Mini Split Air Conditioner / Heat pump

Walkdog wrote:
I'm looking at Amps and dealing with battery. Mini split says say 10 amp. Is that 10 amh?

thats 10amps *120v which is 1200w

thats not going to work at 10amps battery power 120w-130w (10*12v)

your looking at amp numbers and not thinking about the voltage
volts*amps=power aka watts

and while if you spend enough money you can get a battery bank and inverter to run the a/c all night

you have to recharge it the next day, that usually means a generator
is involved
because, you want A/C during the day plus you have to put back all the power from the batteries you used last night, so you can use it again tonight

1200w for 8hr ? 9600watt hrs 9600/12v 800amphrs
your solar will have to produce the 9600 you used last night
plus 1200*16hr = 19,200 watt hrs for A/C during the day
total 28,800watt hrs, 28KwHrs during daylight hours

now if you mount enough solar say 800-1000w
you can perhaps power a 600w load directly from the solar during the day, no battery use

all bets are off for Night time use

i know one man that installed a 600w modified window unit in the roof of his 5vr bedroom, ran it from a big battery bank in the bed of his heavy duty tow, for about 4hrs a night
but he then ran the generator in the truck during the day to recharge the batteries

I guess time will tell with others that have 600-800 amp hour battery setup shall see if they use a minisplit. Simply put, if so let us know, if not then all good

Dangit, i'm not trying to sell anything but rather asking if Minisplit Air conditioner's save a lot more? That's it. And from what i'm reading on a 600 amp hour battery bank Lithium you should be able to run air all night long.

theoldwizard1 wrote:
Solar powered RV Air Conditioning

They where using OLD tech with OLD top load aircondioner? Right?

https://www.homedepot.com/p/DuctlessAire-Energy-Star-12-000-BTU-1-Ton-Ductless-Mini-Split-Air-Conditioner-and-Heat-Pump-Variable-Speed-Inverter-220V-60Hz-DA1221-H2/300696598

4amp it says i assume that is a hour. Of course the one i'm acctually looking at is aroud 10-15. 10amp hours is 16 hour day is 160 amp hours in a 16 hour period. Right? Am i wrong. If so please put me back into place. So i should be able to run at least my air and pc and a 32 inch with direct tv attached and what not for a good while

Segue - Frigidaire (now owned by Electrolux) make some 5,000-8,000 BTU window air conditioners that are very efficient. They only draw 7.5A, or less. Obviously they draw more during startup.

Walkdog wrote:
...apparently there isn't as in mini splits aren't used much here in the USA

True !

They work great and are cost effective in apartments (much more efficient than a PTAC) or smaller homes, <1000 sq ft.

For optimal performance, they require an air handler in almost every room ($$$). Although most mini-split pumps (the part that sits outside) can handle 2-4 air handlers, larger houses would need more. There is quite a bit of plumbing required for each air handler which is why they are typically mount on an exterior wall so all of that can be routed outside and the covered.

Big houses/buildings can actually have 2 pumps each with multiple air handlers. The air handlers can be slaved together to condition one large room or operate independently.

Besides being more efficient than tradition AC/heat pumps, another win is being able to only condition rooms that are occupied. No need to keep your bedrooms at 75F during the day when you know it can be quickly cooled down before going to bed.

We, sorry me..........talking stickly running a straight up TT with solar and totally off grid with air conditioner

not wanting to get into to dc, ac type thing........and convert this to that. blah. Thnx though.