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I am installing a 27K BTU Mr Cool min split (install guide) that requires a disconnect/shutoff.

I want to make sure I am correctly wiring the disconnect, as I cannot find a wiring diagram for it and there are not good instructions with it. Here is the model I am using: https://www.homedepot.com/p/Square-D-QO-60-Amp-240-Volt-7-4-kW-Non-Fuse-AC-Disconnect-QO200TRCP-QO200TRCP/202353314.

Here is how I have it wired, followed by it with the shutoff, but no mini split whip installed yet.

  1. Am I sort of an idiot (or at least wasting time & money) and I do not need the neutral?
  2. I am assuming I will just wire the mini split whip to the shutoff switch in the second picture?

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r_alanb
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2 Answers2

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Both the mini split outdoor unit and the Square D AC disconnect don't provide a neutral connection. The circuit should be 240V. I suppose it can't hurt to have brought a neutral wire to the disconnect, but you should leave it unterminated at both ends (i.e., disconnected at both the disconnect and the panel) or remove the white wire altogether.

pericynthion
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RibaldEddie
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You are correct. The white neutral is not needed. And the whip connects to the two screws on the disconnect switch.

Keith
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