| 摘要 |
<p>The present invention provides a multiple-unit type air conditioner capable of executing stable refrigerant control even when the multiple-unit type air conditioner is operating in heating mode with a plurality of the indoor units in a stopped condition. The present invention also provides a control method for such an air conditioner. The air conditioner includes an outdoor unit (2) having an outdoor heat exchanger, a plurality of indoor units (3a to 3d) each having an indoor heat exchanger, a refrigerant circuit, electric motor operated valves (33a to 33d), a discharge pipe thermistor (24), and an outdoor controller (27). The refrigerant circuit links the outdoor heat exchanger, a compressor (20), and the indoor heat exchangers together. The electric motor operated valves (33a to 33d) are provided in the refrigerant circuit and serve to adjust the amount of refrigerant flowing into each of the indoor heat exchangers, respectively. The discharge pipe thermistor (24) serves to detect the temperature of the discharge pipe of the compressor (20). In situations in which a plurality of indoor units are stopped while the air conditioner is operating in heating mode, the outdoor controller (27) controls the opening degree of the electric motor operated valves (33b, 33c, 33d) corresponding to the indoor units (3b, 3c, 3d) that are stopped based on the temperature of the discharge pipe. The outdoor controller (27) also revises the opening degrees of the electric motor operated valves (33b, 33c, 33d) corresponding to the indoor units (3b, 3c, 3d) that are stopped on an individual basis. <IMAGE></p> |
