| 摘要 |
PROBLEM TO BE SOLVED: To increase the quantity of heat to be collected while saving energy and enhancing the reliability by collecting waste heat from a bathtub and the atmospheric heat simultaneously. SOLUTION: The heat pump type hot water supply system for bath comprises a compressor 1, a condenser 2, a first pressure reducing means 3, an evaporator 4 for collecting atmospheric heat or solar heat, a second pressure reducing means 5, a heat exchanger 6 for recovering heat, a channel control means 7 for controlling the coolant flow, a heat exchanger 12 for bath, a first heat collection detecting means 14 for detecting heat collection of the evaporator 4, a second heat collection detecting means 16 for detecting heat collection of the heat exchanger for recovering heat, and an operation control means 19 for receiving signals from the first and second heat collection detecting means 14, 16 and controlling the channel control means 7. According to the structure, high heat collection high efficiency operation is effected by collecting the heat of residual hot water in a bathtub and the atmospheric heat simultaneously and the quantity of heat to be collected can be increased while enhancing the reliability of apparatus when the heat can not be collected simultaneously by supplying coolant to any one of the evaporator 4 and the heat exchanger 6 for recovering heat. |
