| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat pump type air conditioner which can be operated efficiently by increasing the heating capacity, as required, through an inexpensive arrangement and in which a compressor can be controlled to an appropriate temperature. SOLUTION: The heat pump type air conditioner comprises a delivery pressure controller having a delivery pressure control valve 20 and a control means 208 thereof, and a liquid injection controller having a liquid injection control valve 9 provided in a liquid injection circuit and a control means 98 thereof wherein the delivery pressure controller and the liquid injection controller are operated when heating capacity is required to be increased. |
