Hot water circulation system associated with heat pump and method for controlling the same
First Claim
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1. A hot water circulation system associated with a heat pump, comprising:
- an outdoor unit including a compressor, an outdoor heat-exchanger, and an expansion part, and performing a heat pump refrigerant cycle;
an indoor unit including a water-refrigerant heat-exchanger which performs heat exchange between a refrigerant discharged from the compressor and water; and
a hot water circulation unit receives heat from the heated water discharged from the indoor unit to perform hot water supply or heating; and
a connection pipe which connects inlet and outlet sides of the indoor unit to allow water passing through the water-refrigerant heat-exchanger to circulate inside the indoor unit, during a defrosting operation of the outdoor unit.
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Abstract
Disclosed is a hot water circulation system associated with a heat pump and a method for controlling the same. The present invention is advantageous in that heating or hot water supply can be performed smoothly even when an outdoor unit performing a heat pump cycle performs a defrosting operation.
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Citations
20 Claims
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1. A hot water circulation system associated with a heat pump, comprising:
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an outdoor unit including a compressor, an outdoor heat-exchanger, and an expansion part, and performing a heat pump refrigerant cycle; an indoor unit including a water-refrigerant heat-exchanger which performs heat exchange between a refrigerant discharged from the compressor and water; and a hot water circulation unit receives heat from the heated water discharged from the indoor unit to perform hot water supply or heating; and a connection pipe which connects inlet and outlet sides of the indoor unit to allow water passing through the water-refrigerant heat-exchanger to circulate inside the indoor unit, during a defrosting operation of the outdoor unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling a hot water circulation system associated with a heat pump, the hot water circulation system associated with a heat pump comprising an outdoor unit including a compressor, an outdoor heat-exchanger, and an expansion part to perform a heat pump refrigerant cycle;
- an indoor unit including a water-refrigerant heat-exchanger which performs heat exchange between a refrigerant discharged from the compressor and water, a water collection tank in which water passing through the water-refrigerant heat-exchanger is stored, and a water pump pumping water discharged from the water collection tank; and
a hot water circulation unit which receives heat from the water pumped by the water pump to perform hot water supply or heating, the method comprising;during a defrosting operation of the outdoor unit, allowing water discharged from the water collection tank to be introduced directly into the water-refrigerant heat-exchanger without performing any one of or both hot water supply and heating. - View Dependent Claims (10, 11, 12, 13, 14)
- an indoor unit including a water-refrigerant heat-exchanger which performs heat exchange between a refrigerant discharged from the compressor and water, a water collection tank in which water passing through the water-refrigerant heat-exchanger is stored, and a water pump pumping water discharged from the water collection tank; and
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15. A hot water circulation system associated with a heat pump, the hot water circulation system comprising:
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an outdoor unit including a compressor, an outdoor heat-exchanger, and an expansion part, and performing a heat pump refrigerant cycle; an indoor unit including a water-refrigerant heat-exchanger which performs heat exchange between a refrigerant discharged from the compressor and water, a water collection tank in which water passing through the water-refrigerant heat-exchanger is stored, and a water pump pumping water discharged from the water collection tank; a hot water supply unit performing heat exchange with water pumped by the water pump; a channel switching valve provided in an outlet side of the water pump; and a defrosting channel extended from the channel switching valve, wherein, during a defrosting operation, water pumped by the water pump flows along the defrosting channel to be mixed with water stored in the hot water supply unit, and some of the mixed water flows onto the water-refrigerant heat-exchanger. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification