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Specialized inverters for the heating, ventilation, and air conditioning (HVAC) industry adopt high-performance vector control technology. They automatically adjust the voltage-frequency ratio of the inverter output according to the motor load rate, improving the efficiency of motors and systems, reducing motor energy consumption, noise, and vibration. This makes it easier to optimize the constant-temperature and constant-pressure cooling capacity of compressors in water-cooled units and other HVAC systems.