What information might HVAC wiring diagrams typically exclude?

HVAC wiring diagrams primarily serve as a schematic representation of the electrical connections and components within a heating, ventilation, and air conditioning system. These diagrams are designed to provide a clear understanding of how different parts of the system connect and interact with one another.

The choice indicating exactly the routing and mounting is correct because wiring diagrams generally focus on the relationships and connections between components rather than on the physical installation details. The physical layout, including how the wires are routed in walls, ceilings, or other locations, and the specific mounting details are usually found in installation manuals or other technical documentation rather than in the wiring diagram itself.

On the other hand, diagrams will typically include critical information such as voltage levels to ensure proper power supply to each component, component specifications to identify the types of devices used (e.g., motors, thermostats), and electrical load calculations to determine the necessary ratings for circuit protection and wiring sizes. Therefore, while wiring diagrams provide essential electrical connection information, they tend to exclude the specifics of how and where components are physically positioned and mounted.