Fan Coil Units, consisting of two parts, a fan and a coil, are devices used for heating and cooling. These units need a thermostat to control.E-top FT series room thermostat expertise in controlling fan coil unit system. Features with: Each room can be controlled independently with the fan coil unit. Setting up a zone system is quite easy. 2. You can control them with fan coil thermostats. Thus, in each room, besides meeting the variable load (hotel, hospital) throughout the day, there is also the possibility to choose different room setting temperature. Fan coil systems operate in heating and cooling, it is required to perform heating or cooling in summer or winter periods. This option can be adjusted in the mode section. In General Life fan coil thermostats, heating or cooling mode selection can be made manually. When heating mode selected; If the room temperature falls below the set temperature, the fan coil is activated and tries to heat the environment. In cooling mode, if the room temperature rises above the set temperature, the fan coil is activated and tries to cool the environment. You can customize thermostats to be as: RS-485 Modbus thermostat, 2.4G Tuya WiFi thermostat, 2 pipe system thermostat, 4 pipe system thermostat even can be split room thermostat according to your different necessary.