A fan coil terminal is a device that is used to regulate the temperature of air in a building. It works by taking in air from the outside, heating or cooling it, and then distributing it throughout the building. This helps to ensure that the air inside the building is at a comfortable temperature. Fan coil terminals are usually installed in the ceiling or walls of a building, and they can be either ducted or non-ducted. The fan coil terminal is connected to a thermostat, which allows the user to set the desired temperature. The fan coil terminal then takes in the air from the outside, heats or cools it, and then distributes it throughout the building. This helps to ensure that the air inside the building is at a comfortable temperature, while also reducing energy costs. Fan coil terminals are a great way to keep your building comfortable and energy efficient.