Chiller
A machine that cools a secondary fluid (typically chilled water) to air-condition large spaces via coils or heat exchangers.
What does a chiller do in a large-footprint building?
The chiller produces cold water distributed to terminal units (air handlers, fan coils, indoor units depending on design). It is typical of campuses, hospitals, data centers and office complexes where thermal load is centralized.
What parameters should be monitored in operation?
Pressures, approach temperatures, heat exchanger performance and water quality affect efficiency and reliability. Water treatment limits corrosion and deposits; circulation anomalies can signal problems before a complete failure.
How does the chiller fit with other equipment?
It can coexist with local rooftops or heat pumps in hybrid designs. A preventive maintenance schedule aligned with occupancy hours reduces critical summer shutdowns for operations and occupants.