應該是控製部分，取暖製冷由同一個繼電器常開常關控製，不能同時接通。

來源: 上海大男人於 2023-02-25 05:36:36 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.