초록 ▼

An air conditioning apparatus includes an external heat-exchanger having upper and lower side heat-exchanger elements, arranged in a vertical direction, each having a plurality of fluid pipes, upper and lower fan devices disposed opposite to corresponding heat-exchanger elements, and a temperature s

An air conditioning apparatus includes an external heat-exchanger having upper and lower side heat-exchanger elements, arranged in a vertical direction, each having a plurality of fluid pipes, upper and lower fan devices disposed opposite to corresponding heat-exchanger elements, and a temperature sensor disposed on one end (discharge side during cooling) of the upper-most fluid pipe of the upper side heat-exchanger element for outputting a detection signal indicating the condensation temperature of the external heat-exchanger corresponding to the condensation pressure of the external heat-exchanger. The rotation speed of the upper side fan device is regulated in accordance with the detection signal from the sensor to control the condensation pressure of the upper and lower side heat-exchanger elements within a prescribed range.

대표청구항 ▼

An air conditioning apparatus which carries out at least a cooling operation, comprising: compressing means for compressing refrigerant; external heat-exchanger means for condensing refrigerant from the compressing means during the cooling operation, the external heat-exchanger means including at le

An air conditioning apparatus which carries out at least a cooling operation, comprising: compressing means for compressing refrigerant; external heat-exchanger means for condensing refrigerant from the compressing means during the cooling operation, the external heat-exchanger means including at least a lower side heat-exchanger means including at least a lower side heat-exchanger element and an upper side heat-exchanger element on the lower side heat-exchanger element, each heat exchanger element including a fluid pipe of a defined length connected in parallel to one another, the fluid pipe of the upper side heat-exchanger element having a discharge end for discharging refrigerant from the upper side heat-exchanger element during the cooling operation; external fan means for supplying air to the external heat-exchanger means, the external fan means including at least upper and lower side fan devices, each opposite to a corresponding heat-exchanger element; sensor means, thermally contacting the discharge end of the fluid pipe of the upper side heat-exchanger element, for detecting the condensation temperature of the external heat-exchanger means; and control means for controlling the rotation speed of the upper side fan device in response to the sensor means for maintaining the condensation pressure of the external heat-exchanger within a prescribed range.