Chilled water is a type of cooling system that uses a refrigerant to cool water down to a temperature that is lower than the ambient temperature. This cooled water is then circulated through a building’s air conditioning system to cool the air. Condenser water is a type of cooling system that uses a condenser to cool the refrigerant before it is circulated through the air conditioning system. The condenser cools the refrigerant by transferring heat from the refrigerant to the condenser water, which is then circulated through a cooling tower to dissipate the heat. The cooled condenser water is then circulated back to the condenser to repeat the process.