HEAT PUMP-TYPE HOT-WATER SUPPLY DEVICE

摘要

A heat pump type hot water supply device is provided with a heat source side heat pump unit having a heat radiating heat exchanger that condenses refrigerant to radiate heat from the refrigerant. The hot water supply device is provided with a water tank that stores water, a water supply pipe that supplies water to the water tank from the outside, a water circulation pipe that is extended in a bypassing manner and circulates the water in the water tank from a bottom section to an upper section, a heat absorbing heat exchanger that is arranged on the water circulation pipe and connected to the heat radiating heat exchanger of the heat source side heat pump unit so as to absorb heat, and a hot water supply unit that comprises a hot water supply pipe that supplies warm water in the upper section of the water tank to the outside. The water supply pipe is branched into a plurality of water supply paths including a first water supply path and a second water supply path. The first water supply path supplies water supplied from the outside directly to the water tank. The second water supply path supplies water to the water tank after the water quality of the water from the outside is improved by the water quality adjusting unit so as to hardly generate scale. Accordingly, one of or both of the water supply paths are selectively used according to the water quality of the supplied water. This suppresses the deposition of scale.