Just a FYI. I installed the Samsung RF18 and plugged it into the old ice-maker circuit 3 years ago. With that circuit powered from the inverter, it obviously required the inverter to be left on all the time while dry-camping. I found that the Magnum inverter draws quite a bit of power while idling and doing nothing causing me to run the generator more than I felt was necessary. It is nice to have that big Magnum inverter when you want to run the microwave or watch TV, but it is a bit excessive for smaller draw long term situations. So, I installed a smaller dedicated inverter (Xantrex 1000 watt) and transfer switch just for the refrigerator. My estimate is that it saves me about 1/2 hour of generator time per day while I am dry-camping. That may not seem like much, but it adds up if you do a lot of dry-camping.
Richard
p.s. I also moved the circuit from the original refrigerator and added a dedicated plug-in below the new fridge to be used for a space heater in the Winter when we are in a park with 50 amp electric power. That way, the space heater is on a separate circuit breaker and is not competing with other electrical devices (like my wife's hair dryer).