What is the purpose of condensate pumps in HVAC systems?

Condensate pumps play a crucial role in HVAC systems, particularly in applications where condensation occurs, such as air conditioning units. These pumps are specifically designed to remove condensate water, which is the excess moisture that condenses from the air when it passes over the evaporator coils. When these coils cool the air, moisture in the air can condense and accumulate in low areas, which can lead to potential flooding or water damage if not properly managed.

By transporting the collected condensate water from the unit to an appropriate drainage location, condensate pumps help maintain system efficiency and protect the surrounding environment from water-related issues. This is particularly important in installations where gravity drainage is not possible, as in basements or attics.

In contrast, the other options focus on functionalities unrelated to the management of condensation. Increasing refrigerant pressure pertains to the refrigeration cycle, while regulating temperature in ducts involves controlling airflow and the distribution of heated or cooled air. Enhancing airflow from the system relates to the effective circulation of air throughout the spaces being conditioned. None of these functions address the imperative need to prevent flooding and manage condensate, which is the primary purpose of condensate pumps in HVAC systems.