| 摘要 |
The present invention obtains an air conditioner device that is able to have more minute low-pressure gas piping even when a refrigerant having a low refrigerant density at low pressures is used. The present invention is provided with: a refrigerant cycling circuit (10) that comprises a compressor (1), a heat-source-side heat exchanger (3), a throttle device (20), and a use-side heat exchanger (21) connected by piping, and that cycles a refrigerant having a saturated refrigerant gas density at 0°C that is 35-65% of that of R410A refrigerant; and a supercooling means (supercooling heat exchanger (4), throttle device (5), and bypass circuit (7)) that, during a cooling operation, causes the solution temperature of high-pressure liquid refrigerant sent from the heat-source-side heat exchanger (3) to the throttle device (20) to be no greater than 5°C. |
