Complex sentence: The promoters refer to the system as "solid state", however wheels are present for use during starting and stopping, the door moves, as well as any moving conveniences such as fans to air from heaters or air conditioning units.
Split into simpler sentences: The promoters refer to the system as "solid state". However, wheels are present for use during starting and stopping, and the doors move, as well as any moving conveniences such as fans to air from heaters or air conditioning units.