Replacing mini-splits electrical question

[1776]

OK, I’ve got two old mini splits I’m looking at replacing. The ones I have are 220v, but it seems like most of the newer ones in the BTU range I need are 110. The breakers for the circuit are just standard 15A breakers with the handles tied. Near each mini split there’s a fuse box like this

Am I completely ****ing retarded or could I run the 110V units by just capping off one of the hot leads in this box and using the other?

 

[Ruger34]

You can turn the red hot wire into a white neutral wire and call it a day, just wrap some white electrical tape around each end and move it from the breaker to the neutral bar in your panel

 

[cskiles]

E

You can turn the red hot wire into a white neutral wire and call it a day, just wrap some white electrical tape around each end and move it from the breaker to the neutral bar in your panel

Exactly this!

 

[CTS Tactical]

The box pictured is a service disconnect. Not a fuse box.

 

[OttoMan]

OK, I’ve got two old mini splits I’m looking at replacing. The ones I have are 220v, but it seems like most of the newer ones in the BTU range I need are 110. The breakers for the circuit are just standard 15A breakers with the handles tied. Near each mini split there’s a fuse box like this
View attachment 9798167
Am I completely ****ing retarded or could I run the 110V units by just capping off one of the hot leads in this box and using the other?

I always say: You've got to have the right tools to do anything!
Where is your multimeter?
And why are you changing this disconnect box? As CTS Tactical said, that box is just to cut power off to the heat-pump so the tech can service it!
New Mini-Split will need also a communicating wire from the head to the heat-pump (compressor unit).

 

[LARGO9]

Hire someone that know what there doing 👍

 

[1776]

Hire someone that know what there doing 👍

Ahem “Hire someone who knows what they’re doing.”

I, too, can be pedantic and unhelpful.

 

[1776]

I always say: You've got to have the right tools to do anything!
Where is your multimeter?
And why are you changing this disconnect box? As CTS Tactical said, that box is just to cut power off to the heat-pump so the tech can service it!
New Mini-Split will need also a communicating wire from the head to the heat-pump (compressor unit).

Not even close to the multimeter step of this project; I’m just trying to figure out if I need to relegate my purchase to a 220v system or if I can make a 110v work.

There is, indeed, a wired running from the heat pump to the air handler; I’m not sure why that’s relevant to the query I presented.

 

[1776]

You can turn the red hot wire into a white neutral wire and call it a day, just wrap some white electrical tape around each end and move it from the breaker to the neutral bar in your panel

Thanks. This was helpful. Unfortunately, I have no red wire…

 

[cskiles]

Thanks. This was helpful. Unfortunately, I have no red wire…View attachment 9803034

You have two phase wires that are both black (120vac each) instead of one being red. You can definitely install the 120v minisplit with the voltage you have in the disconnect. You already have a neutral in the box (it appears, but would need to be verified with a multimeter). You could remove one of the phase wires (black 120vac) put a wire nut on it, and carry the neutral straight to the condenser or break it with the disconnect in place of the phase wire that you removed.