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Arandoza

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Arandoza last won the day on March 14 2018

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    Centurion
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    Smart home control - Sonof - tech :)

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  1. Greetings all, Today I went thru to the offices of preston systems as per their website, (Below), to try and make a purchase. New Road Office Park, 5 New Rd, Glen Austin AH, Midrand, 1685 Tel: 011 504 2250 [email protected] www.prestonsystem.co.za However when I arrived and security asked whom i was their to see, they advised that Prestonsystems.co.za appears to be a scam as they are not tenants at th
  2. We implemented 3 systems and have been pleased with the results 1. Backup water Municipal water with 1890l storage, pumped to taps for basins, showers, geyser, kitchen and washing machine, with a bypass option if no power or pump fails. 2. 1000l Grey water temporary storage tank, with pump which runs off PV or mains depending on weather / time of day we run it purely used to irrigate the garden. 3. 2 x 5000l and 2 x 1890 l tanks for rain water, used purely for flushing toilets running off a 3-400watt pump which runs off PV or mains depending on time of day used. Also ha
  3. Folks are also taking the easy option and plugging in these types of globes with battery backup. Not sure how well they work though? https://www.google.co.za/search?source=hp&ei=GiFiX8fRFaO3gwft6bL4CQ&q=light+bulbs+with+backup+battery&oq=light+bulbs+with+back&gs_lcp=CgZwc3ktYWIQARgAMgIIADIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeMggIABAWEAoQHjIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeOggIABCxAxCDAToFCAAQsQNQwzVY8V5g9XhoAHAAeACAAecCiAHEK5IBBjItMjAuMZgBAKABAaoBB2d3cy13aXo&sclient=psy-ab#spf=1600266536310
  4. The key thing with geysers is to be sure they cannot overheat and create super-heated steam and then explode. The Two safety's to prevent this are usually the Thermostat (mechanical type cutout) that wont allow the geyser to over heat, and the Pressure / temperature valve on the geyser outlet. With the geyser wise units they also have a mechanical cutout safety on the electronic temp sensor, as well as built inelectronic safety that will stop powering the element if there is no increase in water temp, within 1-2 hours. This prevents a faulty temp sensor / geyser overheat, and also stops
  5. Our dishwasher has two heating cycles of about 10mins each over the 1h56 minute cycle. It then draws around 3kw to heat For around 10mins per heating cycle , and wash. Lg dishwasher. I recently investigated a newer dishwasher and found that our 8 year old one is still pretty close to using around 1.2kwh and around 13 liters per wash. So the expensive dishwashers seem to get that down to around 1kwh and 6-8 liters per wash, so not worth the cost for gautengers, but if in the western cape may consider saving of 5 liters worth the R16k?? The lg automatic washing machine setup favori
  6. Arandoza

    Axpert problem

    Hi Dros, if the panels are in 3S4P configuration you could try to cover the 3rd panel of each string ? Effectively shading it completely. Until your installer could get to you? Not sure how practical this is? Good luck, hopefully the over voltage on the mppt hasn’t caused any damage? alternatively it maybe safer to simply isolate the array from the mppt altogether, to prevent any risk of damage.
  7. There are many models and variants of the AXPERT 5KVA, and as I recently found as well that models I had were not compatible with the newer versions on the market. I ended up having to buy three new units The communications cables were the same as far as the eye could see between the old and new versions. What makes and models of the axperts do you have ? check the nameplate on the side for the specs? Also both / all inverters must share the same battery bank. Also older units had a power factor of 0.9 and the newer ones I understand are now a power factor of 1.0 which can be one o
  8. Good Evening Arandoza

    Can you kindly inform me if the two RCT Axperts are still available as per powerforum classifieds

    I am also interested in the JA 275W solar panels

    Please PM for futher action to be taken

    Thanking you

    J.Nortje

  9. Also curious if they work with the Axpert’s?
  10. What application would one use with an axpert inverter to read the inverter values and post them? Do you have an app to do this yet?
  11. I am running 2.88 version from centurion solar, and all is ok. It included Emoncms on the pi, and could be setup to feed both a local and cloud instance of emoncms. If you have a look on the centurion solar and then on the iccsoftware websites one almost gets the impression there was a falling out? If I recall correctly the ICC site talks about advanced reporting only being supported if you buy a specific version of the pi version including the pi and hardware from ICC? And the version numbers of the software are 2.9x, where as the centurion solar ICC software just states there are no fur
  12. For the panels typically, 3 in series and 4 strings per array, per inverter. mppt VOC 145 v panel pmax 37.4v. X 3 = 112.2v just bear in mind to consider the pmax is at 25 deg c and in cold conditions the 112.2v will increase - refer to the spec sheet for the panels, if very cold and clear sky’s and pushing the inverter hard, it maybe possible that the panels per string get close to the 145voc of the mppt. Also a consideration maybe the discharge rate of the battery packs, each pack with 3 inverters that could potentially pull 12kva, will the packs be able to discha
  13. Agreed, Am also looking for a place to get the Solar Spanners - The Plastic ones The crimper Also has a large range of DIE sets available, as well, for ethernet, RG59, and other various electrical connectors etc. I was quite impressed and the Crimp on the 6mm seems to be HUGELY better than the ones I did previously with other General Crimpers. The only thing I would like to find is a Crimper DIE set that can handle 10mm Solar Cable? but have not found that so easy to find.
  14. @Dougiedanger Haven't seen a crimp free MC4 connector. Share a link? Used to manually try to crimp the MC4 connectors with general connector crimper and the results over time showed with MC4 Connectors melting and the Cable getting a white powdery coating on it for about 2-3 Inches near the MC4 connector, Evidence of the cable singe. Poor contact on electrical cables is definitely a fire risk, I have seen this with the MC4 connectors, and also at a previous company I worked for. Where one of the phases coming into the DB board, over time and due to heating and cooling, caused
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