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Are there any additional smart functionality features on the zappi V2?

Yes! New RCD, new safety standards, compatible with PME earthing (no earth rod required), 3-phase option, hardwiring of 3 CTs instead of 2. For more in-depth informationon of the zappi V2 please see our zappi product page specifications

How does the new Zappi differ from the current model? Should I delay my install to get the new version?

It's personal preference, the current zappi is fantastic and will work with the hub and app, the new one offers a lot more installation options and has 22kW and un-tethered option.

What are the installation requirements for the new Zappi ?

(Circuit Breaker or 30 mA Type A RCBO) 40A 2-pole curve B (1-ph version), 40A 4-pole curve B (3-ph version)

How many CTs will be provided ?

1 for the 1-ph version & 3 for the 3-ph version

Will the new Zappi be compatible with other myenergi devices ?

Yes !

How does the “PEN conductor loss” detection works ? How can I avoid installing TT earthing system with an earth rod ?

In case of a PEN fault, Zappi becomes completely isolated from the input supply. That means that all conductors present at the output socket or cable - including protective earth and control signals – will be safe removing any risk of potential electric shock. Zappi meets the requirements of BS 7671:2018, 722.411.4.1 (iii).

What is the minimum charging level on the 3-phase Zappi?

In all cases, the EV is the limiting factor. Some EVs cannot be charged using 3-phase, hence they will only be charged using 1-phase. The charging current is limited by the EV as well, usually it’s 16A, 30A or 32A. If your EV can be charged using 3-phase, Zappi has the capability to charge at a low rate using only 1-phase.

1-phase charging range : 1,4 kW → 07 kW
3-phase charging range : 4,1 kW → 22 kW

Can I charge at different current rate across the phases in 3-ph charging ?

No, when charging with 3-phase, the current drawn by the EV will be the same on all phases.

Can the new 3-phase Zappi be connected to one phase only ?

Yes, it will act like a standard single phase Zappi. However, only 1 CT input will be available.

Can I swap an existing 7kW charger with the Zappi ?

Yes, with the single phase Zappi. The supply is very similar, just make sure you connect the extra CT sensors.

Can I have my existing charger and a Zappi installed together without overloading my supply?

It really depends on your installation setup. You can install Zappi using a dedicated circuit from your main consumer unit and set a “Grid Limit” to make sure you will not blow your main fuse. Or you can install your Zappi from a secondary consumer unit (a garage feed for example) and connect a sensor to act like a “Group Limit”, to make sure that your secondary supply will not be overloaded as an addition to the “Grid Limit”. But don’t forget to ask your DNO if you are allowed to install a second charge point.

Can you switch between 3-ph and 1-ph charging?

A 3-ph Zappi connected to a 3-ph supply can be set to charge in ECO mode using 1 phase only. It’s quite useful when you want to charge at a lower rate to track surplus in ECO mode but have the possibility to charge at 22kW in FAST mode or by using the Boost function.

Can we charge a single phase capable EV with a 3-ph Zappi?

Yes, absolutely!

Will it support Vehicle to Grid (V2G)?


How does ECO and ECO+ mode work when charging 3-ph?

In all cases, charging 3-ph means taking the same power from all phases. Usually, the electricity meter “net” all phases, so does Zappi. You can than have import on one phase and export on another, the total sum being zero. Zappi will make sure that the netting across phases equals 0. If the available surplus is too low for 3-ph charging, Zappi will automatically switch to 1-ph charging, allowing for low charge power.

What can I measure with the Cts on the 3-ph Zappi?

On a 3-ph Zappi, the Cts are supposed to be connected on a 3-ph load (grid, generation, battery etc..). You can’t connect different types of Cts, they have to be installed on the same location. It is different on the 1-ph version of Zappi, that can measure 3 differents (single phase) loads (grid, gen and battery for example)

Which Evs can charge using 3-ph?

The Renault Zoé, the Teslas, the BMW i3, the B-Class electric.

I’m still installing the existing Zappi, what are the requirements?

If you’re replacing an existing charge point, you can install it without adhering to the new regulations. If it’s a brand new install, a type B RCD or a Type A + 6mA DC has to be fitted as well as an earth rod in most cases. Please follow section 722 of the 18th edition for details about installation.

What does the eddi do?

The eddi monitors power imported from, and exported to the grid. Power generated by your PV or other microgen system that is normally exported is surplus power.

The eddi diverts this surplus power, to the water/storage heater or other load upto 3.7kW, thus preventing it from being exported.

How does diverting this energy to a resistive load benefit me the customer?

Surplus energy that is exported back to the grid can be as high as 80% of the total that is generated in the first place. The eddi can help you use up to 100% of your microgenerated energy, which is completely free!

How does eddi save me money?

The eddi allows you to store energy as hot water or heat even when you are out. Later on in the day you are able to use this free hot water in the home. Without the eddi you will be paying up to 15.0p per unit to heat your water. You may as well make the most of your own generated energy whilst it’s available.

eddi allows users to self-consume up to 100% of green energy, the eddi can save you up to €250 annually – more if you use electricity to heat your water and home! The higher the price you pay for your energy, be it electricity, gas or oil, the greater the savings will be from your eddi.

Do the eddi and zappi work together?

Absolutely, it’s always best to have myenergi products installed together. You can prioritse where the energy goes, eddi and zappi will work together to try and consume as much free energy as possible.

What is Varisine?

Varisine technology ensures that the power from the eddi is the same quality as that of the electricity that enters your property from the grid. This technology is the reason the eddi meets all CE product approval guidelines.

Careful consideration must be given when choosing a water heater a cheaper control method, such as phase angle could save money on the the initial cost of the unit, however may end up costing you in the future. We recommend reading into the compliance of products.

Why should I not install a phase-angle, cheaper energy diverter?

Phase angle devices dealing with large loads (up to 3kW) causes unwanted harmonic currents to be injected into the power system. These can cause electrical and radio interference, overheating and damage to inverters and other electrical devices and equipment.

Utilising PWM (varisine) as its control method ensures the eddi is one of the only devices on the market that meets the legal requirements to comply with the limits for ‘harmonic current emissions’ and other important EMC standards.

What if I dont have a hot water tank?

You can still use an eddi if you have an electric microgen system and the following:

- Electric storage heaters (the eddi is compatible with Economy 7 & 10)
- Electric Underfloor heating
- Space saving electric heaters
- Any other electrical resistive load up to 3.7kW with a mechanical thermostat

Downloads Categories





myenergi System Overview Download
Zappi v1 Manual Download
Zappi Datasheet Download
Zappi v2 Manual Download
Zappi Mounting Post Instructions Download
Eddi Manual Download
Eddi Datasheet Download
Harvi Manual Download
Harvi Datasheet Download

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