| 摘要 |
PURPOSE: To effectively use the hot-water storage capacity by storing high- temperature hot-water up to the lower part of a hot-water storage tank at a low power consumption without an abnormal rise in temperature of a compressor. CONSTITUTION: A heat pump hot-water supply apparatus is provided with a refrigerant circuit having a compressor 1 and a refrigerant-water heat exchanger 2, a hot-water supply circuit having a hot-water storage tank 5 and a circulation pump 6, a temperature detector 7 that generates first signals and second signals that are higher temperature than the first signal, a rotative speed controller 8 that controls the rotative speed of the circulation pump 6 according to the first signal from the temperature detector 7 and an operation controller 9 that controls the rotative speed of the compressor 1 according to the second signal form the temperature detector 7. |
