| 摘要 |
PURPOSE:To extremely efficiently perform the switching of respective operation modes, which contributes to the suppressing of a daytime power consumption quantity and the evening of daytime and nighttime power consumption quantities, when operation is performed by individually switching a circuit for general cooling or heating, circuit for cold accumulating or heat accumulation, circuit for cold radiation or heat radiation, or circuit for cooling which also works for the accumulation of cold heat or heating which also works heat accumulation. CONSTITUTION:A heat accumulating type air conditioning device is constituted of a compressor 1, four-way switching valve 19 for compressor, outdoor side heat-exchanger 17, first piping 38, first throttle device 3, first valve 16, a plurality of second throttle devices 24, 25, 26, a plurality of indoor side heat- exchangers 27, 28, 29, second piping 39, fourth valve 30, second valve 20 for by-pass pipe 40, third valve 23, refrigerant pump 13 which is connected to the by-pass pipe 40 in parallel, four-way switching valve 21 for the refrigerant pump, heat-exchanger 7 for heat accumulation in a heat accumulation tank 6, program timer 32 and control means 33.
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