81. Free Download HVAC System Detail CAD Drawings – Ducting, Pipe Support, Cooling Tower, Air Handling Unit DWG

The above CAD drawings are a comprehensive set of detailed HVAC (Heating, Ventilation, and Air Conditioning) system plans — including all the essential technical details for the design, installation, and construction of ventilation, air conditioning, and air supply/exhaust systems in buildings.

• Ductwork and Accessories:
  Includes square and round ducts, duct joints, flexible ducts, dampers, elbows, tees, and flexible connectors — clearly illustrating dimensions, materials, and installation methods.
• Supports and Hangers:
  Detailed drawings of pipe hangers, clevis hangers, and flexible duct supports are provided to ensure safe and technically accurate pipe and duct installations.
• HVAC Core Equipment:
  Covers centrifugal pumps, cooling towers, expansion tanks, air handling units (AHU), and fresh air grilles — all fundamental components of HVAC mechanical systems.
• Duct Insulation Details:
  Illustrates the construction of insulation layers, duct tapes, and connections to the main duct system to ensure optimal thermal performance and durability.
• General Assembly and Reference Tables:
  Includes data tables, standard symbols, and detailed references for each type of material and component — supporting both design development and on-site construction.

I also recommend downloading other Block Library CAD drawings for your project reference.

• File format: .DWG
• Size: 1 MB
• Source: DWGshare
• AutoCAD platform 2018 and later versions. For downloading files there is no need to go through the registration process