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Old 04-12-2016, 09:25 PM   #11
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Originally Posted by Robin97396 View Post
I've seen people mount them as you described. Apparently that configuration works quite well and obviously would be relatively easy to hook up because of the proximity of the two units.

This is a rookie question about these mini split systems. They are actually heat pumps, and heat pumps not only make AC but also make heat in the winter?
they will until it gets really cold.. a heat pump is an air-conditioner "backwards".. just like in summer your A/C blows cold inside and hot outside.. turn it to heat and it reverses the process...

the caveat is the colder it gets outside the less efficient a heat pump is.. most people that live north of orlando or so (or anywhere not on the west coast) will have a secondary source of heat.. ie electric coils or gas furnace.. if you are running your bus engine obviously you have great source of heat.. if you are on shore power you could get some heat from the mini split without using your propane.. (ie if the campground has electricity included.. you run your heatpump as long as you possibly can so you dont waste your propane.. but you will still want a furnace of some sort for those really cold nights..)...

I have run my ducted inverter splits (my home system is based on them) down to 0f outside but they struggle.. get noisy and use lots of power to push out minimal hot air... since I have natural gas main heat and gas is CHeaper than electricity I dont use the heat pumps much here at home..

-Christopher

P.S. if you install a mini split with less than 15 feet of refrigerant lines you must adjust the amount of refrigerant down to match the line lengths...
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Old 04-12-2016, 09:26 PM   #12
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Originally Posted by Robin97396 View Post
I've seen people mount them as you described. Apparently that configuration works quite well and obviously would be relatively easy to hook up because of the proximity of the two units.

This is a rookie question about these mini split systems. They are actually heat pumps, and heat pumps not only make AC but also make heat in the winter?
I'll have to get the tape out to see if it'll fit properly before deciding. They do seem to offer some heating as well, but i doubt they'd keep us warm against a Canadian winter. The other bonus if they seem to have a soft start which is the biggest hurdle for low power options like mine.
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Old 04-12-2016, 09:28 PM   #13
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I have inverter mini splits that can run off my inverter. I can run both on one 15 A circuit on cool. On start up one draws about 2A very slowly increasing to about 7A.
Can i ask, how big is your inverter, battery bank and alternator is? Do you use them when you're on the road?
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Old 04-12-2016, 09:29 PM   #14
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if you are buying minisplits be sure you buy the type that say "DC Inverter" as they did make cheaper units which were standard hard start / stop compressors.. you want the inverters running R-410A refrigerant to get the soft-start and much better efficiency than the cheaper units..
-Christopher
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Old 04-12-2016, 09:31 PM   #15
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depending on your timeline for A/C I plan on ordering one of these for use while im working inside my bus on hot summer days.. I'll be able to measure its performance and power usage.. I wont be ready for a couple weeks though..
-Christopher
Thanks. That might help. I have sent the guy an email and if the BTU and power consumption range are anywhere near what he claims, it should work just fine. I'm in no rush to purchase, but i like to get my research done early.
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Old 04-12-2016, 09:35 PM   #16
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Originally Posted by cadillackid View Post
if you are buying minisplits be sure you buy the type that say "DC Inverter" as they did make cheaper units which were standard hard start / stop compressors.. you want the inverters running R-410A refrigerant to get the soft-start and much better efficiency than the cheaper units..
-Christopher
Great advice. I'd not even heard of inverter aircons before today. Thanks guys.
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Old 04-12-2016, 10:14 PM   #17
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I'd seen the inverter on some of the systems but didn't know what it meant.

Yeah, research phase here too. I'm looking to lean hard away from propane for heating purposes. I installed a wood stove but can't always use it depending on location.
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Old 04-12-2016, 11:37 PM   #18
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Can i ask, how big is your inverter, battery bank and alternator is? Do you use them when you're on the road?
I have a 3000 sine wave inverter, but have run one on a 1500 and yes I can run one while driving. Bus alternator is 180A, my battery bank is small so will only run 1 AC for about a half hour. My generator, not quite finished is 320A DC, so should run everything.
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Old 04-13-2016, 12:18 AM   #19
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I've been watching these guys - I bought a fridge from them. They released their AC unit just a little while ago.

EcoSolarCool Solar Air Conditioner Wall Mounted
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Old 04-13-2016, 07:53 AM   #20
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I've been watching these guys - I bought a fridge from them. They released their AC unit just a little while ago.

EcoSolarCool Solar Air Conditioner Wall Mounted

I need to read up more on how this works.. standard absorption cooling was done with heating the refrigerant.. however this appears different, though they dont state what refrigerant these use..

if nothing else the fact they take 12 volts as input voltage is an advantage as you dont have the Loss in the 12 to 120 Inverter like when using a standard mini split..

cool stuff!!

-Christopher
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