| 摘要 |
PROBLEM TO BE SOLVED: To provide a freezer that can exit from a gas-liquid two-phase state when a specific place is in the gas-liquid two-phase state to exit from.SOLUTION: Indoor-side control devices 47, 57, and 67 switch control over valve opening positions from a first control state in which control is normally not in a gas-liquid two-phase state to a second control state when it is determined that a current state quantity is in a predetermined state in which the gas-liquid two-phase state to exit from is entered. A speed of shifting the valve opening positions of indoor expansion valves 41, 51, and 61 to smaller-opening positions is set to be faster in the second control state than in the first control state by making contribution of deviation in current state quantity to change in operation quantities of the valve opening positions of the indoor expansion valves 41, 51, and 61 from a control target value smaller in the second control state than in the first control state. |
