| 摘要 |
PURPOSE:To control a hot gas bypass circuit at a low cost for the control method and device for a host gas by-pass circuit of a refrigerating circuit. CONSTITUTION:In the control method and device for a hot gas bypass circuit 56 of a refrigerating circuit 5, the by-pass circuit 56 is opened when the ambient temperature (t) of the refrigerating circuit is below a previously determined reference temperature X1, and the by-pass circuit 56 is closed when the ambient temperature is above a previously determine hunting-preventing temperature X2, which is slightly higher than the reference temperature X1, and when the ambient temperature is higher than the temperature X1 and lower than the temperature X2, the present opened or closed condition of the by-pass circuit 56 is kept as it is. |
