What is typically the first step in the duct installation process?

The first step in the duct installation process is planning the layout. This is critical because it involves understanding the overall design and requirements of the HVAC system being installed. A well-thought-out layout takes into account the size of the space, the locations of vents, returns, and the main trunk line. It also considers efficient airflow and accessibility for maintenance.

Proper planning ensures that the installation minimizes energy loss, optimizes performance, and meets local building codes. By establishing the layout first, a technician can effectively decide on the necessary duct sizes and materials, as well as the best configurations to ensure air distribution meets the building's heating and cooling needs.

In contrast, measuring duct sizes, choosing duct material, and conducting airflow tests are tasks that follow the initial planning phase. Without a solid layout plan in place, these subsequent steps may lead to inefficiencies or require reworking the installation, thus underscoring the importance of initiating the process with layout planning.