HEAT PUMP APPARATUS AND CONTROL METHOD FOR HEAT PUMP APPARATUS

• Main Authors: BABA MASANOBU, SAITO MAKOTO, OUA RYO, TAMAKI SHOGO
• Format: Patent
• Language: English
• Published: 21.11.2013
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

A heat pump apparatus includes a heat source unit that cools or heats a refrigerant, an indoor unit that performs a cooling operation, and a hot water supply unit that performs a hot water supply operation. When there is an operation request for one of the indoor unit and the hot water supply unit, even when there is no operation request for the other, the heat pump apparatus causes both the one and the other to operate if the other satisfies a certain condition so that the hot water supply unit performs a hot water supply operation by utilizing a refrigerant heated by performing a cooling operation in the indoor unit and the indoor unit performs a cooling operation by utilizing a refrigerant cooled by performing a hot water supply operation in the hot water supply unit.