Air conditioning apparatus
AssigneeMitsubishi Electric Corporation
InventorsRyuichi NAGATA, Yusuke TASHIRO
Life of this patent
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Abstract
An air conditioning apparatus includes a refrigerant circuit and a controller. The refrigerant circuit is configured to allow refrigerant to circulate through a compressor, a condenser, an LEV, and an evaporator. The LEV has an opening degree variable from a lower limit opening degree to an upper limit opening degree. The controller is configured to control the LEV to alternately repeat a first opening degree and a second opening degree in a range of less than or equal to a quarter of the upper limit opening degree, the second opening degree being smaller than the first opening degree.
Claims8
An air conditioning apparatus comprising:
- a refrigerant circuit configured to allow refrigerant to circulate through a compressor, a condenser, an expansion valve, and an evaporator;
- an outdoor unit containing one of the condenser and the evaporator and containing the compressor;
- an indoor unit containing the other one of the condenser and the evaporator;
- and
- a controller configured to control the expansion valve, wherein
- the expansion valve has an opening degree variable from a lower limit opening degree to an upper limit opening degree, and
- the controller is configured to control the expansion valve to alternately repeat a first opening degree and a second opening degree in a range of less than or equal to a quarter of the upper limit opening degree when a low-capacity operating condition including a first condition is satisfied, the second opening degree being smaller than the first opening degree, and the first condition being a condition that a magnitude of a difference between a set temperature and a temperature of air sucked into the indoor unit is smaller than a threshold value.
(canceled)
Dependencies are inferred from the claim text.