SolarNovice88

First I connected the geyser to AUX, in the morning when both conditions were met, soc and pv, the system would switch on, then if AUX switched off due to pv or soc dropping below the limits, so far so good, but then if the limits were re established, AUX will not switch on again for the day. Thinking the geyser not coming on for the second time on the same day was due to the thermostat, so I connected AUX to the pool pump and it would not worked as designed and could not get any clear answers from Keith Sunsynk.
 

Like all the other good people have advised, it all depends on your budget, and your loads you want to supply.
I have a SunSynk 8.8 kW inverter, so I'll try and explain it's setup, and it's  5.5 kW "brother".
 
First, your mains AC supply comes in from Eskom, through your MCB (Main Circuit Breaker) to your meter.
Just after your meter is the inverter CT (Current Transformer) coil, which is connected to the inverter, and measures the amount of power coming into or out of (Export) your house.
Now, between the CT coil and the inverter you can have Non-Essential loads wired like geysers, stoves, etc, which will not be powered by solar or battery if Eskom is Off.
Not withstanding @WannabeSolarSparky transfer switch method.
When Eskom is On, these loads can be "back-fed" by the inverter with excess solar / battery power, and save you on your Eskom bill. The Max you can "back-feed" to these Non-Essential loads is the rating of the inverter. On a SunSynk 8.8 kW this will be +- 8 kW, on a 5.5 kW it'll be +- 5 kW. If these loads require more power than the inverter can give, the power will be supplemented from Eskom through the MCB and your meter, up to the rating of your MCB. This is possible because the SunSynk is a bi-directional machine, which can take power in from Eskom, or push power back towards Eskom. Using the CT coil, the power can be stopped at the CT coil, (No Export) or even pushed back into the Eskom grid (Export), and supply your neighbors. 😂
 
Then the inverter has an output called UPS (Uninterruptible Power Supply), this is the Essential loads you want to always have power no-matter what Eskom does.
When Eskom is On, these loads will be fed by solar, battery, Eskom, depending on the "System Mode" Timer settings. Normally most people use the solar to charge the batteries, power the Essential loads, and if loads are high, draw some power from Eskom. The SunSynk 5.5 kW can power an Essential load of +- 8 kW by combining Solar / Battery and Eskom. The SunSynk 8.8 kW can power an Essential load of +- 12 kW by combining Solar / Battery and Eskom. If Eskom is Off, (load-shedding) the inverter will only be able to supply an Essential load equal to its rating, i.e. 5 kW or 8 kW.
After all this waffling, I have my entire house wired through the inverter, on the Essential load, as I wish to choose which loads are required during load-shedding or power failures.
Hope you soon join the power independent gang. 👍

If you let the inverter ON , it will come back to normal state after a while, no need to turn off power. And yes, I also disabled the annoying beep.

Before you make system setup changes, go to the page for System Settings --> Basic Settings, un-tick the "beep" box, and that way you should be the only one in the house to be freaked out when you create a fault. The system should come back in a minute once you correct the settings. Maybe put the buzzer back on when you're done.

Seeing as the showcases are low and slow start of 2022 I'll provide a little update. 
System has not missed a beat. Batteries are just floating currently incase of load shedding. Might switch back to draining them during peak time if the no load shedding situation continues. 
Have not fitted the extractor fan to the power room yet. Currently running a normal household fan pointing at the inverters bottom which then pushes a the hot air out the top. The difference between fan and no fan is probably around 40 degrees C on the heatsinks and the fan internal fan running and not running at all. So the 40 odd watt the standalone fan pulls is very good for thermal diffusion of the inverters heat. 
Need an additional 1000watt of PV to be able to run loads and charge batteries if I run off batteries during peak times but that will still happen in future. 
The solar system aside. No leaks in roof which I drilled 21 X 20mm holes into and sealed with AapKak. 
Inverter tripped once when we overloaded it by running airfryer, 3kw of crypto miners, dishwasher, kettle and all lights and accessories as normal. Oops but it reset and said AC Overload error but all good after that. Really using house as normal with eskom pass through on the 5kw sunsynk and only tripped it once. If there's load shedding our oven, stove top and out buildings go off so can still pull between 2 to 3kw during load shedding off the battery apart from the crypto miners. 
In hindsight though... The 13k difference between 5kw and 8ke sunsynk. I'd have gone for 8kw but really only for the enhanced pass through amps. Once my friend removes his crypto miners from my house the 5kw will be more than enough. 
That's it for the update. Hang ten everyone. 

Installation completed. COC received. Insurance updated etc. 😀
Constant draw on household is 2.9kw due to the crypto miners running 24/7
PV produces an average of 20kwh per day. I switched off the miners yesterday at 17h00. I then set the System timers to only make use of Gen and not Grid. At 06h00 this morning the SOC was 39%. That's 13 hours. So load shedding won't be an issue and without the miners the system is enough to be off grid in summer. Will see the winter generation still. 
Very happy with all the components I got.
Last thing on the to do is the neutral earth bond relay. I already have it just need to wire in. 
Finally working on an auto switch over for the two 535w panels connected to the Geyserwise MPPT. When the Geyserwise controller of 75degrees is reached and the circuit opens, the PV input needs to be directed to string 2 on the inverter. This could add an addition 2 to 3kwh generation per day depending at what time the geyser reaches temp. Could bring temp down to 65 degrees as well to switch over earlier. 
Thanks to all advise and kind words here on the forum. Much appreciated. 

Node red all the way. I have a separate node red instance running on my home assistant pi and do these types of automations there. 
HA is great for getting all the entities in one place, and node red ties seamlessly into it. HA automations suck. 

Hi Tariq.
If you watch the video. Keith is saying that there are users out there that are going beyond the max passthrough current of 50A and 35A which in turn are damaging the relays. 

Hello @JohanBrakpan and welcome!
This is set in the System Mode screen. Take a look at this (random) system mode screen as an example:

For the entry circled in Green, it tells the inverter that between 00H05 and 07H00, it must use 5500W of power to service essential loads from the battery until the battery SoC is at 30% (and then use Grid). The entry could also be interpreted as telling the inverter to use 5500W of PV to charge the battery (if there was PV available, but we know that no PV would be available at this time slot). For the entry circled in Red, it tells the inverter that between 11H30 and 12H30 it must use 5500W of PV to charge the battery to a 65% SoC, if the battery was lower than 65% SoC. If the the battery was over 65% SoC, then It could also be interpreted as telling the inverter to draw current from battery to supplement PV in order to service essential loads, until 65% SoC was reached. For the entry circled in Blue, it tells the inverter that between 17H00 and 18H30, if the battery is lower than 95% SoC then use 5500W of Generator power to charge the battery to 95%. Or, if the battery is higher than 95%, then use it to supplement PV to service essential loads  I hope that this helps. I have started a guide on the System Mode screen to assist people, here is version 1.2:
The inverter will use any source at its disposal to keep essentials, or "Load" alive, within constraints set regarding the battery in the System Mode screen, Work Mode 1 and 2 tabs; The whole System Mode screen revolves around the battery: The inverter will draw from, or charge battery to the desired SoC, at the desired time: from PV (or Grid, or Gen if ticked, and if both ticked, then in that order) drawing from the battery, or charging the battery at the rate (W) specified in the stated power level (but not at a rate higher than what the BMS allows); If Load Priority is ticked, it will use PV at the specified rate (W) to first service essential loads; and if any PV is left over, it will use the left-over PV to charge the battery (even if the battery SoC is higher than what is set); if PV is too little, or the rate (W) set too low to service essential loads, then it will draw what it needs from Grid / Gen / Battery <exact order to be confirmed> to supplement PV; If load priority is unticked: It will use all PV to charge battery, at the specified rate (W) (and will continue to charge past the desired SoC which is set on the timer) If Grid or Gen or both is ticked, it will use Grid or Gen (or if both ticked, then in that order) to achieve the desired SoC of the battery; If the desired SoC is achieved for the timeslot, unlike PV it will stop using Grid / Gen to charge the battery. It does not like to waste PV. Note that battery charge / discharge rates in the timer are overridden by the values in the Battery Setup screen, Batt Type, Batt Charge and Shut Down tabs.