HVAC Symbols

About this template

This template provides a complete set of standard HVAC symbols for mechanical and architectural drawings. It includes symbols for air handling units, ductwork, vents, thermostats, and control systems. Each symbol complies with industry standards to ensure clear technical communication between engineers, contractors, and architects.

The symbols are organized by system components and maintain consistent line weights for different duct sizes. Special symbols are included for variable air volume (VAV) boxes, heat recovery units, and other specialized equipment. The template differentiates between single-line and double-line duct representations.

Using these standardized symbols improves HVAC system documentation quality and installation accuracy. They help create professional mechanical drawings that technicians can easily interpret. The template serves as both a design resource and educational reference for HVAC system planning and maintenance.