This course applies ACCA Manual D, RS, and S principles to enhance comfort in a structure as well as providing tools and processes to mitigate duct sizing issues on existing structures. After the HVAC principles are reviewed, a duct layout on a floor plan is utilized by each person to apply the principles and size the duct system from a room-by-room load calculation using a duct calculator. An operating system is used to demonstrate static pressure restrictions associated with ECM and CT motors as compared with the manufacturer specifications.
A review of the ACCA Standard 5 Quality Installation is reviewed. Review of the ACCA Standard to commission a system once it is installed.
Objectives: After completing this class, participants will be able to:
- Discuss residential duct design standards and current industry issues.
- Demonstrate the use and application of sheet metal slide rulers.
- Define airflow effect on HVAC system blowers and building enclosure comfort.
- Demonstrate equipment selection procedures utilizing load calculation information.
- Utilize a room-by-room load calculation airflow to size supply registers.
- Size duct layout for a residential structure utilizing Manual D principles for an equal friction application.
