Hi, all. Thanks in advance for the help. 
Customer is wanting to upgrade their service and I’ve come across this subpanel fed off a 2 pole 100 A breaker with #2 SER feeding panel containing all circuits for generator to be operated off manual Transfer switch.
Looking for some advice on tying this all back together and being code compliant. I usually just do a generator and ATS catching the entire house or a generator inlet receptacle. First time seeing this set up. Photos attached
		
		
	
	
		
	
		
	
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			Customer is wanting to upgrade their service and I’ve come across this subpanel fed off a 2 pole 100 A breaker with #2 SER feeding panel containing all circuits for generator to be operated off manual Transfer switch.
Looking for some advice on tying this all back together and being code compliant. I usually just do a generator and ATS catching the entire house or a generator inlet receptacle. First time seeing this set up. Photos attached
	
	Sent from my iPhone using Tapatalk
				