Which document displays all major parts of an elevator installation?

The final layout drawing is the correct answer because it provides a comprehensive visual representation of the entire elevator installation. This document details the major components, including the elevator shaft, landing doors, machine room, and any relevant mechanical and electrical systems. It serves as a crucial reference for ensuring that all parts of the installation are properly aligned and integrated according to the design specifications.

While other documents serve important functions in the installation process, they do not capture the complete spatial and structural relationship of all major parts. The installation manual typically offers guidelines and instructions for the installation process rather than a holistic view of the layout. A component schematic shows individual parts and their relationships but lacks the broader context of the overall installation. An assembly guide focuses on the step-by-step assembly of components rather than the complete layout of the installation. Therefore, the final layout drawing is essential for understanding how all parts fit together within the space allocated.