OK, what's the data on the AC nameplate?
Min circ amps? (30.2)
Max OCP??

Unit nameplate data governs the MOCP.

Yes, IF you need 35 amp fuses, then a 60 amp FD is req.

Refer to the "*" under 310.16 to go to 240.4

As to the 'plans', time to request a change order and pull in #8 & change the disco.

John


John