Patent ID: 8850837
Filing Date: 2014-10-07
Classification: F24D,F25B

Abstract:
1. A heat pump type speed heating apparatus, comprising: a cooling cycle circuit to circulate a first refrigerant to operate an air conditioning, the cooling cycle circuit including a compressor, an outdoor heat exchanger, an expansion apparatus, and an indoor heat exchanger; a hot water supply compressor to compress a second refrigerant; a hot water supply heat exchanger to condense the compressed second refrigerant and to heat water based on the condensed second refrigerant; a hot water supply tank to receive the heated water from the hot water supply heat exchanger; a hot water supply expansion apparatus to expand the second refrigerant from the hot water supply heat exchanger; a cascade heat exchanger to evaporate the second refrigerant expanded from the hot water supply expansion apparatus based on the first refrigerant from the compressor, and the first refrigerant to undergo condensation, expansion, and evaporation in the cooling cycle circuit; a water refrigerant heat exchanger connected to a water refrigerant heat exchanger connecting flow path for the first refrigerant that has passed through the cascade heat exchanger to be condensed, expanded, and evaporated in the cooling cycle circuit after heating water; and a water refrigerant heat exchanger refrigerant controller to selectively control flow of the first refrigerant such that the first refrigerant that has passed the cascade heat exchanger either passes through the water refrigerant heat exchanger or bypasses the water refrigerant heat exchanger.