To provide a heat pump type air-conditioning hot water supply device capable of achieving both of energy saving performance and comfort in an indoor space by executing a hot water generating operation by utilizing exhaust heat in air-cooling according to the load in a cooling operation by an indoor side heat exchanger.
The heat pump type air-conditioning hot water supply device includes a second refrigerant circuit 21 branched from between a compressor 1 and a four-way valve 2, and communicated with a first refrigerant circuit 20 between a supercooler 5 and a use-side expansion valve 6 through a hot water heat exchanger 22 and a hot water expansion valve 23, and a pressure sensor 71 and a temperature sensor 75 detecting a refrigerant super-heating degree of an outlet-side refrigerant of the use-side heat exchanger 7. The use-side heat exchanger 7 is functioned as an evaporator, an outdoor-side heat exchanger 3 and the hot water heat exchanger 22 are functioned as radiators when the refrigerant super-heating degree is a prescribed value or more, and only the hot water heat exchanger 22 is functioned as a radiator when the refrigerant super-heating degree is less than the prescribed value.
ISAYAMA YASUHIKO
NAKATANI KAZUTO
MORIWAKI SHUNJI
MATSUI MASARU
Daisuke Nagano
Kentaro Fujii