| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat storage type air conditioner capable of restricting uncomfortable time and opportunity as much as possible. SOLUTION: A cold and heat accumulator 40 is provided with a cold and heat accumulating vessel 5 connected to an approach passage and a return passage forming a refrigerant circulation passage between an outdoor unit 20 and an indoor unit 30 and a plurality of opening/closing valves or selector valves 7-10 capable of switching refrigerant circulating condition between a first refrigerant circulating condition wherein the refrigerant flowing into/out of the outdoor unit 20 flows to the only indoor unit 30 and a second refrigerant circulating condition wherein the refrigerant flows to the only cold and heat accumulation vessel 5. A control means 5o is provided to control the opening/closing valves or the selector valves to form the second refrigerant circulating condition when operating cold accumulation, and to control opening of a throttle device of the outdoor unit so that a difference between refrigerant temperature in an outlet of the cold and heat accumulation vessel and refrigerant temperature in an inlet thereof is lowered to a set value or less, and to control opening of the throttle device so that a difference between refrigerant temperature on a suction side of a compressor and refrigerant temperature in the outlet of the cold and heat accumulation vessel is lowered to the predetermined value or less when opening of the throttle device is lowered to the predetermined value. COPYRIGHT: (C)2005,JPO&NCIPI |
