| 摘要 |
PURPOSE:To obtain hot-water of proper temperature and proper amount by a simple operation upon filling initially a bathtub with water by a method wherein the title bath system is provided with a temperature keeping control means, which heats hot-water in the bathtub by a heat exchanger for the bathtub when a detected hot-water temperature has become lower than the range of a set hot-water temperature and maintains the hot-water temperature within the range of the set hot-water temperature. CONSTITUTION:A heat source side unit 1 is equipped with a compressor 23, circulating and flowing refrigerant through a heat source side heat exchanger 22 and a heat exchanger 8 for a bathtub. When hot-water of a set temperature is obtained initially to a set level after starting the title system by a bath operating switch 34, the finishing signal of hotwater filling, which comes from a CPU 31 for the bathtub, is inputted into an outdoor side CPU 36 in an outdoor unit 1. Responding to the signal, a temperature keeping control means effects heating by the heat exchanger 8 for the bathtub by the operation control of four-way switching valves SV1, SV2 and electric expansion valves EV0, EV1, EV2, EV3 as well as the driving of the compressor 23 and an outdoor fan 22a when a detected hotwater temperature detected by a hot-water temperature sensor 16 has become lower than the range of a set hot-water temperature, whereby the detected hot-water temperature may be maintained within the range of the set hot-water temperature. |
