A 125 ton chiller is a type of cooling system used to provide air conditioning and refrigeration to large buildings. It is typically used in commercial and industrial applications, such as hospitals, factories, and office buildings. The term “ton” refers to the amount of heat that can be removed from the air by the chiller in one hour. A 125 ton chiller is capable of removing 125 tons of heat from the air in an hour. This type of chiller is typically powered by electricity, although some models may use natural gas or other fuel sources. The chiller works by using a compressor to cool a refrigerant, which is then circulated through a series of pipes and coils. As the refrigerant passes through the coils, it absorbs heat from the air, cooling it down. The cooled air is then circulated through the building, providing a comfortable environment for occupants.