Unusual installation

[bones1]

Interesting. I am at the point in the installation where I need your guys' help. I have the same breaker panel that Will uses in his video install and I have removed both bonding screws in the inverters as well. picture below. I notice that he has the green bonding screw installed and the grounds and neutrals tied together and his is not going to another panel or xfer switch, just outlets I believe. My setup is going out to a Generac panel with a built-in xfer switch, previously used for a generator.I have 2 hots and a neutral and ground going over to the xfer switch as it was wired for the generator at one time. Should I keep the small panel wired as is with the bonding screw and grounds and neutrals connected together or separate them and/ or remove the green bonding screw? From this panel, it goes to the large 200A home panel which has a built-in xfer switch. A link to the xfer switch panel, I don't think it's switching neutrals
https://www.electricgeneratorsdirect.com/manuals/5449manual.pdf

 

[bones1]

No takers

 

[400bird]

It looks like you have neutrals and grounds in the same bus bar in the pic. That is functioning as a neutral/ground bond.

You should only have one N/G bond in the house and that is normally in the main panel.

Edit: also why have a main breaker on the sub panel if you aren't going to use it?

 

[bones1]

So, separate the neutrals and grounds in the pictured panel. BTW, this is my panel. Will didn't use the main breaker in his setup, the smaller pic above so I didn't either. Maybe I should. The 60A breaker on the right go to the xfer switch in the main home panel, which is bonded service. Both internal inverter bonding screws are removed. I believe I have it wired so I can feed the transfer switch by inverters or generator. I wouldn't know how to do that using the 100A main but am open to suggestions. Thanks for looking.

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[400bird]

The ground bus in your panel is the thing on the top left with the bare aluminum wire.

Does your transfer switch or inverter do anything with the neutral/ground bond? Some inverters connect neutral and ground when off grid. Some transfer switched open just the to lines, some move the neutral/ground too.

 

[bones1]

I am 99 percent sure that the neutrals and grounds are not switched by the xfer switch. edit 100%.

 

[bones1]

Found a manual for it https://www.electricgeneratorsdirect.com/manuals/5449manual.pdf

 

[bones1]

 

[bones1]

 

[bones1]

So, separate the grounds and neutrals in my small panel?.

 

[400bird]

The grounds and neutrals should only be connected in one place. I don't remember the exact wording. It's either in your main panel or in your service entrance, which may be the same component for some.

 

[bones1]

Yes, they are connected in the main house 200 amp panel so I think I'll separate them in the small panel near the inverters.