- Advanced Settings
- Linking Devices
All settings are described in the Main Menu section, however, the more commonly altered settings are described in more detail below.
TIme & Date
The date and time are used for the Boost Timer and the savings calculations and therefore should be set correctly.
In the event of a power-cut, eddi will still keep track of the time and date for a few days, so when power is restored the clock will not need to be reset.
Time is always in 24-hour format but the date format can be changed.
The priority for heater outputs can be set to Heater 1 or Heater 2. The priority heater will be heated first with the surplus power and only when fully 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 immediately switch back to the priority heater if the temperature drops by more than the set Hysteresis. The Hysteresis can be set in the Temperatures menu of the Relays & Sensors menu option.
The heater icons shown on the main screen can be individually set for both heater outputs. This gives an installation specific, graphical representation which heater is active. For example; Heater 1 could be a hot water cylinder and Heater 2 could be a radiator. This function can be accessed via the Settings/Display/Icons menu.
As well as being able to customise the heater icons, it’s also possible to change the generation type from solar to wind.
2. Advanced Settings
The Advanced Settings menu is passcode protected.
The default passcode is 0 0 0 0 although it can be changed with the Passcode menu option.
Supply Grid – Phase
The Phase setting is only used when installing the eddi in a 3-phase property.
It should be set to match the phase number that the eddi is wired to so that the power measurements are correct and that the eddi responds to the correct phase when using the harvi wireless sensor.
Supply Grid – Device Limit
Sets the maximum current that the eddi will draw (including when boosting). This is useful if the supply current is limited, like a 13A fused spur rather than a 16A MCB.
Supply Grid – Grid Limit
Sets the limit that can be drawn from the grid connection (i.e. the maximum import current or the main fuse rating). Grid Limit is a global limit; all the myenergi networked devices will be included when limiting.
Example: A property has a grid supply limit of 65A, several appliances are on and the property is consuming 12kW (52A) by other appliances and the user wants to boost the water heating. If the water heater is rated at 3kW (13A), the total consumption would exceed the allowed import current. However, with a Grid Limit setting of 60A, eddi would limit the power to the heater to 1.8kW (8A) and therefore the maximum allowed import current would not be exceeded.
Supply Grid – Battery
If the property has a static AC battery system installed, it’s possible to get the eddi to work in harmony with the system, provided a CT has been installed to monitor the battery inverter.
See Battery Storage Systems for more information about battery storage systems.
|None||There is no battery system installed.|
|Limit to Gen||Will limit the output of the eddi (except when boosting), to prevent unwanted draining an AC coupled battery system. This setting does not require a CT to monitor the battery, but does need a CT to monitor the solar/wind generation.
Note: This setting is to support legacy installations – it is preferable to install a CT to monitor the battery and use one of the settings below.
|Avoid Drain||Stops the eddi (or other linked myenergi devices) draining the battery when using surplus power from the solar or wind generator.|
|Avoid Charge||Effectively allows the eddi (or other linked myenergi devices) to take priority over the battery when charging from solar or wind generation.|
|Avoid Both||Provides both of the above functions.|
Supply Grid – Net Phases
When enabled, all readings from 3-phase myenergi devices and harvi units configured as 3-phase, will be netted. This means that surplus generation on ANY phase will be considered to be available for consumption on ANY other phase.
See Three-Phase Systems for more details about myenergi devices on 3-phase supplies.
Supply Grid – Exp Threshold
This is the amount of export that must be exceeded before eddi starts diverting power to the heater loads. Once diverting starts all the surplus power, less the Export Margin (see below) will be diverted to the heater load.
Supply Grid – Response Delay
This setting gives a delay before eddi starts to divert power (after the Export Threshold is exceeded).
The default setting is 0s (zero seconds), however, if there is an AC-side battery storage system installed at the property, this may need to be increased. For example, the storage system will be trying to charge the batteries with the surplus power, but because eddi is very fast, the surplus power would have already been taken-up by eddi. This may be undesirable as it would usually make more economic sense to store 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 the heaters, however, it is sometimes desired to have a minimum export level at all times.
The CT1 and CT2 inputs are configured depending on the connected CT sensors. The internal CT which measures the output current also has some settings.
Note: These settings are the same when using CTs with the harvi device, however, they are set via the Linked Devices menu rather than the CT Config menu.
Important: There must by only one Grid CT set (per phase) for the whole installation.
|CTIL||This is the internal CT which measures the output current of the eddi.|
|None||No CT connected.|
|Grid||Grid CT monitors the import and export power of the property, this is main control CT and there must only be one Grid CT set for each phase.|
|Generation Only||Monitors Solar PV or Wind generation.|
|Storage Only||Monitors a device that can ‘store’ energy (e.g. a third-party energy diverter) and enables the eddi to take priority over it. The power used by the third-party device is considered as surplus power unless the device is intentionally using grid power (i.e. it is boosting).
The CT should be installed on the Live supply cable feeding the diverter, with the arrow pointing away from it.
|Gen & Battery||Monitors Solar PV or Wind generation that is combined with a DC-coupled battery.|
|Monitor||Monitors any load, for example a washing machine or the lighting circuit.
This setting can also be used to limit current drawn by myenergi devices on a particular circuit which includes other loads – see Load Balancing / Current Limiting for more details.
|AC Battery||Used to monitor an AC-coupled battery.
With this setting it’s possible to manage the distribution of surplus energy between the battery and the eddi (including myenergi devices).
The CT should be installed on the Live supply cable of the battery inverter/charger, with the arrow pointing away from it.
CTs can be put in groups so that their readings are netted. For example, you might want to monitor two solar PV systems and see the total generation on the display. Use Group in the CT Config menu to set which group the CT should be in.
Note: Different CT Types cannot be in the same group, the group names make this clear. Only the first 4 groups can be used for current limiting, see Group Limits below.
Current limits can be set for certain CT Groups. When a Group Limit is set the myenergi devices in the group will limit the power they draw to keep within the set limit.
Group limits should be set only on the master device – see Linking Devices for details about master devices.
It is possible to use more than one group limit type (e.g. IL1 with MN1, so that there are two conditions for limiting).
|Group Limit example||Additional CT installed||CT config (all devices)|
|Limit current drawn by two eddi devices that are on the same 20A supply.||None; the internal CTs are used.||CTIL
Group Limit: 20A
|Limit current drawn by an eddi device that is fed from a 25A supply which is also feeding another appliance (e.g. a tumble dryer).||One CT is clipped around Live of the 25A supply and wired to CT2 of the eddi.||CT2
Group Limit: 25A
|Limit current drawn by two zappi devices that are in a garage which is fed from a 40A supply. A washing machine and dryer are also in the garage.||One CT is clipped around Live of the 40A supply to the garage and wired to CT2 of one of the zappi units.
Note: The other zappi does not need to have a CT connected, but it will still need to have a CT input configured to be in the same Monitor group.
Group Limit: 40A