My guess is that the machine is a soda gun, but of the old pre-mix variety. That's when you'd just go buy a 5 gal corny of soda (not syrup) and hook it right up. Probably has a cold plate in it, and you'd need to keep your beer at a higher PSI because it is room temp, but sounds like an interesting system, as long as the internal lines are not filled with root-beer smell.
"People should not be afraid of their governments. Governments should be afraid of their people." - V
Secondary: Shady Lord RIS, Water to Barleywine, Pumpkin wine, burnt mead
Kegged: Crappy infected mild
Bottles: Apfelwein, 999 Barleywine, Oatmeal Stout, Robust Porter, Robust smoked porter, Simcoe Smash