(4) "Installation" means the assembly of an industrialized building on site and the process of affixing the industrialized building, component, or system to land, a foundation, footings, or an existing building.

"Installation" means the construction of a foundation system and the placement or erection of a manufactured home or a mobile home on the foundation system. Such term includes, without limitation, supporting, blocking, leveling, securing, or anchoring such home [...]