Course Number and Title: ACR 115 Air Distribution and Balancing
This course provides background needed to estimate, design, and select equipment for residential heating and air conditioning systems. Heat loss/gain load calculations and design duct systems to conform to industry standards are covered. Air balancing instruments are introduced.
- Evaluate different types of air distribution systems and associated components. (CCC 2, 5; PGC 7)
- Apply techniques used to predict and measure air-flow. (CCC 2, 3, 6; PGC 4, 5, 7)
- Analyze actual and theoretical scenarios to ascertain load estimations, component location, and proper duct placement. (CCC 1, 4, 6; PGC 4, 7)
See Core Curriculum Competencies and Program Graduate Competencies at the end of the syllabus. CCPOs are linked to every competency they develop.
Upon completion of this course, the student will:
- Evaluate different types of air distribution systems and associated components.
- Compare duct components normally found in residential applications.
- Examine types of air duct configurations and their applications.
- Apply techniques used to predict and measure air-flow.
- Identify the types of air balancing instruments, and discuss their applications.
- Determine air-flow using the temperature-rise method.
- Gauge velocity pressure using an inclined manometer.
- Gauge system velocity pressure using a vane anemometer.
- Determine system cubic feet per minute (CFM) using a vane anemometer.
- Determine system CFM using the temperature-rise method.
- Adjust system diffusers to proper CFM using a velometer.
- Analyze actual and theoretical scenarios to ascertain load estimations, component location, and proper duct placement.
- Calculate round and square duct size when given the friction rate and required CFM.
- Determine duct velocity when given friction rate and duct size.
- Identify equipment, duct, and diffuser locations for residential applications.
- Calculate heat gain and heat loss for a typical residential application in accordance with Air Conditioning Contractors of America (ACCA) Manual-J (including duct distribution plan and equipment list).
Students must demonstrate proficiency on all CCPOs at a minimal 75 percent level to successfully complete the course. The grade will be determined using the Delaware Tech grading system:
Students should refer to the Student Handbook for information on the Academic Standing Policy, the Academic Integrity Policy, Student Rights and Responsibilities, and other policies relevant to their academic progress.
Calculated using the following weighted average
Percentage of final grade
Quizzes (Formative) (equally weighted)
Projects (2) (Summative) (equally weighted)
Lab Competency (Summative) (equally weighted)
- Apply clear and effective communication skills.
- Use critical thinking to solve problems.
- Collaborate to achieve a common goal.
- Demonstrate professional and ethical conduct.
- Use information literacy for effective vocational and/or academic research.
- Apply quantitative reasoning and/or scientific inquiry to solve practical problems.
- Demonstrate professional behaviors that satisfy workplace expectations and include adherence to safety and environmental concerns related to the field.
- Service commercial refrigeration and residential heating, ventilation, and air conditioning (HVACR) systems, and interpret related electrical wiring diagrams and schematics.
- Apply theories of electricity and high and low voltage controls to the HVACR field.
- Explain scientific principles as they relate to HVACR system operations.
- Safely use tools, instruments, and equipment related to the HVACR industry.
- Explain the principles of operation, service, and repair of residential HVACR and commercial refrigeration systems.
- Identify best practices for proper installation of HVACR equipment and systems.
The College is committed to providing reasonable accommodations for students with disabilities. Students are encouraged to schedule an appointment with the campus Disabilities Support Counselor to request an accommodation needed due to a disability. A listing of campus Disabilities Support Counselors and contact information can be found at the disabilities services web page or visit the campus Advising Center.