| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner capable of performing an efficient dehumidifying operation during a heating operation and capable of preferentially keeping humidity within facility.SOLUTION: There are provided a refrigerant circuit 30 including an indoor heat exchanger 11 arranged inside agricultural livestock facility 50, an outdoor heat exchanger 21 arranged outside the facility 50, a compressor 23, an expansion valve 24, and changing-over means 25, and an indoor blower 12 for flowing air heat-exchanging with the indoor heat exchanger 11. When a heating operation for heating inside the facility 50 is carried out, a heating step for changing-over to a heating circuit for flowing high pressure refrigerant compressed by the compressor 23 into the indoor heat exchanger 11 to operate the indoor blower 12, a dehumidifying step for changing-over to a cooling circuit for flowing low pressure refrigerant of which pressure is reduced by the expansion valve 24 into the indoor heat exchanger 11 to operate the indoor blower 12 are performed. With this arrangement as above, it is possible to restrict excessive increasing in humidity within the facility 50 at the time of heating operation and preferentially keeping humidity there.SELECTED DRAWING: Figure 2 |
