Residential Fridge

[Ford truck guy]

Good Morning all ,

It's been a while since beating a dead horse , so I will !

Does anyone know the procedure for the factory and their winterization process? On my buy sheet from RW , it stated that there was a charge to the dealer for - WINTERIZATION....When My coach was delivered , the water valve to the residential fridge was in the off position . I kept it that way as we did not want to use the campground water for that.
I did my process this weekend and DID NOT do the fridge YET , as I am wondering if that was completed before it left the factory.
I have no access to the rear of the fridge , so I really do not want to ADD PINK to the system unless I 100% have to . .

[RWJSIM2003]

I took the line off under the sink and put in a union. I don't use the Ice maker so I blew air through the line to clear it out and reconnected the union with the valve off this way I do not have to worry about the line freezing.