RudieB

Guys, I have been using Solar Assistant since early 2020 just before the dreaded big-C hit us. Check out their web page at : https://solar-assistant.io/. I'm not affiliated with them in any way, this is just a better solution for what's out there. Many different systems are natively supported. I used the same RP model 3 which I previously used for ICM. There is allot of features, dashboards and more. You can also integrate into Home Assistant with MQTT. You can even control your inverter from the App and it supports load shedding schedules to ensure your batteries are at the level you require before load shedding hits. I don't use my Sunsynk inverter's native app as it does not give me as much control and overview as Solar Assistant does and Solar Assistant is almost real time, maybe 3-5 seconds behind what is actually happening with your system. This is just may way of thanking the team for a great product. Hope it will assist you all. Regards,

In the original post it was said that this setup has seven batteries installed.

haha, oh geez, i skim read it and glanced right over the "seven" batteries. I was looking for a 7
Sorry for that 😂

Your 8kW Sunsynk inverter is capable of charging and discharging up to 190A to and from the batteries at approx 48V. Your batteries should be able to handle that, since the bank can charge/discharge 7x37A = 259A.
Your bottleneck will be in the inverter. If you want to avoid running the inverter at its limit when charging from grid or discharging batteries, you could limit the charge/discharge rate to let's say for example 160A.
Note, though, that with (24x320=7680)W of solar panels attached, your available charging capacity from solar will never exceed 160A, and most of the time it will be  lower as the seasons and days change. It's only with grid charge that you could get close to the inverter's limit.
All subject to the implicit assumption that your wiring and protective devices support this current.
This comment is not related to the PV input Voltage to the MPPT, but to the charger's output Voltage to the batteries.
 

Okay cool, so checking google quick we have;
JA Solar 320W Poly 5BB Solar Panel - Assuming this one for the sake of the checks
Weight: 22.4kg
Depth: 40mm
VMPP: 37.28V
IMPP: 8.58A
Voc: 46.12V
 
3 strings would be 8 panels in series each
this gives: String voltage of 46.12v x 8 = 368.96v (within the MPPT input range)
String amps would be 8.58A each string.
But the three would be in series parallel, just not sure if they would all be on one MPPT or not.
Giving 25.74A (I need to leave this comment Im making to be confirmed).
But that 25.74A (is with in the online 26Amps limit from sunsynk) but if this was lowered in the firmware to 22 or 20A we just need to confirm that this is not too high that the inverter clips down 
 
This is assuming 3 strings are all parallel on one mppt, but they could be split 2 and 1.
 
Something i didnt ask before, is the sytstem all installed, and you are checking. or planning ahead.
If installed could you take a pic of the menu, showing the schematic (like the below)
 
My understanding is you should be fine, but lets get a second opinion, from those more informed than me
 

Hi @Youda and @Jaco de Jongh,
 
Thank you for the feedback.  @Youda I have confirmed with regards to your point 3 made above. I have turned of the slave inverter (which is the one running at full / over capacity) and the power stays on. The Master unit then takes over seamlessly. As soon as I turn on the Slave unit, it reverts back to the previous state where it can audibly heard working harder and produces more much more AC output than the Master unit.
Please refer to the pictures of the installation. 
I further note that the firmware is on v1. Could this make a difference and if so, where do I get new firmware?