| 摘要 |
A refrigerant circuit (15) is disposed which is formed by connection of an outdoor unit (11) and two indoor units (12, 13). And, the air conditioning capacity of the outdoor unit (11) is controlled such that the temperature of refrigerant circulating through the refrigerant circuit (15) becomes a target value and the target value is altered correspondingly to the state of an operation. In other words, the control characteristics of the target value are determined correspondingly to the air conditioning load characteristics of a building, and the target value is altered according to the control characteristics and based on the inside/outside temperature difference between an indoor set temperature and an outside air temperature. For example, during cooling mode operations, the control characteristics of an evaporating temperature target value are determined correspondingly to the cooling load characteristics of the building and thereafter the evaporating temperature target value is altered according to the control characteristics and based on the inside/outside temperature difference. And, the air conditioning capacity of the outdoor unit (11) is controlled such that an evaporating temperature that a low-pressure pressure sensor (74) detects becomes a target value. |
