Just converted a freezer

I used to have a commercial style kegerator (true tdd-1) but that kicked the bucket and now I have just converted over a magic chef 7.2 cubic ft. My question is about how long does it take to chill a keg in these? My old true would cool down kegs FAST, but I don't think that will be happening now. On the plus side, I think the noise and electricity use are going to go way down.

 

Overnight seems to do it for my system and there's no fan.

 

Fill the pipeline and it wont matter.

 

Less than 12 hours for my 15 year old fridge to cool a 65 degree keg to whatever temperature it cools it to, honestly I have never checked.