APPARATUS FOR SENSING REVERSED PHASE IN INVERTER COMPRESSOR FOR AIR CONDITIONER AND METHOD OF CORRECTING PHASES WITH SENSOR THEREOF

摘要

PURPOSE: A method is provided to automatically convert a connected line into a normal phase by judging with a sensor if the connecting line between a compressor drive and a compressor is wrong. CONSTITUTION: A method for correcting the reversed phase by a wrong connecting line between a compressor and a compressor drive is composed of the steps of: measuring the temperature of a refrigerant inlet(1a) of a compressor(1) and the currents inputted to the compressor from a compressor drive(5) if the compressor starts to work; comparing the measured temperature and currents with the set values; continuing to run the compressor with a microcomputer if the measured value is smaller than the set value; and correcting the phase inputted to the compressor by the microcomputer if the measured value is larger than the set value.