Industrial Technology Research Institute

Shy-Her Nian

Ling-Yu Chao

A heat pump air-conditioning system includes a four-way valve provided with a first opening, a second opening, a third opening and a fourth opening communicated with each other. The first opening, a compressor, a first heat exchanger, a first expansion device and the second opening are sequentially connected in series. The third opening, a second heat exchanger, a second expansion device, a third heat exchanger and the fourth opening are sequentially connected in series. A first bypass valve is connected in parallel with the first expansion device and is connected between the first heat exchanger and the second opening. A second bypass valve is connected in parallel with the second expansion device and the third heat exchanger and is connected between the third heat exchanger and the fourth opening. A liquid supply system is connected to the first heat exchanger.

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Changhua County, Taiwan

Shy-Her Nian