What is a major impact of condensation in HVAC systems?

Condensation in HVAC systems occurs when warm, humid air comes into contact with cold surfaces, causing moisture to form. This phenomenon can lead to significant issues, including mold growth. Mold thrives in damp environments, which can develop when condensation accumulates in or around HVAC components. This not only creates health risks for occupants due to potential allergies or respiratory problems associated with mold spores but also decreases the efficiency of the system. Over time, mold and moisture can obstruct air flow and damage equipment, further detracting from the system's performance.

In summary, while there are potential benefits of condensation in certain contexts, such as in dehumidification processes, its primary detrimental impact in HVAC systems is the encouragement of mold growth and associated reductions in system efficiency. Understanding this aspect is crucial for HVAC professionals to maintain system health and safety.