This past week I have noticed a trend when inspecting Air Conditioning units. Most electrical contractors will wire per plan and not by nameplate. When missing the nameplate information we violate 110.3(B) installation and use. The following is a view of what information is on the nameplate and how it is calculated, remember that the information on the nameplate is how unit is to be wired.
Hope this helps and reduces your correction notices.
Till next time be safe work safe and Happy Holidays
Jlecc