Been watching videos for about 6 months. They are great! Has anyone looked at this for Air conditioning and RV? very expensive, but low power. Not the solar set up , just the AC.
Hi folks!
- Thread starter JCB
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There are RV videos that people installed them and use DC battery power with generator for power assist. It looks like the newer model is pure DC.
Here is the older 2015 video of Engineer775 did the install and test their hybrid model at a house.
3 x 325W panels and 90 Watt of AC power using 240v. Approx 800 Watts of power.
Here is the older 2015 video of Engineer775 did the install and test their hybrid model at a house.
3 x 325W panels and 90 Watt of AC power using 240v. Approx 800 Watts of power.
I remember these being discussed at some point, and I know of at least one person who bought one, but I don't recall whether it was on this forum or another.
I think the 22 Seer you are quoting is the AC/DC unit, the DC only unit datasheet doesn't list a SEER, but its EER rating is higher than the EER ratings of the two most efficient small minisplits I'm aware of (carrier @ 42 SEER and innovair @ 37.5 SEER). I'm not knowledgeable enough to know what to make of this.
One thing that also needs to be accounted for is 10-15% inverter losses. Can't say I fully understand SEER ratings so I'm not sure how to properly figure conversion efficiency in, but its definitely a factor in an offgrid/mobile/marine context.
I know SEER is seasonal efficiency ratio, and I know higher equals better. Beyond this its just numbers to me. Do you understand what the numbers mean? Are the numbers directly proportional to some measure of efficiency, for instance is a 30 SEER A/C 50% more efficient than a 20 SEER A/C?
@Dzl we can have some more fun and talk about HSPF (Heating seasonal performance factor) I kid but I do use my split more to heat vs cool. I should have said the 17-22 was not for the above units but from alibaba units Ive been looking at. A local solar installer also has some direct DC units and has had a number of problems with high current draws blowing 2x sized fuses, Until those units start getting the GOOD compressors (japan) we wont see that high efficiency numbers. What it should come down to in the long run is matching to the solar systyem. IE if micros are boosting your power stay ac or you have a large 48-120/240 that blows a ton of power just at idle stay AC (looking at you MPP) I use this one for my newest cabin https://www.mitsubishicomfort.com/node/1135 sucking all only 640watts
10% seems a good rule per 2 SEER
" According to the Kobie SEER Energy Savings Calculator, a 16 SEER unit uses about 13% less energy to produce the same amount of cooling as a 14 SEER unit of the same size. "
SEER Savings Calculator for Air Conditioners | Kobie Complete
Use our free and easy to use SEER Savings Calculator to quickly see how much energy you save by upgrading to a higher SEER2 rated air conditioner.
kobiecomplete.com
" According to the Kobie SEER Energy Savings Calculator, a 16 SEER unit uses about 13% less energy to produce the same amount of cooling as a 14 SEER unit of the same size. "
