PURPOSE: cold boiling water feeding mechanism is used to a kind of heat pump type for heating and cooling down and provides to obtain efficient water-heating use electric energy than normal heat pump. ;CONSTITUTION: it includes compressor (10), first heat exchanger (20), expansion valve (30-1,30-2) that cold boiling water feeding mechanism, which is used for a kind of heat pump type for heating and cooling down, second heat exchanger (40) and third heat exchanger. Compressor is by refrigerant compression to high pressure and high temperature. First heat exchanger, expansion valve and second heat exchanger are configured to make refrigerant circulation and compressor. The refrigerant that third heat exchanger, first heat exchanger and expansion valve are placed in and are discharged by between is in first heat exchanger and the first refrigerant circuit and second refrigerant. First refrigerant is supplied to expansion valve, which second refrigerant restores and slip over the first refrigerant not contact second heat exchanger by second heat exchanger boiler compressor. ;The 2012 of copyright KIPO submissions
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