Chiller
An HVAC system that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle.
Full Definition
A Chiller is a machine that removes heat from a liquid (typically water) through a vapor-compression or absorption refrigeration cycle. This chilled liquid is then circulated through heat exchangers to cool air or equipment. Chillers are central to large building cooling systems, producing chilled water that is distributed to air handling units, fan coil units, and other terminal units. Chillers are tracked with properties for cooling capacity, efficiency ratings (COP, EER), refrigerant type, and operational status.
How It Works
Related Terms
Equipment
Physical assets like HVAC units, pumps, and electrical systems that are monitored and maintained.
Cooling Tower
A heat rejection device that removes waste heat from a building's cooling system to the atmosphere.
Pump
A mechanical device that moves fluids (water, refrigerant, etc.) through building systems.
HVAC System
The integrated system of equipment, controls, and distribution networks that provide heating, ventilation, and air conditioning.
AHU (Air Handling Unit)
A central HVAC system component that conditions and circulates air throughout a building.