| 摘要 |
<p>PURPOSE: An outdoor heat exchange is provided to vary a refrigerant passage according to cooling and heating modes. CONSTITUTION: An outdoor heat exchanger comprises a first header pipe (141a), a first heat exchange part (143a), a bypass pipe (144), a second header pipe (141b), a second heat exchange part (143b), a hot gas pipe (146), and a hot gas valve (149). A refrigerant compressed by the compressor flows into the first header pipe in a cooling mode. The first heat exchange part is connected to the first header pipe to heat-exchange the refrigerant with air. The refrigerant heat-exchanged by the first heat-exchange part successively passes the bypass pipe and the second header pipe in the cooling mode. The second heat exchange part is connected to the second header pipe to heat-exchange the refrigerant with the air. The hot gas pipe connects the first and second header pipes. The hot gas valve is arranged in the hot gas pipe to control the flow of the refrigerant.</p> |
