Ducted Mitsubishi minsplits
* Updated *
We are selecting a cooling system for our house under construction in northern NJ. It’s a colonial with about 2400sf across 3 finished floors above grade, plus a 900sf finished basement.
Our plan is to install two ducted minisplit air handlers. One in the attic will serve the second floor and attic, and one in the basement will do the first floor only. Basement will have no AC for now.
I did Manual J load calculations, which show about 20k BTUH peak cooling load for the 2nd + 3rd floor system and about 15k BTUH for the 1st floor one.
Based on the feedback below, I have updated the plan!
Upstairs will get a Mitsubishi PEAD-A24AA7 ducted head unit, with a dedicated PUZ-A24NKA7 outdoor unit.
Downstairs will get a PEAD-A18 head unit, with a dedicated MUZ-FH18NA2 outdoor unit.
Giving each inside unit a dedicated outdoor unit is slightly more expensive for the equipment. It will also take up more space. But consensus seems to be that this will be much more efficient, and it does seem smart to have redundancy.
Any other thoughts on this system?
Thank you very much!
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