Which of the following is a primary function of the condensate drain in HVAC systems?

A primary function of the condensate drain in HVAC systems is to remove excess humidity. When the air conditioning system operates, it cools the air by passing it over a cold evaporator coil. This process causes moisture from the air to condense on the coil, forming water droplets. If this condensate is not effectively drained away, it can lead to excessive humidity levels within the system and potentially create water damage or problems such as mold growth. Therefore, the condensate drain plays a crucial role in maintaining proper humidity levels in the conditioned space and ensuring the overall efficiency and effectiveness of the HVAC system.