Alabama Contractors License Practice Exam

Is the statement correct that a duct tightness test is mandated for air handlers in conditioned spaces?

1. True

2. False

The correct answer is: False

A duct tightness test is designed to evaluate the integrity of the air distribution system within a building. While the exact requirements may vary by jurisdiction and specific building codes, the general intent is to ensure that the air delivered through ducts is effectively reaching its intended areas without excessive leakage. In many cases, duct tightness testing is mandated primarily for duct systems located outside of conditioned spaces or in unconditioned areas, like attics or crawlspaces, where energy loss through leaks can significantly impact efficiency. In conditioned spaces, the focus is typically on the performance of the air handlers themselves and ensuring that they properly condition the air without significant loss. Therefore, duct tightness testing is not universally required for air handlers located within conditioned spaces. Instead, the standards may emphasize the efficiency and performance requirements for the overall HVAC system without mandating such tests for the characteristics of ducts within these spaces. This understanding aligns with certain building codes and energy efficiency standards, which prioritize performance metrics that could differ based on location, making the statement that a duct tightness test is universally mandated for air handlers in conditioned spaces inaccurate.