Jul 14, 2024  
2024-2025 Catalog 
2024-2025 Catalog
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SHM 204 - CAD and HVAC Design

Credits: 4
2 Lecture Hours 4 Lab Hours

Prerequisites: MAT 191  

In this course, students synthesize computer-aided design (CAD) and heating, ventilation and air conditioning (HVAC) system principles. The focus is on applying mechanical drawing and mathematical skills to create HVAC design drawings that align with the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) and American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) design manuals. Mastery of CAD software and problem-solving within HVAC system design contexts is emphasized.

Learning Outcomes
Upon successful completion of the course, the student will: 

  1. Classify HVAC system types by analyzing engineering drawings. 
  2. Evaluate HVAC systems for spatial and cost efficiency. 
  3. Calculate airflow changes in HVAC systems based on design variables. 
  4. Characterize airflow dynamics within different HVAC systems. 
  5. Compute the British Thermal Units (BTUs) necessary for system modifications. 
  6. Describe heat transfer principles within HVAC contexts. 
  7. Measure duct systems’ static, velocity and total pressures. 
  8. Estimate pressure variations in duct fittings under various conditions. 
  9. Determine the impact of changes in revolutions per minute (RPM), static pressure and brake horsepower on fan operations. 
  10. Sketch HVAC shop drawings that incorporate all system fabrication and installation requirements, adhering to engineering and shop standards.
Listed Topics
  1. HVAC system overview 
  2. HVAC components 
  3. Air properties 
  4. Psychometrics 
  5. Duct sizing principles 
  6. Duct design considerations 
  7. Fitting coefficients 
  8. Blueprint analysis 
  9. Specification interpretation 
  10. Fans and fan law applications 
  11. Shop drawing creation 
Reference Materials
Instructor-approved textbooks and materials
Students who successfully complete this course acquire general knowledge, skills and abilities that align with CCAC’s definition of an educated person. Specifically, this course fulfills these General Education Goals:
  • Critical Thinking & Problem Solving
  • Quantitative & Scientific Reasoning
Approved By: Dr. Quintin B. Bullock Date Approved: 05/20/2024
Last Reviewed: 05/20/2024

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