A Carrier 15 Ton Package Unit is a self-contained air conditioning system that is designed to provide cooling and heating for residential and commercial buildings. It is typically installed on the roof or outside of the building and consists of an outdoor condenser unit and an indoor air handler. The condenser unit is responsible for removing heat from the air and transferring it to the outside environment, while the air handler is responsible for distributing the cooled or heated air throughout the building. The Carrier 15 Ton Package Unit is designed to be energy efficient and provide reliable performance. It is designed to meet the needs of both residential and commercial applications, and can be used in a variety of climates. The unit is also designed to be easy to install and maintain, making it a great choice for those looking for an efficient and reliable cooling and heating system.