Prinolan

Got it thank you so much

Hi there i have a cbi astute device for a geyser at a flat i own in another city. My electrician setup the device and used his phone to setup the geyser as i am not based there. He shared the device with me on my cbi app. however when he deleted the app off his phone (as he doesnt need it) it deleted the device off my app and the geyser stopped working. He re setup the app now but how can he transfer the ownership and admin of the geyser to my app so he can delete it off his?

Hi just wanted to check something, re this pic above. so on the 8kw sunsynk how much over the 8 can you pull before it overloads and for how long can you run before it shutsdown?

Louis at Ltron Solar - 064 683 0035

Hi All Need some help with an issue. I have a MUST 5kw Hybrid Inverter (this is probably a Voltronic white labelled inverter) and its MPPT range is 64-130V, 9 x 375kw Fivestar solar panels connected with 3 strings (so 3 x 3), and 4 x 200ah Gel batteries. I noticed earlier this year (as i can monitor the system remotely via a wifi card setup) that randomly, the PV voltage spikes to between 125 and 131 volts. When this happens, the charge power from the PV drops to 150w odd and the charger current to 3A. This can happen randomly during the day and can sometimes stay at these levels for up to an hour or so and hence the load is not being fulfilled by the solar even though there is plenty of sunlight. Does anyone know how to resolve this issue? I understand the PV is going to the top of the MPPT range but how do i prevent it from doing this. It seems much worse now ie its happening more often than it was earlier in the year. Do i need to reconfigure the setup of my panels to a different combination to reduce the PV voltage etc or what do i do to maximise production without the voltage spiking and effectively killing the charge power? i am not super technical so would appreciate a layman response on this.

Hi All Need some help with an issue. I have a MUST 5kw Hybrid Inverter (this is probably a Voltronic white labelled inverter) and its MPPT range is 64-130V, 9 x 375kw Fivestar solar panels connected with 3 strings (so 3 x 3), and 4 x 200ah Gel batteries. I noticed earlier this year (as i can monitor the system remotely via a wifi card setup) that randomly, the PV voltage spikes to between 125 and 131 volts. When this happens, the charge power from the PV drops to 150w odd and the charger current to 3A. This can happen randomly during the day and can sometimes stay at these levels for up to an hour or so and hence the load is not being fulfilled by the solar even though there is plenty of sunlight. Does anyone know how to resolve this issue? I understand the PV is going to the top of the MPPT range but how do i prevent it from doing this. It seems much worse now ie its happening more often than it was earlier in the year. Do i need to reconfigure the setup of my panels to a different combination to reduce the PV voltage etc or what do i do to maximise production without the voltage spiking and effectively killing the charge power? i am not super technical so would appreciate a layman response on this.

Hi All Need some help with an issue. I have a MUST 5kw Hybrid Inverter (this is probably a Voltronic white labelled inverter) and its MPPT range is 64-130V, 9 x 375kw Fivestar solar panels connected with 3 strings (so 3 x 3), and 4 x 200ah Gel batteries. I noticed earlier this year (as i can monitor the system remotely via a wifi card setup) that randomly, the PV voltage spikes to between 125 and 131 volts. When this happens, the charge power from the PV drops to 150w odd and the charger current to 3A. This can happen randomly during the day and can sometimes stay at these levels for up to an hour or so and hence the load is not being fulfilled by the solar even though there is plenty of sunlight. Does anyone know how to resolve this issue? I understand the PV is going to the top of the MPPT range but how do i prevent it from doing this. It seems much worse now ie its happening more often than it was earlier in the year. Do i need to reconfigure the setup of my panels to a different combination to reduce the PV voltage etc or what do i do to maximise production without the voltage spiking and effectively killing the charge power? i am not super technical so would appreciate a layman response on this.

how would i add extra cooling? and no dont think there is a way to monitor the temp of the inverter i hear the fans going when the sun is out i can go listen to it when it gets very hot but its amazing that it does it so infrequently

i have seen on this forum discussion about others having similar issues of PV drop and most attribute it to an issue with the MPPT which or battery which is the issue but was just trying to get an opinion as most are using Lithium batteries whereas i have gel which may be very different in the way they charge etc. so looking for best solution re bulk and floating charge rates currently my bulk is at 56.4v and floating at 54v - its default on my inverter should i reduce this perhaps and if so are there any risks in doing that? really i am trying to figure out why the charge power is dropping to 150w and 3A if the sun is out and the batteries arent close to float - is the mppt faulty bear in mind its very adhoc and doesnt happen frequently at all - maybe 1 x 15min period during the day - although on the first day it was frequent and it goes back to normal again without me having to do anything but still a concern for me

ok but normally it runs at around 119-122V but with this change in charge current where it drops to ~3A and 150w the voltage is spiking to the 125 or higher sometimes that drop to 3A occurs even when PV voltage is below 120V - and other times even when Voltage is higher than 125V the charge power is still good ie about 600w etc initially had only 8 panels and voltage was sitting at 80-90 but sometimes dropped to 60 which meant the MPPT switched off. Added a 9th panel to then connect 3 x 3 and voltage picked up to ~120V (normally hovers around 119) and system seems to operate well at that rate dont understand why all of a sudden its giving this issue when it worked perfectly for the first month could it be a battery issue?

Morning I have read through this forum and am having a similar challenge with my PV I have a 5kw Must Hybrid Inverter with built in MPPT. 9 x 365w panels (connected 3 in series x 3 rows). And 4 x 200ah gel batteries. My system works on a load matching basis for the solar during the day and at night draws from the batteries but keeps the batteries at 50.0V in case of load shedding. Normally the PV voltage ramps up to around 120V and charge power ranges anywhere from 500w to 3,500w depending on the load needs. It’s been working well since i installed (a month ago) however from 2 days ago i noticed on the monitoring system that (while the sun is out and sky clear) the PV voltage spikes to higher levels ie around 125V or above and the charge power drops to around 150w and the charger current drops to 2.9-3.1a - this happens for a period ranging from 15mins to 1.5hrs - the first day was 1.5hrs at one go (from 7.15-8.45am) and then 10-15min periods three times after and then day 2 15mins and yesterday 15mins both around 2pm Any ideas? should i change my bulk and float rates for my battery it only started behaving like this after the heavy rain and storms on the weekend but i cant imagine thats changed anything as it works like normal for most of the day except for these short periods when i see the dips PV table1.bmp PV graph1.bmp