14.1 Setting multi-stage windows (8 window) shall be provided, Temperature and humidity can be input for each. (Primer and Base process only, After entering the temperature & humidity, the enthalpy of each window is automatically calculated) 14.2 At startup : The closest difference between the outside air enthalpy and the set enthalpy is taken as the target window. 14.3 After heat-up : The target window is automatically switched. The window with the value closest to the outside air enthalpy is targeted, and the window is switched when this state is maintained for the set time. 14.4 Install use/non-use mode selection switch for multi-stage window on the GOT screen so that the mode can be selected for each process. (When switched from non-use mode to use mode, the target window is selected to the one closest to the one closest to the set enthalpy of non-use mode. 14.5 Target ASU for primer coat and Base coat that the process use water-based paint 14.6 The setting value of Recycle ASU shall be automatically changed in conjunction with Fresh ASU.