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-   -   mini split system new electric line from breaker (http://www.diychatroom.com/f17/mini-split-system-new-electric-line-breaker-81703/)

dawncass46 09-18-2010 09:22 AM

mini split system new electric line from breaker
 
installating a new mini split and running new electric line for 1.5 ton condenser can the wiring be 10/2?

nap 09-18-2010 10:28 AM

what does the unit list as max OCPD and minimum circuit ampacity?

That is what will determine what minimum size conductor you must use.

beenthere 09-18-2010 10:53 AM

Provided the run is less then 500 foot long, no problem with 10/2 with ground.

COLDIRON 09-18-2010 12:57 PM

Follow the installation information included with the mini.

I just installed a 12, 000 BTU the MAX circuit size was 15 with 14 wire.

That's what it stated.

beenthere 09-18-2010 01:04 PM

Quote:

Originally Posted by COLDIRON (Post 503318)
Follow the installation information included with the mini.

I just installed a 12, 000 BTU the MAX circuit size was 15 with 14 wire.

That's what it stated.

Thats the max breaker size. Nothing says you can't run a 10 gauge wire to it(well, the disconnect).

COLDIRON 09-18-2010 01:31 PM

I understand that you can do that it just seems a little outa sorts running 10ga on a 15 amp circuit.

I do follow your point. Of course it depends what's on the truck and how much time and distance you are from the supply house. yada yada yada.

Like building a mosque it's legal but should it be built.

beenthere 09-18-2010 01:35 PM

Lots cheaper running 10 gauge then driving an hour to go pick up 12 or 14 gauge.

I'll stay out of the political view.

COLDIRON 09-18-2010 04:14 PM

Thanks been I value your opinion. I also hate politics I guess that was a bad analogy. #10, 12 14 will do for me. as long as I got that 15 a protection.

beenthere 09-18-2010 04:49 PM

Sometimes. You think you got X foot of X gauge wire on your truck. Only to find out that your a few feet short if you try to use it.

If a supply house is 15 minutes away, not a big deal to go get the smaller size wire. If your an hour away. Ooops.
Then a larger gauge is less extra cost then the gas or time.

Other then that. It is a waste to use a gauge 2 sizes bigger then what the unit or length needs.


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