Daikin VRV system is a multi-split type air conditioner for commercial buildings that uses variable refrigerant flow control developed by Daikin to provide customers with the ability to maintain individual zone control in each room and floor of a building. 1 condensing unit can connect with fan coil up to 64 units. Harmonize with weather dependent Variable Refrigerant Temperature (VRT) and advance central controller system iTM (Intelligent Touch Manager) which help to track Daikin VRV operation. Users can control on-off, adjust temperature, set weekly timer, and report accurate energy consumption & operation data of each fan coil unit which is installed along the building through a screen