Myenergi eddi 16A1P01H User manual

Rev 2.0.1 July 2022 – ENGLISH
eddi
microgeneration energy diverter
User Manual
MODELS: 16A1P01H
D3202

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Contents
1. Introduction ...............................................................................................................................................................................4
2. Safety ...........................................................................................................................................................................................4
3. Disposal........................................................................................................................................................................................4
4. Copyright.....................................................................................................................................................................................4
5. Overview......................................................................................................................................................................................5
5.1 Overview Diagram..................................................................................................................................................... 5
6. Box Contents.............................................................................................................................................................................. 7
6.1 Optional: Relay & Sensor Board .......................................................................................................................... 7
7. Operation ....................................................................................................................................................................................8
7.1 Controls & Indicators ............................................................................................................................................... 8
8. Display..........................................................................................................................................................................................9
9. Operating Modes.....................................................................................................................................................................10
9.1 Waiting for Surplus ................................................................................................................................................. 10
9.2 Heating........................................................................................................................................................................ 10
9.3 Max Temp Reached ................................................................................................................................................ 10
9.4 Boosting...................................................................................................................................................................... 10
10. Manual Boost........................................................................................................................................................................ 11
10.1 Activating Manual Boost ....................................................................................................................................... 11
10.2 Cancelling Manual Boost ...................................................................................................................................... 11
11. Boost Timer ......................................................................................................................................................................... 12
11.1 Programming Boost Times .................................................................................................................................. 12
11.2 Economy Tariff Boosting...................................................................................................................................... 13
11.3 Boost Time Conflicts.............................................................................................................................................. 13
11.4 Cancelling Boost...................................................................................................................................................... 13
11.5 Boost Stop Mode ..................................................................................................................................................... 13
11.5.1 Cancelling Stop Mode ............................................................................................................................................ 13
12. Configuration Settings..................................................................................................................................................... 13
12.1 Time & Date............................................................................................................................................................... 13
12.2 Priority ........................................................................................................................................................................ 14
13. Advanced Settings ............................................................................................................................................................ 14
13.1 Supply Grid – Device Settings ............................................................................................................................ 14
13.2 CT config..................................................................................................................................................................... 16
13.2.1 CT Groups....................................................................................................................................................................17
13.2.2 Group Limits ...............................................................................................................................................................17
14 Linked Devices......................................................................................................................................................................... 18
14.1 Master & Slave Devices ........................................................................................................................................ 18

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14.2 Channels ..................................................................................................................................................................... 18
14.3 Removing Devices .................................................................................................................................................. 18
14.4 Device Settings ........................................................................................................................................................ 19
14.5 Device Priorities ...................................................................................................................................................... 19
14.6 Linked Devices Information ............................................................................................................................... 20
15 Fault Codes............................................................................................................................................................................... 21
16 Warranty.................................................................................................................................................................................... 21
17 Product Registration / myaccount.................................................................................................................................. 22
18.1 The myenergi app ................................................................................................................................................ 22
18.2 The myenergi Forum............................................................................................................................................ 22
19. Technical Support............................................................................................................................................................. 23
20. Declaration of Conformity.............................................................................................................................................. 23

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1. Introduction
Thank you for choosing eddi. Of course, we think you have made an excellent choice and are sure you will be
very happy with the features, benefits, and quality of your myenergi product.
eddi is an automatic power controller. It ‘tracks’ available surplus power from a grid-tied PV or Wind turbine
system and varies the power to your heater to match the surplus power, therefore ensuring all of the green
energy is fully utilised.
These instructions will help you to familiarise yourself with the eddi. By reading the instructions, you will be
sure to get the maximum benefit from your 'eco-smart' device.
varisine™ Technology
varisine™ is the proprietary power control technology used in the eddi. The technology
enables the output voltage to be very smoothly adjusted in order to alter the power to the
heater. The power to the heater is always a sine wave and only the voltage is altered.
This control technology is more sophisticated than many other products on the market and
the technology ensures trouble free operation with all inverters and compatibility with all
import/export energy monitors and electric meters.
2. Safety
The device hasbeen manufactured inaccordance withthe stateof the art and therecognised safety standards,
however, incorrect operation or misuse may result in:
Injury or death to the 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 supply before removing the cover
3. Disposal
4.
In accordance with European Directive 2012/19/EU on waste electrical and electronic equipment and its
implementation in national law, used electrical devices must be collected separately and recycled in an
environmentally responsible manner. In the UK these requirements are covered by The Waste Electric and
Electronic Equipment (WEEE) Regulations 2013. Ensure that you return your used device to your dealer or
obtain information regarding a local, authorised collection and disposal system. Failure to comply with this EU
Directive may result in a negative impact on the environment.
4. Copyright
Copyright of these operating instructions remains with the manufacturer. Text and images correspond to the
technical level atthe time of goingto press. We reservethe right to make changes. The content of the operating
instructions shall not give rise to any claims on the part of the purchaser. We are grateful for any suggestions
for improvement and notices of errors in the operating instructions.
myenergi zappi, myenergi eddi and myenergi harvi are registered trademarks of myenergi Ltd.

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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 be bought as an optional
extra) 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 / 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 (UKCA & CE)
3-year warranty
Integrated WiFi for connecting to internet
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.

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6. Box Contents
1 x eddi unit with mounting bracket attached
1 x Current transformer with 5m cable (Grid CT sensor)
2 x Antenna
1 x Quick Start Guide
1 x vHub & WiFi Operation Manual
4x screws (for use on cable clamps)
6.1 Optional: Relay & Sensor Board
The relay sensor board is an optional add-on to the eddi and allows the use of multiple wiring configurations.
It includes:
Relays with a capacity for 16A
Two temperature sensor units (PT1000)
eSense input (isolated detection for economy tariff)
The two relays can be independently set for several functions or set to operate as a pair.
These functions include:
Export/Import Threshold
Operate when heating and timed operation
De-stratification pump control
Fault signal for BMS systems

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7. Operation
7.1 Controls & Indicators
1.
Display
Graphical LCD display with LED backlight
2.
Power ‘ON’
Indicator
Illuminates when:
Unit is connected to the mains supply and;
The ON/OFF and BYPASS switch is in the ON position (I)
3.
Control Buttons
Four tactile buttons to navigate the menus and alter settings:
Enter menu (from main screen) | Exit current menu
Move up a menu item | Increase value
Move down a menu item | Decrease value
Boost | Select item | Confirm value and move to next setting
4.
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, both heaters are
at maximum temperature.
5.
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 BYPASS – eddi is bypassed; the mains supply is directly connected to
the Heater 1 output.In this position the Power indicator will be off and the
Heater 1 indicator will be illuminated.

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8. Display
1.
Import/Export
Power
The power being either imported or exported from or to the grid (kW). The
direction of the arrows indicate if the property is currently importing power (left)
or exporting power (right)
The size of arrows is proportion to the level of power. When the property is neither
importin
g or exporting power, the figure will be 0.0kW and there will be no
animated arrows. The property is then said to be 'in balance'.
2.
House Load
Power
The power that the property is currently using in kW.
(Note: This is displayed only when the Generation Sensor is installed directly to a
CT input or a harvi or other myenergi device.)
3.
Operating
Modes
The current operating mode is displayed here.
4.
Generation
Power
The power being generated at the time in kW.
(Note: This is displayed only when the CTs are installed either hard wired to the CT
inputs of the eddi or wirelessly to a harvi or other myenergi device.)
5.
Date & Time
The current date and time.
6.
Mode Icons
These icons indicate that the import limiting is active (house), Demand Side
Response (~) or the eSense input is live (e).
7.
eddi
Icon
The
eddi
unit. If there are wavy lines above the icon, the unit is thermally limiting!
The output power is temporarily reduced.
8.
Energy Diverted
Today
The accumulated energy that has been sent to the heater(s) today.
9.
Temperature
If the optional Relay &Sensor Board is fitted andtemperature probes are installed,
the temperature of the active heater is displayed.
10.
Heater Icon
This icon represents the active heater, and next to it is the heater number.
11.
Power Diverting
to Heater
When
eddi
is heating, arrow will show along with the power in kW.

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9. Operating Modes
9.1 Waiting for Surplus
eddi is waiting for surplus power from the microgeneration
system.
The house in the centre is straight faced as grid electricity is
being used by the house (0.8kW in this example).
We can see that eddi hasn't started heating with surplus power
yet today as there is no accumulated energy; indicated by the
0.00kWh under the water cylinder symbol.
9.2 Heating
eddi
is now diverting power to the heater.
The heater currently being heated is shown by the icon on the
right and the small number (1 in this case) corresponds to the
heater number.
The amount of power being diverted at any one moment is shown
between the eddi icon and the heater icon (in this screenshot the
diverted power is 1.6kW).
All of the surplus energy which has been set to the heater today
is displayed under the heater icon (1.30kWh) in this example.
Now the house is smiling because there is no grid electricity
being used.
9.3 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).
If there is a second heater present (connected to Heater 2), eddi
will switch over to start heating Heater 2.
9.4 Boosting
Boosting means
eddi
is giving maximum power to the heater,
irrespective of available surplus power.
The arrows going to the heater are large and the power figure
(3.0kW in the example screen) is the heater’s maximum power
level.
During a boost , it is likely that there will be power imported from
the grid (2.8kW here).
The timer starts at (1h00m) and will count down until the boost
ends. The boost duration may be altered with the (↑) and (↓)
arrows.