Originally Posted by rickyspeak
I don't want to sound like a dick picking a fight I'm just curious how you came to this answer. Do you have a citation or reference for that 225% number or is it just a standard that you like to use?
Just a rule of thumb I learned to use at work. You could figure out an axact number if you knew every motor parameter, but for the purpose we're talking about here, this is sufficient.
If you want, take a look at your house AC unit RLA (it should be on the unit on a sticker somwhere), and then look at the breaker size for it in your panel and use that ratio.