Upon installation of an ATS,and generator the local inspector found deficiencies of the installation. First some background info, this is a residential application and is an optional standby system. The existing service is single phase 600 amp. Three conduits lead from the metercan to mainbreaker panelboards in the upstairs laundry. The mains are grouped here.
I broke into the conduit outside feeding the panel the genset would supply during an outage. I installed a j-box and piped over to the ATS. The ATS has a breaker factory installed in it. The utility power is connected to this breaker.the gen set is connected via a whip, and the load side of the ATS feeds the panelboard upstairs,very simple. Here are the issues the inspector cited. #1 mains are no longer grouped,#2 j-box and pipe can't share both sets of conductors,#3panelboard in laundry is now a subpanel and grounds and neutrals must be seperated.My questions are should the breaker in the ATS be considered a main,the ATS could have been ordered without this breaker.If it is what about 230.72b? If it isnt a main then the panelboard grounds and neutrals wont have to be seperated,and the conduit sharing both sets of conductors shouldnt matter.Another thing is that if you open the breaker in the ATS the genset starts and transfers power to that panel, so how can you consider it a main.The inspector wants a 600 amp disconnect installed and panels to be treated as subs, and ground conductors pulled to these panels.
thank you for your thoughts and time