| 摘要 |
PURPOSE: An air source free frosting hot water generating device for preventing evaporation at a low temperature is provided to selectively choose a supply line for water among various lines for constantly supplying water to be used for a heat source in a second heat source supply unit. CONSTITUTION: An air source free frosting hot water generating device comprises a heating cycle unit(10), a heat source supply unit(20), a hot water generating unit(30), a second evaporator(40), and a second heat source supply unit(50). The heating cycle unit is successively connected to a compressor(110), a condenser(120), an expansion valve(130), and an evaporator(140) for comprising one cycle. The second evaporator additionally supplies the heat to a refrigerant as a heat source water between the compressor and the condenser. The second heat source supply unit supplies the water to the second evaporator.
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