X18                       X14                         T12                        T15
------▏     ▏-----------------▏     ▏-------------------▏  /  ▏-----------------▏  /    ▏---------------------------------(     M26     ）
      水位最上限    ▏       自动                   水泵强制停止        水泵停止                ▏                           水泵启动
       X17              ▏                                                                                              ▏
------▏     ▏-------  ▏                                                                                              ▏--------------------（ T22  K20）
    水位上限         ▏                                                                                             ▏                           水泵 启动
                           ▏                                                                                              ▏
       M26             ▏                                                                                              ▏--------------------（T12 K1600）
------▏     ▏-------  ▏                                                                                                                           水泵强制停止    
    水泵启动

        X16                                               M26
------▏     ▏-------------------------------------▏     ▏-------------------------------------------------------------------（    M28     ）    
    水位下限            ▏                          水泵启动                                           ▏                                      水泵停止  
       M28                 ▏                                                                                   ▏                  
------▏     ▏------------                                                                                     -----------------------------（ T15  K20）
    水泵停止                                                                                                                                         水泵停止
        X17                                              X14  
------▏     ▏-------------------------------------▏     ▏--------------------------------------------------------------------（ T16  K80）
   水位上限                                          自动                                                                                   水位处上限最长时间

       X18                                               Y20
------▏     ▏-------------------------------------▏     ▏--------------------------------------------------------------------（ T20  K160）
     水位最上限                                   水泵 启动                                                                        水位处最上限最长时间


        X14                       T22                                                             X25  
------▏     ▏-----------------▏     ▏-------------------------------------------------▏  /    ▏---------------------------------(     Y20     ）
      自动                     水泵 启动          ▏                                    过热继电器动作                                 水泵 启动                
       X15                                              ▏
------▏     ▏------------------------------------
       手动
            X14                      X15
---------▏  /  ▏-----------------▏  /    ▏-------------------------------------------------------------------------------------（ T28  K20）
          自动                       手动                                                                                                           ON 循环状态停止

           T28                        X25                               T16                        T20
---------▏  /  ▏-----------------▏  /    ▏----------------------▏  /  ▏-----------------▏  /    ▏------------------------------（    M30     ）
ON 循环状态停止     过热继电器动作      水位处上限最长时间     水位处最上限最长时间                   OFF报警
           M30
---------▏  /  ▏------------------------------------------------------------------------------------------------------------------(     Y22     ）
         OFF报警                                                                                                                                           报警