replacement air conditioner

pianotuna wrote:
Chewydog,


There are 48 volt dc air conditioners. Some are mini splits.

There are two importers (as of a year or so ago) of these units in the US - I really, really wanted to go this route as I have a 48V system. For the OP, unfortunately neither import cassette units but one could probably be imported via Alibaba/Ebay or a similar source. But that brings me to my second point - because I wanted these units but couldn't find reviews on them, I went on Instagram to do hashtag searches and PM'd users who had installed them. The overwhelming majority of responses I received were to "stay away" because they seemingly all had issues. Just relaying the word of warning.

I went with a LG 240V multi-split, so that I can get parts if needed and because they had the most efficient condenser unit in the class. With the same 30K of advertised capacity as my rig came with, these cool and heat much better, and use a third of the energy in day over day comparisons. It's still possible to see them pull a combined 2.5kW at times (heating), but they do so for much shorter periods and typical draw is closer to 700W per 15K indoor unit, when running on high cool or less than half that once the room is close to the desired temp.