Hybrid hot water supply system, and its operation control method

摘要

PROBLEM TO BE SOLVED: To achieve high efficiency and high an operation rate of an operation of a heat pump hot water supply means and to achieve high efficiency in the entire system, in a hybrid hot water supply system constituted by arranging an electric heat pump hot water supply means and an auxiliary hot water supply means composed of a combustion type water heater in parallel with each other to a hot water storage tank.;SOLUTION: This hybrid hot water supply system includes a first temperature sensor 16 detecting a water temperature of a high-temperature position of prescribed two points as different water temperatures when a water temperature distribution is generated in the hot water storage tank 1, and a second temperature sensor 17 for detecting a water temperature of a low-temperature position in the prescribed two points or a water temperature near a water outlet 14 formed on the low-temperature position. Start and stop of the auxiliary hot water supply means 3 are controlled on the basis of the detection temperature of the first temperature sensor 16, start and stop of the heat pump hot water supply means 2 are controlled on the basis of the detection temperature of the second temperature sensor 17, and the water supply temperatures of the heat pump hot water supply means 2 and the auxiliary hot water supply means 3 are controlled to the respective or common set water supply temperature when the operations are respectively started.;COPYRIGHT: (C)2011,JPO&INPIT