Even still more generator questions

[rnatalie]

If this is a "whole house" system and the ATS is ahead of the "main" panel, your service disconnect is likely going to be a switch ahead of all of that. This means that you will keep the ground and neutral conductors separate after that disconnect (your main is hence treated as a "sub" with regard to ground/neutrals). I've seen experienced guys miss that one.

 

[LarryFine]

If this is a "whole house" system and the ATS is ahead of the "main" panel, your service disconnect is likely going to be a switch ahead of all of that. This means that you will keep the ground and neutral conductors separate after that disconnect (your main is hence treated as a "sub" with regard to ground/neutrals). I've seen experienced guys miss that one.

I installed this ATS in place of an exterior main disco, so the neutral/EGC separation was already done, and the GECs already landed in the exterior main.

Yes, I've installed many ATSs and never missed the need for the 4-wire feeder.