| 摘要 |
An air conditioner, comprising a refrigerant circuit (15) having an outdoor unit (11) and two indoor units (12, 13) connected to each other, wherein the air conditioning capacity of the outdoor unit (11) is controlled so that the temperature of the refrigerant circulating the refrigerant circuit (15) reaches a target value, and the target value is varied according to the operating conditions, i.e., the control characteristics of the target value are determined according to the air conditioning load characteristics of a building and, the target value based on a temperature difference between a set indoor temperature and an outside air temperature is varied according to the control characteristics, for example, during cooling operation, after the control characteristics of the target value of an evaporation temperature is determined according to the cooling load characteristics of the building, the target value of the evaporation temperature based on the temperature difference between indoor and outdoor temperatures is varied according to the control characteristics, and the air conditioning capacity of the outdoor unit (11) is controlled so that the evaporation temperature detected by a low pressure sensor (74) reaches the target value.
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