I don't know how your TravelCraft's cab ventialtion system is set up ... but in our motorhome's Ford cab with the cab air circulation system set to "MIX" all air - whether it be heated or cooled by the air conditioner, as per the temperature control setting - comes out only from the windshield's defroster openings and down at the feet (none out of the chest-high openings on the dash).
Running this way in air conditioner mode, cool air is constantly bathing our feet and the floor area. Especially nice on the feet if you have the system's fan set at a high fan speed setting!
