| 摘要 |
<p>To provide, at a low cost, a refrigeration device in which an appropriate oil concentration or oil viscosity can be readily maintained with regards to lubricating oil in a compressor and in which a cut in standby power can be achieved. The compressor (40) compresses a refrigerant circulating between an indoor heat exchanger (21) and an outdoor heat exchanger (31). A crank case heater (46) heats the lubricating oil in the compressor (40). A control device (50) controls the crank case heater (46). The control device (50) controls the crank case heater (46) so that the oil temperature of the lubricating oil in the compressor (40) reaches an oil temperature target value obtained by adding an oil temperature offset value to the saturation temperature of the refrigerant in the compressor (40).</p> |
