| 摘要 |
The object is to enable continuous operation of a heat pump unit without using a special device. A control unit (100) calculates a change rate (inflow temperature change rate) per predetermined time of an inflow temperature flowing into a heat dissipator (30) and a change rate (outflow temperature change rate) per predetermined time of an outflow temperature flowing out from the heat dissipater (30), sequentially since start of operation of a compressor (1). The control unit (100) sets, as the minimum temperature, the inflow temperature with which a difference between the inflow temperature change rate and outflow temperature change rate becomes equal to or less than a change rate threshold, and sets, as a target temperature, a temperature equal to or more than the minimum temperature. The control unit controls the compressor such that the inflow temperature becomes equal to the target temperature. |
