Tom Henry Calculations errors?

Ryan Ray

New User
Location
Washington
Occupation
Lead Maintenance Electrcian
Page 187 of Tom Henry's Calculations book states that if you omit AC as the smaller due to the heat being larger, you use the next largest motor as the largest motor to be increased 25%. 220.60 states that you still us the AC as the largest motor even if it's omitted due to heat being the larger load. Has anyone seen this in Tom Henry's book? Am I missing something?
 
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