| 摘要 |
<p>The system has a refrigeration circuit (KK) comprising a vaporizer (20) and an electronic expansion valve (100), where the refrigeration circuit is controlled by a regulator. A secondary circuit (SK) comprises a heat circulation pump (220), and is coupled with a condenser, where the circulation pump is activated in a normal operation mode. The circulation pump is switched-off in a defrosting operation mode, where two restrictor values in the expansion valve are respectively adjusted in the normal and defrosting operation modes by using the regulator. An independent claim is also included for a method for defrosting a heat pump system with a refrigeration circuit.</p> |
