technology ensures loads are supplied by a clean AC sine wave only the voltage is varied harvi Harvests power from the sensor and transmits the import export information to the load controlling devices Wiring or batteries not required eddi Continually adjusts the power to the heater elements making full use of surplus green energy witho...

Page 7: ...alue and move to next setting Heater output indicators 1 2 Illuminates when the respective heater output 1 or 2 is active The brightness will vary with the output voltage If both 1 2 are lit together the heaters are at maximum temperature ON OFF and BYPASS switch This switch has three positions I ON eddi is on this is the normal position 0 OFF eddi is off the power on indicator will be off II BYPA...

Page 8: ... Generation Sensor is installed either connected to CT2 input or a harvi device Message Icon When this icon is present there is a message from the myenergi server This only applies if you have the myenergi hub device Date Time The current date and time Status Icons These icons indicate that the import limiting is active house a relay is on R1 R2 or the e Sense input is live e eddi Icon This eddi u...

Page 9: ...mming Pool Power Flow Direction Small Amount Select Relay Power Flow Direction Medium Amount Message Available Power Flow Direction Large Amount Import Power Limiting Active Waiting For Surplus Power Relay 1 or 2 On Maximum Heater Temperature Reached Economy Tariff Electricity Available eddi Device Normal Active Heater Number eddi Device Too Warm output limited Instantaneous Power Accumulated Ener...

Page 10: ...yed under the heater icon 1 30kWh in this example Now the house is smiling because there is no grid electricity being used Max Temp Reached The heater is now at maximum temperature Now there are no arrows or power figures for the heater and a thermometer symbol is shown As eddi is no longer able to divert the surplus power to the heater and so this is now exported to the grid 0 8kW in this example...

Page 11: ...ill start with a duration of 1 hour this can be adjusted during the boost The boost can be cancelled at any time Activating Manual Boost 1 From the main screen press 2 If there is more than one heater you may select which heater you wish to boost by pressing or to change heater Press to start boost 3 The boost duration may be altered by pressing or during the boost Cancelling Manual Boost The boos...

Page 12: ...lot and whole line will be highlighted again 8 Press to exit the BOOST TIMER screen Economy Tariff Boosting Boosting only when economy rate electricity is available can be achieved in one of three ways 1 By setting the boost timer to coincide with the economy tariff times This option should be used only if the electricity meter is a dual rate meter modern meters usually are 2 Boost only at set tim...

Page 13: ...nflicting the higher priority heater will take precedence See Priority on page 19 If one or more boost times conflict for one heater the boost will follow the latest time or longest duration Cancelling Boost The boost can be cancelled at by pressing twice during a boost operation and installation manual eddi 13 ...

Page 14: ...uency Exporting Importing Power being imported or exported from or to the grid respectively Grid Current AC current at grid connection point including reactive currents READINGS 3 3 Exporting Importing Power being imported or exported from or to the grid respectively Generation Power from the generator if available Consumption Power consumed by the house if available Diverting Total diverted power...

Page 15: ... it can store any more heat Advanced Advanced menu and settings passcode protected Default passcode 0 0 0 0 Advanced Menu Advanced Menu Options Description Supply Grid Phase Set the supply phase to use for this device see Advanced Settings page 20 for more information Exp Threshold Level of export which must be seen before the eddi will start diverting power to the heater see Advanced Settings pag...

Page 16: ...Sets the temperature drop required from Set Limit before heating resumes Readings Current temperature readings of the probes Relay 1 Disabled Disable Relay 1 control relay is always off Export On Threshold When export power exceeds this threshold the relay will operate Off Threshold When the export power is under this threshold the relay is switched off Inc Diverted Surplus power currently being d...

Page 17: ...erate only if it has been off for this amount of time Import On Threshold When import power exceeds this threshold Relay 2 will operate Off Threshold When the import power is under this threshold the relay is switched off Min On Time When the On Threshold is exceeded and the Relay switches on it will remain on for at least this time after the import drops below the Off Threshold Min Off Time When ...

Page 18: ... will act as an thermostat for Heater 2 the heater will only be able to be heated when eSense has a voltage present Heater 1 2 The eSense input will act as an thermostat for both Heater 1 and Heater 2 the heaters will only be able to be heated when eSense has a voltage present Boost Enable Boost Enable 1 The eSense input will act as an enable for the Boost Timer for Heater 1 The Boost Timer has an...

Page 19: ...ly heated will eddi start to divert power to the lower priority heater eddi will switch back to the priority heater if it has cooled and the thermostat for the heater is closed When heating the lower priority heater the Check Period sets how often the priority heater is checked to see if it can store any more heat If the Relay Sensor Board is installed and temperature probes are used eddi will imm...

Page 20: ...the energy in the batteries as priority By introducing a small Response Delay say 5 seconds the battery system is given chance to respond before eddi does Supply Grid Export Margin This sets a minimum level of export power which is maintained when eddi is diverting surplus power to the heaters Normally Export Margin would be set to 0W zero Watts and all of the available surplus will be diverted to...

Page 21: ...be searching for other devices which are on the same channel and are in Pairing Mode Any devices found are listed along with their unique serial numbers 5 Select the device you want to add by highlighting the appropriate device using the and buttons and then pressing The device will then be added and the screen will return to the previous menu Channels On rare occasions it is possible that there a...

Page 22: ... the symbol is shown along side a device it indicates that communication has been lost from the device Linked Devices Information The current status of all linked devices can be viewed together in the LINKED DEVICES INFO screen which can be found from the Main Menu This screen lists all the linked devices and the priority setting for each device The current device is shown in CAPITAL letters To th...

Page 23: ...ich comes attached to the unit 1 With the unit on its back on a flat surface remove the front cover by unscrewing the two screws 1 and lifting it off 2 Loosen the two mounting bracket securing screws 2 and separate the bracket 3 from the eddi 3 Offer the bracket up to the wall and mark the holes for drilling If fixing to a timber stud wall you can use the two central vertically aligned fixing poin...

Page 24: ... resistive heaters can be used with eddi examples include immersion heaters storage heaters convection heaters and underfloor heating mats Refer to the Application and Examples section for wiring diagrams using different heater types Whichever heater type is used the following criteria must always be observed One or two purely resistive loads may be connected Note only one is live at any one time ...

Page 25: ... optional A second sensor can be fitted to monitor generation This can be wired to the eddi or harvi harvi wireless sensor option Harvests power from the grid sensor and transmits the import export information to the eddi Electrical wiring or batteries are not required Not supplied available separately 1 or 2 resistive heating loads can be used 3 7kW max load for each heater sequentially heated Ma...

Page 26: ...led provided there are suitable loads Note it is usually possible to split a 3 phase heating element into 3 individual elements by removing the links It is possible to net the export power across phases if using the harvi with three Grid Sensors This allows the eddi to use surplus power from any phase and not just the phase which the eddi is installed on However you must be sure that the electrici...

Page 27: ...h Grid and Generation Sensors it also supports 3 phase systems if three sensors are connected Refer to the harvi installation guide for details on installing and configuring harvi for your system Generation Sensor Installation optional accessory There is an option to add an additional sensor available separately for monitoring the generation When this sensor is installed the main screen will detai...

Page 28: ...ir The relay functions include Export Threshold Import Threshold Operate when heating De stratification pump control Timed operation Fault signal for BMS systems Refer to Application Examples in this guide and Relays Sensors Menu for practical examples and function descriptions Relay Sensor Board Installation The Relay Sensor Board is installed by plugging it into the eddi main circuit board using...

Page 29: ... Cover Refit the cover and secure with the two M3x12 screws 2 Ensure the locating tabs 1 are correctly positioned inside the slots on the chassis before the cover is screwed on operation and installation manual eddi 29 1 1 2 2 ...

Page 30: ...erform a few checks to ensure that the sensors and heaters have been correctly installed and are functional 1 Test the heaters by trying a manual boost see page 11 and check the power reading on the screen for heater corresponds to the heater rating 2 Cancel the boost by pressing the button twice during the boost 3 When eddi is diverting surplus power to the heater the grid power figure above the ...

Page 31: ...se refer to the Safety section page 4 and be sure to read all of the installation sections before attempting to install the eddi A good level of electrical competence and a reasonable understanding of domestic plumbing systems is assumed for studying these application examples Contact your technical support if in any doubt operation and installation manual eddi 31 ...

Page 32: ...Application Examples 1 Single Element Water Heater 32 eddi operation and installation manual N L1 N L2 L N PE N 1 2 5 3 4 6 ...

Page 33: ... Reached and the surplus power will then be exported until the water cools heating will then resume An auxiliary heat source e g a gas boiler is set to heat the water either early in the morning or later in the evening depending on the home owners lifestyle Heating the water during times of generation e g daylight hours is best avoided to allow maximum capacity for the surplus energy This is the d...

Page 34: ...Application Examples 2 Dual Element Water Heater 34 eddi operation and installation manual N L1 N L2 L N PE N 1 2 5 3 5 6 4 ...

Page 35: ...cylinder This makes the most of surplus energy as sometimes there will not be enough to heat the whole volume of the cylinder it s best to heat a smaller proportion i e the top first so there is some usable hot water rather than a larger volume of warm water During heating of the lower priority heater Heater 2 eddi will switch back to the higher priority heater Heater 1 every 15 mins to check if i...

Page 36: ...Application Examples 3 Economy Tariff with Dual Rate Meter 36 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 24hr 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 7 5 6 4 4 8 ...

Page 37: ...tes to check if it can store any more heat When the water is fully heated any surplus power will be exported eddi will switch back the priority heater and check the lower priory heater every 15 minutes If eSense Input is set to Boost Enable 1 2 the BOOST TIMER screen for either heater will include an option to enable the boost timer only when the eSense input is live In the BOOST TIMER the e can b...

Page 38: ...pplication Examples 4 Economy Tariff with Separate Meters Heater 1 38 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 24hr PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 8 5 6 3 7 7 4 4 ...

Page 39: ...rmostat opens then eddi will immediately switch over to Heater 2 heating the bottom of the cylinder This makes the most of surplus energy as sometimes there will not be enough to heat the whole volume of the cylinder it s best to heat a smaller proportion i e the top first so there is some usable hot water rather than a larger volume of warm water During heating of Heater 2 eddi will switch back t...

Page 40: ...pplication Examples 5 Economy Tariff with Separate Meters Heater 2 40 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 24hr PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 8 3 7 7 5 6 4 4 ...

Page 41: ...stat opens then eddi will immediately switch over to Heater 2 heating the bottom of the cylinder This makes the most of surplus energy as sometimes there will not be enough to heat the whole volume of the cylinder it s best to heat a smaller proportion i e the top first so there is some usable hot water rather than a larger volume of warm water During heating of Heater 2 eddi will switch back to H...

Page 42: ...Application Examples 6 Radiator and Water Heating 42 eddi operation and installation manual N L1 N L2 L N PE N 1 2 5 3 4 5 6 ...

Page 43: ...ication Heater 1 the immersion heater in the hot water cylinder is heated with surplus power until the water is hot and the thermostat opens then eddi will immediately switch over to Heater 2 to heat the radiator 6 with surplus power During heating of the lower priority heater Heater 2 eddi will switch back to the higher priority heater Heater 1 every 15 mins to check if it can store any more heat...

Page 44: ...Application Examples 7 Underfloor Heating Mat and Water Heating 44 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 8 3 7 9 6 4 C 10 5 ...

Page 45: ...erting the surplus power During heating of the lower priority heater Heater 2 eddi will switch back to the higher priority heater Heater 1 every 15 mins to check if it can store any more heat The heating priority can be changed in the Main Menu Priority The underfloor heating controller or thermostat 10 is wired to the eSense input of the Relay Sensor Board 6 The eSense Input setting is set to Hea...

Page 46: ...Application Examples 8 Water Heater with De stratification Pump 46 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 7 6 4 8 9 ...

Page 47: ...from the top of the cylinder 3 down to the bottom thus pulling the cooler water up to the region that can be heated via the immersion heater 4 As the cooler water is drawn up the thermostat will close again and eddi is able to resume heating the water When the immersion heater thermostat closes the pump will run until the thermostat closes again or until 5 minutes has passed whichever is sooner An...

Page 48: ...les 9 Water Heater with Auxiliary Boiler Control Y Plan 48 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 6 4 1 2 3 4 5 6 7 8 9 10 HW OFF HW ON Y PLAN 8 9 ...

Page 49: ...e cylinder 3 is heated with only surplus power until the thermostat has opened the eddi will display Max Temp Reached and the surplus power will then be exported until the water cools heating will then resume The BOOST TIMER RELAY 1 in the eddi is used to program the auxiliary heat source e g a gas boiler to heat the water either early in the morning or later in the evening depending on the home o...

Page 50: ...xamples 10 Water Heater with Auxiliary Boiler Control S Plan 50 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 6 4 1 2 3 4 5 6 7 8 9 10 HW S PLAN 8 9 ...

Page 51: ...cylinder 3 is heated with only surplus power until the thermostat has opened the eddi will display Max Temp Reached and the surplus power will then be exported until the water cools heating will then resume The BOOST TIMER RELAY 1 in the eddi is used to program the auxiliary heat source e g a gas boiler to heat the water either early in the morning or later in the evening depending on the home own...

Page 52: ...Application Examples 11 Heat Pump with Water Heating 52 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 6 4 8 9 ...

Page 53: ...be exported to the gird and diverts the same amount of power to the heater loads thereby reducing the surplus power down to zero It is not permissible to back feed the eddi device i e a voltage supply must not be connected to the heater outputs Because of this the heat pump immersion heater relay 9 needs to be connected to the eSense input of the Relay Sensor Board 6 instead of the immersion heate...

Page 54: ...Application Examples 12 Heat Pump with Water Heating and Buffer Tank 54 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 8 3 7 5 6 4 10 11 7 9 ...

Page 55: ...d to Heater 2 output Priority is given to the water heating and only when fully heated does the eddi switch to heating the buffer tank Most heat pumps require control of the immersion heater in the hot water cylinder this is to periodically heat the water to a higher temperature in order to kill any Legionella bacteria that may have built up in the stored water Remember it is not permissible to ba...

Page 56: ...Application Examples 13 Heat Pump with Water Heating and Priority Control 56 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 6 4 8 9 10 ...

Page 57: ...higher temperature in order to kill any Legionella bacteria that may have built up in the stored water Remember it is not permissible to back feed the eddi device a voltage supply must not be connected to the heater outputs Because of this the heat pump immersion heater relay 9 needs to be connected to the eSense input of the Relay Sensor Board 6 instead of the immersion heater element 4 In this a...

Page 58: ...Application Examples 14 Pool and Water Heating 58 eddi operation and installation manual RLY1 RLY2 N L1 N L2 L N PE N 1 PT1 PT2 2NO 2C 2NC 1NO 1C 1NC e e 2 5 3 7 11 6 4 9 8 12 10 5 C 7 ...

Page 59: ...ter is hot and the thermostat opens then eddi will immediately switch over to Heater 2 to heat the pool 8 with surplus power During heating of the pool Heater 2 eddi will briefly switch back to the domestic water heater Heater 1 every 15 mins to check if it can store any more heat When Heater 2 is active i e eddi is heating the pool Relay 1 of the Relay Sensor Board 6 will be on and so the pool ci...

Page 60: ...nected to CT1 terminals of the eddi or harvi Check the Grid Sensor is installed on the correct cable see Grid Sensor Installation page 26 Check resistance of the sensor it should be around 200 Ώ when not connected remove the sensor from the cable before testing resistance If using harvi check that the CT input has been set to Grid in the harvi settings under Devices in the eddi menu Not using any ...

Page 61: ...rrectly installed Check the sensor is securely installed on the correct cable and is wired to the CT terminals with the correct polarity Refer to the Grid Sensor Installation section page 26 for details of correct installation 5 Back Feed Voltage Unexpected voltage at heater output The heater output terminals must never be connected to a supply voltage Check heater wiring 6 Over Voltage Supply vol...

Page 62: ...y does not apply if in the judgement of myenergi the product fails due to damage from shipment handling storage incorrect installation accident inappropriate use or cleaning of the product relocation of the product after its first installation 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 seri...

Page 63: ...230V AC Single Phase 10 Supply Frequency 50Hz 60Hz Rated Current 16A max determined by load Standby Power Consumption 3W Generator Size Supported No limit subject to 100A per phase grid supply Heater Load Size 100W min 3 68kW max Economy Tariff Sense Input 230V AC sensing 2 5kV isolated Wireless Interface 868 MHz proprietary protocol for wireless sensor and remote monitoring options Grid Current S...

Page 64: ...myenergi uk Designed and manufactured in the UK by MyEnergi Ltd Church View Business Park Binbrook Market Rasen LN8 6BY 44 0 1472 398182 ...

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