Breaker and wire size for ductless mini split?

[natesc0tt]

installing this mini split:
CH-12MSPHCT-230VI

https://southminisplits.com/products/12-000-btu-230v-21-5-seer-ceiling-cassette-sophia-series-ductless-mini-split-heating-and-cooling-air-conditioner?variant=32187128512627

12000BTU
21.5 Seer
1 Ton
Max Fuse: 15A
it says, connecting wire: 16AWG/4
power supply wire: 14AWG/4
I would feel better with 12gauge and a 20A breaker instead of 14gauge/15A. I don't think that's overkill for an AC system even this is relatively smaller system.
thoughts?...

 

[david luchini]

installing this mini split:
CH-12MSPHCT-230VI

https://southminisplits.com/products/12-000-btu-230v-21-5-seer-ceiling-cassette-sophia-series-ductless-mini-split-heating-and-cooling-air-conditioner?variant=32187128512627

12000BTU
21.5 Seer
1 Ton
Max Fuse: 15A
it says, connecting wire: 16AWG/4
power supply wire: 14AWG/4
I would feel better with 12gauge and a 20A breaker instead of 14gauge/15A. I don't think that's overkill for an AC system even this is relatively smaller system.
thoughts?...

You can't provide 20A overcurrent protection if the maximum is listed as 15A.

No problem using 20gauge wiring.

 

[augie47]

You can't provide 20A overcurrent protection if the maximum is listed as 15A.

No problem using 20gauge wiring.

That would be phone cable

 

[James L]

That would be phone cable

Thermostat

 

[James L]

installing this mini split:
CH-12MSPHCT-230VI

https://southminisplits.com/products/12-000-btu-230v-21-5-seer-ceiling-cassette-sophia-series-ductless-mini-split-heating-and-cooling-air-conditioner?variant=32187128512627

12000BTU
21.5 Seer
1 Ton
Max Fuse: 15A
it says, connecting wire: 16AWG/4
power supply wire: 14AWG/4
I would feel better with 12gauge and a 20A breaker instead of 14gauge/15A. I don't think that's overkill for an AC system even this is relatively smaller system.
thoughts?...

The actual draw on a unit like that is about 7 amps. You would feel better putting a breaker on it that might not trip?

 

[david luchini]

That would be phone cable

Shouldn't type on my phone

 

[hbiss]

I suggest getting a professional to install this for you. They will know the proper wiring and breaker size.

-Hal

 

[augie47]

nates: So as not to confuse your situation, we were making light of david's typo for a #20 wire. The manufacturer requirement for a 15 amp fuse takes precedent so you must have a 15 amp fuse in the circuit. You can install a #14 or #12 wire (or larger)

 

[Dennis Alwon]

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