| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve calculation accuracy in the remaining hot water amount in a heat pump type hot-water supply apparatus of two-can type. <P>SOLUTION: The heat pump type hot-water supply apparatus includes: a hot-water storage tank 6 containing a water supply side tank 7 where a water supply pipe 9 is connected to a lower part thereof and a hot-water supply side tank 8 where a hot-water exit pipe 11 is connected to an upper part thereof; a connection pipe 10 which connects the upper part of the water supply side tank 7 and the lower part of the hot-water supply side tank 8; a heat pump type heating means 2 which heats the hot water taken out of the lower part of the water supply side tank 7 and returns it to the upper part of the hot-water supply side tank 8; and a remaining hot-water amount calculation means 39 which calculates the remaining hot-water amount in the hot-water storage tank 6 based on a detection temperature of a plurality of stored hot-water temperature sensors 19. The remaining hot-water amount calculation means 39, in a case where a detection temperature of the stored hot-water temperature sensor 19 of the water supply side tank 7 is higher than a detection temperature of the stored hot-water temperature sensor 19 at the lowermost part of the hot-water supply side tank 8, substitutes the temperature of the water supply side tank 7 for the temperature of the lowermost part of the hot-water supply side tank 8 to calculate the remaining hot-water amount. <P>COPYRIGHT: (C)2013,JPO&INPIT |
