| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat pump device that can speedily and securely discharge a liquid refrigerant from a compressor when the compressor is actuated, and prevents the compressor from being broken to have high reliability.SOLUTION: There is provided a heat pump device (2) that performs temperature control over a temperature control load as a circulating refrigerant changes in state by operating a compressor (14) provided to a refrigerant circuit (8) having an expansion valve (16), and includes an inverter (24) performing frequency control over the rotating speed of a compressor and a control part (26) controlling the output frequency of the inverter and the opening of the expansion valve, the control part performing actuation-time control to keep the opening of the expansion valve constantly at a prescribed actuation-time restriction opening (Ar) and the rotating speed of the compressor at a prescribed actuation-time restriction rotating speed (Rr) for a prescribed actuation-time control time (tr) after the compressor is actuated. |
