Heat pump type water heater and Control method of it

摘要

The present invention relates to a heat pump type water heater and a control method thereof, wherein the water heater composed of a simultaneous type air conditioning unit and a water heating unit can perform a cooling and air conditioning operation mode of a plurality of indoor heat exchangers, a defrosting operation mode of an outdoor heat exchanger, or an oil collection operation mode at the same time by appropriately controlling a valve opening and closing unit. Therefore, installation costs of a product are reduced, and at the same time, a plurality of indoor heat exchangers can be provided.