A fitting or duct should be named and what as to where it is on site?

In the context of HVAC sheet metal work, it is crucial for fittings and ducts to be clearly named and labelled for efficient installation and maintenance. Labelling provides essential information regarding the specific type of fitting or duct, its size, and its function within the HVAC system. This visibility allows technicians and installers to easily understand what each component is and where it is meant to be installed on-site without confusion. Clear labelling also aids in troubleshooting, repairs, and future modifications to the system.

Labelled components are essential for ensuring that all parties involved in the installation and maintenance of an HVAC system have a common understanding of the system layout. This improves overall efficiency and helps prevent errors during installation and adjustment phases.