central a/c unit electrical questions


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Old 08-31-18, 03:57 PM
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central a/c unit electrical questions

So long story short, I had an electrician tell me that my central a/c disconnects were not adequate and wanted to change everything out. I have two central a/c units for dual zone in the house, hooked up to a single (what appears to be a) non-fused disconnect breaker switch box with two switches, that then leads to the main breaker in the garage. Garage wire/fuse/breaker is 60 amps, each a/c unit is rated up to 30 amps, the two switches are 30 amps and 40 amps.

He wants to rip everything out, run a new a/c unit breaker box, and attach individual fused disconnects to each unit. Is this worth the trouble (and worth the cost)? Or is the system as set up currently sufficient enough?

I can understand wanting to replace the 40 amp breaker switch with a 30 amp one, that makes sense to me. The rest of the work of changing everything over doesn't.

Pics of the current setup in case I did not explain this well. Really I am looking for verification that the way it is set up is good to go as is (other than the 40 amp switch should be a 30 amp).

What do you all think? Thanks in advance.
 
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Old 08-31-18, 04:07 PM
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hooked up to a single (what appears to be a) non-fused disconnect breaker switch box with two switches
No..... that is set up as a two circuit sub panel. Those look to be actual breakers. Non fused would have no amperage listed on the handle. That looks to be a 60A panel so the 60A main breaker is ok. I see no reason that the two units can't be connected there. By definition that is a disconnect means and it is within sight of the units. Change the 40A to a 30A if that's what the new unit requires.
 
 

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