Integrated-Type Air-Conditioning System

An embodiment integrated-type air-conditioning system includes a refrigerant circuit including first and second refrigerant lines, a first coolant circuit including a battery, and a second coolant circuit including a PE part. The first refrigerant line includes a compressor, an indoor heat exchanger, a first expansion device, and an outdoor heat exchanger, and the second refrigerant line includes a second expansion device and an integrated heat exchanger. The second refrigerant line branches from a branch point between the indoor heat exchanger and the first expansion device in the first refrigerant line and branches from a point between the compressor and the indoor heat exchanger through a switching valve to be connected to the compressor. The first coolant circuit and the second coolant circuit are each connected to the integrated heat exchanger so as to allow a coolant to exchange heat with a refrigerant.