A fan coil thermostat is a device used to control the temperature of a fan coil unit, which is a type of heating and cooling system found in many commercial and residential buildings. It works by regulating the temperature of the air in the fan coil unit, which is typically connected to a central air conditioning system. The fan coil thermostat is usually located near the fan coil unit and is used to set the desired temperature. It typically has a dial or a digital display that allows users to adjust the temperature setting. The fan coil thermostat also has a built-in safety feature that will shut off the system if the temperature gets too high or too low. This helps to prevent damage to the fan coil unit and other components of the air conditioning system. The fan coil thermostat is an important part of any air conditioning system, as it helps to maintain a comfortable temperature in the building. It is important to regularly check and maintain the fan coil thermostat to ensure that it is working properly and providing the desired temperature.