AIR CONDITIONER, UNIT FOR FLOATING CONVEYING SUBSTRATE WITH AIR CONDITIONER, AND METHOD OF SUPPLYING AIR FOR FLOATING CONVEYING SUBSTRATE

An air conditioner comprising a blower unit to blow air at a predetermined amount, a cooling unit arranged downstream of the blower unit in an air flowing direction, a compressor which is operated at a variable operating frequency so that a revolving speed thereof is adjustable, a condenser, and a c...

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Bibliographische Detailangaben
Hauptverfasser: YAMAGUCHI, SHUNJI, HOSOI, HUMIYUKI, ISHIMATSU, TAKUYA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An air conditioner comprising a blower unit to blow air at a predetermined amount, a cooling unit arranged downstream of the blower unit in an air flowing direction, a compressor which is operated at a variable operating frequency so that a revolving speed thereof is adjustable, a condenser, and a cooling coil connected in this order by pipes to circulate a heating medium to cool blown air. A heating unit is arranged on a downstream side of said cooling unit in the air flowing direction in which the blown air is heated by a heater. A control unit controls the operating frequency of the compressor and includes a compressor control part which adjusts the revolving speed of the compressor in such a way that the operating frequency of the compressor is decreased by a predetermined frequency when an output of the heating unit exceeds a first threshold value.