Licensed Professional Engineer will explain how to complete a Mechanical Schedule that is used to specify mechanical equipment used in a construction design set. This is typically required for contractors to install the correct equipment and meet the design intent of the plans.
For more video content on HVAC including design of HVAC plans, see my online courses below:
digitechvideos.uscreen.io
The subscription will provide access to CAD file design templates as well as other useful files that can be used to design MEP Engineering Plans.