威斯曼燃气壁挂炉板换机剖面图

                                                               1– 烟气检测口 A=空气 F=烟气 

                                                               2 –风机
                                                               3 – 温度传感器
                                                               4 – 三通阀
                                                               5 – 燃气阀
                                                               6 – 注水阀
                                                               7 – 正压测口 
                                                               8 – 负压测口
                                                               9 – 风压开关
                                                               10- 空气室
                                                               11- 过热保护
                                                               12- 膨胀水箱
                                                               13- 燃烧室
                                                               14- 排气阀
                                                               15- 水泵
                                                               16 – 二次热交换器
                                                               17- 3 安全阀 
                                                               18- 排污阀
                                                               19- 集烟罩
                                                                20 – 主热交换器
                                                                21- 点火、火焰感应电极
                                                                22- 燃烧器