Steve: I have 5 LUNAIRE units on board. When one quits it will be come an anchor. LOL. Really though in my mind A/C Units and operation are pretty Generic. The basic operation of A/C what it does and how they work are the same. A little maintenance like keeping return air filters clear, flushing out the condenser Coils with some “CLR” once a season and a drop of oil in the little hole in the blower motor as called for (we use sewing machine oil) goes a long way in maintains longevity of any unit. Don’t over tax the unit by that I mean if it’s 100 deg F outside 80-85 inside is cool. Don’t try and get to 70 Deg F Dometic owns the World but the digital controls are 98% All made by Micro-Air and labeled for the other manufactures. Stay Cool or warm Bob Kovach Sent from my i-Pad Chief Engineer Bob Kovach (KJ4UGE) FOR SALE M/Y ALLEZ! 1992 MT50 WIDE-BODY Visit (https://tinyurl.com/y83m925f) Visit: https://www.boattrader.com/boat/1992-marine-trader-50-widebody-7286542/ (Gold Looper) 5-2-2016 MTOA2631, USCG-CWOA, WRCC, AGLCA1979