I own 2007 Post 50, hull #100 and am replacing the main salon A/C system with a new design. It is a split system with two air handlers. The topside air handler/heat exchanger which is in the fly bridge enclosure is a custom unit because of the fly bridge slope. Mine is fine (compressor went bad on the chiller, triggering the system replacement) and I will give it to any 50 owner who wants it. You’ll have to cover the shipping. If you happen to have a problem with yours, you’ll find the lead time for a new unit is ridiculous and the price more so. Also two fan units that are good. It’s all 220v equipment. If you’re interested, contact me at : Email Address Removed, Please Read our Guidelines