Opening the download

Unzip the package and open hvac_equipment.blend in Blender 5.2.2 LTS. Use Cycles. CPU is selected by default; you can choose your compatible GPU.

Scenes and assets

The display scene places all 12 models on a neutral floor with a camera and lights. It is not a complete rooftop or building. The displayed models are copies of the catalogue assets, not additional models.

Use 01_Catalogue to inspect individual pieces, or 02_Example_Layout to see the arrangement. Add the extracted folder as an Asset Library and keep blender_assets.cats.txt beside the blend. The asset-marked objects have embedded previews. Appended objects may retain their catalogue positions; use Alt+G to reset their location.

Limitations

These are low-polygon scene-dressing models, not functional equipment or engineering drawings. Fan blades are not animated, and no working internal mechanisms, duct system, LODs, collision meshes or engine project are included. Some vent details are texture-based and some backs are open. Dimensions are supplied for placement, not manufacturer specifications.

Support

Send me a message through Superhive with your Blender version and a screenshot of the issue.