HVAC and BAS: Can BACnet control an HVAC system?
1 AIA CES APPROVED LU AVAILABLE FOR ATTENDEES UPON SUCCESSFUL COMPLETION OF AN EXAM.
The design of building automation systems (BAS) and building controls for heating, ventilation and air conditioning (HVAC) systems is based on the designer’s level of understanding, and on ASHRAE Standard 135: BACnet — A Data Communication Protocol for Building Automation and Control Networks. The HVAC system, its controls components and the building in which it is installed should all be considered together as parts of a single, whole design.
Designers should remain flexible in providing the best possible system that can control, to various degrees of comfort required, different applications within the same building. The system should provide this control with reasonable costs at the least possible energy use.
The BAS also may incorporate other building components, and be considered when incorporating things like room shades, lighting schedules and other elements.
- Assess basic design approaches for building automation systems.
- Gain a basic understanding of ASHRAE 135: BACnet — A Data Communication Protocol for Building Automation and Control Networks.
- Understand key equipment for integration options to improve system efficiency.
- Review examples of designing control systems for HVAC systems.
Jason Gerke, PE, LEED AP BD+C, CxA, principal, GRAEF, Milwaukee
Yanlin Zeng, PE, CEM, CMVP, LEED BD+C, Controls Engineering Supervisor, Southland Industries, Dulles, Virginia
Amara Rozgus, Content Manager, CFE Media and Technology