This paper introduces an invention of air-conditioner. The main components of this air-conditioner are the same as conventional one (i.e. evaporator, condenser, compressor and expansive valve) except without four-way valve, additionally with innovative airway structures. The room-air is controlled to pass through the evaporator to be dehumidified and cooled down the temperature in the hot days; and the room-air is controlled to pass through the condenser to be heated up the temperature in the cold days; or the room-air is controlled to pass through the evaporator to be dehumidified first then driven to the condenser and heater to be heated up the temperature in the cold rainy days. Thus this patent can produce a unique function of dehumidification and heating simultaneously in cold wet days and also improve the shortages of convectional air-conditioner with four-way valve, such as easier out of order, less efficiency and less functions.
IIR/IRHACE Conference 2006, 15-18 February, 2006, Auckland, New Zealand