A 3 ton rooftop unit is a type of air conditioning system that is typically installed on the roof of a building. It is designed to provide cooling for the entire building, and is often used in commercial and industrial settings. The unit consists of an outdoor condenser, an indoor evaporator, and a blower fan. The condenser is responsible for removing heat from the air, while the evaporator absorbs the heat and transfers it to the outside air. The blower fan then circulates the cooled air throughout the building. The 3 ton rooftop unit is a powerful and efficient way to cool a large area, and is capable of cooling up to 36,000 square feet. It is an ideal choice for large buildings, as it is able to provide a comfortable and consistent temperature throughout the entire building.