Hmm.....I didnt read through all of this, but it caught my eye because we actually have a Dutch Star in the shop that got a full solar/inverter makeover, and during testing we found the rear Penguin 2 had an internal blockage and needed replaced. We expect to receive the replacement within a week - supposed to be plug and play....we will see...
This is a Dutch Star, with heat pumps, and it has the CCC2 thermostat:
Parts we ordered - black unit.
DOMETIC AIR CONDITIONER ADAPTER KIT FOR FRESHJET 5 HEAT PUMPS
MFR # 9610008210
Dometic FreshJet 5 Low Profile ELECTRONIC RV Air Conditioner WITH HEAT PUMP 15,000 BTU - BLACK - FJX5557EHPBKCS
High amp and no flow pic as well as existing PN placard attached for ref.