12V DC voltage needed to operate fridge on 120V AC electric element or Propane.
The DC is used as control circuit
AS for priming the fridge.......not sure what you mean by that.
IF you are referring to getting propane to flow------turn on/light off stove top burners on high to get propane flow established and place a demand on LP regulator. Then turn fridge ON---helps when propane has been valved out for any period of time. Fridge uses very little propane so it can take several attempts when you haven't established flow.
If by priming........you mean get fridge to operate.
That is a process of using heat source to vaporize ammonia which is then condensed into a very cold liquid which then sucks up (absorbs) heat from the freezer and food section compartments. This takes time initially to have a cooling effect
SO
Good 12V DC voltage
Propane flow
Time (8-12 hrs)
AND only operate fridge when it is LEVEL. Otherwise DAMAGE/PERMANENT
