Martinthefizzío Posted August 10 Share Posted August 10 I have a Sunsynk 8k ECCO inverter I have friends who also have Sunsynk ECCO inverters (1 also has an 8k the other a 3.6k) We all have the latest firmware but all have the same issue: When there is no physical loads attached to the "Load", "Essential loads", "UPS" (or whatever else Sunsynk might refer to it as!) terminals on the inverter the inverter's "live" power flow diagram shows Watts being used by these terminals? In the case of the two 8k inverters they don't even show the same Watt figure. Mine is around 100W whilst the other is reading 370W! The 3.6k inverter reads about 70. These values do change though dependent on what the inverter is doing and can sometimes be really high 3697W recorded on one occasion! and can be negative. When I put my 10W load (my roller blind garage door controller) on the "Load" circuit, or indeed slap a 2kW heater load on it it does show those loads correctly but there is also this arbitrary ”Other" +ve/-ve load added to it!? This readout makes no sense at all to me and I can't find anyone else mentioning it on a forum... Am I (are we) missing something here? The attached pic is from the 3.6kW inverter (no loads in circuit on the "Load" terminals) showing a massive amount of Watts purportedly being used by an open circuit??? Quote Link to comment Share on other sites More sharing options...
Scorp007 Posted August 10 Share Posted August 10 3 hours ago, Martinthefizzío said: I have a Sunsynk 8k ECCO inverter I have friends who also have Sunsynk ECCO inverters (1 also has an 8k the other a 3.6k) We all have the latest firmware but all have the same issue: When there is no physical loads attached to the "Load", "Essential loads", "UPS" (or whatever else Sunsynk might refer to it as!) terminals on the inverter the inverter's "live" power flow diagram shows Watts being used by these terminals? In the case of the two 8k inverters they don't even show the same Watt figure. Mine is around 100W whilst the other is reading 370W! The 3.6k inverter reads about 70. These values do change though dependent on what the inverter is doing and can sometimes be really high 3697W recorded on one occasion! and can be negative. When I put my 10W load (my roller blind garage door controller) on the "Load" circuit, or indeed slap a 2kW heater load on it it does show those loads correctly but there is also this arbitrary ”Other" +ve/-ve load added to it!? This readout makes no sense at all to me and I can't find anyone else mentioning it on a forum... Am I (are we) missing something here? The attached pic is from the 3.6kW inverter (no loads in circuit on the "Load" terminals) showing a massive amount of Watts purportedly being used by an open circuit??? As you said the loads on Aux and UPS of over 6000W and only 4000W from the inverter makes no sense. Even more so coming from a 3.6kW inverter. Quote Link to comment Share on other sites More sharing options...
Martinthefizzío Posted August 11 Author Share Posted August 11 Actually, (my 3.6kW) friend said that he does have an immersion heater (geyser) wired to his Aux output and has the inverter setup to supply excess solar to this. The screenshot shown above is actually when the inverter was supplying power to his 3kW water heater, supplying Home (non essential) loads and exporting the remainder of the solar to the grid. Still doesn't explain why the UPS output is showing 3697W... Has anyone else noticed these discrepancies before and have a simple explanation for them? I've tried Sunsynk Connect "tech support" via their in-app chat but just got recommended to go back to my installer and ask them. Quote Link to comment Share on other sites More sharing options...
macafrican Posted August 11 Share Posted August 11 256Vac also looks suspect. I have a very large different technology and the data does not always tie up so that even measured over example a week, grid export = Solar + Recharge - Discharge - Loads = Grid. But mine are small % difference not your range. TaliaB 1 Quote Link to comment Share on other sites More sharing options...
Scorp007 Posted August 11 Share Posted August 11 (edited) 7 hours ago, Martinthefizzío said: Actually, (my 3.6kW) friend said that he does have an immersion heater (geyser) wired to his Aux output and has the inverter setup to supply excess solar to this. The screenshot shown above is actually when the inverter was supplying power to his 3kW water heater, supplying Home (non essential) loads and exporting the remainder of the solar to the grid. Still doesn't explain why the UPS output is showing 3697W... Has anyone else noticed these discrepancies before and have a simple explanation for them? I've tried Sunsynk Connect "tech support" via their in-app chat but just got recommended to go back to my installer and ask them. As far as the 3.6kw goes. With input of 4.4kw PV and nothing from the battery it still cannot supply 3kw to the Aux with geyser on and over 3kw to the UPS and on top of it export 500W. Edited August 11 by Scorp007 TaliaB 1 Quote Link to comment Share on other sites More sharing options...
TaliaB Posted August 11 Share Posted August 11 On 2024/08/10 at 11:03 AM, Martinthefizzío said: showing a massive amount of Watts purportedly being used by an open circuit??? Are you positive the load on the ups( essential) is actually 0W. Switch the output breaker to the essential loads off then see if the 341w is still displayed. I agree with @Scorp007 that flow chart does not seem realistic for a 3.6kw inverter and the 256vac does look suspect suggested by @macafrican what is the utility input voltage? Scorp007 1 Quote Link to comment Share on other sites More sharing options...
TimCam Posted August 11 Share Posted August 11 Have all these inverter given the same strange readings from first day of installation, or is this a new problem? AC voltage is high, but in my area in KZN, it is not unusual to go as high as 262V. Quote Link to comment Share on other sites More sharing options...
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