A 2.5 ton fan coil unit is a type of HVAC (heating, ventilation, and air conditioning) system used to provide climate control for a home or commercial building. It is composed of two main components: an indoor fan coil unit and an outdoor condensing unit. The fan coil unit is responsible for circulating air throughout the building, while the condensing unit is responsible for cooling the air. The fan coil unit is typically installed in the ceiling or attic, while the condensing unit is installed outside. The fan coil unit works by taking in warm air from the inside of the building and passing it through a series of coils. The coils are filled with refrigerant, which absorbs the heat from the air and transfers it to the condensing unit. The condensing unit then releases the heat to the outside environment. The 2.5 ton fan coil unit is a popular choice for many homeowners and businesses due to its efficiency and affordability. It is also relatively easy to install and maintain, making it a great option for those looking to upgrade their existing HVAC system.