Solar Powered Air Conditioner and Heater for Off grid DIY System AC Mini Split

Stealing the power from Ra to run a mini split for heat and A/C.

12.000 BTU units are usually the largest 120V ones available. You can run a larger size but then you need a 240V inverter. This is about as cheap as you can go.

[AZ-vbzz]

Very interesting...so much less, $, then what other YouTube videos report. I'm finishing my desert cabin this year and need a similar system to stay cool in this West Texas heat.

[Neveragain-ry]

Sweet I'm off grid best decision ever

[vobtech]

Hello, I’d like your set up, very simple looking. I’m totally new in the subject and learning; can you tell how did you connect solar panels together? How many volts and amps coming to each solar charger?

[thelithiumpowerch]

I've seen some mini split units used less power on heating and cooling between 300-600 watts once they reach the set temperature does yours go down further than what you showed us ??

[neverlate]

Nice setup. I'm looking at installing a 12volt marine air conditioner and running it off my solar. I have one in my sailboat that keeps it cool on really hot days. I'm just trying to size up a good system to keep up with it and the 12volt freezer I'm installing in my shop. How long does it run off just a single battery, and do you have problem's getting the A/C compressor to kick in?

[wutanghaxr]

I'm interested in your setup? Trying to figure out my options. I already have a Daikin mini split installation at my house. It has 2 internal units and one external unit model: 2MXS24RMVJUA. Unfortunately it takes 240V ac input power. The label says "compressor motor 15.5A" so 3720W I guess. I'm assuming I'll need a 4000W+ setup to power it once I add in the power consumption of the internal units. I don't know how much power is used when it is run as a heat pump vs when it's run as an air conditioner. If I got 400W panels, how many do you think I'd need to be able to run this year round. I'm in southern CA, so generally pretty sunny year round. I'm considering a 120/240V split phase inverter to give me the option of potentially powering other 110V things as well but I'm still researchign and learning. Another question I have is, what happens when the cloud cover is such that the panels don't generate enough power. If the battery runs low will it just underpower the minisplit system or will it shut itself off? Is that bad for the minisplit system? I'm currently on the grid and am hoping to set up a DIY solar system that never feeds the grid. Is there a way that the minisplit system could automatically be switched back to grid power if my solar/battery system isn't providing enough power? Do you have any tips for me as a noob? Thanks!

[mikekendall]

One more question if I may.... On that one battery how long will it last you once the sun is down and you want some heat?.. thanks