The condensing units in refrigerators, air conditioners, and chillers control the temperature. The heat is transferred by compressing a refrigerant, pumping it through coils, and using the air around the coils to heat and cool the facility. To maintain a comfortable atmosphere in a space, air can be cooled, dehumidified, or reheated. There are different models available, which can be differentiated by the number of ton of refrigeration (TR). Customers can select between 2 TR, 3 TR, 4 TR and 5 TR evaporator condensing units. By their size, the condensing units can be used as small household appliance units to large industrial units.