40 Amp service enough for 5 ton condenser?

[phosgene]

question, (still learning) if max is 60 and MCA is 38, can you not multiply 38 * 125% = 47.5 and go with a 50 amp breaker if such is available (i don't think they are)

[rsmith46]

Originally posted by phosgene
question, (still learning) if max is 60 and MCA is 38, can you not multiply 38 * 125% = 47.5 and go with a 50 amp breaker if such is available (i don't think they are)

You can use a 40 50 or 60 Amp breaker, whatever holds without tripping. Your wiring just has to be rated for at least 38 amps. Your wire needs to be at least #8 copper.

Fas Eddy; If the load calc says 4.6 tons you put in a 4 ton unless the old 4 ton compressor has lost capacity and then you would put in the 5 ton?