| 摘要 |
PURPOSE:To reduce production of a cold draft feeling, by providing an air temperature detecting means, a first fan control means, driven by means of a set airflow when air temperature reaches a first reference value, and a second fan control means, driven when the air temperature reaches a second reference temperature further higher than the first reference temperature. CONSTITUTION:The capacity of a compressor 1 is controlled by an inverter 2, and a delivery piping 3 and a suction piping 4 are connected to a 4-passage switching valve 5. Heating operation is effected in a way that the coolant delivered from the compressor 1 is circulated from an indoor heat exchanger 18 to an outdoor heat exchanger 8, and reversely, cooling operation is effected by reverse circulation. Upon the starting of first heating operation through ON control of an operation switch 42, after a heat exchange temperature Tc reaches a first reference temperature TR, an indoor fan 19 is driven by means of a set airflow. On the other hand, upon the starting of following operation through ON of a thermo, after the heat exchange temperature Tc reaches a second reference temperature (TR+TN) higher than the first reference temperature, control is made so that the indoor fan 19 is driven by means of a set airflow. This constitution produces a rapid heating feeling and reduces production of a cold draft feeling on the user.
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