燃气壁挂炉的工作原理

2026-02-01 网络整理佚名1180

Key Point:当你按下控制面板的开机键后，壁挂炉开始进入工作状态：首先，风机启动向室外排气（预清扫阶段，排出燃烧室的残存气体），同时使燃烧室形成负压；接着，风压开关将指令发给循环水泵令其启动

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