Chilled water systems are centralized HVAC cooling systems that generate efficient cooling for one building or even a building complex.
Chilled water systems are financially efficient and operationally practical because they centralize a building complex’s entire HVAC air conditioning system and equipment in a centralized location. The alternative is to hire professionals to install multiple pieces of HVAC equipment in multiple locations.
So, the interior climate of a building can be set in the 70s while it is 100 degrees outside.
It is easiest to think about a chilled water system as an ambient heat transference system at its most basic. And this heat transference system is predicated on the refrigeration cycle of the chilled water system.
Chilled water systems remove ambient heat from the interior of the building via a system of pipes and pumps all over the building or complex. Chilled water pumps push the 45 degrees chilled water through chilled water lines.
Then that water is removed from the water and transferred to the water of a condenser system or into the outside air.
The film coefficient of chilled water systems, which is a technical term referencing the heat transference process of the system, is ten to 100 times more efficient than air-cooled chillers.
Commercial buildings stand to save more on energy bills with chilled water systems than air-cooled chillers.
Air-cooled chillers must be installed outside in the elements for optimum operation. Air-cooled chillers require a constant intake of fresh air to operate properly.
And being exposed to the elements 365 days a year means that air-cooled chillers require constant maintenance, repairs, and part replacements.
Chilled water systems require regular maintenance but do not require as much repair or replacement as air-cooled chillers since they are installed in the interiors of buildings. Chilled water systems are never constantly exposed to the weather elements.
So, their components tend to last longer than air-cooled chillers, a financial benefit.
Air-cooled chillers feature components like vents and ducts, which are very noisy when in operation.
Chilled water systems are much quieter when in operation. Since chilled water systems are widely used in hospitals, schools, and other commercial settings, having a quiet workspace is beneficial to the financial bottom line.