I am busy adding a 2nd 5.5kw to a existing one. I am just getting as much info as possible as it is a remote of grid site.

currently aux input is used to drive a irrigation system between 100 % and 75 % battery.

Generator is on AC in.

As i see it from research.

1. Connect batteries ( 4 x 3.5 pylontechs ) to a common busbar and equal cables.

2. Connect generator to both AC in also equal cables.

3. AC output from both invertors connected into same AC OUT breaker.

4. Firmware must be the same ( get both invertors on of battery power and on wifi and do updates if needed )

5. Set one as master and one as slave.

6. bus number 0 , and 1. or 1 nd 2 ?

7. PV side is easy and not a problem.

8. I have paralleled quite a few Victron system but never a Sunsynk.

9. Keep the water pumps on the existing aux out.

 

i will really appreciate any help or advice not to waste clients down time.

 

 

Add a point to connect the comms cable between the 2 inverters.

Use each aux out for different loads. No not parallel.

Only the master has comms to the battery.

Should the Aux not be paralleled or can it be paralleled? 

When settings is changed on the master it also updates to the same settings on the slave, I assume it would be the same for the Aux settings? 

Does that mean you can (or must?) run 2 seperated Aux loads, one on each inverter, with the same rules? 

Or must the Aux load rather be paralleled, since it runs off a relay from the load side which is paralleled? 

Any insight is much appreciated!

1 hour ago, Bushbaby said:

Should the Aux not be paralleled or can it be paralleled? 

When settings is changed on the master it also updates to the same settings on the slave, I assume it would be the same for the Aux settings? 

Does that mean you can (or must?) run 2 seperated Aux loads, one on each inverter, with the same rules? 

Or must the Aux load rather be paralleled, since it runs off a relay from the load side which is paralleled? 

Any insight is much appreciated!

Refer to what is in the manual.