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Old 08-05-2013, 10:13 PM   #1
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Mini split AC 120 or 240 - lsu181hsv model


I bought a mini split like 4 month ago and by that time I did my research, so I bought 30 amp breaker, 10 gauge wire and 30 amp 240 disconnect. Since was a long I go I don't remember if this is a 120 volt or 240. Base on my 30amp single pole breaker, it is 120 but going by my disconnect, it is 240. Base on my picture and the spec can I use the mini split on 120? And can I use the 30amp 240 volt disconnect even thought the circuit breaker is 120? Thanks in advance.
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Old 08-05-2013, 10:51 PM   #2
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Mini split AC 120 or 240 - lsu181hsv model


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Originally Posted by amb1s1 View Post
I bought a mini split like 4 month ago and by that time I did my research, so I bought 30 amp breaker, 10 gauge wire and 30 amp 240 disconnect. Since was a long I go I don't remember if this is a 120 volt or 240. Base on my 30amp single pole breaker, it is 120 but going by my disconnect, it is 240. Base on my picture and the spec can I use the mini split on 120? And can I use the 30amp 240 volt disconnect even thought the circuit breaker is 120? Thanks in advance.
It's a bit hard to be certain because the glare in the picture is just were
the important part of the info is on the spec plate.
But I can see a 2 clearly, So I am guessing it is a 240v system.
After doing a google on the model number it confirms it is a 230 - 208v system.
No good for 120v.

30 A breaker would be fine !
With a 20A breaker you will probably get the odd occasional nuisance trip,
Best use a 30A.

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Old 08-05-2013, 11:07 PM   #3
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Mini split AC 120 or 240 - lsu181hsv model


So I need dual pole 30amp break? I have a single pole 30 amp, but I guess I need to use two so I can have two cables plug into 120v. I also saw on the power supply connection L1 and L2.
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Old 08-05-2013, 11:07 PM   #4
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Mini split AC 120 or 240 - lsu181hsv model


Thanks I appreciate your fast reply.
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Old 08-05-2013, 11:20 PM   #5
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Mini split AC 120 or 240 - lsu181hsv model


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Originally Posted by amb1s1 View Post
So I need dual pole 30amp break? I have a single pole 30 amp, but I guess I need to use two so I can have two cables plug into 120v. I also saw on the power supply connection L1 and L2.
Yes you need a double pole breaker !
You cannot use two singles,
as they need to be joined.
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Old 08-06-2013, 05:01 AM   #6
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Mini split AC 120 or 240 - lsu181hsv model


20 amp min ... 14/2 .... yes 14/2 ...



or 30 amp max 12/2 ... yes 12/2

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