A 3 ton rooftop HVAC unit is a type of air conditioning system that is typically installed on the roof of a building. It is designed to provide cooling and heating to the interior of the building, while also providing ventilation and air filtration. The 3 ton unit is the most common size of rooftop HVACHVAC unit, and is typically used in commercial buildings, such as offices, retail stores, and warehouses. The unit is designed to be efficient and cost-effective, while also providing reliable performance. It is capable of cooling or heating a large area, and can be used in a variety of climates. The unit is typically powered by electricity, and is usually connected to a thermostat to regulate the temperature inside the building. The 3 ton rooftop HVAC unit is a great choice for businesses that need reliable and efficient cooling and heating solutions. It is also a great option for those who want to reduce their energy costs, as the unit is designed to be energy-efficient.