# Constant Air Volume System (Air Cooled)

A Constant Air Volume System (Air Cooled) is a robust HVAC system with consistent air volume delivery. It regulates cooling by adjusting the air temperature through an air-cooled mechanism. This system ensures stability in airflow, providing reliable and efficient temperature control for diverse building spaces. 

<figure><img src="https://2129322768-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfKJnzF2TwHA3APPbiCpF%2Fuploads%2F5TxJzAR9DyqqwMeAjTd2%2Fimage.png?alt=media&#x26;token=3a8551f9-faa2-44ea-94ee-dd17f67731f7" alt=""><figcaption></figcaption></figure>

## Plant Chilled Water

<figure><img src="https://2129322768-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfKJnzF2TwHA3APPbiCpF%2Fuploads%2FfPErmVphYwrRkzDKQ3HA%2Fimage.png?alt=media&#x26;token=5f311798-46d3-4c7b-a5d3-5e6da5d41d24" alt=""><figcaption></figcaption></figure>

### Chillers

Specify the number of chillers.

### Chiller CoP

Specify the coefficient of performance of the chiller(s)

### Design Setpoint

Specify the chilled water supply temperature.

### Primary Pump Rated Head

Specify the Primary chilled water pump rate head in kilopascals.

### Secondary Pump Rated Head

Specify the secondary chilled water pump rate head in kilopascals.

### Design Delta Temperature

Specify the temperature difference between the chilled water return temperature and the chilled water supply temperature.

## Plant Hot Water

<figure><img src="https://2129322768-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfKJnzF2TwHA3APPbiCpF%2Fuploads%2FjaW7ntwW9eJEpOhjlY2h%2Fimage.png?alt=media&#x26;token=6182fd1a-d0da-4525-a511-530b8d2744a8" alt=""><figcaption></figcaption></figure>

### Boilers

Specify the number of boilers.

### &#x20;Design Setpoint

Specify the hot water supply temperature.

### Pump Rated Head

Specify the hot water pump rate head in kilopascals.

### Design Delta Temperature

Specify the temperature difference between hot water return and water supply temperatures.

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