Patent ID: 9625197
Date: 2017-04-18
CPC Classifications: F25B,F25D,Y02B

Claim:
1. A constant-temperature liquid circulation apparatus comprising: a constant-temperature liquid circuit supplying a temperature-adjusted constant-temperature liquid to a load; a refrigeration circuit adjusting a temperature of the constant-temperature liquid by heat exchange of the constant-temperature liquid with a refrigerant; and a controller controlling the entire apparatus, wherein the refrigeration circuit includes: wherein the controller is configured to perform control such that the fan is not activated, or is activated to maintain a minimum rotation speed when a refrigerant pressure measured by the pressure sensor does not reach a reference pressure region after the compressor is activated, control the refrigerant pressure by performing inverter control on a rotation speed of the fan when the refrigerant pressure reaches the reference pressure region, and control a rotation speed of the compressor to be reduced from a high rotation speed which is a rotation speed during a steady operation while maintaining the rotation speed of the fan at a maximum rotation speed when the refrigerant pressure continues to further rise and reaches an upper limit value after a rotation of the compressor reaches the high rotation speed which is a rotation speed during a steady state operation and the rotation speed of the fan reaches the maximum rotation speed.