Variable Refrigerant Flow (VRF) air conditioning systems are designed to maintain preset climate conditions in multiple rooms simultaneously, making them multi-zone and highly efficient. These systems can provide individual climate control in dozens of rooms, allowing users to set different temperatures in each zone. Among their advantages is high energy efficiency, as the system regulates refrigerant flow based on current demand, reducing energy costs. Modern three-pipe VRF systems also allow indoor units to operate in different modes: some rooms can be heated while others are cooled simultaneously. Furthermore, VRF systems are typically equipped with intelligent controls, allowing users to remotely monitor and adjust the climate using mobile apps or smart home systems.