Home charge points (purchase/problems/questions) (See mod note post#1)

meercat

https://www.boards.ie/discussion/comment/120272651#Comment_120272651

There’s no need for him to come out. He has made given the correct advice. Charger has to be wired independently from a consumer unit that’s capable of taking an additional load. You’re garage consumer unit isn’t capable.

ted1

https://www.boards.ie/discussion/comment/120272853#Comment_120272853

There’s other things coming off the breaker too.

but honestly I’ve never see a device that draws 32Amps protected by a 32Amp breaker

...Ghost...

https://www.boards.ie/discussion/comment/120272136#Comment_120272136

You could get a Hypervolt 2.0 and internally set the max draw from 32A to say 24A. It will mean getting around 5kW rather than 7, but you wouldn't need to change anything in the CU or garage.

Gumbo

https://www.boards.ie/discussion/comment/120272651#Comment_120272651

And I was able to deduct that it’s dangerous based on your info posted.

6mm is what should be feeding the charger alone. Not a charger, sockets, lights and an oil burner.

IS10101 will prohibit it IMO.

Gumbo

https://www.boards.ie/discussion/comment/120272853#Comment_120272853

Or local regulations. Our local regulations will trump this advice.

deadl0ck

Any opinions on the Sync EV charger ?

Edit: Got a quote from SmartZone but not so confident in them after seeing the reviews here: https://ie.trustpilot.com/review/www.smartzone.ie

Have also sent out a few other quote requests - I'm in the Midlands so all recommendations for supply and fit are welcomed !

https://www.boards.ie/discussion/comment/120273669#Comment_120273669

Which regulation?

Gumbo

https://www.boards.ie/discussion/comment/120276408#Comment_120276408

IS10101.

I quoted it above. If you have to ask about which regulation covers electrical installations, dare I say you shouldn’t be doing it yourself. So be careful.

https://www.boards.ie/discussion/comment/120276631#Comment_120276631

IS10101 isn't a regulation, it's the regulations. I was asking you which regulation trumps the manufacturer's recommendation of using a 32 amp overcurrent device for their charger. Not trying to be argumentative here, just curious.

Gumbo

https://www.boards.ie/discussion/comment/120276786#Comment_120276786

IS10101 is the National rules for electrical installations in Ireland. A RECI has to follow these even if the manufacturer requires a lesser standard.

https://www.boards.ie/discussion/comment/120276926#Comment_120276926

I know that, but you told me above that local regulations trump what the manufacturer has stated in the installation manual. My question is which local regulation is breached by using a 32 amp overcurrent device?

graememk

The zappi also can be configured also to limit the draw on a supply cable, and the grid limits. It would not exceed the the limits of said cable.

Say if the zappi was charging, at full power and someone put on a fan heater in the garage. The zappi will throttle back accordingly.

Its the same routine as is used for not putting in a priority switch for an electric shower. If it works for that it can work for a sub board. You put a CT on the supply to the sub board, tell the zappi that CT for monitoring and set a group limit for that group.

MCB protect the cables, not the device.

ted1

https://www.boards.ie/discussion/comment/120277198#Comment_120277198

Shouldn’t it be a RCBO

Felexicon

You also need to take the house load in to consideration. If there is a heat pump, electric shower etc. you have to protect against overloading the main fuse.

It's not as simple as saying there is a cable going to the garage capable of taking the load.

higster

HI, any recommendations for an installer in Claremorris/Ballyhaunis/Knock Co Mayo area? Its on a farmyard with a few consumer units but is an option at main house meter...thanks.

glen123

Apologies if it's a stupid question.

I have solar, Eddi and Harvi. Recently I also had Zappi installed and it has a hardwired CT which according to instructions I turned off in the Zappi menu because Eddi is a Master and Zappi is a slave getting the info from Harvi.

Do I really need that hardwired CT on a Zappi at all then? The reason I am asking is that I don't have a CT clamp on a solar so I was thinking of removing it and putting it on a solar and wire it into Harvi (well not me personally but I'd get someone qualified to do it) so that I can see my solar generation in the Myenergi app. Any advice appreciated.

micks_address

https://www.boards.ie/discussion/comment/120315897#Comment_120315897

A lot depends on the version of the zappi and Eddi you have.. do you have a hybrid invertor with battery and solar? If so it's hard to measure the solar generation on its own via myenergi app

glen123

https://www.boards.ie/discussion/comment/120316083#Comment_120316083

I don't have hybrid invertor or battery.

Eddi is 16A1P01H model (looks like the one they sell on myenergi website at the moment) and same goes for Zappi - ZAPPI-2H07UW.

I thought since Zappi's instructions say "If the GRID CT is connected to the Harvi,make sure that your have turned off the hardwired GRID CT" , which I did which to me means it's effectively not in use and can be used for something else e.g. to monitor solar?

Sierra Oscar

Is it possible to use some sort of cable extension for type 2 chargers, for tethered EV chargers - i.e. EV charger cable to extension cable then to car?

Gumbo

https://www.boards.ie/discussion/comment/120322633#Comment_120322633

No.

Use a longer type 2 cable or use a suitably rated extension cable with the granny.

murphaph

I am thinking of getting an EV and my mind has turned to the wallbox. I'm in Germany so things are a little bit different but the Zappi is available here too and I am probably going to get PV in the coming years also, so a Zappi or equivalent unit makes a lot of sense. I am slightly confused between the different build versions of the Zappi (not the different power ratings, I will get the 22kW one). I originally laid a 10sq cable from my distribution board (not yet connected, electrician will have to do it) out the cellar wall to where I thought I would locate a future wallbox. I also laid armoured CAT7 cable and armoured telephone cable for the CT clamps but these cables are all too short (except the 10sq cable, that is long enough). So I thought I could use the hub thing to relay the signals from the CT clamps to the Zappi but now I see there is no hub available anymore. Is there a way with the harvi to do this?

Sierra Oscar

https://www.boards.ie/discussion/comment/120322804#Comment_120322804

Can't use a longer type 2 as the EV charger is tethered, I can't take off the cable and put on a longer one. No major hassle anyway, more of a convenience issue for paking.

KCross

https://www.boards.ie/discussion/comment/120322854#Comment_120322854

I will get the 22kW one

if it’s for at home you won’t be getting the 22kW one unless you have 3-phase.

if you only have single phase it’s the 7kW one you have to get.

Gumbo

https://www.boards.ie/discussion/comment/120322958#Comment_120322958

Cn you change it?

You can rewire in a longer cable, for example, I have a 7.5m cable there that can be required into any charging unit.

Sierra Oscar

https://www.boards.ie/discussion/comment/120323006#Comment_120323006

It's a Zappi, I'm not sure if it can be? It's something I'd be interested in doing down the line if it can be done.

murphaph

https://www.boards.ie/discussion/comment/120322980#Comment_120322980

Around these parts the domestic supplies are pretty heavy duty. The standard (and smallest) connection available when we built our house was 3 x 100A.

Power is not the problem but connecting the CT clamps to the main feed is, assuming I locate the Zappi where I now want to locate it. I could look at extending the sensing cable (telephone wire) I laid but an underground joint doesn't fill me with confidence. Hence the query about the newer version of the Zappi and the apparent discontinuation of the hub. Or does the Harvi replace the Hub for this application? I find the myenerngi website a bit sparse on detail to be honest.

Metalpanic

Hypervolt are having connection issues to their chargers the last couple of days. A new version of their app has been pushed (4.2.2) that solves the issue for some, but not all (me included grrr). Just thought it worth mentioning here in case people thought it was an issue with their own charge points.

micks_address

https://www.boards.ie/discussion/comment/120326642#Comment_120326642

The hub function is built into the latest version of zappi. The harvi will allow remote CT clamp monitoring. Not sure of its max distance.

murphaph

https://www.boards.ie/discussion/comment/120333475#Comment_120333475

Brilliant. The distance from the clamps to the Zappi is not great, maybe 10 metres, but the data cables are just a bit too short. I prefer a wireless solution using the harvi than extending the cables with a buried joint.

...Ghost...

https://www.boards.ie/discussion/comment/120333456#Comment_120333456

I don't really use the APP, but updated it when I saw the email. No issue connecting as I just checked with the LED modes and it's all good. If you are still having an issue, get in touch with them. I found their CS to be great when I had trouble using a type2-type1 adapter for the Leaf. Turns out the "random/delay start" function was switched on which they were able to tell me remotely.