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- MEXICOWANDERERExplorerGotta be careful with those numbers. My Goldstars have Freon 12. A buck/boost 1KVA emits about 30-40 watts thermal loss. A bit added on for flux emission. An integral is significantly more efficient than a split IME. I have 3 if Pianotuna's voltage correction boxes inline. The casita uses the Sola ferroresonant line-tamer. Curious the junker grade A/C units are significantly lighter in weight. Quicksilver has high Q closed cell foam insulation and Nasa grade real gold film window shading. PITA to clean without marring. The bedroom door is 1" foamboard clad in Teak. Reducing BTU gain is the hard part. That and expelling human expelled moisture.
- AlmotExplorer III
DieselBurps wrote:
Here is a fujitsu that is 0.77 kw at 9000 btu and 120 volts. Btu range is around 1200 btu -10000btu so less kw at lower settings. I believe the LOC amps are a lot less too with mini splits compared to typical RV units
0.77 KW is more in the ballpark.
Mini-split design in itself doesn't result in a lower LRC, but with 9,000 being less than 13,000 of a typical RV unit, LRC is likely lower too.
Now, if you get an "inverter mini-split", there is no LRC at all. Those are quieter too, because variable speed changes up and down, instead of cycling on and off. I see a lot of inverter mini-splits these days.
PS:
Australian link for Mitsubishi units says KW: 0.44(0.21-0.77), for their smallest unit, doesn't say BTU. Anyway, it's max 0.77 KW. 0.44 must be some average wattage. Compressor is variable speed, it runs all the time, but wattage is changing depending on the setting. - DieselBurpsExplorer
350w at 230v is only 1.5 amps
6000btu of heat would take about 1600w of electrical energy to produce
Not sure how much electrical energy it would take to remove 6000 BTU of heat, but I'm reasonably sure that 350w is not enough , unless that is one super efficient heat pump, not a freon refrigeration cooling unit
https://www.mhiaa.com.au/index.php/component/mitsubishi/products/default/96
The Daikin Uluru Sahara 7 is 8500BTU for 430W input , 20.3 EER. It uses r32 refrigerant. (not available in the USA), found in australia
There is a Daikin 230 volt unit that I think you can buy in the US that is 590 watts at 9000 btus, So imagine less at 6000 btu, maybe 450 watts? - MrWizardModerator350w at 230v is only 1.5 amps
6000btu of heat would take about 1600w of electrical energy to produce
Not sure how much electrical energy it would take to remove 6000 BTU of heat, but I'm reasonably sure that 350w is not enough , unless that is one super efficient heat pump, not a freon refrigeration cooling unit - JiminDenverExplorer III can cover 600w with my panels during peak sun. The bank alone should handle a few hours.
- DieselBurpsExplorerWith 1200 watts of solar and 800 amps of lithium I would think you could get a few hours run time and probably more with that ffjitsu mini split.
- DieselBurpsExplorerhttp://www.daikinac.com/content/assets/DOC/SubmittalDataSheets/2015/Single%20Split%20Systems/Wall%20Mount-HIGH%20EFF/GENERATED_FTXS09LVJURXS09LVJU.pdf
My mistake, it's 230 volts. Not sure how much extra juice would be used if you had an auto transformer to step that down to 120.
That's at 9000 btu's it would use less at a lower setting. I have a small camper so 5-6000 btu's would probably be all I needed since it would dehumidify the air as well. I know LG had made one that was 6000 btu's and 350 watts at 230 volts, but not available in the US.
The average consumption would be less if the compressor is cycling on and off.
The 120 volt mini splits I have been seeing by fujitsu are around 800 watts
Here is a fujitsu that is 0.77 kw at 9000 btu and 120 volts. Btu range is around 1200 btu -10000btu so less kw at lower settings. I believe the LOC amps are a lot less too with mini splits compared to typical RV units
http://www.fujitsugeneral.com/PDF_06/Submittals/Submittal9RL2.pdf
Here is one that is 120 volt and 600 watt if I am reading it correctly
https://www.ajmadison.com/cgi-bin/ajmadison/M09CJ.html?AID=10863584&PID=3952491&SID=ipkljchssc0004rm0000u&utm_source=CJ&utm_medium=CPA&utm_campaign=3952491 - westendExplorer
This is the unit I am using. It uses 50-65w less than the typical one does.
Thanks, Jim. - GulfcoastExplorer
DieselBurps wrote:
There are 9000 btu mini splits out there that use around 575 watts, over half what a coleman etc. uses.
Please show us one... - AlmotExplorer IIIIs there any name to this 500W 9000 BTU mini-split?
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