What is the primary function of a chiller in HVAC systems?

What is the primary function of a chiller in HVAC systems?

• A. To distribute heated air throughout the building
• B. To provide cooled water for air conditioning
• C. To heat water for domestic use
• D. To ventilate indoor air

Answer: (B)

The primary function of a chiller in HVAC systems is to provide cooled water for air conditioning. This process involves circulating water through a cooling coil in air-handling units or fan coil units, which in turn cools the air that is distributed throughout the building. The chiller operates by removing heat from the water, typically using a refrigerant that absorbs heat during the refrigeration cycle. This cooled water is crucial for maintaining comfortable indoor temperatures, especially in larger commercial and industrial applications. The other options describe functions that are not related to a chiller's purpose. For instance, distributing heated air is typically managed by a furnace or heat pump, heating water for domestic use is the responsibility of a water heater, and ventilating indoor air involves exchanging stale air with fresh air, often handled through ventilation systems rather than chillers. Understanding these distinctions highlights the specific role that chillers play in HVAC systems.

The primary function of a chiller in HVAC systems is to provide cooled water for air conditioning. This process involves circulating water through a cooling coil in air-handling units or fan coil units, which in turn cools the air that is distributed throughout the building. The chiller operates by removing heat from the water, typically using a refrigerant that absorbs heat during the refrigeration cycle. This cooled water is crucial for maintaining comfortable indoor temperatures, especially in larger commercial and industrial applications.

The other options describe functions that are not related to a chiller's purpose. For instance, distributing heated air is typically managed by a furnace or heat pump, heating water for domestic use is the responsibility of a water heater, and ventilating indoor air involves exchanging stale air with fresh air, often handled through ventilation systems rather than chillers. Understanding these distinctions highlights the specific role that chillers play in HVAC systems.