> For the complete documentation index, see [llms.txt](https://docs.betterbuilding.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.betterbuilding.io/user-guide/2d-building/building/hvac/space-hvac/variable-air-volume-system-air-cooled.md).

# Variable Air Volume System (Air Cooled)

The Variable Air Volume System (Air Cooled) dynamically modulates air volume to meet varying thermal requirements. Air cooling is employed for efficient temperature control, enhancing comfort and energy performance.

<figure><img src="https://2129322768-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfKJnzF2TwHA3APPbiCpF%2Fuploads%2F9a0DdDfPFHtIyMZeFP4A%2Fimage.png?alt=media&amp;token=a55117a2-d041-414c-ace5-29f01f1f76af" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2129322768-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfKJnzF2TwHA3APPbiCpF%2Fuploads%2FaKBRnGqprJzuMevTGNcW%2Fimage.png?alt=media&amp;token=459d36f0-1d0e-4509-bfaf-85e7767171b7" alt=""><figcaption></figcaption></figure>

### Outdoor Air / Person

Specify the outdoor air flow rate for each zone in terms of litres per second per person.

### Heating Coil Type

This field is locked to Electric heating coil type only.

{% hint style="info" %}
Only on Premium Plans. Please reach for further [support](https://app.gitbook.com/o/WS5BGzA70OvplUrfmCf1/s/fKJnzF2TwHA3APPbiCpF/~/changes/232/support-and-training/contact-us).
{% endhint %}


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