| 摘要 |
PURPOSE: A triple-utility heat pump system is provided to maintain the safety of a system even in case of cooling/heating or hot water dedicated operation. CONSTITUTION: A triple-utility heat pump system comprises a cold/hot water heat exchanger(21), a hot water heat exchanger(23), a geothermal heat exchanger(25), 4-way valves(31,32), a cooling device(33), and an auxiliary fan coil unit(35). The triple-utility heat pump system circulates thermal medium by a compressor(17) for cooling-and-heating and hot water supply. The cold/hot water heat exchanger, the hot water heat exchanger, and the geothermal heat exchanger constitute a thermal medium circulating line. The 4-way valve is serially connected to the lower part of a compressor and controls a flow path of the hot water heat exchanger. The cooling device is installed on coolant pipes(41,42,43,44,45) between the geothermal heat exchanger and the cold/hot water heat exchanger to supplement terrestrial heat shortage.
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