FS: HO Scale Precooler

[doctorwayne]

The pre-cooler blows cold air into the reefers, probably before they're iced and before they're loaded. Empty reefers, sitting in the sun, pick up a lot of heat, and the freshly-picked produce contains a lot of "field heat", too. The procedure might eliminate or at least delay a stop for re-icing during transit.
There's some additional info HERE

Wayne