HVAC application efficiently controls temperature, air quality
One of the most popular heating and cooling technologies, the variable air volume unit controls temperature by modulating the amount of air in the space it serves.
The unit maintains temperature and acceptable air quality by mixing outdoor air with return air, controlling the supply air pressure, heating or cooling the mixed air and controlling the exhaust air pressure. As the overall building air flow requirements increase or decrease, the main fans in the air handler speed up and slow down, to provide only as much air as is required. In addition, terminal units can control air flow to zones with motorized dampers and other mechanical control methods.
Correctly installed with a building management system, VAV systems offer:
- Fast control to keep the comfort zone limits
- Low consumption of electrical energy
- Lower consumption of heating and cooling energy than in constant air volume systems
- Reduced noise level
