Re: Soft serve Ice cream in a food truck Heat concerns
Well first thing I'd look at is determine where the compressor vents in the ice cream freezer housing are located. Then see if they face an outside wall on your mobile unit, if your lucky you might get by with a fan venting from just outside air blowing directly into the compressor vents on the freezer. I'd work that angle before buying more refrigeration just to cool your freezer, gets pretty ugly doing that, unless you can get a unit that would fit your rig to cool the freezer area somewhat.
You should also be looking at how efficient your exhaust system is. If your running that many fryers you should have a very powerful exhaust system with a balanced makeup air design. Make up air can be difficult to control in an open environment like a mobile food unit, but by having the proper location for makeup air, you can perhaps better control the temps in your work area. Google makeup air for exhaust hoods to get more info.