I need to size my breaker in the MDP for an HVAC installation. There will be four ten ton split system units. Two on one floor and two on the floor above. the condensors will be roof top. 208/120 3phase is the system.
Now this is to be on the third and fourth floor. I am planning to run conduit up from the substation in the basement to a sub panel on the third floor to feed the new units. How do I calculate for my breaker size to the subpanel?
