viper_za

Eish, why so many engines

Haven't even touched my inverter since the last firmware update I did and that was 2 years ago and no it's not blue

It monitors the temp rise, if the geyser does not climb in temp while the element is on it will log a fault on the screen. For this error the geyserwise is configured to continue even in fault condition occurs (from the factory)

@Ridiq I don't see you using a BMV? If you don't have that you will never know when your batteries are truly fully charged. You cannot trust the SOC reading from the Axpert as it is only based on a voltage reading.

I don't have the same meter, but what I found is that mine does not work on all the plug circuits anymore like before I had my inverter. Maybe you can try different plug circuits.

@The Terrible Triplett Ag nee TTT jy moet eers lees wat Plonkster se man

Most people leave home early so having lots of morning power not as good as being able to use a little more solar when you get back after work

@PurePower Do the batteries connect to the inverter for any communication?

Seems like this needs the same treatment e-tolls get.

For your 300l it would be way too small

Remember to add the MPPT still probably looking at the 150/60 around another 8k x 3 for you then?

@maxomill http://powerforum.co.za/settings/signature/

Trek jou been. You have been against this way forever that's why

Been playing with the idea to add a prefeed geyser 50 liters with maybe a 500w or also a 1kw element to turn on once the main geyser is at max temp. Should also help out with some more hot water but the work required to install another geyser and redo a little bit of plumbing is keeping me away from this

@gabriel I have a bit of trickery getting mine to work like this. Timer for winter is set to heat from 9:00 to 15:00 and in summer from 8:00 to 16:00 but it's not as easy as that. I have mine connected to a relay that is controlled by the readings from my BMV and Inverter. On the BMV side it monitors the battery watts and voltages and inverter it checks to see what stage of charging I'm in to kind of predict excess power I should have available depending on voltage needed to maintain that stage. This seems to be working perfect in detecting clouds and not starting the geyser when they are still blocking the sun. Don't want to heat my water with my batts. This is still a work in progress in trying to find a better way to control when I hit the float stage as voltage change and reaching that voltage on a full battery does fool it even with clouds. PS Did not want to invest in some fancy light monitor Edit Normally water is heated at around 13:00 to the max the controller allows

So not true. Needed to heat my water with Eskom only 4 times this year rest all done with my PV.... Plus running my dishwasher of PV now isn't that nice Edit Realy would like to know how many days on avg does solar geysers not work at all?

Got a defy inverter type unit. On eco mode it heats 2 times. 15 minutes the first run and 10 the second one. Uses around 1800w on the heating phase. One thing I picked up the one day is it actually heated for n 3rd time, thought I had it on a different mode and left it at that. Then a month or two later noticed that 3rd spike again and remembered the rinse aid light was on and I did not fill it up. Turns out it detects that and does a kind of "steam" cycle to help the drying to prevent water marks when rinse aid is not available.

Not both but Axpert vs Eskom https://mybroadband.co.za/vb/showthread.php/808222-Axpert-MKS-5Kva-inverter-firmware-upgrade?styleid=42 Linked this somewhere before but cant find it now

@Chris Hobson @plonkster Just remember he is using a Axpert 3kva 24v plus - Mecer brand not the 48v so components I suspect won't be the same

Now this Paul is why I keep saying that a 12/24v bank is not cheaper than a 48v. If you use like your example on 62ah on 48v and then to move to a 24v system and use the same SOC you will need the same amount of batteries just in parallel to make up for it. Then we add Pheukert and you need even a little more (ah) on the lower voltage banks since they are discharging at a higher C rating You have the data so you know mos what you need out of a bank...

Maybe you should ask for a restore of your backups as I had this exact same debate with you before.....

Yes it's a PTC element. Geyserwise spec suggest a 15A max inrush current for the element. If you have some time would you be able to recommend a soft-starter to get and test it out. Would like to reduce that "spike" my bank needs to absorb each time this happens.

Will it be possible to apply this to a geyser element? Want to reduce the startup current on my element (1kw startup at around 3kw)

Yes this is true but it seems to me if you have it running at the limit of the charger the overshoot does not go that high indeed. This is the highest value I have recorded from the BMV's history. 1.1v I can live with and from what I have read up on the firmware after all the cap failures they have added an 60v (or 61v will check and make sure) where the PV will disconnect as soon as it reaches that

I will trust in what the manufacturer of the batts say This is key, add balancers and look after the things and you will be fine. And if my gravity readings go out of spec, I will use the changeover switch back to Eskom get myself a R1000 12/24v AC charger that can EQ batts and do them in sets. But for the last year no need so far