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#59957 - 12/19/05 07:21 PM Wiring a mini split
BigB Offline

Registered: 03/31/04
Posts: 725
Loc: Tucson, AZ USA
Has anyone wired for a mini split? I have to rough in for a 1 ton. I was wondering if the indoor unit is powered by the connecting cable that runs from the condensing unit to the blower or does it require a circuit of it's own? It is a GE unit.

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#59958 - 12/20/05 04:01 AM Re: Wiring a mini split
electure Offline


Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
The ones that I've wired...not GE... have taken a common supply circuit. As a matter of fact, they have had full voltage controls.
Your answer should be in the installation instructions.

#59959 - 12/20/05 04:23 AM Re: Wiring a mini split
Trumpy Offline


Registered: 07/05/02
Posts: 8532
Loc: SI,New Zealand
I've wired Carrier and various other brands.
As far as I'm aware (out on a limb here) A/C units use a 5 core cable between the Evaporator and the Condensor unit, size of wire 1.5mm2 in my language.
The load is usually only a fan motor and few control circuits at the Condensor end.
Allow 8 wires, I will say this.
Let's face it, these days if you're not young, you're old - Red Green grin

#59960 - 12/20/05 07:50 AM Re: Wiring a mini split
BobH Offline

Registered: 10/16/04
Posts: 134
Loc: Newfane, N.Y USA
As already stated here, best bet is to get a hold of the installation literature.

#59961 - 12/20/05 05:51 PM Re: Wiring a mini split
Electricmanscott Offline

Registered: 01/12/02
Posts: 1478
Loc: Holden, MA USA
I have wired a couple recently that were fed with a 15 amp 120v circuit to the outdoor condensor unit. The indoor fan unit was powered by 36v dc supplied from the outdoor unit via a 4 wire 18awg cable.


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