Energy efficiency is a main concern for HVAC systems relating to Duct system leakage. The concerning question is how the engineer specifies duct leakage in specifications.

Learning Objectives

1. Know and understand the different standards : AABC Leakage Standards / SMACNA Seal Class A / ASHRAE 90.1 / California Uniform Mechanical Code.
2. Be familiar with how to decipher the allowed leakage rate when using SMACNA leakage class.
3. Able to do a comparison of AABC %leakage standards to System Test CFM vs Duct Section CFM (Cumulative leakage rate) utilizing actual rates.
4. Be able to explain the considerations for Energy Loses & Cost.