> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/dragonfly-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/dragonfly-primer/components/3_energy/detailed_hvac.md).

# Detailed HVAC

![](/files/a6mTApDu6rYsgz5rk9db)

![](/files/T0y6KElDD9gZ8JpSYYOk) - [\[source code\]](https://github.com/ladybug-tools/dragonfly-grasshopper/blob/master/dragonfly_grasshopper/src//DF%20Detailed%20HVAC.py)

Apply a detailed Ironbug HVAC to Dragonfly Buildings, Stories or Room2Ds.

### Inputs

* **df\_objs \[Required]**

Dragonfly Buildings, Stories or Room2Ds to which the input Ironbug HVAC will be assigned. This can also be an etire dragonfly Model. Only the relevant Room2Ds referenced in the \_hvac\_system will be assigned the HVAC system.

* **hvac\_system \[Required]**

A fully-detailed Irongbug HVAC system to be assigned to the input dragonfly objects.

* **name**

Text to set the name for the HVAC system and to be incorporated into unique HVAC identifier. If the name is not provided, a random name will be assigned.

### Outputs

* **report**

Reports, errors, warnings, etc.

* **df\_objs**

The input Rooms or Model with the detailed HVAC system applied.