①将蝶形风门调节手把指针对至“60°”，将反吹风板调至最底部，调节前部

①Aim the pointer of the butterfly damper adjustment handle to "60°", adjust the blowback plate to the bottom, and adjust the front tilt adjustment device to make the screen surface inclination about 7.5°; <br>②Turn on the suction system and check the system Whether it works normally;

(1) the butterfly door adjustment hand finger to "60 degrees", the back blower plate to the bottom, adjust the front inclination adjustment device so that the screen angle of about 7.5 degrees;<br>(2) Turn on the suction system to check whether the system is working properly;

① Adjust the pointer of butterfly damper adjusting hand to "60 °", adjust the reverse blower board to the bottom, and adjust the front tilt angle adjusting device to make the screen surface inclination angle about 7.5 °;<br>② Open the air suction system and check whether the system works normally;