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Abstract

The present invention relates to a total heat exchange-type ventilating apparatus and a method for controlling same, which detects indoor and outdoor temperatures and humidities, calculates indoor and outdoor enthalpies from the detected temperature and humidity information, and selectively operates in a heat exchange mode or in an outdoor air cooling mode through the result of comparing the magnitudes of the enthalpies, thereby controlling the indoor temperature and humidity to be maintained at comfortable levels. To accomplish this, the apparatus of the present invention comprises: a first exhaust chamber (30) and a second exhaust chamber (40); a first air supply chamber (10) and a second air supply chamber (20); a total heat exchanger (50) for exchanging heat between indoor air introduced from the first exhaust chamber (30) to the second exhaust chamber (40) and outdoor air introduced from the first air supply chamber (10) to the second air supply chamber (20); a bypass pipe (60) which forms an airflow channel for enabling outdoor air to be directly introduced into an indoor area without passing through the total heat exchanger (50) during a free cooling operation; a first temperature sensor (31) and a first humidity sensor (33) for sensing the temperature and humidity of the indoor air; a second temperature sensor (11) and a second humidity sensor (13) for sensing the temperature and humidity of the outdoor air; and a control unit (70) which calculates the enthalpies of the indoor air and outdoor air on the basis of the temperatures and humidities of the indoor air and outdoor air, compares the sizes of the enthalpies, and controls an outdoor air inflow path.

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First Claim