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5. Overview

Microgeneration systems such as Solar PV and small wind turbines are at their most efficient when the

generated energy is consumed on-site rather than exporting it to the grid. This is what we call 'self-

consumption'.

eddi

is an energy management system for use with grid-tied PV or wind turbine systems. Excess energy from

the microgeneration system is used to heat water or rooms rather than exporting it to the grid.
A grid current sensor (supplied) simply clips around the incoming cable. This sensor is used to monitor excess

power and

eddi

automatically adjusts the voltage to the heater load, thereby consuming the surplus power. A

self-powered wireless sensor (

harvi

) is available separately.

An internal expansion interface provides a means to install a Relay & Sensor Board to enable various functions

such as auto switching from day-time and 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 nominal/16A max. heater load

Supports two heaters (subsequentially)

Integral bypass switch

varisine

™ PWM technology

Fan-less cooling

Built-in programmable boost timers

Energy savings data logging

Graphical back-lit LCD screen for ease of use

Overload and short-circuit protection

Automatic Daylight Saving Time adjustment

Relay & Sensor Board add-on option

Wall mounting bracket for ease of installation

Fully EMC and safety compliant (CE)

3-year warranty (with the option of adding an Extended Warranty of 2 extra years)

Integrated WiFi for connecting to internet

RJ45 connector for the option of hardwired Ethernet connection

5.1 Overview Diagram

The diagram on the next page shows the

eddi

as part of a complete energy management system. Other

myenergi

products are shown with details of how they integrate with the grid connection and the

microgeneration system.

Содержание eddi 16A1P01H

Страница 1: ...Rev 2 0 2 DRAFT June 2022 ENGLISH eddi microgeneration energy diverter Installation Manual MODELS 16A1P01H D3201 ...

Страница 2: ... 8 6 Relay Sensor Board 15 8 7 Fitting the Cover 16 9 Set up 16 9 1 Switching On 16 9 2 Testing 17 10 Application Examples 18 10 1 Dual Element Water Heater 18 10 2 Economy Tariff with Dual Rate Meter 20 10 3 Economy Tariff with Separate Meters 22 10 4 Underfloor Heating Mat and Water Heating 24 10 5 Water Heater with Auxiliary Boiler Control S Plan 26 10 6 Heat Pump with Water Heating and Buffer ...

Страница 3: ...operator or third parties Damage to the device and other property of the operator Inefficient operation of the device All persons involved in commissioning maintaining and servicing the device must Be suitably qualified and competent Have knowledge of and experience in dealing with electrical installations Read and follow these operating instructions carefully Always disconnect the device from the...

Страница 4: ...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 nominal 16A max heater load Supports two heaters subsequentially Integral bypass switch varisine PWM technology Fan less cooling Built in programmable boost timers Energy savings data lo...

Страница 5: ...Page 5 of 36 ...

Страница 6: ... usually more effective at passing through walls than a standard WiFi signal radio communication can be affected by many factors such as the distance between the devices the thickness of any walls that the signal has to pass through wall construction and insulation materials large metal objects such as washing machines fridges sinks and baths mirrors electronic products such as televisions other w...

Страница 7: ... Ethernet connection This version of the eddi can also act as the gateway or hub between all your myenergi devices and the myenergi server The gateway device MUST be connected to the internet Note harvi can only be connected using a wireless link to the Master device If radio connection is not possible you have the option to tether two devices using an Ethernet cable When pairing devices they will...

Страница 8: ...e and mark the holes ready for drilling If fixing to timber stud you can use the two central vertically aligned points to screw the bracket directly into the timber 8 2 Clearances NOTE eddi is NOT suitable for installation outdoors Ensure the device always has adequate ventilation do not block the vents or obstruct airflow at the back of the unit eddi must be fixed to a flat vertical surface using...

Страница 9: ...ter rating is 150W Resistive loads only The loads neutral conductor must be connected to heater output N terminal No electronic controls to be connected to Heater terminals mechanical thermostats only No timers to be connected to Heater terminals including mechanical timers 8 3 4 Cable Clamps If using flexible cables or cables not secured by other means the cable clamps must be used to secure the ...

Страница 10: ...Page 10 of 36 ...

Страница 11: ...or Henley Block the CT can be fitted inside the consumer unit There must be only one Grid CT per phase for the whole installation There can be other CTs but only one at the grid connection point also note CTs for third party devices do not matter The CT should be on the Live or Neutral cable The arrow on the sticker of the CT sensor must be pointing towards the consumer unit in the direction of gr...

Страница 12: ...or electrical wiring are eliminated Up to 3 CT sensors may be used with harvi and 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 8 4 5 CT Golden Rules Grid CT Only ONE Grid CT per phase check for only one symbol in Linked Devices Info Located to see ALL import and ALL export curre...

Страница 13: ...that can be drawn by the device e g eddi The current will not be exceeded even during boost An eddi is wired to a 3 4kW heater but the supply to the eddi is only a 13A fused spur Grid Limit Sets the limit that can be drawn from the grid connection i e the maximum import current The eddi and any other linked myenergi device will limit the current they draw if there is a danger of exceeding the set ...

Страница 14: ...for the appropriate CT to AC Battery refer to CT Config Also refer to Supply Grid Battery for information on setting priority of battery systems 8 5 3 2 DC Coupled Hybrid Battery systems that charge directly from the solar array are usually referred to as being DC coupled This type of battery system uses the solar PV inverter to provide power from the batteries thus it is not possible to different...

Страница 15: ... for several different functions or they can be set to operate as a pair 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 for practical examples The Relay Sensor Board is installed by plugging it into the eddi main circuit board using the three p...

Страница 16: ... Either this is your first myenergi device or you are adding this device to an existing myenergi home eco system When you boot up your device you will see the below screen asking if this is 1st device installed or whether you are integrating into an existing system Additional device If you select 1st Device Installed this sets the Master and vHub to ON at start up If you are integrating into a sys...

Страница 17: ...ices for guidance on pairing devices Also refer to the instruction documentation for the other devices NOTE When eddi is diverting surplus power to the heater the grid power figure above the pylon symbol should be 0 0kW Note however if the surplus power exceeds the rating of the heater then this cannot be achieved and some export power will be observed If power is being imported from the grid when...

Страница 18: ...ll the eddi A good level of electrical competence and a reasonable understanding of domestic plumbing systems is assumed for studying these application examples 10 1 Dual Element Water Heater 10 1 1 Key for Wiring Diagram 2 1 eddi device 2 Mains supply 230V AC from B16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Heating element 1 max 3 7kW 5 Isolator 20A double pole 6 Heating element ...

Страница 19: ...irst 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 it can store any more heat When the water is fully heated any surplus power will be exported eddi will switch back to the priority heater and check the lower priority heater every...

Страница 20: ...V AC from B16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Heating element 1 max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 Economy rate electric sense wiring live only when economy rate is available 9 Heating element 2 max 3 7kW ...

Страница 21: ... depending on your check period setting The heating priority can be changed in the Main Menu Heater Settings Priority 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 be toggled on off if e is present the boost will activate only when the boost times a...

Страница 22: ...0V AC from B16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Heating element 1 max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 Mains supply off peak timed 230V AC from B16 circuit breaker or 13A fused spur 9 Heating element 2 max 3 7kW ...

Страница 23: ...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 Heater 1 every 15 minutes 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 to the priority heater and check ...

Страница 24: ...16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Water heating element max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 Mains supply for underfloor heating controller 9 Underfloor heating mat max 3 7kW 10 Underfloor heating controller or thermostat ...

Страница 25: ... 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 Heater Enable 2 so only when the thermostat is calling for heat will eddi apply power to the mat When the underfloor heating thermostat is open eddi will display Max T...

Страница 26: ...10 1 eddi device 2 Mains supply 230V AC from B16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Heating element max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 S plan wiring centre 9 Auxiliary water heating boiler ...

Страница 27: ... 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 owners lifestyle Heating the water during times of generation e g daylight hours is best avoided to allow maximum capacity for the surplus energy Whenever the boost is ...

Страница 28: ... from B16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Heating element 1 max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 Heat Pump with immersion heater output 9 Heat pump immersion heater relay 10 Buffer cylinder 11 Heating element 2 max 3 7kW ...

Страница 29: ...ps 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 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...

Страница 30: ...supply 230V AC from B16 circuit breaker or 13A fused spur 3 Hot water cylinder 4 Heating element max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 Heat pump with immersion heater output 9 Heat pump immersion heater relay 10 Heat pump hot water timer ...

Страница 31: ...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 application the eddi is configured to respond to the eSense signal by fully switching on Heater 1 output regardless of available surplus Installation of...

Страница 32: ...3A fused spur 3 Hot water cylinder 4 Water heating element max 3 7kW 5 Isolator 20A double pole 6 Relay Sensor Board optional add on for eddi 7 Temperature probe type PT1000 optional 8 Swimming pool 9 In line electric pool heater max 3 7kW 10 Pool heater thermostat 16A rated 11 Pool circulation pump 12 Pool circulation pump fused spur ...

Страница 33: ...ch 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 circulation pump 11 will run thus transferring heat from the pool heater 9 to the swimming pool Installation of the temperature probes 7 is optional the heaters mechanical thermostats a...

Страница 34: ...or incorrectly 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 CT section 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 voltage too high The ...

Страница 35: ... the QR Code below https myenergi com manual support Please contact us directly for the quickest solution 13Declaration of Conformity Hereby myenergi declares that the radio equipment type eddi microgeneration energy diverter is in compliance with Directive 2014 53 EU The full text of the EU declaration of conformity is available by scanning the QR code below ...

Страница 36: ...is your unique product identification myenergi Designed and manufactured in the UK by myenergi Ltd Pioneer Business Park Faraday way Stallingborough Grimsby DN41 8FF T 44 0 333 300 1303 E sales myenergi com W myenergi com ...

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