Certified Energy Manager Exam 2025 – 400 Free Practice Questions to Pass the Exam

A chiller is a crucial component in HVAC systems specifically designed to remove heat from a liquid, typically water, which is then circulated to cool air in the building. The operational principle of a chiller involves absorbing heat from the liquid and transferring it to the refrigerant, effectively lowering the temperature of the circulated water. This cooled water is then used to cool indoor spaces through air handlers or fan coil units.

The mechanism allows for efficient temperature regulation within a building, making chillers essential for maintaining comfort in both commercial and industrial settings. Their ability to provide cooling also plays a vital role in applications where precise temperature control is necessary, such as in data centers or laboratories.

Understanding the function of a chiller is important for energy managers because these systems significantly contribute to the overall energy consumption of a facility. Effectively managing chiller operations can lead to improved energy efficiency, reduced operational costs, and enhanced sustainability of HVAC systems.