| 摘要 |
<p>The system has two heat exchangers (4, 7) switched with respect to an order of flow with a cooling medium relative to each other and with respect to an expansion valve (8). The heat exchanger (4) is operated as a vaporizer, and the heat exchanger (7) is operated as a condenser in a switching condition of a directional reversing valve (11). The heat exchanger (7) is operated as a condenser and the heat exchanger (4) is operated as the vaporizer in another switching condition of the reversing valve.</p> |
