AIR CONDITIONER

PROBLEM TO BE SOLVED: To provide an air conditioner determining presence/absence of ventilation fault by using a control command value used in motor control parts performing feedback control of DC fan motors, simplifying a configuration and improving determination accuracy of ventilation fault, etc....

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Bibliographische Detailangaben
1. Verfasser:	ISOZUMI SHINICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an air conditioner determining presence/absence of ventilation fault by using a control command value used in motor control parts performing feedback control of DC fan motors, simplifying a configuration and improving determination accuracy of ventilation fault, etc. SOLUTION: The air conditioner 1 includes: fans 33, 25 making air flow in indoor heat exchangers 30 and an outdoor heat exchanger 13; the DC fan motors 32, 24 driving the fans 33, 25; and the motor control parts 35, 28 performing feedback control of the DC fan motor 32, 24 so that rotational frequency of the DC fan motors 32, 24 becomes a target value. The air conditioner 1 further includes a ventilation fault determination means 50 determining presence/absence of the ventilation fault with respect to the indoor heat exchangers 30 and the outdoor heat exchanger 13 based on a speed command value Vsp used for a control command in the motor control parts 35, 28 or its corresponding HEX value. COPYRIGHT: (C)2011,JPO&INPIT