What is Constant Air Volume System?

A Constant Air Volume (CAV) system is a type of HVAC (heating, ventilation, and air conditioning) system that maintains a constant airflow rate throughout its operation. In this system, the air supply to a space remains steady, with temperature control achieved by varying the temperature of the air supplied rather than adjusting the airflow. CAV systems are simpler and often less expensive to install and maintain than variable air volume systems, making them suitable for spaces with consistent thermal loads. However, they may be less energy-efficient in environments with fluctuating heating and cooling demands.