Author Topic: Mini Split  (Read 980 times)

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Offline lighthunter

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Re: Mini Split
« Reply #30 on: April 09, 2022, 08:05:47 am »
Thats interesting SN, thanks for your post! As ive looked at the high end units, ive noticed more comments about failures. Wondering if very high hspf values could equal very thin radiators, not to mention pushing the limits of 410 pressures. Ive cautioned people on going too high performance or too low and choosing a mature product. Your experience is valuable. Yeah, ive 0 complaints on the pioneer, the indoor fan is even quieter than most ive seen.  I turned it on max the other day for a friend to check noise at outdoor unit. It was about 55db running at 0°C OAT. Also discharge air temp in photo. i doubt thats accurate since meter is in airflow but after only a few seconds, my hand felt frostbite for 5 min after so it was cold😨 (farenheit in photo).  And a photo of current draw while still producing heat. (Probably minimum) this is 12k unit.
We really like it.
Health Warning: May contain traces of nut!
LH

Offline lighthunter

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Re: Mini Split
« Reply #31 on: June 25, 2022, 09:57:30 pm »
So, weve added two more of these units to the house. Now the solar panels can heat or cool the house and the garage for very low cost and the solar takes care of most if not all of the day use. The two 9ks were installed in march i think. The calculated usage to cool the house in 90F weather is about 315 kwh per month. Thats under $30usd/mo at our rates, much less with solar. With 7kw of solar one 3kw array doesnt even turn on when its sunny. These last two models are hyperheats wheras the first one was just the plain version. If anyone is confused about all the seers, hspfs, eers, 9k, 12k etc, there are so many things to consider, just go to a website called NEEP. Its like AHRI but way better. These guys do tests and record data for you to see. The COP heating performance at 5° tells the story. So any machine that can get close to 2.0 COP at 5° is very efficient at heating. The hyperheat version isnt necessarily more efficient, but it can hold the btu heat capacity output at 5° wheras the nonhyper models decline to 50% btu output at that temp. Colder than 5°F they will continue to decline output but hypers will just produce more heat at that temp and also use more electricnpower to do it, so long as COP stays above 1.5 or so its still a win. Ive been exposed to several brands now and ive not seen or heard of anyone that had a problem. Not sayin it couldnt happen but seems like a mature product, they have it figured out how to build em. Im not the kind to spend a lot on things. They dont give the things away but they werent too bad either if you put them in yourself. No higher cost than any other heating system and this does both. Its just such a great compliment to solar.
We are very happy so far. Cleaning cotton fuzz from radiators with garden hose has been only maint so far. The two 9ks are usually running 1.3 to 2.5 amps 240AC during the 90 degree weather.
Health Warning: May contain traces of nut!
LH

Offline dang

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Re: Mini Split
« Reply #32 on: July 03, 2022, 10:49:39 pm »
"It may be that your sole purpose in life is to serve as a warning to others" - Anonymous