Differentiate between VAV and CAV to choose the best ventilation box
When it comes to ventilation systems, the common man falls way short. With terms like HVAC and so on present in abundance, it is natural to be confused. Another such term that confuses people abundantly is VAV and CAV. These acronyms are commonly used in the air conditioning world where this box equipment is responsible for regulating the airflow within a building. While CAV stands for Constant Air Volume, VAV, on the other hand, stands for Variable air volume.
Curious to know more? Well, before investing into either of these systems it is essential to understand the pros and cons of both. This is why each of these terms is explained in a detailed format for your ease.
What is a CAV?
CAV systems are responsible for providing constant air within a building. While the air temperature might be variable, however, the airflow into a specific part is constant throughout. These are suitable for small buildings as it is less expensive. Some of its advantages include:
- Cheaper than other airflow systems.
- Simple and compact in design.
- Extremely reliable.
- The control system can be adjusted as per requirements.
However, it does not comprise of a supply module that would allow the control of airflow and air temperature.
What is a VAV?
Out of both the VAV and CAV, the VAV is more energy efficient in controlling the airflow within a building. As the name suggests, the VAV system is responsible for providing variable airflow inside a building. It is specially built to cater to the different heating and cooling needs of different zones of a building. Like for example, a different zone might comprise of a single room or multiple rooms with the same heating and cooling needs.
Some of its advantages are:
- It makes less amount of noise as compared to other systems.
- The temperature control of VAV systems can control it accurately.
- It comprises of supply air modulation that regulates and varies the airflow.
VAV systems, however, are costs more. However, VAV systems are automatically adjustable as opposed to other systems. Can you imagine getting up every hour simply to adjust the airflow? Well, VAV systems have made things easier.
Look for an alternative for VAV
If conventional VAV systems are not what you are looking for, then chilled ceilings and beams cooling system might be the perfect alternative. The chilled beam system has separate systems for dehumidification and ventilation that provides floor airflow benefits to ceiling systems.
Wondering about its benefits? Well, chilled ceilings and beams cooling systems are quieter than VAVs. It saves energy and comprises of a better air distribution system.
However, it can cost higher than VAV systems. Also, since it is a newer technology, many engineers are not aware of its workings and the installation process.
If you are looking for a cleaner energy without worrying about the cost, then invest in this new system. By investing in the correct system, you can save up to 30% more and create a greener environment!